129 West 20th Street, Manhattan
Condominium · 15 units · built c. 1905 · Block 796, Lot 7503.
Building permits
- Alteration, filed Mar 25, 2026, estimated cost $3K, described as “Install an internally illuminated accessory business wall sign on raceway "jet set modern pilates "”
- Alteration, filed Sep 3, 2025, estimated cost $128K, described as “Interior renovation of the existing commercial space: Installation of non-load bearing partitions, ceiling and ADA toilet. Cosmetic finishes for the floor and walls. No change in egress, occupancy, or use under this application.”
- Alteration, filed Jul 15, 2025, estimated cost $7K, described as “Minor layout change of apartment phab on the 6TH floor level. No change in use, egress and/or occupancy”
- Alteration, filed Jun 12, 2025, estimated cost $40K, described as “Install new chimney liner and extension as per plans. No change in use, occupancy or egress.”
- Alteration, filed Apr 12, 2024, estimated cost $50K, described as “Propose interior renovations of apartment 3A. Removal and installation of non load bearing partitions and related finishes all as per plans herewith filed. No change in use, egress or occupancy filed under this application.”
- Alteration, filed Feb 7, 2024, estimated cost $25K, described as “In-kind replacement of an existing cooling tower on the roof.”
- Alteration, filed Nov 2, 2021, estimated cost $1K, described as “Proposed installation of temporary pipe scaffold as per plans. Work shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Aug 31, 2021, estimated cost $50K, described as “Facade repairs, miscellaneous brick replacement and replacement camelback coping stones as per plans filed. No change in use, egress or occupancy.”
- Alteration, filed Jul 22, 2021, estimated cost $5K, described as “Installation of 300 psf sidewalk shed as per plans. Sidewalk shed shall comply with chapter #33 of the 2014 code. No change inuse, egress or occupancy under this application.”
- Alteration, filed May 6, 2021, estimated cost $1K, described as “Dryer exhaust duct work. Related application numbers, M00512622-I1, M00512640-I1”
- Alteration, filed May 5, 2021, estimated cost $15K, described as “Interior renovation related to Corridor work for Apt 6C. Related application numbers, M00512623-I1, M00512640-I1”
- Alteration, filed May 5, 2021, estimated cost $2K, described as “Relocate existing plumbing fixtures for Washer /dryer. Two (2) Sprinkler heads in common hallway are to be capped/removed. Related application numbers M00512623-I1, M00512622-I1.”
- Alteration, filed Mar 2, 2021, estimated cost $67K, described as “Renovation of phab including minor layout modification on the 6TH floor, mezzanine and roof/terrace. No change in use, egress and/or occupancy”
- Alteration, filed Jan 21, 2021, estimated cost $121K, described as “Interior renovation of apartment phab including minor layout reconfiguration of 6TH floor, mezzanine and roof/terrace. New lighting. No change in use, egress and/or occupancy”
- Alteration, filed Apr 7, 2020, estimated cost $18K, described as “Modification of 8 plumbing fixtures on floor 002 of existing apartment. Plumbing work. There is to be no change of use, occupancy, or egress.”
- Alteration, filed Sep 18, 2019, estimated cost $18K, described as “Removal of plumbing fixtures at 1ST floor in conjunction with interior renovation work, JOB#123809487.”
Property taxes
- Assessment
- $5,931,901
- 2026–27 tax
- $595,135
- Market value (city estimate)
- $13,182,002
- Taxable value
- $5,570,578
- Assessed land
- $608,400
- Assessed improvements
- $5,323,501
- Condo units with their own tax lots
- 16
Tax breaks
- Co-op and condo abatement, with no end date, a $82,915 credit this tax year.
Zoning
C6-3A: floor area ratio 4.78 built, 7.52 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Jul 1, 2026: $1,410,000, Apt 5C
- Apr 30, 2026: $3,850,000, Apt 4B
- Aug 8, 2022: $2,395,000, Apt 4A
- Mar 18, 2022: $2,300,000, Apt 3A
- Jan 15, 2021: $1,999,999, Apt 3A
- Nov 14, 2019: $5,450,000, Unit PHA, sold with other lots
- Oct 10, 2019: $4,980,000, Unit COMM
Open-market sales since 2016, from the Department of Finance’s sales files.
Board and land use applications
- 54 W21ST ST, 129 W20TH ST (City Planning P1998M0073): Completed, decided Dec 12, 1997. CERTIFICATION FOR CONVERSION OF FLOORS 2-6 TO RESIDENTIAL*USE & PRESERVATION OF 1ST FLR AT 129 W20TH ST & PRESERVATION*OF THE 10TH & 11TH FLRS AT 54 W21ST ST
- 129-133 W20TH ST IN SOUTHEAST CHELSEA DIST (City Planning P1985M0495): Completed, decided Jun 25, 1987. CHAIRMAN'S CERT TO PERMIT CONVERSION OF FLRS 4-6 IN 6 STORY*BLDG FOR RESIDENTIAL USES IN M1-5M ZONE