Permit Record

Mechanical Systems

23 Polhemus Place, Brooklyn, NY 11215

ClassificationHVAC / Mechanical
Reliable value$35,000
ContractorHome Air INC →
Permit record
Parties
Contractor
Home Air INC
Applicant
Samuel Chiu
Owner
23 Owners LLC
Architect
Not in source
Engineer
Not in source
Contractor license
620057
Building & lot · PLUTO
Building class
B9
Zoning district
R6B
Lot area
1,584 sq ft
Year built
1898
Units (total)
2
Units (residential)
2
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3010700004
Climate zone (IECC)
4A
Roof area (est.)
2,065 sq ft
HVAC tonnage (est.)
7 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.6722, -73.9760
Geocode confidence
95%
Geocode source
Not in source
Issued
Jul 6, 2021
Applied
Not in source
Work class
Not in source
Description
Source description

Installation of bathroom and kitchen exhaust system and outdoor air cooled heat pumps and associated indoor fan coil units, refrigerant piping, condensate drain piping and controls.

Status
Current status
finaled
Source status
Signed-off
Finaled
Aug 28, 2020
Expired
Oct 16, 2021
Provenance
First seen by PermitCore
May 2, 2026 · 10:03 UTC
Last seen
May 12, 2026 · 00:10 UTC
Last changed
May 2, 2026 · 10:03 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 3010700004) · Jul 30, 2020 – Jul 6, 2021

  1. Jul 6, 2021This permitMEP Mechanical HVAC · Finaled$35,000Home Air INC
  2. Apr 9, 20213842030Other · IssuedAurous Construction Coll*
  3. Sep 16, 2020733248756MEP Plumbing · Finaled$35,000Crossfield P & H CORP
  4. Jul 30, 2020legacy_jobs:3212775Alteration Commercial · Finaled$119,000
  5. Jul 30, 20203778317Other · IssuedAurous Construction Coll*
  6. Jul 30, 2020legacy_jobs:3212784Alteration Commercial · Finaled$119,000

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

Other permits by Home Air INC

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Developer details
Permit #
794328114|Mechanical Systems
Canonical ID
1:794328114|Mechanical Systems
Source permit ID
794328114|Mechanical Systems
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