# 227 20th Street, Brooklyn

Two-family · built c. 1910 · Block 637, Lot 55.

On Umarelli: https://umarelli.org/nyc/3006370055/227-20-street

More construction in Sunset Park: https://umarelli.org/nyc/brooklyn/sunset-park.md

Every lot on block 637: https://umarelli.org/nyc/brooklyn/637.md

## Building permits

- Alteration, filed May 27, 2026, estimated cost $180K, described as “Interior renovation of a 2-story townhouse with basement. New HVAC, electrical & new partitions.no change to use, egress or occupancy”

## Property taxes

- Assessment: $125,280
- 2026–27 tax: $3,105
- Market value (city estimate): $2,088,000
- Taxable value: $15,647
- Assessed land: $18,120
- Assessed improvements: $107,160

## Zoning

R6B (part of the lot is R6A): floor area ratio 1.05 built, 2.00 allowed by base zoning.

## Recent sales

- Feb 23, 2022: $1,250,000

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

## Flood zone

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

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