Permit Record

Mechanical Systems

5022 5 Avenue, Brooklyn, NY 11220

ClassificationMechanical SystemsCommercial HVAC
Reliable value$30,000
ContractorJj Well Construction INC →
Permit record
Parties
Contractor
Jj Well Construction INC
Applicant
Wing Ken Chow
Owner
5416 5th Ave LLC
Architect
Not in source
Engineer
Not in source
Contractor license
034633
Building & lot · PLUTO
Building class
K4
Zoning district
C4-3A
Lot area
1,800 sq ft
Year built
1931
Units (total)
1
Units (residential)
0
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3007910044
Climate zone (IECC)
4A
Roof area (est.)
1,800 sq ft
HVAC tonnage (est.)
4.5 tons
Building type
M
Building subtype
Not in source
Geocode & dates
Coordinates
40.6448, -74.0109
Geocode confidence
100%
Geocode source
geocodio
Issued
Jun 5, 2025
Applied
Not in source
Work class
Not in source
Description
Source description

INSTALL MINI SPLIT UNITS FOR CELLAR AND 1ST FLOOR FOR EXISTING BUILDING. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

Status
Current status
finaled
Source status
Signed-off
Finaled
Jun 3, 2025
Expired
Jan 26, 2026
Provenance
First seen by PermitCore
May 2, 2026 · 10:00 UTC
Last seen
Jun 8, 2026 · 19:29 UTC
Last changed
Jun 8, 2026 · 19:29 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.

Residential units is placeholder
units_residential_is_placeholder

units_residential matched a known placeholder value used by the source when the field 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
  • Total units out of bounds
  • Total units is placeholder
  • Valuation out of bounds
  • Valuation is placeholder
Project timeline at this parcel

9 permits at this parcel (parcel 3007910044) · Jul 18, 2024 – Jun 5, 2025

  1. Jun 5, 2025This permitMEP Mechanical HVAC · Finaled$30,000Jj Well Construction INC
  2. Mar 6, 2025195433231Temporary Sign · Finaled$1,000Signstar Nyc
  3. Nov 13, 2024805232056Alteration Residential · Finaled$40,000Jj Well Construction INC
  4. Oct 23, 2024924240091Alteration Commercial · Issued$97,350Timing Construction Team*
  5. Sep 13, 2024557146697Temporary · Finaled$1,000Phoenix Sutton Str INC
  6. Aug 7, 2024181934709MEP Plumbing · Finaled$60,000S & L Plumbing INC
  7. Jul 18, 2024182732249Alteration Commercial · Issued$97,350Jj Well Construction INC
  8. Date not in sourcelegacy_jobs:1748472Alteration Commercial · Disapproved$15,000
  9. Date not in sourcelegacy_jobs:1748463Alteration Commercial · Disapproved$15,000

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 #
750303733|Mechanical Systems
Canonical ID
1:750303733|Mechanical Systems
Source permit ID
750303733|Mechanical Systems
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