Permit Record

Mechanical Systems

91 Butler Street, Brooklyn, NY 11231

ClassificationMechanical SystemsMultifamily MEP
Reliable value$10,000
ContractorMr. Air Nyc CORP →
Permit record
Parties
Contractor
Mr. Air Nyc CORP
Applicant
Mei Ling Wong
Owner
Pr
Architect
Not in source
Engineer
Not in source
Contractor license
622407
Building & lot · PLUTO
Building class
R3
Zoning district
R6B
Lot area
3,940 sq ft
Year built
1950
Units (total)
6
Units (residential)
6
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3004037501
Climate zone (IECC)
4A
Roof area (est.)
632 sq ft
HVAC tonnage (est.)
9.5 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.6839, -73.9914
Geocode confidence
95%
Geocode source
Not in source
Issued
May 6, 2022
Applied
Not in source
Work class
Not in source
Description
Source description

INSTALL NEW SPLIT A/C SYSTEM AT 3RD FLOOR APT#3B OF EXISTING 3 STORY BUILDING. NO CHANGE IN USE, EGRESS OR CERTIFICATE OF OCCUPANCY.

Status
Current status
finaled
Source status
Signed-off
Finaled
May 4, 2022
Expired
Aug 13, 2022
Provenance
First seen by PermitCore
May 2, 2026 · 09:51 UTC
Last seen
May 12, 2026 · 00:05 UTC
Last changed
May 2, 2026 · 09:51 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

7 permits at this parcel (parcel 3004037501) · Dec 18, 2017 – May 6, 2022

  1. May 6, 2022This permitMEP Mechanical HVAC · Finaled$10,000Mr. Air Nyc CORP
  2. Jul 17, 20183601120Other · IssuedSuare 2 LLC
  3. Jul 17, 2018legacy_jobs:3033179Alteration Residential · Finaled$23,500
  4. Dec 18, 2017legacy_jobs:2946033Alteration Residential · Issued$30,000
  5. Dec 18, 20173493260Other · IssuedDm Contracting & Rest Cor
  6. Date not in sourcelegacy_jobs:2817012Alteration Residential · Disapproved$1,000
  7. Date not in sourcelegacy_jobs:2754559Alteration Residential · Disapproved$1,000

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

Other permits by Mr. Air Nyc CORP

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Developer details
Permit #
556478101|Mechanical Systems
Canonical ID
1:556478101|Mechanical Systems
Source permit ID
556478101|Mechanical Systems
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