Public Ground

Plate 10 of 102ManhattanManhattan Community Board 9

1727 Amsterdam Avenue

This site can hold about 230–292 homes under the zoning maximum for qualifying affordable housing. The top of that range is set by the dwelling unit limit (ZR 23-52); qualifying senior housing is exempt from it and could hold up to about 329. The City's LIFT tracker lists 200 homes.

The tracker's 200 is the approved nine-story building, including a superintendent's unit.

  • Index entry
  • Tracker status: Post Public Approval
  • Lead agency: HPD

View in ZoLaChecks and sources

Plate 10. 1727 Amsterdam Avenue: block 2060, lot 1, Manhattan. The site is tinted pink; neighboring lots are outlined and other City-owned lots are hatched.2060206151619111214184647525556575860750212314192426293031323334353637381361Amsterdam AvenueConvent AvenueWest 145th StreetWest 146th StreetN0150 ft

Block 2060, lot 1Tax lots from MapPLUTO; street names from the Digital City Map. Pink: this site. Hatched: other City-owned lots. Heavy lines: block edges.

What City documents say

Facts from City documents that bear on the figures below. Each is quoted in the sources, and each speaks as of its document's date.

  • 1974 health-services building on the lot is to be demolished

    The lot holds a four-story, 59,209 sq ft City-owned health-services building from 1974, operated by NYC Health + Hospitals and occupied by the Bowen Center and another healthcare nonprofit (City Planning, February 2026). City Planning's report says the building, plaza and parking would be demolished for the new development, and HPD's application says the Bowen Center will move back into the new building once it is complete.

  • City approved the 200-home project in 2026 (C 260071 HAM)

    The City Planning Commission voted on HPD's UDAAP and disposition application C 260071 HAM on February 18, 2026, and City Council review was completed on March 26, 2026. HPD's application and City Planning's report describe the 200-home building as as-of-right under the existing zoning.

  • City gives a smaller lot area than the tax-lot data

    City Planning and HPD describe the site as a 30,808 sq ft L-shaped zoning lot (2025-2026), about 10,550 sq ft less than the recorded tax-lot area of 41,360 sq ft. The figures here use the recorded area, so they may overstate what the lot allows.

Floor area follows exactly from the Zoning Resolution. Homes are a range, because unit size and building efficiency are choices.

Lot area
41,360 sq ft
Zoning district
R6A, R7A, R7D; commercial overlay C1-4
Maximum residential floor area
159,752 sq ft14,538.5 sq ft R6A × 3.00 + 13,411.4 sq ft R7A × 4.00 + 13,410.2 sq ft R7D × 4.66
With qualifying affordable or senior housing
198,988 sq ft14,538.5 sq ft R6A × 3.90 + 13,411.4 sq ft R7A × 5.01 + 13,410.2 sq ft R7D × 5.60
Maximum community facility floor area
159,752 sq ft14,538.5 sq ft R6A under a C1-4 overlay × 3.00 + 13,411.4 sq ft R7A under a C1-4 overlay × 4.00 + 13,410.2 sq ft R7D under a C1-4 overlay × 4.66

Homes, as a range

CaseHomesHow
Low232198,988 sq ft × 0.7 ÷ 599 sq ft
Base287198,988 sq ft × 0.8 ÷ 553 sq ft
High292198,988 sq ft × 0.85 ÷ 514 sq ft = 329, capped at 198,988 ÷ 680 (ZR 23-52)

Floor area × efficiency ÷ average home size. Efficiency 0.7–0.85; average home 514–599 sq ft. Assumptions and their basis.

What binds first

Split zoning (needs a closer read)

The lot is divided between zoning districts (R6A, R7A and R7D), each covering at least a tenth of it. Floor area is computed portion by portion. Where the district line falls on the lot shapes what can go where, so the figures above deserve a closer read against the zoning map.

What the neighborhood asked for

Manhattan Community Board 9's formal requests to the City, from its annual Statement of Community District Needs and Budget Requests.

Each quotation below was found word for word on the cited page by script. None reviewed by a person yet.

Housing the board asked for

  • HousingCapital request to Department of Housing Preservation & Development

    Provide more housing for seniors

    “Provide more funding to construct and renovate housing for seniors, particularly in naturally-occurring retirement communities (NORCs) and restore funding for Section 202 program for seniors.”

    FY2027 statement, p. 64 · priority 3 of 10 within the agency · awaiting a person's review

    ResponseThe Executive Budget includes a city-wide allocation for this work. Specific locations are determined by the Agency.

