18 West 27th Street, Manhattan
Commercial · built c. 1908 · Block 828, Lot 59.
Building permits
- Alteration, filed Mar 7, 2025, estimated cost $25K, described as “Filing to coordinate mechanical work for various previously permitted tenant fit-outs. HVAC units on roof.”
- Alteration, filed Jun 25, 2024, estimated cost $60K, described as “Office Fit-Out at 8th Floor. No Change to Use, Egress, or Occupancy. Condenser on Roof.”
- Alteration, filed Jun 25, 2024, estimated cost $13K, described as “Plumbing work associated with a new kitchenette, new accessible bathroom, and replacement of existing fixtures on existing bathroom.”
- Alteration, filed Jun 5, 2024, estimated cost $12K, described as “Plumbing work associated with a new kitchenette, new accessible bathroom, and replacement of existing fixtures on existing bathroom.”
- Alteration, filed Jun 4, 2024, estimated cost $70K, described as “Office Fit-Out at 8th Floor. No Change to Use, Egress, or Occupancy. Condenser on Roof.”
- Alteration, filed Oct 20, 2023, estimated cost $1K, described as “Installation of temporary heavy duty sidewalk shed as per plans. No change in use, egress or occupancy. Sidewalk shed shall comply with chapter #33 of 2022 the NYC building code. Live load 300PSF.”
- Alteration, filed Mar 13, 2023, estimated cost $80K, described as “Interior Fit-Out for Tenant at 9th Floor. No change in use, egress, or occupancy.”
- Alteration, filed Jan 2, 2023, estimated cost $60K, described as “Structural work associated with extend building stair between 12TH floor to roof, new bulkhead at roof level. No change in use, egress or occupancy.”
- Alteration, filed Dec 15, 2022, estimated cost $1K, described as “Proposed installation of temporary pipe scaffold as per plans. Work shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application.”
- Alteration, filed Dec 9, 2022, estimated cost $50K, described as “Extend building stair between 12TH floor to roof, new bulkhead at roof level. No change in use, egress or occupancy.”
- Alteration, filed Mar 24, 2022, estimated cost $6K, described as “Fixture replacements for two restrooms and additional fixtures at office kitchenette.”
- Alteration, filed Aug 18, 2021, estimated cost $25K, described as “Hereby filing for the installation of mechanical equipment (ac units and air outlets, toilet exhaust). No change in use, egress or occupancy.”
- Alteration, filed Aug 18, 2021, estimated cost $26K, described as “Interior renovation of existing commercial space, installation of new plumbing fixtures/sprinkler heads. No change in use, egress or occupancy.”
- Alteration, filed Aug 18, 2021, estimated cost $50K, described as “Interior renovation of existing commercial space, new doors and partitions. Installation of new plumbing fixtures/sprinkler heads, installation of new HVAC units. No change in use, egress or occupancy.”
- Alteration, filed Jun 28, 2021, estimated cost $65K, described as “Replace first floor storefront at North side of the building as per plans filed herewith. No change to use , egress or occupancy”
- Alteration, filed Jun 14, 2021, estimated cost $80K, described as “5h Floor Office-Fit Out Application. No change to use, egress or occupancy.”
- Alteration, filed May 25, 2021, estimated cost $55K, described as “Ground Floor Lobby Update. Minor partition changes. New lighting fixtures.”
- Alteration, filed Apr 3, 2021, estimated cost $1K, described as “Installation of temporary heavy duty sidewalk shed as per plans. No change in use, egress or occupancy. Sidewalk shed shall comply with chapter #33 of the NYC building code. Live load 300PSF.”
- Alteration, filed Oct 19, 2020, estimated cost $5K, described as “Install new 4" fire water service, (2) two primary backflow prevention assemblies, and floor drain. No change in use, egress, or occupancy under this application.”
- Alteration, filed Oct 19, 2020, estimated cost $235K, described as “Install new wet fire sprinkler system for complete building coverage as per plans and in accordance with LL87/2004. No change in use, egress, or occupancy under this application.”
Property taxes
- Assessment
- $3,901,950
- 2026–27 tax
- $400,155
- Market value (city estimate)
- $8,671,000
- Taxable value
- $3,688,740
- Assessed land
- $1,170,000
- Assessed improvements
- $2,731,950
Zoning
M1-8A/R11: floor area ratio 12.18 built, above the 12.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Landmarks
Part of Madison Square North Historic District (Historic District). 45 Landmarks Preservation Commission permits are on file.
Board and land use applications
- Midtown South Mixed-Use Plan (MSMX) (City Planning 2024M0142): Zoning map change, Zoning text change, Completed, filed Jan 16, 2025, decided Aug 14, 2025. The Department of City Planning is seeking a Zoning Map amendment from M1-6 and M1-6D to M1-9A/R12, M1-8A/R12, and M1-8A/R11 and a Zoning Text amendment to facilitate the development of housing and support critical economic activity across…
- 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.