Permit Record

Mechanical Systems

6806 18 Avenue, Brooklyn, NY 11204

ClassificationMechanical SystemsCommercial HVAC
Reliable value$10,000
ContractorHigh Quality Construction →
Permit record
Parties
Contractor
High Quality Construction
Applicant
Zhen Ai He
Owner
Pr
Architect
Not in source
Engineer
Not in source
Contractor license
618877
Building & lot · PLUTO
Building class
S1
Zoning district
R5
Lot area
1,750 sq ft
Year built
1931
Units (total)
2
Units (residential)
1
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3055760042
Climate zone (IECC)
4A
Roof area (est.)
314 sq ft
HVAC tonnage (est.)
2 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.6173, -73.9921
Geocode confidence
95%
Geocode source
Not in source
Issued
Nov 13, 2023
Applied
Not in source
Work class
Commercial
Description
Source description

RENOVATION ON 1ST FLOOR AND ROOF OF EXIST. MIXED USE BUILDING WITH, REMOVE HVAC AND DUCT, INSTALL NEW SPLIT TYPE A/C UNITS, ALSO REPAIR CEILING AND ROOF AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

Status
Current status
finaled
Source status
Signed-off
Finaled
Nov 8, 2023
Expired
Mar 15, 2024
Provenance
First seen by PermitCore
May 2, 2026 · 09:48 UTC
Last seen
May 12, 2026 · 00:04 UTC
Last changed
May 2, 2026 · 09:48 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

6 permits at this parcel (parcel 3055760042) · Jan 28, 2011 – Nov 13, 2023

  1. Nov 13, 2023This permitMEP Mechanical HVAC · Finaled$10,000High Quality Construction
  2. Nov 13, 2023516221425Alteration Commercial · Finaled$10,000High Quality Construction
  3. May 11, 20112401067Other · IssuedBelfor Long Island LLC
  4. Feb 8, 2011legacy_jobs:1908853Alteration Commercial · Finaled$128,000
  5. Feb 8, 20112359953MEP Plumbing · IssuedL & N Plumbing, INC
  6. Jan 28, 20112356558Other · IssuedBelfor Long Island LLC

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

Other permits by High Quality Construction

Showing up to 12 most-recent permits by this contractor in the indexed window

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Developer details
Permit #
516221425|Mechanical Systems
Canonical ID
1:516221425|Mechanical Systems
Source permit ID
516221425|Mechanical Systems
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