Permit Record

MEP Mechanical HVAC

9306 4 Avenue, Brooklyn, NY 11209

ClassificationHVAC / Mechanical
Reliable valueNot in source
ContractorMcDuffey & Riddick Contrs INC
Permit record
Parties
Contractor
McDuffey & Riddick Contrs INC
Applicant
Joseph McDuffey
Owner
Herman Tretter
Architect
Not in source
Engineer
Not in source
Contractor license
0004227
Building & lot · PLUTO
Building class
S2
Zoning district
R6A
Lot area
2,254 sq ft
Year built
1910
Units (total)
3
Units (residential)
2
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3061070035
Climate zone (IECC)
4A
Roof area (est.)
1,003 sq ft
HVAC tonnage (est.)
7 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.6174, -74.0306
Geocode confidence
95%
Geocode source
Not in source
Issued
Jun 21, 2004
Applied
Jun 21, 2004
Work class
Not in source
Status
Current status
issued
Source status
ISSUED
Expired
Mar 12, 2005
Provenance
First seen by PermitCore
May 2, 2026 · 14:50 UTC
Last seen
Jul 17, 2026 · 17:14 UTC
Last changed
May 2, 2026 · 14:50 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

8 permits at this parcel (parcel 3061070035) · Jun 19, 2003 – Jun 21, 2004

  1. Jun 21, 2004This permitMEP Mechanical HVAC · IssuedMcDuffey & Riddick Contrs INC
  2. Jun 21, 2004legacy_jobs:974328Alteration Commercial · Finaled$18,000
  3. Oct 23, 2003legacy_jobs:985627Alteration Residential · Finaled$3,000
  4. Oct 23, 2003legacy_jobs:985636Alteration Residential · Finaled$3,000
  5. Oct 23, 2003275420Construction Equipment · IssuedEmpire State Development LLC
  6. Oct 23, 2003legacy_jobs:948099Alteration Residential · Finaled$3,000
  7. Oct 23, 2003275512Other · IssuedEmpire State Development LLC
  8. Jun 19, 20031650262MEP Plumbing · IssuedO J Plbg & Htg INC

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

Other permits by McDuffey & Riddick Contrs INC

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Developer details
Permit #
1711590
Canonical ID
1:1711590
Source permit ID
1711590
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