726 5th Avenue, Brooklyn
Apartment building · 21 units · built 2002 · Block 649, Lot 35.
Building permits
- Alteration, filed Apr 10, 2026, estimated cost $2K, described as “Install exterior non-illuminated wall sign (the tiny scientist)”
- Alteration, filed Jun 20, 2025, estimated cost $35K, described as “Filing alt-1 to change the use of the community facility space at 001 to a commercial use with minor proposed work to flip an egress door”
- Alteration, filed Jun 12, 2023, estimated cost $4K, described as “Herewith filing to change job from non diretive 14 to directive 14. No plan changes for directive 14 change only.”
- Alteration, filed Dec 14, 2022, estimated cost $10K, described as “Proposing repairs to existing retaining wall”
Property taxes
- Assessment
- $1,241,550
- 2026–27 tax
- $8,240
- Market value (city estimate)
- $2,759,000
- Taxable value
- $66,240
- Assessed land
- $202,950
- Assessed improvements
- $1,038,600
Tax breaks
- 421-a exemption, through Jun 30, 2031, about $146,197 a year below the full tax.
Zoning
R6A: floor area ratio 3.97 built, above the 3.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.