Permit Record

Alteration Commercial

3523 Avenue J, Brooklyn, NY 11210

ClassificationBLMultifamily Alteration
Reliable valueNot in source
ContractorJ. Jekowsky & Son →
Permit record
Parties
Contractor
J. Jekowsky & Son
Applicant
Marvin Jekowsky
Owner
N/a
Architect
Not in source
Engineer
Not in source
Contractor license
0009564
Building & lot · PLUTO
Building class
C0
Zoning district
R5
Lot area
1,441 sq ft
Year built
1925
Units (total)
3
Units (residential)
3
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3075990076
Climate zone (IECC)
4A
Roof area (est.)
825 sq ft
HVAC tonnage (est.)
5.5 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.6273, -73.9413
Geocode confidence
95%
Geocode source
Not in source
Issued
Not in source
Applied
Not in source
Work class
Not in source
Status
Current status
issued
Source status
ISSUED
Expired
Not in source
Provenance
First seen by PermitCore
May 2, 2026 · 14:38 UTC
Last seen
Jul 17, 2026 · 17:03 UTC
Last changed
May 2, 2026 · 14:38 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

2 permits at this parcel (parcel 3075990076)

  1. Date not usable in sourceThis permitAlteration Commercial · IssuedJ. Jekowsky & Son
  2. Date not usable in source147323MEP Plumbing · IssuedJ. Jekowsky & Son

Full permit history at this parcel · as of Jul 9, 2026.

Other permits by J. Jekowsky & Son

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Developer details
Permit #
147318
Canonical ID
1:147318
Source permit ID
147318
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