# 665 Carroll Street, Brooklyn

Two-family · built c. 1920 · Block 959, Lot 59.

On Umarelli: https://umarelli.org/nyc/3009590059/665-carroll-street

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

Every lot on block 959: https://umarelli.org/nyc/brooklyn/959.md

## Building permits

- Alteration, filed Mar 9, 2026, described as “Installation of temporary sidewalk shed as per plans. No change in use, egress or occupancy.”
- Alteration, filed Mar 6, 2026, described as “Installation of temporary pipe scaffold as per plans. No change in use, egress or occupancy.”
- Alteration, filed Mar 5, 2026, described as “Installation of temporary engineered enclosure system as per plans. No change in use, egress or occupancy”
- Alteration, filed Nov 5, 2025, estimated cost $1K, described as “Installation of temporary heavy duty sidewalk shed and pipe scaffold as per plans. No change in use, egress or occupancy.sidewalk shed shall comply with chapter #33 of 2022 the NYC building code.live load 300PSF.”
- Alteration, filed Nov 5, 2025, estimated cost $1K, described as “Filing to protect neighbor during minor facade repair work. This system is a site specific engineered enclosure system subject to the requirements of bc 3309.17. No change in use, egress, or occupancy”
- Alteration, filed Aug 20, 2025, estimated cost $62K, described as “Installation of solar PV system. No change to use, egress, or occupancy.”
- Alteration, filed Nov 13, 2023, estimated cost $30K, described as “This Alteration is being filed for the SOE work at the subject premises. There are no change in use, egress or occupancy under this application.”
- Alteration, filed Nov 13, 2023, estimated cost $250K, described as “This Alteration is being filed for the structural work at the subject premises as per plans summitted herewith. There are no change in use, egress or occupancy.”
- Alteration, filed Nov 13, 2023, estimated cost $40K, described as “This Alteration is being filed for the Foundation work at the subject premises as per plans submitted herewith. There are no change in use, egress or occupancy under this application.”
- Alteration, filed Nov 13, 2023, estimated cost $200K, described as “This Alteration is being filed for the plumbing work at the subject premises as per plans submitted herewith. There are no change in use, egress or occupancy.”
- Alteration, filed Nov 13, 2023, estimated cost $50K, described as “This Alteration is being filed for the installation of new Sprinkler system at the subject premises as per plans submitted herewith. There are no change of use, egress or occupancy under this application.”
- Alteration, filed Nov 13, 2023, estimated cost $150K, described as “This Alteration application is being filed for the mechanical work at the subject premises. There are no change in use, egress or occupancy.”
- Alteration, filed Nov 10, 2023, estimated cost $600K, described as “This Alteration CO application is being filed for the interior renovation of the building to convert from 4 family to 2 family. To obtain an amended C of O.”
- Alteration, filed May 4, 2023, estimated cost $49K, described as “This Alteration application is being filed for the exterior renovation of existing 4 family home, work to include replacement/repair of existing cornice. NO change in use, egress or occupancy.”
- Alteration, filed Apr 28, 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 2022 the NYC building code. Live load 300PSF.”
- Alteration, filed Apr 28, 2023, estimated cost $1K, described as “Proposed installation of temporary pipe scaffold as per plans. Work shall comply with chapter #33 of 2022 the NYC building code. No change in use, occupancy, or egress under this application.”

## Property taxes

- Assessment: $63,000
- 2026–27 tax: $12,501
- Market value (city estimate): $1,050,000
- Taxable value: $63,000
- Assessed land: $51,060
- Assessed improvements: $11,940

## Zoning

R6B: floor area ratio 2.00 built, 2.00 allowed by base zoning.

## Recent sales

- Dec 12, 2022: $3,700,000

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