687 Park Avenue, Brooklyn
Apartment building · 5 units · built c. 1931 · Block 1730, Lot 57.
Building permits
- Alteration, filed Dec 30, 2025, estimated cost $10K, described as “Foundation application hereby filed in conjunction with Alt. CO-NB Application: B01275211-I1”
- Major Renovation — Multi-Family, filed Aug 28, 2025, estimated cost $1.4M, 5 units in all, 4 stories, described as “Proposed vertical and horizontal enlargement to an existing three (3) story + cellar residential use building; converting to a four (4) story + cellar and penthouse residential use building.”
Property taxes
- Assessment
- $458,100
- 2026–27 tax
- $7,407
- Market value (city estimate)
- $1,018,000
- Taxable value
- $59,544
- Assessed land
- $16,200
- Assessed improvements
- $441,900
Zoning
R6B: floor area ratio 1.50 built, 2.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.