  • HousingExpense request to Department of Housing Preservation & Development

    Provide, expand, or enhance programs for homeowners and first-time homebuyers

    “Funding for additional NYC Accelerator technical services for HDFCs and small property owners to comply with Local Law 97”

    FY2027 statement, p. 82 · priority 6 of 6 within the agency · awaiting a person's review

    ResponseFunding and/or headcount was recently added. OMB supports the agency's position as follows:

Other requests in these categories

  • Older adultsCapital request to Department for the Aging

    Renovate or upgrade a senior center

    “Provide funds to repair Hamilton Grange Senior Center damaged by flooding during Hurricane Ida, including kitchen renovation (with new freezer, stove, counters, and working sink), …”

    FY2027 statement, p. 56 · priority 1 of 3 within the agency · awaiting a person's review

    ResponseFurther study by the agency of this request is needed.

  • Older adultsCapital request to Department for the Aging

    Renovate or upgrade a senior center

    “Provide funds for the renovation and repair of roof and interior of Wilson Major Morris Center”

    FY2027 statement, p. 56 · priority 2 of 3 within the agency · awaiting a person's review

    ResponseFurther study by the agency of this request is needed.

  • Older adultsCapital request to Department for the Aging

    Renovate Senior Center at Hamilton Grange

    “Provide Funding to repair Hamilton Grange Senior Center's damaged flooding during Hurricane Ida, including kitchen renovation ( with new freezer, stove, counter, and working sink) …”

    FY2027 statement, p. 69 · priority CS within the agency · awaiting a person's review

    ResponseFurther study by the agency of this request is needed.

  • Older adultsCapital request to Department for the Aging

    Renovate or upgrade a senior center

    “Provide funds to replace the non-working elevator with an ADA-compliant elevator at the Jackie Robinson Senior Center at 1302 Amsterdam Avenue. …”

    FY2027 statement, p. 56 · priority 3 of 3 within the agency · awaiting a person's review

    ResponseFurther study by the agency of this request is needed.

  • LibrariesCapital request to New York Public Library

    Create a new, or renovate or upgrade an existing public library

    “Provide funds to maintain heating and cooling systems at the George Bruce and Hamilton Grange Libraries”

    FY2027 statement, p. 70 · priority CS within the agency · awaiting a person's review

    ResponseThis request includes more than one proposal. The agency has recommended funding for this request in part. OMB supports the agency's position.

  • LibrariesCapital request to New York Public Library

    Create a new, or renovate or upgrade an existing public library

    “Provide funds to install new roofs, windows, doors, fire alarm, security, ADA compliance, elevator replacements, and technology upgrades at George Bruce and Hamilton Grange Libraries”

    FY2027 statement, p. 70 · priority CS within the agency · awaiting a person's review

    ResponseThis request includes more than one proposal. The agency has recommended funding for this request in part. OMB supports the agency's position.

  • LibrariesExpense request to New York Public Library

    Extend library hours, expand library programs, and enhance library collections

    “Increase NYPL funding to provide initiatives such as outdoor programming and continued digital services”

    FY2027 statement, p. 83 · priority 1 of 3 within the agency · awaiting a person's review

    ResponseRestoring and/or increasing funding is needed for this request. It is recommended that this request be brought to the attention of your elected officials i.e. Borough President and/or City Council Member.

  • LibrariesExpense request to New York Public Library

    Extend library hours, expand library programs, and enhance library collections

    “Maintain funds to continue six-day service including increased hours, programming, collections, and sufficient staff to support theses functions.”

    FY2027 statement, p. 83 · priority 2 of 3 within the agency · awaiting a person's review

    ResponseRestoring and/or increasing funding is needed for this request. It is recommended that this request be brought to the attention of your elected officials i.e. Borough President and/or City Council Member.

9 more requests in these categories are in the board's statement.

17 other requests in these categories are listed on the web page.

What gets in the way

Flags are flags, not verdicts. Each comes from a public layer, named in the sources.

  • Caution

    Recorded lot area and drawn lots differ

    The recorded lot area, 41,360 sq ft, is 29% more than the drawn outlines (about 32,065 sq ft). The figures use the recorded area, so if the outlines are right they are about 29% too high. MapPLUTO does not say which is right.

  • Caution

    Split zoning

    The lot is divided between zoning districts (R6A, R7A and R7D), each covering at least a tenth of it. Floor area is computed portion by portion.

  • Caution

    The lot has a building on it

    The lot has a building on record with 59,209 sq ft of gross building area, completed around 1974 (MapPLUTO; gross area includes space zoning does not count). Zoning counts floor area already on a lot toward its maximum, so the figures above are the most the land could hold in total, not what could be added while that building stands.

Nearest subway station: 145 St (A B C D), 780 ft in a straight line.

