5621 20th Avenue, Brooklyn
Industrial · built c. 1931 · Block 5495, Lot 337.
Building permits
- Alteration, filed Jul 8, 2020, estimated cost $5K, described as “Application filed herewith to obtain new certificate of compliance (eup) for roof-top condenser HVAC unit replacement, HVAC unit serving third floor commercial space, no new ducting involved.”
- Alteration, filed Jun 2, 2020, estimated cost $15K, described as “AT&T - Replacement of existing antennas & RRH units with installation of RRH units. Retrofit of existing cabinet in the existing equipment room in the basement. All work in compliance with TPPN 5/98. No change to occupancy, use or egress.”
- Alteration, filed Dec 13, 2019, estimated cost $12K, described as “Mechanical filing herewith, in conjunction to alt-ii application #321987999”
- Alteration, filed Mar 9, 2018, estimated cost $21K, described as “AT&T WIRELESS. Replacement of existing telecommunications antennas with replacement/installation of RRH units on roof. Retrofit of cabinets in the existing equipment room in cellar. All work in compliance with TPPN 5/98. No change to…”
Property taxes
- Assessment
- $1,847,250
- 2026–27 tax
- $128,233
- Market value (city estimate)
- $4,105,000
- Taxable value
- $1,581,660
- Assessed land
- $82,350
- Assessed improvements
- $1,764,900
Tax breaks
- ICAP abatement, through Jun 30, 2046, a $43,346 credit this tax year.
Zoning
R5: floor area ratio 3.23 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.