177 9th Avenue, Manhattan
Condominium · 54 units · built 2008 · Block 718, Lot 7501.
Building permits
- Alteration, filed Jul 7, 2026, estimated cost $1.1M, described as “Curtain wall snap cover and masonry facade repairs as per plans. No change to use, occupancy or egress.”
- Alteration, filed Jun 1, 2026, estimated cost $75K, described as “Temporary pipe scaffold as per drawings. Scaffold shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application. Scaffold shall be installed in phases.”
- Alteration, filed May 27, 2026, estimated cost $213K, described as “Combination of apartments 2E & 2F as per plans.”
- Alteration, filed May 14, 2026, estimated cost $24K, described as “Installation of heavy duty sidewalk shed as per plans. Shed shall comply with chapter #33 of the 2022 code. No change in use, egress or occupancy under this application.”
- Alteration, filed May 4, 2026, described as “Suspended Scaffold for Facade Restoration as Shown on Plans”
- Alteration, filed Apr 13, 2026, estimated cost $164K, described as “Reno of apt ph-f replace wood flooring - 6TH fl refurbish kitchen, study, stair, 7TH fl reduce 2ND bedroom size to create walk-in-closet, refurbish laundry, primary bath add sound insulating windows @ primary bedroom inside existing windows”
- Alteration, filed Dec 15, 2025, estimated cost $2.1M, described as “Keller library - removal and installation of interior partitions to reconfigure student spaces. No change in use, egress, or occupancy.”
- Alteration, filed Jul 8, 2025, estimated cost $231K, described as “Interior renovation of existing Apt. 4A, as per plans. No change to Use, Occupancy, or Egress.”
- Alteration, filed Sep 27, 2024, estimated cost $190K, described as “Interior renovation of an existing 4th floor apartment #4J. No change in use, egress or occupancy.”
- Alteration, filed Jul 29, 2024, estimated cost $20K, described as “Upgrade to hot water heating system in building per plans.”
- Alteration, filed Jul 9, 2024, estimated cost $101K, described as “Interior renovation of Apt. 2C. Remove and install interior partitions, doors and finishes. NO CHANGE TO USE EGRESS, OR OCCUPANCY.”
- Alteration, filed May 18, 2022, estimated cost $8K, described as “Install plumbing fixtures in first floor space, GC filed under M00722426 and MS under M00722461.”
- Alteration, filed May 18, 2022, estimated cost $113K, described as “General construction for 1st floor space. PL filed under M00722443 and MS under M00722461”
- Alteration, filed May 18, 2022, estimated cost $20K, described as “New ductwork modification.”
- Alteration, filed Nov 30, 2020, estimated cost $100K, described as “Herewith filing for the mechanical work to be done in penthouse c on the 6TH & 7TH floors. This application is being filed in conjunction with alteration type ii application # 140952663”
- Alteration, filed Nov 30, 2020, estimated cost $34K, described as “Herewith filing for the plumbing & sprinkler work to be done in penthouse c on the 6TH & 7TH floors. This application is being filed in conjunction with alteration type ii application #”
- Alteration, filed Feb 29, 2020, estimated cost $9K, described as “Minor plumbing interior work limited to kitchen and bathrooms with general finishes throughout. Replacement of plumbing fixtures and relocate one kitchen sink. Replacement of existing kitchen cooktop and oven with new. No change in use,…”
- Alteration, filed Nov 8, 2019, estimated cost $3K, described as “Interior renovation of a restaurant with sprinkler work as per plan. This application conjunction with JOB#123883299 . No change in use, egress or occupancy.”
Property taxes
- Assessment
- $25,430,610
- 2026–27 tax
- $2,516,898
- Market value (city estimate)
- $56,512,466
- Taxable value
- $22,153,863
- Assessed land
- $5,333,400
- Assessed improvements
- $20,097,210
- Condo units with their own tax lots
- 4
Tax breaks
- Nonprofit exemption (library), with no end date, about $293,775 a year below the full tax.
Zoning
R7B: floor area ratio 6.14 built, above the 3.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Aug 31, 2026: $3,600,000
- Jul 8, 2026: $4,100,000
- Apr 2, 2026: $4,500,000
- Dec 4, 2025: $3,250,000, Unit RETAI
- Dec 3, 2025: $1,950,000
- Sep 8, 2025: $5,600,000
- Jun 5, 2025: $1,480,000
- Jul 8, 2024: $1,579,000
- Dec 15, 2023: $5,700,000
- Dec 12, 2023: $6,800,000
The 10 most recent of 39 open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Chelsea Historic District (Historic District). 18 Landmarks Preservation Commission permits are on file.