What this doesn't account for

Public data and the zoning text answer the questions above. These need information that is not public, or a decision that belongs to the City.

  • Public land use review (ULURP). Selling or leasing City land, or approving a housing project on it, generally goes through ULURP (community board, borough president, City Planning Commission, City Council), and this estimate does not presume the outcome.
  • Disposition of City property (Charter 384 / UDAAP). Transferring the land needs Mayoral approval under Charter Sec. 384 and, for HPD projects, usually Urban Development Action Area designation and project approval under NY General Municipal Law Article 16.
  • Environmental review (CEQR/SEQRA). Any discretionary approval, disposition or City funding triggers CEQR/SEQRA review, which can require mitigation (e.g. for hazardous materials, noise or historic resources) or reshape the project.
  • (E) designations. A lot with an (E) designation or environmental restrictive declaration for hazardous materials, air quality or noise cannot receive building permits until the Office of Environmental Remediation signs off.
  • Subsurface and site conditions. Unknown soil, rock, groundwater and contamination can shrink or eliminate cellars and add foundation and cleanup costs, and HPD requires every project to investigate and, if needed, remediate contamination.
  • Deed restrictions and reverter clauses. Land the City bought or sold may carry deed restrictions or reverter clauses limiting its use, which must be checked in title records (ACRIS) and DCAS's deed-restriction database.
  • Parkland alienation. If a site is municipal parkland, it cannot be sold or used for housing without an act of the State Legislature signed by the Governor.
  • Current occupants, uses and agency plans. Many City-owned lots are in active use or assigned to an agency, or have funded capital projects, and this estimate does not reflect relocation needs or agency plans (check COLP and the Capital Commitment Plan).
  • Mapped streets, easements and utilities. Mapped-but-unbuilt ('paper') streets, sewer and water easements and utility lines can take land out of the buildable area, and no permit may be issued for a building in the bed of a mapped street.
  • Street access. A lot with no frontage on a mapped street cannot get a building permit on its own and must be combined with a neighboring lot or have access mapped.
  • Landmarks review. Sites that are individual landmarks or inside historic districts need Landmarks Preservation Commission approval, which can limit demolition, height and bulk.
  • Flood-resistant construction. Sites in the 1% annual chance floodplain (or the 0.2% shaded X-Zone for critical facilities) must meet Building Code Appendix G, whose elevation and floodproofing rules can cost usable ground-floor and cellar space.
  • Airport height limits. Near JFK, LaGuardia and Floyd Bennett Field, zoning flight-obstruction surfaces cap building height, and tall structures anywhere need FAA notice.
  • State and federal funding conditions. Federal or State money brings its own requirements (e.g. HUD environmental review under 24 CFR Part 58, Davis-Bacon prevailing wages, Section 3 hiring) that can change cost, timing and program.
  • Zoning capacity is a ceiling, not a plan. The figures show what zoning allows, and actual HPD projects often build less, for example to fit neighborhood context, a community facility or funding limits.

Checks

What has been verified on this page, and by what.

Tax lots (1)
1-02060-0001Confirmed against Land Use Application 2025M0424, LR Item 3: Description of Proposal (Hill Top Apartments, 1727 Amsterdam Avenue)
Lot and zoning records compared with DCP's live data
Agrees
Figures reproduced by a separate calculation
Agrees
Notes
On September 25, 2026, the MapPLUTO records and zoning district map behind this page were compared with DCP's live MapPLUTO (26v2) and zoning district layers for its lot; every compared field and district boundary matched. A separate calculation, written from the method page and run on the same downloaded City data on September 25, 2026, reproduced the lot area (41,360 sq ft), the zoning portions, the floor area (standard 159,752; with qualifying affordable or senior housing 198,988; community facility 159,752 sq ft), the homes (low 232, base 287, high 292), and the flags and what limits the site first.

Open data issues for this site are listed on the method page.

Sources

Superscript numbers next to figures refer to this list. Select one to see the source.

  1. LIFT Tracker (Land Inventory Fast Track), ArcGIS layer LIFT_Tracker/FeatureServer/0Dataset · NYC Mayor's Office · as of July 30, 2026 · retrieved September 23, 2026
  2. Land Use Application 2025M0424, LR Item 3: Description of Proposal (Hill Top Apartments, 1727 Amsterdam Avenue), PDF page 1, Section I (Introduction)Document · NYC Department of Housing Preservation and Development (applicant), filed with NYC Department of City Planning (ZAP) · as of September 10, 2025
  3. Land Use Application 2025M0424, LR Item 3: Description of Proposal, PDF page 4, Section VDocument · NYC Department of Housing Preservation and Development (applicant), filed with NYC Department of City Planning (ZAP) · as of September 10, 2025
  4. City Planning Commission report C 260071 HAM (1727 Amsterdam Avenue), page 2, 'Background'Document · NYC Department of City Planning / City Planning Commission · as of February 18, 2026“The site, which is owned by the City and operated by NYC …”
  5. City Planning Commission report C 260071 HAM (1727 Amsterdam Avenue), page 6, proposed developmentDocument · NYC Department of City Planning / City Planning Commission · as of February 18, 2026
  6. Land Use Application 2025M0424, LR Item 3: Description of Proposal, PDF page 4, Section IV (existing conditions)Document · NYC Department of Housing Preservation and Development (applicant), filed with NYC Department of City Planning (ZAP) · as of September 10, 2025
  7. ZAP project 2025M0424, 1727 Amsterdam Avenue — Hill Top Apartments, included actions[0] (UDAAP); milestones: City Planning Commission Vote 2026-02-18, City Council Review completed 2026-03-26Document · NYC Department of City Planning, Zoning Application Portal (API) · as of June 12, 2026
  8. City Planning Commission report C 260071 HAM (1727 Amsterdam Avenue), page 2, 'Background'Document · NYC Department of City Planning / City Planning Commission · as of February 18, 2026“The development site, located at 1727 Amsterdam Avenue (Block 2060, Lot 1), …”
  9. MapPLUTO 26v2Dataset · NYC Department of City Planning · as of September 9, 2026 · retrieved September 25, 2026
  10. Zoning Resolution § 23-22, R6A: 3.00 FARZoning Resolution · NYC Department of City Planning · as of September 10, 2026
  11. Zoning Resolution § 23-22, R7A: 4.00 FARZoning Resolution · NYC Department of City Planning · as of September 10, 2026
  12. Zoning Resolution § 23-22, R7D: 4.66 FARZoning Resolution · NYC Department of City Planning · as of September 10, 2026
  13. Zoning Resolution § 23-22, R6A, qualifying affordable housing or qualifying senior housing: 3.90 FARZoning Resolution · NYC Department of City Planning · as of September 10, 2026
  14. Zoning Resolution § 23-22, R7A, qualifying affordable housing or qualifying senior housing: 5.01 FARZoning Resolution · NYC Department of City Planning · as of September 10, 2026
  15. Zoning Resolution § 23-22, R7D, qualifying affordable housing or qualifying senior housing: 5.60 FARZoning Resolution · NYC Department of City Planning · as of September 10, 2026
  16. Zoning Resolution § 33-121, C1-4; C1-4 mapped within R6A or R7B Districts (suffixed variants included per ZR 11-25) — zoning lot containing only community facility use (Column B); a zoning lot with both commercial and community facility uses: 3.00 total (Column C): 3.00 FARZoning Resolution · NYC Department of City Planning · as of September 10, 2026
  17. Zoning Resolution § 33-121, C1-4; C1-4 mapped within R7D District (suffixed variants included per ZR 11-25) — zoning lot containing only community facility use (Column B); a zoning lot with both commercial and community facility uses: 4.66 total (Column C): 4.66 FARZoning Resolution · NYC Department of City Planning · as of September 10, 2026
  18. Zoning Resolution § 33-121, C1-4; C1-4 mapped within R7A or R8B Districts (suffixed variants included per ZR 11-25) — zoning lot containing only community facility use (Column B); a zoning lot with both commercial and community facility uses: 4.00 total (Column C): 4.00 FARZoning Resolution · NYC Department of City Planning · as of September 10, 2026
  19. Declared assumption: building efficiency, low 0.7, base 0.8, high 0.85Declared assumption · as of September 23, 2026
  20. Declared assumption: average home size (net), low 514, base 553, high 599 sq ftDeclared assumption · as of September 23, 2026
  21. Zoning Resolution § 23-52, Dwelling unit factor 680Zoning Resolution · NYC Department of City Planning
  22. Zoning districts (NYZD)Dataset · NYC Department of City Planning · as of August 17, 2026 · retrieved September 25, 2026
  23. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027, PDF p. 64Document · NYC Department of City Planning · retrieved September 23, 2026
  24. FY2027 Register of Community Board Budget Requests (Adopted Budget), Manhattan Community Board 9 FY2027 Adopted, Agency responseDocument · NYC Office of Management and Budget · as of June 30, 2026
  25. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027, PDF p. 82Document · NYC Department of City Planning · retrieved September 23, 2026
  26. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027, PDF p. 56Document · NYC Department of City Planning · retrieved September 23, 2026
  27. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027, PDF p. 69Document · NYC Department of City Planning · retrieved September 23, 2026
  28. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027, PDF p. 70Document · NYC Department of City Planning · retrieved September 23, 2026
  29. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027, PDF p. 83Document · NYC Department of City Planning · retrieved September 23, 2026
  30. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027, PDF p. 67Document · NYC Department of City Planning · retrieved September 23, 2026
  31. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027, PDF p. 84Document · NYC Department of City Planning · retrieved September 23, 2026
  32. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027, PDF p. 63Document · NYC Department of City Planning · retrieved September 23, 2026
  33. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027, PDF p. 59Document · NYC Department of City Planning · retrieved September 23, 2026
  34. MTA Subway StationsDataset · Metropolitan Transportation Authority · as of September 25, 2026 · retrieved September 25, 2026
  35. Digital City Map street centerlinesDataset · NYC Department of City Planning · as of December 1, 2025 · retrieved September 25, 2026
  36. New York City Charter Sec. 197-c (Uniform land use review procedure), Sec. 197-c(a)(8) and (a)(10)Document
  37. NYC Charter Sec. 384 (Disposal of property of the city), Sec. 384(a)Document
  38. CEQR Technical Manual, Chapter 2 (December 2025 edition), PDF p. 1 (printed p. 2-1)Document
  39. Zoning Resolution 11-15 (Environmental Requirements), ZR 11-15(a); last amended 2012-03-28Document
  40. HPD Design Guidelines for New Construction 2026, PDF p. 13, Secs. 1.1.1 and 1.1.4Document
  41. Deed Restriction Database (NYC Open Data rfu7-paqe), dataset descriptionDocument
  42. Handbook on the Alienation and Conversion of Municipal Parkland (NYS OPRHP, revised 2017-09-01), PDF p. 3, 'Parkland Alienation'Document
  43. City Owned and Leased Property (COLP), NYC Open Data fn4k-qyk2, dataset description (version 20260430)Document
  44. NY General City Law Sec. 35, GCL 35Document
  45. NY General City Law Sec. 36, GCL 36Document
  46. LPC - Applications page, page textDocument
  47. 2022 NYC Building Code, Appendix G (as amended by Local Law 77 of 2023), PDF p. 1, Sec. G102.1Document
  48. Zoning Resolution 61-21 (Restriction on Highest Projection of Building or Structure), ZR 61-21; 61-11 designates JFK, LaGuardia and U.S. Naval Air Station (Floyd Bennett Field)Document
  49. HPD ELLA Term Sheet (updated 2020-03-10), PDF p. 4Document
  50. CPC report C 260071 HAM (1727 Amsterdam Avenue), PDF p. 8Document
  51. Commercial Overlay Districts (NYCO) 202607Dataset · NYC Department of City Planning · as of August 17, 2026 · retrieved September 25, 2026
1. LIFT Tracker (Land Inventory Fast Track)
Dataset · NYC Mayor's Office
Where
ArcGIS layer LIFT_Tracker/FeatureServer/0
As of
July 30, 2026
Retrieved
September 23, 2026

