# 438 12th Street, Brooklyn

Condominium · 34 units · built c. 1920 · Block 1098, Lot 7509.

On Umarelli: https://umarelli.org/nyc/3010987509/438-12-street

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

Every lot on block 1098: https://umarelli.org/nyc/brooklyn/1098.md

## Building permits

- Alteration, filed Feb 9, 2026, estimated cost $154K, described as “Interior renovation to existing three-bedroom apartment unit 2C. Selective removal and installation of non-load bearing partitions. New finishes throughout. Minor pl to be filed under sep job#. No change to egress occupancy under this…”
- Alteration, filed Dec 11, 2025, estimated cost $62K, described as “General construction for a roofing waterproof membrane and insulation to be replaced.”
- Alteration, filed Jun 3, 2024, estimated cost $36K, described as “Kitchen and bathroom renovation of unit 3B. Minor partition work.”
- Alteration, filed Apr 5, 2024, estimated cost $118K, described as “Renovate apartment pha. Install new plumbing fixtures in bathrooms and kitchen. General construction related to apartment renovation. No change to use, egress or occupancy.”
- Alteration, filed Jul 28, 2023, estimated cost $25K, described as “Limited Facade repairs as per plans filed. No change in occupancy, use or egress.”
- Alteration, filed Jun 7, 2022, estimated cost $96K, described as “Interior work tp complete job no 320372734 / quality housing ZR 28-00”
- Alteration, filed May 26, 2021, estimated cost $68K, described as “Hereby filing for the interior renovation of kitchen in existing apartment 5D located on the fifth floor. No change to use, occupancy or egress.”
- Alteration, filed May 25, 2021, estimated cost $8K, described as “Hereby filing for the relocation and replacment of kitchen fixtures. No change to use occupancy or egress.”

## Property taxes

- Assessment: $4,168,353
- 2026–27 tax: $518,502
- Market value (city estimate): $9,263,000
- Taxable value: $4,166,123
- Assessed land: $176,845
- Assessed improvements: $3,991,508
- Condo units with their own tax lots: 34

## Zoning

R6B: floor area ratio 2.20 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Aug 10, 2026: $2,580,000, Apt 6A
- Jul 17, 2026: $270,000, Apt 4B, sold with other lots
- May 29, 2026: $3,350,000, Unit PH-B
- Oct 9, 2025: $2,500,000, Apt 5B
- Sep 9, 2025: $1,935,000, Apt 2A
- Nov 13, 2023: $2,200,000, Apt 2D
- Nov 9, 2023: $2,400,000, Apt 5C
- Sep 7, 2023: $2,400,000, Apt 4C
- Aug 9, 2021: $2,095,000, Apt 3B
- Feb 5, 2021: $1,950,000, Apt 3D

The 10 most recent of 15 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 Extension (Historic District). 23 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