# 5302 21st Avenue, Brooklyn

Parochial school · built c. 1931 · Block 5495, Lot 1138.

On Umarelli: https://umarelli.org/nyc/3054951138/5302-21-avenue

More construction in Ocean Parkway: https://umarelli.org/nyc/brooklyn/ocean-parkway.md

Every lot on block 5495: https://umarelli.org/nyc/brooklyn/5495.md

## Building permits

- Alteration, filed Jul 15, 2026, estimated cost $1.2M, described as “Design of reinforcement for new 2-story reinforcement”
- Alteration, filed Jul 29, 2025, estimated cost $47K, described as “Filing for DOB denial for BSA - alteration application to add multiple stories and do interior renovation”

## Property taxes

- Assessment: $4,207,950
- Market value (city estimate): $9,351,000
- Taxable value: $0
- Assessed land: $146,250
- Assessed improvements: $4,061,700

## Tax breaks

- Nonprofit exemption (religious school), with no end date, about $456,478 a year below the full tax.

## Zoning

R5: floor area ratio 3.00 built, above the 1.50 base zoning allows, which bonuses, transfers or older rules can permit.

## 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