# 51 West 52nd Street, Manhattan Commercial · built 1964 · Block 1268, Lot 1. On Umarelli: https://umarelli.org/nyc/1012680001/51-west-52-street More construction in Midtown West: https://umarelli.org/nyc/manhattan/midtown-west.md ## Building permits - Alteration, filed Jul 8, 2026, estimated cost $2.1M, described as “General Construction buildout to existing 8th floor office space as per plans submitted herewith. No Change to Use, Occupancy Group, or Egress” - Alteration, filed Jul 1, 2026, estimated cost $106K, described as “Removal of existing convenience stair from the 8-10th floors as per plans submitted herewith. No Change to Use, Occupancy or Egress.” - Alteration, filed Jun 3, 2026, estimated cost $300K, described as “Interior alterations to the 13th and 14th floor office space to include general construction work as per plans submitted herewith. No Change to Use, Occupancy Group, or Egress” - Alteration, filed May 7, 2026, estimated cost $2.1M, described as “Interior alterations to the 5th floor office space to include general construction work as per plans submitted herewith. No Change to Use, Occupancy Group, or Egress” - Alteration, filed Apr 28, 2026, estimated cost $1.5M, described as “General Construction buildout to existing 2nd floor office space as per plans submitted herewith. No Change to Use, Occupancy Group, or Egress” - Alteration, filed Apr 22, 2026, estimated cost $1.5M, described as “General Construction buildout to existing 3rd floor office space as per plans submitted herewith. No Change to Use, Occupancy Group, or Egress” - Alteration, filed Apr 21, 2026, estimated cost $225K, described as “Interior alterations to the 15th floor office space to include general construction work as per plans submitted herewith. No Change to Use, Occupancy Group, or Egress” - Alteration, filed Apr 2, 2026, estimated cost $200K, described as “Modifications to the existing sprinkler system on the 23rd Floor- (Orrick Buildout) as per plans. No change to use, egress or occupancy.” - Alteration, filed Mar 3, 2026, estimated cost $320K, described as “Modification the existing mechanical system as per plans. No change to use, egress or occupancy” - Alteration, filed Mar 3, 2026, estimated cost $29K, described as “Modification to the existing plumbing system on the 17th floor as per plan. no change to use egress or occupancy” - Alteration, filed Mar 3, 2026, estimated cost $751K, described as “Minor demolition with installation of new partitions, doors, suspended ceilings and finishes on the 17th floor as per plans. No change to use, egress or occupancy.” - Alteration, filed Mar 3, 2026, estimated cost $75K, described as “Structural modification on the 17-18 floor as per plans. No change to use egress or occupancy.” - Alteration, filed Mar 3, 2026, estimated cost $183K, described as “Modification the existing sprinkler system on the 17 floor as per plans. No change to use, egress or occupancy” - Alteration, filed Feb 4, 2026, estimated cost $2.0M, described as “Interior alterations to the 4th floor office space to include general construction work as per plans submitted herewith. No Change to Use, Occupancy Group, or Egress” - Alteration, filed Jan 29, 2026, estimated cost $70K, described as “Interior Demo to existing 3rd floor office space as per plans submitted herewith. No Change to Use, Occupancy Group, or Egress” - Alteration, filed Jan 28, 2026, estimated cost $70K, described as “Interior Demo to existing 2nd floor office space as per plans submitted herewith. No Change to Use, Occupancy Group, or Egress” - Alteration, filed Jan 14, 2026, estimated cost $361K, described as “Plumbing: Modifications to the existing plumbing system on the (16th Floors- Orrick) as per plans. No change to use, egress or occupancy.” - Alteration, filed Jan 9, 2026, estimated cost $827K, described as “Mechanical: Modifications to the existing HVAC system on the (23rd Floors- Orrick Buildout) as per plans. No change to use, egress or occupancy.” - Alteration, filed Jan 8, 2026, estimated cost $284K, described as “Plumbing: Modifications to the existing plumbing system on the (23rd Floor- Orrick) as per plans. No change to use, egress or occupancy.” - Alteration, filed Jan 8, 2026, estimated cost $828K, described as “Mechanical: Modifications to the existing HVAC system on the 16th Floors- (Orrick) as per plans. No change to use, egress or occupancy.” - Alteration, filed Jan 8, 2026, estimated cost $209K, described as “Modifications to the existing sprinkler system on the 23rd Floor- (Orrick Buildout) as per plans. No change to use, egress or occupancy.” - Alteration, filed Jan 6, 2026, estimated cost $5.8M, described as “Minor demolition with installation of new partitions, doors, suspended ceilings and finishes on the (23rd Floor-Orrick-Buildout) as per plans. No change to use, egress or occupancy.” - Alteration, filed Jan 2, 2026, estimated cost $171K, described as “Modifications to the existing sprinkler system on the 16th Floor- (Orrick) as per plans. No change to use, egress or occupancy.” - Alteration, filed Dec 29, 2025, estimated cost $6.0M, described as “Minor demolition with installation of new partitions, doors, suspended ceilings and finishes on the 16th Floor- (Orrick) as per plans. No change to use, egress or occupancy.” - No Work, filed Sep 10, 2025 89 more, older permits are in this building’s full list on the map: https://umarelli.org/nyc/1012680001/51-west-52-street. ## Property taxes - Assessment: $154,502,550 - 2026–27 tax: $16,760,437 - Market value (city estimate): $343,339,000 - Taxable value: $154,502,550 - Assessed land: $40,230,000 - Assessed improvements: $114,272,550 ## Zoning C5-3 (part of the lot is C5-2.5): floor area ratio 17.12 built, above the 15.00 base zoning allows, which bonuses, transfers or older rules can permit. ## Recent sales - Oct 13, 2021: $760,000,000 Open-market sales since 2016, from the Department of Finance’s sales files. ## Flood zone Current FEMA flood map: zone X, minimal flood hazard. ## Landmarks Part of CBS Building (Individual Landmark). 50 Landmarks Preservation Commission permits are on file. ## Board and land use applications - CBS BUILDING (City Planning P1998M0103): Completed, decided Mar 3, 1998. LANDMARK-CITY COLLEGE OF NY, REMSEN CEMETERY,TROTTING\*COURSE LA; Additional LPC #(s): 412 ## In the news [144,312-Square-Foot Lease Renewal Signed At 51 West 52nd Street In Midtown East, Manhattan](https://newyorkyimby.com/2024/07/144312-square-foot-lease-renewal-signed-at-51-west-52nd-street-in-midtown-east-manhattan.html), New York YIMBY, Jul 6, 2024. From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology