Permit Record

Alteration Residential

644 51 Street, Brooklyn, NY

ClassificationA2Residential Alteration
Reliable value$20,000
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Not in source
Owner
Kuong On Si
Architect
Shiming Tam
Engineer
Not in source
Contractor license
Not in source
Building & lot · PLUTO
Building class
B9
Zoning district
R6B
Lot area
2,003 sq ft
Year built
1905
Units (total)
2
Units (residential)
2
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3008010024
Climate zone (IECC)
4A
Roof area (est.)
1,064 sq ft
HVAC tonnage (est.)
3.5 tons
Building type
R
Building subtype
1-2-3 FAMILY
Geocode & dates
Coordinates
40.6426, -74.0077
Geocode confidence
95%
Geocode source
Not in source
Issued
Sep 25, 2003
Applied
Sep 4, 2003
Work class
Residential
Description
Source description

Minor partition & plumbing work as per plan. No change in use, egress or occupancy.

Status
Current status
finaled
Source status
SIGNED OFF
Finaled
Nov 24, 2003
Provenance
First seen by PermitCore
May 6, 2026 · 19:02 UTC
Last seen
Jun 10, 2026 · 18:56 UTC
Last changed
Jun 10, 2026 · 18:56 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

4 permits at this parcel (parcel 3008010024) · Sep 11, 2003 – Sep 25, 2003

  1. Sep 25, 2003This permitAlteration Residential · Finaled$20,000
  2. Sep 25, 2003legacy_jobs:984061Alteration Residential · Finaled$20,000
  3. Sep 25, 2003926104MEP Plumbing · IssuedPinnacle Plbg & Htg CORP
  4. Sep 11, 2003711032Other · IssuedProvidence Builders CORP.

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

Developer details
Permit #
legacy_jobs:946614
Canonical ID
1:legacy_jobs:946614
Source permit ID
legacy_jobs:946614
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