Permit Record

Building permit

317 3 Ave, Brooklyn, NY 11215

ClassificationOT
Reliable valueNot in source
ContractorKnockout Construction INC →
Permit record
Parties
Contractor
Knockout Construction INC
Applicant
Martin McMahon
Owner
Trestle Brooklyn,llc
Architect
Not in source
Engineer
Not in source
Contractor license
0023694
Building & lot · PLUTO
Building class
K4
Zoning district
M1-4/R6B
Lot area
4,000 sq ft
Year built
1931
Units (total)
2
Units (residential)
0
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3004540001
Climate zone (IECC)
4A
Roof area (est.)
5,800 sq ft
HVAC tonnage (est.)
14.5 tons
Building type
M
Building subtype
Not in source
Geocode & dates
Coordinates
40.6764, -73.9869
Geocode confidence
95%
Geocode source
Not in source
Issued
Aug 14, 2014
Applied
Aug 14, 2014
Work class
Not in source
Status
Current status
issued
Source status
ISSUED
Expired
Apr 17, 2015
Provenance
First seen by PermitCore
May 2, 2026 · 15:50 UTC
Last seen
Jul 17, 2026 · 18:00 UTC
Last changed
May 2, 2026 · 15:50 UTC

Open in New York City source →

Data-quality checks1 of 12 flagged

1 of 12 data-quality checks flagged on this permit. Detail below.

Residential units is placeholder
units_residential_is_placeholder

units_residential matched a known placeholder value used by the source when the field wasn't reported.

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
  • Total units out of bounds
  • Total units is placeholder
  • Valuation out of bounds
  • Valuation is placeholder
Project timeline at this parcel

21 permits at this parcel (parcel 3004540001) · Aug 14, 2014 – Mar 7, 2025

  1. Mar 7, 2025297765644Alteration Commercial · Finaled$21,350Knockout Construction INC
  2. Oct 2, 2017legacy_jobs:2919221Alteration Commercial · Finaled$4,000
  3. Oct 2, 2017legacy_jobs:2919230Alteration Commercial · Finaled$4,000
  4. Oct 2, 20173452329MEP Mechanical HVAC · IssuedMa Engineering PC
  5. Sep 25, 20173447942MEP Mechanical HVAC · IssuedMa Engineering PC
  6. Sep 25, 2017legacy_jobs:2915785Alteration Commercial · Issued$5,000
  7. Aug 29, 20163228123Other · IssuedNew Rising Construction I
  8. Aug 5, 2016legacy_jobs:2690807Alteration Commercial · Finaled$46,000
  9. Aug 5, 20163214849MEP Plumbing · IssuedQmb Plumbing & Heating In
  10. Aug 5, 2016legacy_jobs:2632582Alteration Commercial · Finaled$46,000
  11. Aug 2, 20163211925Other · IssuedNew Rising Construction I
  12. Nov 19, 20153073158MEP Plumbing · IssuedJohn Hlad P & H CO., INC
  13. Nov 19, 2015legacy_jobs:2583124Alteration Commercial · Finaled$59,000
  14. Nov 16, 20153070835Other · IssuedMaterial Design Build LLC
  15. Nov 16, 20153070824Construction Equipment · IssuedMaterial Design Build LLC
  16. Jan 22, 2015legacy_jobs:2341269Alteration Commercial · Finaled$44,000
  17. Jan 22, 2015legacy_jobs:2281759Alteration Commercial · Finaled$44,000
  18. Jan 22, 20152912723MEP Plumbing · IssuedInfiniti Esc Plumbing Cor
  19. Aug 14, 20142838816MEP Mechanical HVAC · IssuedKnockout Construction INC
  20. Aug 14, 20142838808Construction Equipment · IssuedKnockout Construction INC
  21. Aug 14, 2014This permitOther · IssuedKnockout Construction INC

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

Other permits by Knockout Construction INC

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

No other permits by this contractor in the indexed window.
Developer details
Permit #
2838812
Canonical ID
1:2838812
Source permit ID
2838812
Browse New York City permits in the Market Explorer →Pull this permit via /v1/permits →