540 Argyle Road, Brooklyn
Single family · built c. 1925 · Block 5198, Lot 9.
Building permits
- Alteration, filed Aug 3, 2026, estimated cost $10K, described as “Convert existing one family to two family dwelling. Obtain new certificate of occupancy.”
- Alteration, filed Mar 19, 2026, estimated cost $60K, described as “Remove partition wall, install 3pc bathroom, replace with metal stairs as per plan. Repair existing creak chimney. To remedy ECB violations #39178339K, #39178340H, #39178341J, #39178342L and #39178338Z. No change in use occupancy or egress.”
Property taxes
- Assessment
- $121,020
- 2026–27 tax
- $9,812
- Market value (city estimate)
- $2,017,000
- Taxable value
- $49,447
- Assessed land
- $25,440
- Assessed improvements
- $95,580
Zoning
R3X: floor area ratio 0.75 built, 0.75 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Aug 15, 2025: $1,410,000
Open-market sales since 2016, from the Department of Finance’s sales files.