Permit Record

Mechanical Systems

844 71 Street, Brooklyn, NY 11228

ClassificationHVAC / Mechanical
Reliable value$30,000
ContractorJj Well Construction INC →
Permit record
Parties
Contractor
Jj Well Construction INC
Applicant
Wing Ken Chow
Owner
Pr
Architect
Not in source
Engineer
Not in source
Contractor license
034633
Building & lot · PLUTO
Building class
A5
Zoning district
R4-1
Lot area
2,800 sq ft
Year built
1925
Units (total)
1
Units (residential)
1
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3059010024
Climate zone (IECC)
4A
Roof area (est.)
702 sq ft
HVAC tonnage (est.)
2.5 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.6285, -74.0149
Geocode confidence
95%
Geocode source
Not in source
Issued
Sep 8, 2023
Applied
Not in source
Work class
Not in source
Description
Source description

Proposed to install new air conditioning units as per plan. No change in use, egress or occupancy.

Status
Current status
finaled
Source status
Signed-off
Finaled
Sep 8, 2023
Expired
Apr 16, 2024
Provenance
First seen by PermitCore
May 2, 2026 · 09:59 UTC
Last seen
May 12, 2026 · 00:09 UTC
Last changed
May 2, 2026 · 09:59 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

3 permits at this parcel (parcel 3059010024) · Jan 10, 2023 – Sep 8, 2023

  1. Sep 8, 2023This permitMEP Mechanical HVAC · Finaled$30,000Jj Well Construction INC
  2. Feb 21, 2023328584213MEP Plumbing · Finaled$24,000Control Plbg & Htg INC
  3. Jan 10, 2023949806669Alteration Commercial · Finaled$54,100Jj Well Construction INC

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

Other permits by Jj Well Construction INC

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Developer details
Permit #
733015969|Mechanical Systems
Canonical ID
1:733015969|Mechanical Systems
Source permit ID
733015969|Mechanical Systems
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