# 450 Grand Avenue, Brooklyn

Condominium · 39 units · built 2022 · Block 1981, Lot 7501.

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On Umarelli: https://umarelli.org/nyc/3019817501/450-grand-avenue

More construction in Clinton Hill: https://umarelli.org/nyc/brooklyn/clinton-hill.md

## Building permits

- New Building — Multi-Family, filed Sep 15, 2021, estimated cost $2.9M, 39 units, 7 stories, described as “Proposed 7 story NB”
- Alteration, filed Nov 21, 2025, estimated cost $28K, described as “Renovation of an existing store at the 1st floor. No change in use, egress or occupancy under this application.”
- Alteration, filed Nov 3, 2025, estimated cost $25K, described as “To file MS mechanical work in conjunction with DOB Now Build application job#B01312029. No change in use, egress or occupancy under this application.”
- Alteration, filed Nov 3, 2025, estimated cost $14K, described as “Renovation of an existing store at the 1st floor. No change in use, egress or occupancy under this application.”
- Alteration, filed Nov 3, 2025, estimated cost $60K, described as “To file PL plumbing work in conjunction with DOB Now Application job#B01312029. Replace 2 existing plumbing fixtures at existing rough-in. Propose 9 new plumbing fixtures. No change in use, egress or occupancy under this application.”
- Alteration, filed Aug 9, 2025, estimated cost $25K, described as “Renovation of commercial retail space (718 dance collective) on 1ST floor. Installation of non-bearing partitions, new lighting finishes and millwork. No exterior eork. No change to use, egress or occupancy.”
- Alteration, filed Oct 11, 2022, estimated cost $6K, described as “Installation of temporary needle beam as per plans. No change in use, egress or occupancy.”
- Alteration, filed Aug 31, 2022, estimated cost $9K, described as “Proposed installation of temporary pipe scaffold as per plans. Work shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application. For NB job #B00580210-I1”
- Alteration, filed Jun 14, 2022, estimated cost $1K, described as “Temporary standpipe application for installation of temp ddry standpipe alarm systems during construction as per drawings, in conjunction with NB application B00580210-I1. No change in use egress or occupancy.”
- Alteration, filed Jun 3, 2022, estimated cost $1K, described as “Foundation for the proposed excavation and foundation work in conjunction with new building application B00580210. No change in use, egress, or occupancy under this application”
- Alteration, filed Jun 3, 2022, estimated cost $1K, described as “Support of excavation for the proposed excavation and foundation work in conjunction with new building application B00580210. No change in use, egress, or occupancy under this application”
- Alteration, filed Mar 31, 2022, estimated cost $2K, described as “Proposed construction fence in conjunction with NB application B00580210. No change in use occupancy egress.”
- Alteration, filed Oct 27, 2021, estimated cost $160, described as “Proposed construction fence. No change to use, egress or occupancy under this application.”
- Alteration, filed Oct 6, 2020, estimated cost $7K, described as “Filling paa for change of heavy duty sidewalk shed to 600 psi for storage on putnam ave and 300 psi on grand ave”

## Property taxes

- Assessment: $5,523,638
- 2026–27 tax: $533,028
- Market value (city estimate): $12,274,760
- Taxable value: $4,741,452
- Assessed land: $405,006
- Assessed improvements: $5,118,632
- Condo units with their own tax lots: 64

## Tax breaks

- Co-op and condo abatement, with no end date, a $40,731 credit this tax year.

## Zoning

R7A: floor area ratio 4.72 built, above the 4.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Sep 28, 2026: $1,675,000, Apt ST-12, sold with other lots
- Sep 17, 2026: $1,465,000, Apt ST-18, sold with other lots
- Jul 27, 2026: $1,360,000, Apt 5G
- Jun 26, 2026: $1,300,000, Apt 4A
- Feb 24, 2026: $1,570,000, Apt ST-17, sold with other lots
- Feb 24, 2026: $1,460,000, Apt 5C
- Nov 10, 2025: $1,435,000, Apt 6D
- Aug 14, 2025: $1,425,000, Apt 6B
- Mar 13, 2025: $1,629,200, Apt 7B
- Jan 23, 2025: $1,399,000, Apt 4C

The 10 most recent of 42 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

[450 Grand Nears Completion at 450 Grand Avenue in Clinton Hill, Brooklyn](https://newyorkyimby.com/2023/11/450-grand-nears-completion-at-450-grand-avenue-in-clinton-hill-brooklyn.html), New York YIMBY, Nov 27, 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