One point per project. BBLs resolved by point-in-lot against MapPLUTO, HPD's Local Law 125 report, or address geocoding; see the method page.

Open source

2. Land Use Application 2025M0424, LR Item 3: Description of Proposal (Hill Top Apartments, 1727 Amsterdam Avenue)
Document · NYC Department of Housing Preservation and Development (applicant), filed with NYC Department of City Planning (ZAP)
Where
PDF page 1, Section I (Introduction)
As of
September 10, 2025

disposition of the City-owned lot located at 1727 Amsterdam Avenue (Block 2060, Lot 1, the “Development Site”) in Hamilton Heights, Manhattan Community District 9

Open source

3. Land Use Application 2025M0424, LR Item 3: Description of Proposal
Document · NYC Department of Housing Preservation and Development (applicant), filed with NYC Department of City Planning (ZAP)
Where
PDF page 4, Section V
As of
September 10, 2025

The Proposed Development is a new nine-story building containing approximately 200 affordable units, including a superintendent’s unit. ... The as-of-right building will include a mix of studios, one-, two-, and three-bedroom units

Open source

4. City Planning Commission report C 260071 HAM (1727 Amsterdam Avenue)
Document · NYC Department of City Planning / City Planning Commission
Where
page 2, 'Background'
As of
February 18, 2026

The site, which is owned by the City and operated by NYC Health + Hospitals (HHC), is currently improved by a four-story, 59,209-square-foot public facility building constructed in 1974 that is occupied by the Bowen Center and another healthcare nonprofit.

Open source

5. City Planning Commission report C 260071 HAM (1727 Amsterdam Avenue)
Document · NYC Department of City Planning / City Planning Commission
Where
page 6, proposed development
As of
February 18, 2026

The existing building, along with the plaza and parking, would be demolished to make way for the proposed development. ... for a total of 200 units. ... The proposed building would be developed as-of-right under the existing R6A, R7A, and R7D districts.

