# 421 Maple Street, Brooklyn

Condominium · 10 units · built 2020 · Block 4792, Lot 7505.

On Umarelli: https://umarelli.org/nyc/3047927505/421-maple-street

More construction in Flatbush: https://umarelli.org/nyc/brooklyn/flatbush.md

Every lot on block 4792: https://umarelli.org/nyc/brooklyn/4792.md

## Building permits

- Alteration, filed Feb 25, 2020, estimated cost $5K, described as “Installation of Sidewalk Shed as Per Plan”
- Alteration, filed Oct 17, 2019, estimated cost $5K, described as “Installation of construction fence as per plan”
- Alteration, filed Apr 1, 2019, estimated cost $4K, described as “Application file to propose 8' temporary wood construction fence”

## Property taxes

- Assessment: $1,110,152
- 2026–27 tax: $67,743
- Market value (city estimate): $2,466,999
- Taxable value: $660,122
- Assessed land: $199,351
- Assessed improvements: $910,801
- Condo units with their own tax lots: 10

## Tax breaks

- Co-op and condo abatement, with no end date, a $14,370 credit this tax year.

## Zoning

R6: floor area ratio 2.20 built, 2.43 allowed by base zoning.

## Recent sales

- Sep 3, 2025: $569,000, Apt 201
- Aug 5, 2024: $860,000, Apt 101
- Feb 16, 2022: $550,000, Apt 401
- Jan 28, 2022: $565,000, Apt 301
- Dec 20, 2021: $930,000, Apt 102
- Dec 9, 2021: $590,000, Apt 303
- Nov 18, 2021: $999,000, Apt 402
- Nov 18, 2021: $570,000, Apt 403
- Nov 17, 2021: $718,000, Apt 101
- Nov 11, 2021: $530,000, Apt 201

The 10 most recent of 12 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