321 West 55th Street, Manhattan
Co-op · 36 units · built c. 1912 · Block 1046, Lot 21.
Building permits
- Alteration, filed Jan 6, 2023, estimated cost $63K, described as “Interior renovation of existing apt. #92. Removal of non-bearing wall between units #92 and #91. New non-bearing partitions. New bathroom and laundry. Replacement of existing a/c system. New interior finishes. No change in use, occupancy…”
- Alteration, filed Jan 6, 2023, estimated cost $23K, described as “Replacement and relocation of plumbing fixtures. New plumbing for laundry closet. No change in use, occupancy or egress.”
- Alteration, filed Sep 26, 2022, estimated cost $13K, described as “Relocation and replacement of existing plumbing fixtures. Creation of additional bathroom. New laundry station. No change to use, occupancy or egress.”
- Alteration, filed Sep 26, 2022, estimated cost $32K, described as “Interior renovation of existing apartment #32. Relocation of non-bearing partitions. Creating additional bathroom. New interior finishes. No change to use, occupancy or egress.”
- Alteration, filed Jun 15, 2022, estimated cost $7K, described as “Installation of temporary supported scaffold as per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed Jun 14, 2022, estimated cost $3K, described as “Installation of temporarily material hoist as per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed May 27, 2022, estimated cost $370K, described as “Replacement of terracotta with cast stone, restoration and replacement of window lintels in-kind, and replacement of sealant in-kind, on south & north facade of 321 west 55TH street. Brick masonry repairs on the west facade. Lintel repair,…”
- Alteration, filed Aug 30, 2021, estimated cost $7K, described as “Installation of temporary sidewalk shed per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed Aug 16, 2021, estimated cost $215K, described as “Replacement (1) new combination gas/oil burner on (1) new low pressure boiler. Change grade of fuel oil from #4 oil to #2 oil. No change in means of egress use group or occupancy.”
- Alteration, filed Aug 16, 2021, estimated cost $50K, described as “New low pressure gas service, new low pressure gas line, new gas meter new gas train. Reconnect existing house service. No change in means of egress use group or occupancy”
- Alteration, filed Aug 16, 2021, estimated cost $50K, described as “New 10 gage 304 stainless steel liner. No change in means of egress, use group or occupancy.”
- Alteration, filed May 10, 2021, estimated cost $25K, described as “Herewith filing Alteration Type II for the renovation of an existing Bathroom in Apt. 53 on the 5th floor. No change to use, occupancy or egress is proposed.”
- Alteration, filed May 10, 2021, estimated cost $9K, described as “Herewith filing for the Plumbing work related to the renovation of the Bathroom in Apt. 53. No change to use, occupancy or egress is proposed.”
Property taxes
- Assessment
- $3,719,250
- 2026–27 tax
- $360,565
- Market value (city estimate)
- $8,265,000
- Taxable value
- $3,321,052
- Assessed land
- $391,950
- Assessed improvements
- $3,327,300
Tax breaks
- Co-op and condo abatement, with no end date, a $53,509 credit this tax year.
Zoning
R8: floor area ratio 7.66 built, above the 6.02 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jun 15, 2026: $1,100,000
- Jun 15, 2026: $63,582
- Mar 12, 2026: $48,101
- Jan 21, 2026: $715,000
- Sep 12, 2023: $1,145,000
- Aug 8, 2023: $750,000
- Oct 17, 2022: $1,144,133
- Apr 25, 2022: $900,000
- May 11, 2021: $745,000
- Feb 25, 2021: $737,500
The 10 most recent of 16 open-market sales since 2016, from the Department of Finance’s sales files.