6814 20th Avenue, Brooklyn
Two-family with store · built 1945 · Block 5578, Lot 43.
Building permits
- Alteration, filed Oct 27, 2025, estimated cost $1K, described as “Propose to install non-illuminated, non-advertising sign. No change in use, egress, or occupancy.”
- Alteration, filed Mar 19, 2024, estimated cost $3K, described as “Filing for removal of sign, reverting back to existing conditions in response to violation 35657764Y. New illuminated sign to be proposed in compliance. No change in use, egress , and occupancy.”
- Alteration, filed Oct 31, 2021, estimated cost $15K, described as “File this application for plumbing work type for the interior renovation of existing commercial space. Work on 1ST floor only. No change to use, egress, or occupancy.”
- Alteration, filed Oct 26, 2021, estimated cost $20K, described as “File this application for the interior renovation of existing commericial space. Work on 1ST floor only. No change to use, egress, or occupancy.”
Property taxes
- Assessment
- $94,200
- 2026–27 tax
- $6,450
- Market value (city estimate)
- $1,570,000
- Taxable value
- $32,506
- Assessed land
- $13,740
- Assessed improvements
- $80,460
Zoning
R5: floor area ratio 2.23 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.
Recent sales
- Jun 1, 2021: $1,580,000
Open-market sales since 2016, from the Department of Finance’s sales files.