Permit Record

Residential

431 Lake Street, Brooklyn, NY 11223

ClassificationOTMultifamily Alteration
Reliable valueNot in source
Permit record
Parties
Applicant
Hanjun Bai
Owner
N/a
Architect
Not in source
Engineer
Not in source
Contractor license
0616907
Building & lot · PLUTO
Building class
C0
Zoning district
R5
Lot area
2,516 sq ft
Year built
1960
Units (total)
3
Units (residential)
3
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3071490151
Climate zone (IECC)
4A
Roof area (est.)
660 sq ft
HVAC tonnage (est.)
4.5 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.5933, -73.9747
Geocode confidence
95%
Geocode source
Not in source
Issued
Jan 21, 2019
Applied
Jan 21, 2019
Work class
Residential
Status
Current status
issued
Source status
ISSUED
Expired
Jan 27, 2020
Provenance
First seen by PermitCore
May 2, 2026 · 16:33 UTC
Last seen
Jul 17, 2026 · 02:32 UTC
Last changed
May 2, 2026 · 16:33 UTC
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

4 permits at this parcel (parcel 3071490151) · Sep 24, 2018Jan 21, 2019

  1. Jan 21, 2019This permitOther · IssuedH&z Building Consulting I
  2. Sep 24, 2018legacy_jobs:3079233Alteration Residential · Finaled$128,240
  3. Sep 24, 20183636560Other · IssuedH&z Building Consulting I
  4. Sep 24, 20183636562MEP Plumbing · IssuedTop Plumbing System INC

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

Other permits by H&z Building Consulting I

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Developer details
Permit #
3643855
Canonical ID
1:3643855
Source permit ID
3643855
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