340 West 23rd Street, Manhattan
Single family · built c. 1900 · Block 746, Lot 64.
Building permits
- Alteration, filed Feb 21, 2023, estimated cost $5K, described as “Installation of a heavy duty sidewalk shed & pipe scaffold as per plans during general construction work. No change in use, egress or occupancy. Sidewalk shed & pipe scaffold to comply with chapter 33 of NYC building code of 2022.”
- Alteration, filed Jul 25, 2022, estimated cost $1K, described as “Alteration to existing plumbing and fire sprinkler system in conjunction with GC application M00754884.”
- Alteration, filed Jul 6, 2022, estimated cost $35K, described as “Interior removal of partitions, cleaning of job site, and miscellaneous framing.”
- Alteration, filed Jun 10, 2022, estimated cost $650K, described as “Conversion of existing mixed use building to a single family house including vertical addition.”
Property taxes
- Assessment
- $426,420
- 2026–27 tax
- $84,615
- Market value (city estimate)
- $7,107,000
- Taxable value
- $426,420
- Assessed land
- $100,200
- Assessed improvements
- $326,220
Zoning
C1-6A: floor area ratio 3.11 built, 4.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Mar 6, 2020: $7,550,000, 5,603 sq ft ($1,347 per sq ft)
Open-market sales since 2016, from the Department of Finance’s sales files.