Permit Record

Alteration Commercial

511 West 23rd Street, Manhattan, NY

ClassificationA2Commercial Alteration
Reliable value$24,000
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Not in source
Owner
504 Owners LLC
Architect
Not in source
Engineer
Louis Lee
Contractor license
Not in source
Building & lot · PLUTO
Building class
K1
Zoning district
C6-2A
Lot area
8,393 sq ft
Year built
2015
Units (total)
1
Units (residential)
Not in source
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
1006950028
Climate zone (IECC)
4A
Roof area (est.)
8,573 sq ft
HVAC tonnage (est.)
21.5 tons
Building type
M
Building subtype
OTHERS
Geocode & dates
Coordinates
40.7479, -74.0046
Geocode confidence
95%
Geocode source
Not in source
Issued
Dec 7, 2017
Applied
Nov 30, 2017
Work class
Not in source
Description
Source description

INSTALLATION OF MANUAL AND AUTOMATIC SMOKE DETECTION FA SYSTEM. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

Status
Current status
issued
Source status
PERMIT ISSUED - ENTIRE JOB/WORK
Provenance
First seen by PermitCore
May 6, 2026 · 18:56 UTC
Last seen
Jun 10, 2026 · 18:06 UTC
Last changed
Jun 10, 2026 · 18:06 UTC

Open in New York City source →

Data-quality checks0 of 12 flagged

0 of 12 data-quality rules flagged anything on this permit.

Checks not flagged

  • Geocode out of bounds
  • Geocode is sentinel
  • Issued date in the future
  • Issued date parse bug
  • Issued date is placeholder
  • Commercial units is placeholder
  • Residential units out of bounds
  • Residential units is placeholder
  • Total units out of bounds
  • Total units is placeholder
  • Valuation out of bounds
  • Valuation is placeholder
Project timeline at this parcel

23 permits at this parcel (parcel 1006950028) · Jul 31, 2015 – Dec 7, 2017

  1. Dec 7, 2017This permitAlteration Commercial · Issued$24,000
  2. Mar 22, 2016legacy_jobs:2286987Alteration Commercial · Finaled
  3. Mar 22, 2016legacy_jobs:2345599Alteration Commercial · Finaled
  4. Jan 13, 20163100616Foundation Only · IssuedEurostruct INC
  5. Jan 13, 20163100620Foundation Only · IssuedEurostruct INC
  6. Nov 25, 20153077029New Construction Unknown · IssuedEurostruct INC
  7. Nov 24, 20153075792Other · IssuedEurostruct INC
  8. Aug 12, 2015legacy_jobs:2543480New Construction Commercial · Finaled
  9. Aug 12, 2015legacy_jobs:2543471New Construction Commercial · Finaled
  10. Aug 12, 20153020061MEP Plumbing · IssuedWtc Plbg & Heating CORP
  11. Aug 5, 20153016303Foundation Only · IssuedEurostruct INC
  12. Aug 5, 20153016298Foundation Only · IssuedEurostruct INC
  13. Aug 5, 20153016307New Construction Unknown · IssuedEurostruct INC
  14. Aug 5, 20153015833Construction Equipment · IssuedEurostruct INC
  15. Jul 31, 2015legacy_jobs:2366192Alteration Commercial · Finaled$5,000
  16. Jul 31, 2015legacy_jobs:2366183Alteration Commercial · Finaled$5,000
  17. Jul 31, 20153013184Other · IssuedEurostruct INC
  18. Date not in sourcelegacy_jobs:781935New Construction Commercial · Finaled
  19. Date not in sourcelegacy_jobs:2574942Alteration Commercial · Pending$1,000
  20. Date not in sourcelegacy_jobs:2574951Alteration Commercial · Pending$1,000
  21. Date not in sourcelegacy_jobs:823602New Construction Commercial · Finaled
  22. Date not in sourcelegacy_jobs:781926New Construction Commercial · Finaled
  23. Date not in sourcelegacy_jobs:823611New Construction Commercial · Finaled

Full permit history at this parcel · as of Jul 18, 2026.

Developer details
Permit #
legacy_jobs:2946479
Canonical ID
1:legacy_jobs:2946479
Source permit ID
legacy_jobs:2946479
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