150 Fifth Avenue, Manhattan
Commercial · built c. 1890 · Block 821, Lot 41.
Building permits
- Alteration, filed Jul 23, 2026, estimated cost $123K, described as “Modifications to the existing HVAC system on the 3rd floor as per plans. No change to use, egress or occupancy.”
- Alteration, filed Mar 26, 2026, estimated cost $6K, described as “Foundation work on the cellar floor as per plans. No change to Use, Egress or Occupancy.”
- Alteration, filed Mar 25, 2026, estimated cost $614K, described as “Minor demolition with installation of new partitions on the cellar and 1st floors as per plans. No change to Use, Egress or Occupancy.”
- Alteration, filed Mar 24, 2026, estimated cost $247K, described as “Modifications to the existing HVAC system on the cellar and 1st floors as per plans. No change to use, egress or occupancy.”
- Alteration, filed Mar 24, 2026, estimated cost $21K, described as “Modifications to the existing sprinkler system on the cellar and 1st floors as per plans. No change to use, egress or occupancy.”
- Alteration, filed Mar 24, 2026, estimated cost $188K, described as “Modifications to the existing plumbing system on the 1st floor as per plans. No change to use, egress or occupancy.”
- Alteration, filed Mar 24, 2026, estimated cost $161K, described as “Modification to existing structural system on cellar and 1st floors as per plans filed. No change in use, egress or occupancy.”
- Alteration, filed Mar 6, 2026, estimated cost $27K, described as “Minor demolition with installation of new partitions on the 1st floor (Security Office Expansion) as per plans. No change to Use, Egress or Occupancy.”
- Alteration, filed Dec 16, 2025, estimated cost $1K, described as “Mechanical filing to obtain COC on roof-12th floors, to address multiple violations. No change in use, egress or occupancy.”
- Alteration, filed Apr 28, 2025, estimated cost $16K, described as “Sprinkler modifications taking place on the 1ST floor as per drawings filed herewith. No change in use, eggress or occupancy.”
- Alteration, filed Apr 28, 2025, estimated cost $195K, described as “Mechanical modifications taking place on the 1ST floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Apr 28, 2025, estimated cost $845K, described as “General construction modifications taking place on the 1 st floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Apr 28, 2025, estimated cost $10K, described as “Plumbing modifications taking place on the 1ST floor as per drawings filed herewith. No change in use, egress or occupancy.”
- No Work, filed Apr 22, 2025
- Alteration, filed Apr 22, 2025, estimated cost $308K, described as “Plumbing modifications taking place on the 3RD floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Apr 22, 2025, estimated cost $1.2M, described as “Mechanical modifications taking place on the 3RD floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Apr 22, 2025, estimated cost $168K, described as “Sprinkler modifications taking place on the 2ND and 3RD floor as per drawings filed herewith. No change in use, eggress or occupancy.”
- Alteration, filed Apr 21, 2025, estimated cost $321K, described as “Structural modifications taking place on the 2nd, 3rd and 4th floor as per drawings filed herewith. No chance in use, egress or occupancy.”
- Alteration, filed Apr 16, 2025, estimated cost $6.0M, described as “General construction modifications taking place on the 2ND and 3RD floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Mar 26, 2025, estimated cost $4.0M, described as “Structural modifications to take place First floor and Cellar as per drawings filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Feb 13, 2025, estimated cost $421K, described as “General construction modifications taking place on the 1ST floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Nov 13, 2024, estimated cost $1.0M, described as “Mechanical modifications on the 10th & 11th floor as per drawings filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Nov 13, 2024, estimated cost $85K, described as “Interior Structural modifications to take place on the 11th & 12th floor as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Nov 12, 2024, estimated cost $179K, described as “Plumbing modifications to take place on the 10th & 11th floor as per drawings filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Nov 12, 2024, estimated cost $132K, described as “Sprinkler modifications to take place on the 10th & 11th floor as per plans filed herewith. No change in use, egress, or occupancy.”
32 more, older permits are in this building’s full list on the map.
Property taxes
- Assessment
- $60,722,550
- 2026–27 tax
- $6,466,245
- Market value (city estimate)
- $134,939,000
- Taxable value
- $59,607,720
- Assessed land
- $4,500,000
- Assessed improvements
- $56,222,550
Zoning
C6-4M (part of the lot is C6-4A): floor area ratio 9.78 built, 10.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Landmarks
Part of Ladies' Mile Historic District (Historic District). 50 Landmarks Preservation Commission permits are on file.
Board and land use applications
- Flatiron BID Expansion (City Planning 2021M0260): Business improvement district, Completed, filed Nov 30, 2020, decided May 19, 2021. An application from the Small Business Services (SBS) on behalf of the Flatiron Business Improvement District (BID) to modify the existing plan and expand the BID in Community Districts 4 and 5 of Manhattan.