Permit Record

Mechanical Systems

1428 Nostrand Avenue, Brooklyn, NY 11226

ClassificationMechanical SystemsCommercial HVAC
Reliable value$20,000
ContractorSin Do Construction INC →
Permit record
Parties
Contractor
Sin Do Construction INC
Applicant
Hyeeun Jeong
Owner
Max Sports
Architect
Not in source
Engineer
Not in source
Contractor license
600619
Building & lot · PLUTO
Building class
S2
Zoning district
R6
Lot area
1,600 sq ft
Year built
1908
Units (total)
3
Units (residential)
2
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3050910045
Climate zone (IECC)
4A
Roof area (est.)
784 sq ft
HVAC tonnage (est.)
5.5 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.6515, -73.9497
Geocode confidence
95%
Geocode source
Not in source
Issued
Oct 29, 2025
Applied
Not in source
Work class
Commercial
Description
Source description

INSTALLATION OF HVAC UNITS AT EXISTING 3-STORY MIXED-USE BUILDING. IN CONJUNCTION WITH DOB#B01142897-I1 (GC). TO OBTAIN EQ USE PERMITS (CERT. OF COMPLIANCE). NO CHANGE IN USE, EGRESS, AND OCCUPANCY UNDER THIS JOB.

Status
Current status
finaled
Source status
Signed-off
Finaled
Oct 24, 2025
Expired
May 4, 2026
Provenance
First seen by PermitCore
May 2, 2026 · 09:44 UTC
Last seen
May 12, 2026 · 00:01 UTC
Last changed
May 2, 2026 · 09:44 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 3050910045) · Oct 25, 2002 – Oct 29, 2025

  1. Oct 29, 2025This permitMEP Mechanical HVAC · Finaled$20,000Sin Do Construction INC
  2. Nov 25, 2024950051931Alteration Commercial · Finaled$8,000Sin Do Construction INC
  3. Oct 25, 2002legacy_jobs:958219Alteration Commercial · Finaled$24,000
  4. Oct 25, 2002legacy_jobs:958228Alteration Commercial · Finaled$24,000
  5. Oct 25, 20021595842Other · IssuedKornam Design & Build
  6. Oct 25, 20021595829Construction Equipment · IssuedKornam Design & Build
  7. Oct 25, 20021595845MEP Mechanical HVAC · IssuedKornam Design & Build

Full permit history at this parcel · as of Jul 19, 2026.

Other permits by Sin Do Construction INC

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Developer details
Permit #
429477238|Mechanical Systems
Canonical ID
1:429477238|Mechanical Systems
Source permit ID
429477238|Mechanical Systems
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