Open source

6. Land Use Application 2025M0424, LR Item 3: Description of Proposal
Document · NYC Department of Housing Preservation and Development (applicant), filed with NYC Department of City Planning (ZAP)
Where
PDF page 4, Section IV (existing conditions)
As of
September 10, 2025

Upon building completion, the Emma L. Bowen Community Service Center will be relocated back to the Proposed Development.

Open source

7. ZAP project 2025M0424, 1727 Amsterdam Avenue — Hill Top Apartments
Document · NYC Department of City Planning, Zoning Application Portal (API)
Where
included actions[0] (UDAAP); milestones: City Planning Commission Vote 2026-02-18, City Council Review completed 2026-03-26
As of
June 12, 2026

Record excerpt"statuscode": "Approved", "statecode": "Active", "dcp-ulurpnumber": "C260071HAM"

Open source

8. City Planning Commission report C 260071 HAM (1727 Amsterdam Avenue)
Document · NYC Department of City Planning / City Planning Commission
Where
page 2, 'Background'
As of
February 18, 2026

The development site, located at 1727 Amsterdam Avenue (Block 2060, Lot 1), is an L-shaped, 30,808-square-foot zoning lot bounded by West 146th Street to the north, Convent Avenue to the east, West 145th Street to the south, and Amsterdam Avenue to the west.

Open source

9. MapPLUTO 26v2
Dataset · NYC Department of City Planning
As of
September 9, 2026
Retrieved
September 25, 2026

Open source

10. Zoning Resolution § 23-22
Zoning Resolution · NYC Department of City Planning
Where
R6A: 3.00 FAR
As of
September 10, 2026

R6A R6¹ R6-1 R7B | 3.00 | 3.90

Open source

11. Zoning Resolution § 23-22
Zoning Resolution · NYC Department of City Planning
Where
R7A: 4.00 FAR
As of
September 10, 2026

R7A R7-1¹ R7-2¹ | 4.00 | 5.01

Open source

12. Zoning Resolution § 23-22
Zoning Resolution · NYC Department of City Planning
Where
R7D: 4.66 FAR
As of
September 10, 2026

R7D | 4.66 | 5.60

Open source

13. Zoning Resolution § 23-22
Zoning Resolution · NYC Department of City Planning
Where
R6A, qualifying affordable housing or qualifying senior housing: 3.90 FAR
As of
September 10, 2026

R6A R6¹ R6-1 R7B | 3.00 | 3.90

Open source

14. Zoning Resolution § 23-22
Zoning Resolution · NYC Department of City Planning
Where
R7A, qualifying affordable housing or qualifying senior housing: 5.01 FAR
As of
September 10, 2026

R7A R7-1¹ R7-2¹ | 4.00 | 5.01

Open source

15. Zoning Resolution § 23-22
Zoning Resolution · NYC Department of City Planning
Where
R7D, qualifying affordable housing or qualifying senior housing: 5.60 FAR
As of
September 10, 2026

R7D | 4.66 | 5.60

Open source

16. Zoning Resolution § 33-121
Zoning Resolution · NYC Department of City Planning
Where
C1-4; C1-4 mapped within R6A or R7B Districts (suffixed variants included per ZR 11-25) — zoning lot containing only community facility use (Column B); a zoning lot with both commercial and community facility uses: 3.00 total (Column C): 3.00 FAR
As of
September 10, 2026

R6A R7B | 2.00 | 3.00 | 3.00

Open source

17. Zoning Resolution § 33-121
Zoning Resolution · NYC Department of City Planning
Where
C1-4; C1-4 mapped within R7D District (suffixed variants included per ZR 11-25) — zoning lot containing only community facility use (Column B); a zoning lot with both commercial and community facility uses: 4.66 total (Column C): 4.66 FAR
As of
September 10, 2026

R7D | 2.00 | 4.66 | 4.66

Open source

18. Zoning Resolution § 33-121
Zoning Resolution · NYC Department of City Planning
Where
C1-4; C1-4 mapped within R7A or R8B Districts (suffixed variants included per ZR 11-25) — zoning lot containing only community facility use (Column B); a zoning lot with both commercial and community facility uses: 4.00 total (Column C): 4.00 FAR
As of
September 10, 2026

R7A R8B | 2.00 | 4.00* | 4.00

Open source

19. Declared assumption: building efficiency
Declared assumption
Where
low 0.7, base 0.8, high 0.85
As of
September 23, 2026

