43 Mercer Street, Manhattan
Three-family with store · built c. 1868 · Block 474, Lot 19.
Building permits
- Major Renovation — Conversion, filed Dec 22, 2025, estimated cost $10.8M, 2 units added, 7 stories, described as “Merge 41 and 43 Mercer Street on the same zoning lot, enlarge the merged structure and to convert to residential use on upper floors. Retail on 1st and cellar with accessory storage.”
- Alteration, filed Aug 21, 2025, described as “Installation of temporary system scaffold as per plans. No change in use, egress or occupancy.”
- Alteration, filed May 29, 2025, described as “Installation of temporary sidewalk shed as per plans. No change in use, egress or occupancy.”
- Alteration, filed Mar 20, 2025, estimated cost $120K, described as “Remove portion of 1st floor slab and excavate cellar down to original slab or compacted earth-floor. No change to use, egress or occupancy under this application.”
- Alteration, filed May 16, 2023, estimated cost $1K, described as “Non-illuminated non-advertising accessory awning - (flower logo). No change of use, egress or occupancy.”
- Alteration, filed Oct 24, 2022, estimated cost $13K, described as “Relocate sprinkler heads at 1st floor as per plans.”
- Alteration, filed Aug 23, 2022, estimated cost $75K, described as “Mechanical modifications throughout as per plans.”
- Alteration, filed Jun 10, 2022, estimated cost $60K, described as “Apt combination on 3rd and 4th floors, install a new stair in a new opening between the floors, general renovation. Reverse swing of the existing bdg entrancedoor , replacing one window with a door at the rear of the 4th floor and adding 4…”
- Alteration, filed May 26, 2022, estimated cost $220K, described as “Interior renovation to 1st floor and cellar as per plans. No change in use egress or occupancy.”
- Alteration, filed May 26, 2022, estimated cost $12K, described as “Modification to plumbing fixtures per plans. This application in conjunction with application #'s M00712443 & M00712234. No change in use egress or occupancy.”
Property taxes
- Assessment
- $4,621,500
- 2026–27 tax
- $337,090
- Market value (city estimate)
- $10,270,000
- Taxable value
- $2,709,948
- Assessed land
- $405,000
- Assessed improvements
- $4,216,500
Zoning
M1-5/R7X: floor area ratio 2.66 built, 5.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Dec 15, 2021: $9,500,000
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of SoHo-Cast Iron Historic District (Historic District). 16 Landmarks Preservation Commission permits are on file.
Board and land use applications
- SoHo/NoHo (City Planning 2018M0375): Zoning map change, Zoning text change, Completed, decided Aug 25, 2022. SoHo/NoHo Neighborhood Plan seeks to strengthen SoHo and NoHo as mixed-use neighborhoods and promote equity. The proposal will expand housing opportunities for New Yorkers, reduce burdens for residents and businesses, and support continued…