Permit Record

Building permit

421 Smith Street, Brooklyn, NY 11231

ClassificationOTMultifamily Alteration
Reliable valueNot in source
ContractorClear Communications Group →
Permit record
Parties
Contractor
Clear Communications Group
Applicant
Mark Malick
Owner
South Brooklyn Mutual LP
Architect
Not in source
Engineer
Not in source
Contractor license
0011225
Building & lot · PLUTO
Building class
C1
Zoning district
M1-4/R6B
Lot area
2,405 sq ft
Year built
1931
Units (total)
8
Units (residential)
8
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
3004680002
Climate zone (IECC)
4A
Roof area (est.)
1,539 sq ft
HVAC tonnage (est.)
10.5 tons
Building type
R
Building subtype
Not in source
Geocode & dates
Coordinates
40.6776, -73.9964
Geocode confidence
95%
Geocode source
Not in source
Issued
Apr 4, 2001
Applied
Apr 4, 2001
Work class
Not in source
Status
Current status
issued
Source status
ISSUED
Expired
Dec 1, 2001
Provenance
First seen by PermitCore
May 2, 2026 · 14:34 UTC
Last seen
Jul 17, 2026 · 16:59 UTC
Last changed
May 2, 2026 · 14:34 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

31 permits at this parcel (parcel 3004680002) · through Oct 16, 2023

  1. Oct 16, 2023883311548Other · Finaled$59,000Watch Hill Wireless Solu
  2. Jan 9, 20193546814Other · IssuedAvante Contracting CORP
  3. Jan 9, 20193546813MEP Mechanical HVAC · IssuedAvante Contracting CORP
  4. Jan 8, 20193515743MEP Plumbing · IssuedKatan P & H INC
  5. Oct 11, 20183637424Alteration Commercial · IssuedKatan P & H INC
  6. Oct 11, 2018legacy_jobs:3073973Alteration Residential · Finaled$1,000
  7. Apr 6, 20173347542Other · IssuedAvante Contracting CORP
  8. Apr 6, 20173347543MEP Mechanical HVAC · IssuedAvante Contracting CORP
  9. Mar 6, 2017legacy_jobs:2794440Alteration Residential · Issued$10,000
  10. Mar 6, 20173327100Other · IssuedCrosslink Wireless LLC
  11. Mar 6, 2017legacy_jobs:2794431Alteration Residential · Issued$10,000
  12. Oct 28, 20163262069MEP Plumbing · IssuedKatan P & H INC
  13. Oct 28, 2016legacy_jobs:2633725Alteration Residential · Finaled$518,500
  14. Oct 28, 2016legacy_jobs:2633716Alteration Residential · Finaled$518,500
  15. Jul 26, 2016legacy_jobs:2707630Temporary · Issued
  16. Jul 26, 20163207813Construction Equipment · IssuedAdvanced Construction Equ
  17. Jul 26, 2016legacy_jobs:2707639Temporary · Issued
  18. Jul 5, 20163195658MEP Mechanical HVAC · IssuedAvante Contracting CORP
  19. Jul 5, 20163195659Other · IssuedAvante Contracting CORP
  20. Aug 23, 20102293719Other · IssuedRamapo Communication CORP
  21. Aug 23, 2010legacy_jobs:1867191Alteration Residential · Finaled$28,000
  22. Aug 23, 2010legacy_jobs:1799564Alteration Residential · Finaled$28,000
  23. Apr 4, 2001This permitOther · IssuedClear Communications Group
  24. Apr 4, 20011383208MEP Mechanical HVAC · IssuedClear Communications Group
  25. Apr 4, 2001legacy_jobs:919559Alteration Commercial · Finaled$40,000
  26. Apr 4, 2001legacy_jobs:884978Alteration Commercial · Finaled$40,000
  27. Jun 13, 2000501256Alteration Commercial · IssuedRende Contracting CORP.
  28. Date not usable in source1271647MEP Plumbing · IssuedRo-Sal Plg. & Htg
  29. Date not usable in source1193272Alteration Commercial · IssuedRende Contracting CORP.
  30. Date not usable in source947621Other · IssuedPuar General Construction INC
  31. Date not in sourcelegacy_jobs:2633726Alteration Commercial · Finaled$73,000

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

Other permits by Clear Communications Group

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Developer details
Permit #
1383194
Canonical ID
1:1383194
Source permit ID
1383194
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