# 21 Polhemus Place, Brooklyn

Apartment building · 7 units · built c. 1898 · Block 1070, Lot 5.

On Umarelli: https://umarelli.org/nyc/3010700005/21-polhemus-place

More construction in Park Slope: https://umarelli.org/nyc/brooklyn/park-slope.md

Every lot on block 1070: https://umarelli.org/nyc/brooklyn/1070.md

## Building permits

- Alteration, filed Jul 20, 2021, estimated cost $619K, described as “Renovate (8) apt units & common hallway from cellar to roof, include removing and installing new interior non-load bearing partitions,, mechanical, lighting and finish work. No change to use, egress or occupancy. Pl filed seperately”
- Alteration, filed Jul 20, 2021, estimated cost $106K, described as “File PL workt through the building in conjunction with OT job # B00542929”

## Property taxes

- Assessment: $1,130,850
- 2026–27 tax: $35,783
- Market value (city estimate): $2,513,000
- Taxable value: $287,668
- Assessed land: $8,100
- Assessed improvements: $1,122,750

## Zoning

R6B: floor area ratio 2.03 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Dec 1, 2020: $2,300,000, 3,212 sq ft ($716 per sq ft)

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

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard.

## Landmarks

Part of Park Slope Historic District (Historic District). 3 Landmarks Preservation Commission permits are on file.

From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology