5804 18th Avenue, Brooklyn
Parochial school · built c. 1931 · Block 5504, Lot 37.
Building permits
- Alteration, filed Jun 11, 2026, described as “Installation of temporary sidewalk shed as per plans. No change in use, egress or occupancy.”
- Alteration, filed Jun 11, 2026, described as “Installation of temporary pipe scaffold as per plans. No change in use, egress or occupancy.”
- Alteration, filed Jan 22, 2026, estimated cost $176K, described as “Reface exterior wall with stucco and replace windows as per plan. No change in use, egress or occupancy.”
Property taxes
- Assessment
- $758,700
- Market value (city estimate)
- $1,686,000
- Taxable value
- $0
- Assessed land
- $67,500
- Assessed improvements
- $691,200
Tax breaks
- Nonprofit exemption (religious school), with no end date, about $82,304 a year below the full tax.
Zoning
R5: floor area ratio 2.20 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.