Net home area as a share of residential floor area. Basis: 2025 HCR Design Guidelines, PDF p. 40, Sec. 3.4.1a 'Overall Building Efficiency', Table 3.4.1; 2025 HCR Design Guidelines, PDF p. 40, Sec. 3.4.1; Market & Financial Study: NYC Mandatory Inclusionary Housing (BAE Urban Economics, BJH Advisors, James Lima Planning + Development), PDF p. 68 (printed p. 64), Appendix C, Table C-1 'Developer Interview Summary'; Market & Financial Study: NYC Mandatory Inclusionary Housing, PDF p. 41 (printed p. 37), 'Zoning and Floor Area Ratio'; HPD Design Guidelines for New Construction 2026, PDF p. 28, 'Unit Area Calculation'. A declared assumption; no City agency publishes this ratio.

Open source

20. Declared assumption: average home size (net)
Declared assumption
Where
low 514, base 553, high 599 sq ft
As of
September 23, 2026

HPD target net areas by bedroom count, weighted by HPD's observed bedroom mix. Basis: HPD Design Guidelines for New Construction 2026, PDF p. 31, Sec. 4.4.1; HPD Design Guidelines for New Construction 2026, PDF p. 33, Sec. 4.5.1; HPD Design Guidelines for New Construction 2026, PDF p. 36, Sec. 4.6.1; HPD Design Guidelines for New Construction 2026, PDF p. 39, Sec. 4.7.1; HPD Design Guidelines for New Construction 2026, PDF p. 42, Sec. 4.8.1; HPD Design Guidelines for New Construction 2026, PDF p. 6, 'Applicability'; HPD Design Guidelines for New Construction, Version 2.02 (edition in force before 2026-10-01), PDF pp. 42-58 (e.g. p. 44 for 0-BR, p. 58 for 4-BR), Secs. 5.3-5.8 tables 'TARGET NET'; HPD ELLA Term Sheet (Extremely Low & Low-Income Affordability), PDF p. 5, 'Design and Construction Requirements'; Affordable Housing Production by Building (NYC Open Data hg8x-zxpr), fields studio_units, _1_br_units ... _6_br_units; filter reporting_construction_type='New Construction' AND all_counted_units >= total_units - 1.

Open source

21. Zoning Resolution § 23-52
Zoning Resolution · NYC Department of City Planning
Where
Dwelling unit factor 680

In the districts indicated, for buildings containing multiple dwelling residences, the maximum number of dwelling units permitted shall be determined by dividing the maximum residential floor area permitted on the zoning lot by the applicable dwelling unit factor. ... For all other types of multiple dwelling residences, the applicable dwelling unit factor shall be 680. Fractions equal to or greater than three-quarters resulting from this calculation shall be considered to be one dwelling unit.

Open source

22. Zoning districts (NYZD)
Dataset · NYC Department of City Planning
As of
August 17, 2026
Retrieved
September 25, 2026

Open source

23. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027
Document · NYC Department of City Planning
Where
PDF p. 64
Retrieved
September 23, 2026

Open source

24. FY2027 Register of Community Board Budget Requests (Adopted Budget), Manhattan Community Board 9 FY2027 Adopted
Document · NYC Office of Management and Budget
Where
Agency response
As of
June 30, 2026

Open source

25. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027
Document · NYC Department of City Planning
Where
PDF p. 82
Retrieved
September 23, 2026

Open source

26. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027
Document · NYC Department of City Planning
Where
PDF p. 56
Retrieved
September 23, 2026

Open source

27. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027
Document · NYC Department of City Planning
Where
PDF p. 69
Retrieved
September 23, 2026

Open source

28. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027
Document · NYC Department of City Planning
Where
PDF p. 70
Retrieved
September 23, 2026

Open source

29. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027
Document · NYC Department of City Planning
Where
PDF p. 83
Retrieved
September 23, 2026

Open source

30. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027
Document · NYC Department of City Planning
Where
PDF p. 67
Retrieved
September 23, 2026

Open source

31. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027
Document · NYC Department of City Planning
Where
PDF p. 84
Retrieved
September 23, 2026

Open source

32. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027
Document · NYC Department of City Planning
Where
PDF p. 63
Retrieved
September 23, 2026

Open source

33. FY2027 Statement of Community District Needs and Community Board Budget Requests, Manhattan Community Board 9 FY2027
Document · NYC Department of City Planning
Where
PDF p. 59
Retrieved
September 23, 2026

Open source

34. MTA Subway Stations
Dataset · Metropolitan Transportation Authority
As of
September 25, 2026
Retrieved
September 25, 2026

Open source

35. Digital City Map street centerlines
Dataset · NYC Department of City Planning
As of
December 1, 2025
Retrieved
September 25, 2026

Open source

36. New York City Charter Sec. 197-c (Uniform land use review procedure)
Document
Where
Sec. 197-c(a)(8) and (a)(10)

(8) Housing and urban renewal plans and projects pursuant to city, state and federal housing laws; ... (10) Sale, lease (other than the lease of office space), exchange, or other disposition of the real property of the city

Open source

37. NYC Charter Sec. 384 (Disposal of property of the city)
Document
Where
Sec. 384(a)

No real property of the city may be sold, leased, exchanged or otherwise disposed of except with the approval of the mayor and as may be provided by law unless such power is expressly vested by law in another agency.

