565 6th Avenue, Brooklyn
Three-family · built c. 1899 · Block 1049, Lot 4.
Building permits
- Major Renovation — Enlargement, filed Oct 26, 2026, estimated cost $603K, 1 unit added, 4 stories, described as “Alt-co application filed for horizontal and vertical enlargement.proposed 4-family 4-story w/cellar and penthouse residential building to meet new building requirements as per bc 28-101.4.5. Obtain a c of o.”
- Alteration, filed Nov 3, 2021, estimated cost $36K, described as “Install plumbing fixtures and related piping as per plans, in conjuction with application # B00619109”
- Alteration, filed Oct 27, 2021, estimated cost $218K, described as “Renovation of residential units at second and third floors as per plans.”
Property taxes
- Assessment
- $214,320
- 2026–27 tax
- $4,456
- Market value (city estimate)
- $3,572,000
- Taxable value
- $22,458
- Assessed land
- $28,260
- Assessed improvements
- $186,060
Zoning
R6B: floor area ratio 1.38 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Dec 24, 2025: $2,549,000
Open-market sales since 2016, from the Department of Finance’s sales files.