Permit Record

Alteration Commercial

104 Underhill Avenue, Brooklyn, NY 11238

ClassificationALMultifamily Alteration
Reliable valueNot in source
ContractorMfa →
Permit record
Parties
Contractor
Mfa
Applicant
Martin Horwitz
Owner
Housing Preservation & Developme
Architect
Not in source
Engineer
Not in source
Contractor license
0005208
Building & lot · PLUTO
Building class
C0
Zoning district
R6B
Lot area
1,368 sq ft
Year built
1899
Units (total)
3
Units (residential)
3
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3011520051
Climate zone (IECC)
4A
Roof area (est.)
713 sq ft
HVAC tonnage (est.)
5 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.6775, -73.9658
Geocode confidence
95%
Geocode source
Not in source
Issued
Feb 21, 2002
Applied
Feb 21, 2002
Work class
Residential
Status
Current status
issued
Source status
ISSUED
Expired
Oct 29, 2002
Provenance
First seen by PermitCore
May 2, 2026 · 17:12 UTC
Last seen
Jul 17, 2026 · 02:39 UTC
Last changed
May 3, 2026 · 03:50 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

18 permits at this parcel (parcel 3011520051) · through Jun 6, 2016

  1. Jun 6, 20163178926Other · IssuedQuixotic Systems INC
  2. Apr 12, 20163148507Other · IssuedQuixotic Systems INC
  3. Apr 12, 2016legacy_jobs:2627436Alteration Residential · Finaled$27,105
  4. Mar 11, 2003780414Alteration Commercial · IssuedMfa
  5. Mar 11, 2003780142Construction Equipment · IssuedMfa
  6. Mar 11, 2003legacy_jobs:889098Alteration Residential · Finaled$150,000
  7. Mar 11, 2003legacy_jobs:923890Alteration Residential · Finaled$150,000
  8. Sep 9, 20021571625MEP Plumbing · IssuedS & J Industrial CORP
  9. Feb 21, 2002This permitAlteration Commercial · IssuedMfa
  10. Feb 21, 2002756912Construction Equipment · IssuedMfa
  11. Date not usable in source915579Construction Equipment · IssuedSiding_construction CORP
  12. Date not in sourcelegacy_jobs:923893Alteration Residential · Finaled
  13. Date not in sourcelegacy_jobs:923882Alteration Residential · Finaled
  14. Date not in sourcelegacy_jobs:923891Alteration Residential · Finaled
  15. Date not in sourcelegacy_jobs:889100Alteration Residential · Pending
  16. Date not in sourcelegacy_jobs:923892Alteration Residential · Pending
  17. Date not in sourcelegacy_jobs:889101Alteration Residential · Finaled
  18. Date not in sourcelegacy_jobs:889099Alteration Residential · Finaled

Full permit history at this parcel · as of Jul 18, 2026.

Other permits by Mfa

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Developer details
Permit #
756965
Canonical ID
1:756965
Source permit ID
756965
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