Open source

38. CEQR Technical Manual, Chapter 2 (December 2025 edition)
Document
Where
PDF p. 1 (printed p. 2-1)

CEQR requires all city agencies to determine whether discretionary actions they directly approve, fund, or undertake may significantly and adversely affect the environment.

Open source

39. Zoning Resolution 11-15 (Environmental Requirements)
Document
Where
ZR 11-15(a); last amended 2012-03-28

Prior to issuing a building permit or temporary or final certificate of occupancy ... on a tax lot that has an (E) designation or an environmental restrictive declaration related to hazardous materials, noise or air quality, the Department of Buildings (DOB) shall be furnished with a notice issued by OER stating that OER does not object

Open source

40. HPD Design Guidelines for New Construction 2026
Document
Where
PDF p. 13, Secs. 1.1.1 and 1.1.4

1.1.1 Avoid excessive excavation. Particularly in areas with unknown subsurface conditions, and where rock or high-water tables are prevalent, proposed cellars may have to be reduced, relocated, or even eliminated.

Open source

41. Deed Restriction Database (NYC Open Data rfu7-paqe)
Document
Where
dataset description

A searchable electronic database of all real property upon which a deed restriction was imposed by the Department of Citywide Administrative Services, pursuant to Local Law 176 of 2016.

Open source

42. Handbook on the Alienation and Conversion of Municipal Parkland (NYS OPRHP, revised 2017-09-01)
Document
Where
PDF p. 3, 'Parkland Alienation'

In order to convey parkland away, or to use parkland for another purpose, a municipality must receive prior authorization from the State in the form of legislation enacted by the New York State Legislature and approved by the Governor.

Open source

43. City Owned and Leased Property (COLP), NYC Open Data fn4k-qyk2
Document
Where
dataset description (version 20260430)

City Owned and Leased Properties (COLP) is published by the Department of City Planning (DCP) as required by chapter 204 of the City Charter. It includes the location and current use of all City-owned and leased properties.

Open source

44. NY General City Law Sec. 35
Document
Where
GCL 35

For the purpose of preserving the integrity of such official map or plan no permit shall hereafter be issued for any building in the bed of any street or highway shown or laid out on such map or plan

Open source

45. NY General City Law Sec. 36
Document
Where
GCL 36

No permit for the erection of any building shall be issued unless a street or highway giving access to such proposed structure has been duly placed on the official map or plan

Open source

46. LPC - Applications page
Document
Where
page text

The Landmarks Preservation Commission (LPC) helps preserve the City's designated landmark properties by regulating changes made to these buildings and sites.

Open source

47. 2022 NYC Building Code, Appendix G (as amended by Local Law 77 of 2023)
Document
Where
PDF p. 1, Sec. G102.1

This appendix, in conjunction with the New York City Construction Codes, provides minimum requirements for development located, in whole or in part, in special flood hazard areas and shaded X-Zones within the jurisdiction of New York City

Open source

48. Zoning Resolution 61-21 (Restriction on Highest Projection of Building or Structure)
Document
Where
ZR 61-21; 61-11 designates JFK, LaGuardia and U.S. Naval Air Station (Floyd Bennett Field)

the highest projection of any building or other structure hereafter constructed ... shall not penetrate: (a) the approach surfaces, the transitional surfaces, the horizontal surface, or the conical surface, whichever is more restrictive, within the Airport Approach District of the flight obstruction area

Open source

49. HPD ELLA Term Sheet (updated 2020-03-10)
Document
Where
PDF p. 4

Projects funded with Federal funds require compliance with Section 3 new hires and Davis Bacon prevailing wages, as applicable.

Open source

50. CPC report C 260071 HAM (1727 Amsterdam Avenue)
Document
Where
PDF p. 8

while CHO increased the maximum floor area permitted on the project site, the project sponsor does not intend to take advantage of the additional floor area.

Open source

51. Commercial Overlay Districts (NYCO) 202607
Dataset · NYC Department of City Planning
As of
August 17, 2026
Retrieved
September 25, 2026

Open source