6409 20th Avenue, Brooklyn
Commercial · built c. 1931 · Block 5549, Lot 5.
Building permits
- Alteration, filed Mar 8, 2024, estimated cost $994K, described as “Horizontal extension to an existing building at the 2nd floor. Obtain new C of O.”
- No Work, filed Apr 28, 2022
- Alteration, filed Apr 28, 2022, estimated cost $10K, described as “To file MS mechanical work in conjunction with DOB Now Build application job#B00605839-I1”
- Alteration, filed Oct 7, 2021, estimated cost $310K, described as “Change 1st floor use from commericial retail u.g. 6 to DAYCARE CENTER/SCHOOL FROM 2YEARS TO 6YEARS u.g. 3. Obtain new c of o.”
- Alteration, filed Jun 21, 2021, estimated cost $10K, described as “To file SP work in conjunction with dob now build application job# B00532377”
- Alteration, filed Jun 8, 2021, estimated cost $100K, described as “Renovation of an existing building proposed daycare center/school from 2 to 6 years U.G. 3 at 1st floor. Layout approved under Alt-CO job# B00605839. No change in use, egress or occupancy under this application.”
- Alteration, filed Jun 8, 2021, estimated cost $6K, described as “To file PL work in conjunction with dob now application job#B00532377.”
Property taxes
- Assessment
- $804,150
- 2026–27 tax
- $81,259
- Market value (city estimate)
- $1,787,000
- Taxable value
- $749,070
- Assessed land
- $210,600
- Assessed improvements
- $593,550
Zoning
R5: floor area ratio 1.06 built, 1.50 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Mar 28, 2023: $3,380,000
- May 20, 2021: $472,500
Open-market sales since 2016, from the Department of Finance’s sales files.