# 647 Baltic Street, Brooklyn

Single family · built 2024 · Block 937, Lot 57.

On Umarelli: https://umarelli.org/nyc/3009370057/647-baltic-street

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

## Building permits

- New Building — Residential, filed Apr 22, 2022, 1 unit, 5 stories, described as “Propose new 5-story plus cellar single family residential building as per plan. Obtain new c of o.”
- Alteration, filed Mar 16, 2023, described as “Installation of temporary pipe scaffold as per plans in conjunction with NB job# B00723518. No change in use, egress or occupancy.”
- Alteration, filed Jan 30, 2023, estimated cost $1K, described as “Installation of temporary heavy duty sidewalk shed as per plans. No change in use, egress or occupancy. Sidewalk shed shall comply with chapter #33 of the NYC building code. Live load 300PSF.”
- Alteration, filed Oct 20, 2022, estimated cost $1K, described as “Propose to install temporary construction fence at sidewalk total 189 LF as per drawings in connection with GC #B00723518-I1”

## Property taxes

- Assessment: $166,740
- 2026–27 tax: $33,086
- Market value (city estimate): $2,779,000
- Taxable value: $166,740
- Assessed land: $31,320
- Assessed improvements: $135,420

## Zoning

R6B: floor area ratio 2.22 built, above the 2.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Aug 15, 2025: $5,650,000
- Nov 30, 2021: $1,330,000

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

## Flood zone

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

## In the news

[647 Baltic Street Nears Completion in Park Slope, Brooklyn](https://newyorkyimby.com/2023/10/647-baltic-street-nears-completion-in-park-slope-brooklyn.html), New York YIMBY, Oct 1, 2023.

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