Permit Record

Alteration Residential

520 Jefferson Ave., Brooklyn, NY

ClassificationA2Multifamily Alteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Not in source
Owner
Douglas Adams
Architect
Not in source
Engineer
Neal Rudikoff
Contractor license
Not in source
Building & lot · PLUTO
Building class
C1
Zoning district
R6B
Lot area
2,925 sq ft
Year built
1910
Units (total)
8
Units (residential)
8
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3016540016
Climate zone (IECC)
4A
Roof area (est.)
2,068 sq ft
HVAC tonnage (est.)
14 tons
Building type
R
Building subtype
OTHERS
Geocode & dates
Coordinates
40.6848, -73.9371
Geocode confidence
95%
Geocode source
Not in source
Issued
Dec 9, 2013
Applied
Nov 29, 2013
Work class
Residential
Description
Source description

REPLACE BOILER AND OIL BURNER (NYC BLR NO. MD154132-01)

Status
Current status
finaled
Source status
SIGNED OFF
Finaled
Feb 27, 2015
Provenance
First seen by PermitCore
May 6, 2026 · 18:52 UTC
Last seen
Jun 7, 2026 · 15:00 UTC
Last changed
Jun 7, 2026 · 15:00 UTC

Open in New York City source →

Data-quality checks1 of 12 flagged

1 of 12 data-quality checks flagged on this permit. Detail below.

Valuation is placeholder
valuation_usd_is_placeholder

valuation_usd matched a known placeholder (often 0 or 1) used by the source when the real valuation wasn't reported.

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
Project timeline at this parcel

3 permits at this parcel (parcel 3016540016) · Nov 29, 2013 – Dec 9, 2013

  1. Dec 9, 2013This permitAlteration Residential · Finaled
  2. Dec 9, 20131977908Alteration Commercial · IssuedMichael S. Kaplan
  3. Nov 29, 20131753880Alteration Commercial · IssuedMichael S. Kaplan

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

Developer details
Permit #
legacy_jobs:2312225
Canonical ID
1:legacy_jobs:2312225
Source permit ID
legacy_jobs:2312225
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