Permit Record

MEP Mechanical HVAC

314 Degraw Street, Brooklyn, NY 11231

ClassificationHVAC / Mechanical
Reliable valueNot in source
ContractorH&z Building Consulting I →
Permit record
Parties
Contractor
H&z Building Consulting I
Applicant
Hanjun Bai
Owner
Se Realty Holdings 1 LLC
Architect
Not in source
Engineer
Not in source
Contractor license
0616907
Building & lot · PLUTO
Building class
R1
Zoning district
R6B
Lot area
2,400 sq ft
Year built
1920
Units (total)
4
Units (residential)
4
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3004210012
Climate zone (IECC)
4A
Roof area (est.)
689 sq ft
HVAC tonnage (est.)
10 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.6835, -73.9947
Geocode confidence
95%
Geocode source
Not in source
Issued
Sep 23, 2019
Applied
Sep 23, 2019
Work class
Residential
Status
Current status
issued
Source status
ISSUED
Expired
Jan 27, 2020
Provenance
First seen by PermitCore
May 2, 2026 · 16:36 UTC
Last seen
Jul 17, 2026 · 02:33 UTC
Last changed
May 2, 2026 · 16:36 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

19 permits at this parcel (parcel 3004210012) · Feb 11, 2019 – Sep 23, 2019

  1. Sep 23, 2019This permitMEP Mechanical HVAC · IssuedH&z Building Consulting I
  2. Sep 23, 20193689709Other · IssuedH&z Building Consulting I
  3. Aug 30, 20193681859Other · IssuedSunlight Construction Aa
  4. May 22, 2019legacy_jobs:3101487Alteration Commercial · Finaled$844,000
  5. May 22, 2019197685MEP Plumbing · IssuedFull Circle Plumbing CORP
  6. May 7, 20191576756MEP Mechanical HVAC · IssuedH&z Building Consulting I
  7. May 7, 20191576671Other · IssuedH&z Building Consulting I
  8. Feb 11, 20191033704Other · IssuedSunlight Construction Aa
  9. Feb 11, 2019legacy_jobs:3103834Alteration Commercial · Finaled$128,600
  10. Date not in sourcelegacy_jobs:3100587Alteration Commercial · Issued$844,000
  11. Date not in sourcelegacy_jobs:3169072Temporary · Finaled
  12. Date not in sourcelegacy_jobs:3095936Alteration Commercial · Disapproved$844,000
  13. Date not in sourcelegacy_jobs:3043714Alteration Commercial · Issued$844,000
  14. Date not in source450225Other · PendingH&z Building Consulting I
  15. Date not in sourcelegacy_jobs:3095927Alteration Commercial · Disapproved$844,000
  16. Date not in sourcelegacy_jobs:3103865Alteration Commercial · Issued$98,000
  17. Date not in sourcelegacy_jobs:3112832Alteration Commercial · Pending$60,000
  18. Date not in sourcelegacy_jobs:2160514Temporary · Disapproved
  19. Date not in sourcelegacy_jobs:3093724Alteration Commercial · Issued$844,000

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

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Developer details
Permit #
3689711
Canonical ID
1:3689711
Source permit ID
3689711
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