809 Madison Avenue, Manhattan
Condominium · 11 units · built 1925 · Block 1382, Lot 7502.
Building permits
- Alteration, filed Aug 30, 2026
- Alteration — Mid-Rise, filed Aug 4, 2026, estimated cost $81K, 12 units, 14 stories
- Alteration — Multi-Family, filed Jul 16, 2026, estimated cost $1K, 33 units
- Alteration — Multi-Family, filed Jul 15, 2026, estimated cost $3K, 13 units
- Alteration, filed Mar 16, 2026
- Alteration — Mid-Rise, filed Mar 10, 2026, estimated cost $1K, 12 units, 14 stories
- Alteration — Multi-Family, filed Feb 2, 2026, estimated cost $26K, 13 units
- Alteration — Multi-Family, filed Jan 20, 2026, estimated cost $20K, 13 units
- Alteration, filed Dec 18, 2025, estimated cost $15K
- Alteration — Mid-Rise, filed Dec 12, 2025, estimated cost $50K, 33 units, 13 stories
- Alteration — Multi-Family, filed Nov 10, 2025, estimated cost $17K, 13 units
- Major Renovation — Mid-Rise, filed Oct 30, 2025, estimated cost $12.0M, 12 units, 14 stories
- Alteration — Multi-Family, filed Oct 15, 2025, estimated cost $26K, 13 units
- Alteration — Multi-Family, filed Sep 30, 2025, estimated cost $17K, 13 units
- Alteration — Multi-Family, filed May 9, 2025, estimated cost $1K, 11 units
Property taxes
- Assessment
- $8,582,400
- Last year’s tax
- $1,041,967
- Land value
- $1,323,000
- Improvement value
- $7,259,400
Zoning
C5-1: built 9.20 of 10.00 allowed floor area ratio.
In the news
Renderings Revealed for 809 Madison Avenue’s Expansion on Manhattan’s Upper East Side, New York YIMBY, Sep 24, 2025.