18 Mercer Street, Manhattan

Co-op · 7 units · built c. 1861 · Block 231, Lot 19.

Building permits

Property taxes

Assessment
$2,773,350
2026–27 tax
$86,593
Market value (city estimate)
$6,163,000
Taxable value
$804,432
Assessed land
$715,500
Assessed improvements
$2,057,850

Tax breaks

Zoning

M1-5/R9X: floor area ratio 4.46 built, 9.00 allowed by base zoning.

Flood zone

Current FEMA flood map: zone X, minimal flood hazard. FEMA’s preliminary map: zone X, moderate risk: a 0.2% chance of flooding each year.

Recent sales

Open-market sales since 2016, from the Department of Finance’s sales files.

Landmarks

Part of SoHo-Cast Iron Historic District (Historic District). 18 Landmarks Preservation Commission permits are on file.

Board and land use applications

More construction in SoHo

Every lot on block 231

Umarelli: construction in New York City and Jersey City