# 91 Atlantic Avenue, Brooklyn

Commercial · built c. 1860 · Block 274, Lot 14.

On Umarelli: https://umarelli.org/nyc/3002740014/91-atlantic-avenue

More construction in Brooklyn Heights: https://umarelli.org/nyc/brooklyn/brooklyn-heights.md

## Building permits

- Alteration, filed Sep 12, 2025, estimated cost $400K, described as “Interior renovation of existing building, 2nd floor conversion from commercial to single family residence. New stair and bulkhead to roof with occupied deck.”

## Property taxes

- Assessment: $367,200
- 2026–27 tax: $39,834
- Market value (city estimate): $816,000
- Taxable value: $367,200
- Assessed land: $157,950
- Assessed improvements: $209,250

## Zoning

R6: floor area ratio 1.50 built, 2.43 allowed by base zoning.

## Flood zone

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

## Landmarks

Part of Brooklyn Heights Historic District (Historic District). 7 Landmarks Preservation Commission permits are on file.

## In the news

[LPC To Review Rezoning Proposal For 89-91 Atlantic Avenue In Brooklyn Heights, Brooklyn](https://newyorkyimby.com/2026/05/lpc-to-review-rezoning-proposal-for-89-91-atlantic-avenue-in-brooklyn-heights-brooklyn.html), New York YIMBY, May 5, 2026.

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