320 West 84th Street, Manhattan
Co-op · 36 units · built c. 1906 · Block 1245, Lot 86.
Building permits
- Alteration, filed Nov 15, 2024, estimated cost $97K, described as “Hereby filing for the interior renovation to basement apartment. Work to include modifications to interior non-bearing partitions as indicated on plans filed herewith and new interior finishes. No change to use occupancy or egress”
- Alteration, filed Jul 17, 2024, estimated cost $5K, described as “Installation of 300 psf sidewalk shed as per plans. All equipment shall comply with chapter #33 of the 2022 code. No change in use, egress or occupancy under this application.”
- Alteration, filed Jun 13, 2024, described as “Installation of suspended scaffold for facade work or inspection”
- Alteration, filed May 21, 2024, estimated cost $190K, described as “Facade repairs and minor roof work as per plans filed herewith. No change to use, egress or occupancy.”
- Alteration, filed Nov 21, 2019, estimated cost $14K, described as “Removal of 11 sf of interior bearing wall with structural steel installed above the new opening”
- Alteration, filed Nov 20, 2019, estimated cost $12K, described as “Removal of existing kitchen including sink and hot water heater and capping of gas range. Also includes introduction of washing machine and electric dryer and new electric hot water heater. No change to egress use or occupancy”
Property taxes
- Assessment
- $2,345,850
- 2026–27 tax
- $248,283
- Market value (city estimate)
- $5,213,000
- Taxable value
- $2,267,200
- Assessed land
- $406,800
- Assessed improvements
- $1,939,050
Tax breaks
- Co-op and condo abatement, with no end date, a $33,759 credit this tax year.
Zoning
R8B: floor area ratio 4.88 built, above the 4.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Sep 2, 2026: $640,000
- Oct 8, 2025: $47,950
- Aug 28, 2025: $447,500
- Jul 23, 2025: $54,000
- May 28, 2025: $630,000
- Jun 29, 2022: $650,000
- May 23, 2022: $355,000
- Apr 4, 2022: $390,000
- Oct 6, 2021: $1,280,000
- Oct 6, 2021: $407,500
The 10 most recent of 20 open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Riverside-West End Historic District Extension I (Historic District). 15 Landmarks Preservation Commission permits are on file.
Board and land use applications
- Variance or special permit (Board of Standards and Appeals 223-02-BZ): Variance or special permit, Granted, filed Aug 6, 2002, decided Apr 8, 2003. Special Permit (§73-621) to permit in an R8B zoning district, legalizing an existing rental apartment in the cellar of a six-story building, which increases the degree of non-compliance with respect to floor area ratio and open space…
- Appeal (Board of Standards and Appeals 224-02-A): Appeal, Granted, filed Aug 6, 2002, decided Apr 8, 2003. Multiple Dwelling Law §310 Proposed legalization of existing rental apartment in cellar which was converted from prior medical offices. Located in an R8B zoning district.