Alteration Commercial
309 Prospect Pl, Brooklyn, NY 11238
ClassificationALMultifamily Alteration
Reliable valueNot in source
ContractorIfathom Construction CORP →
Permit record
Parties
- Contractor
- Ifathom Construction CORP
- Applicant
- Panagiotis Gerolimatos
- Owner
- 309 Prospect Blaz LLC
- Architect
- Not in source
- Engineer
- Not in source
- Contractor license
- 0600611
Building & lot · PLUTO
- Building class
- RM
- Zoning district
- R6B
- Lot area
- 2,322 sq ft
- Year built
- 1931
- Units (total)
- 5
- Units (residential)
- 4
- Units (commercial)
- Not in source
- Floor area
- Not in source
Parcel & enrichment
- Parcel APN
- 3011520059
- Climate zone (IECC)
- 4A
- Roof area (est.)
- 595 sq ft
- HVAC tonnage (est.)
- 9 tons
- Building type
- R
- Building subtype
- Not in source
Geocode & dates
- Coordinates
- 40.6772, -73.9666
- Geocode confidence
- 95%
- Geocode source
- Not in source
- Issued
- Feb 18, 2020
- Applied
- Feb 18, 2020
- Work class
- Residential
Status
- Current status
- issued
- Source status
- ISSUED
- Expired
- Oct 3, 2020
Provenance
- First seen by PermitCore
- May 2, 2026 · 16:39 UTC
- Last seen
- Jul 17, 2026 · 02:33 UTC
- Last changed
- May 3, 2026 · 03:34 UTC
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
- Jul 9, 20213860582MEP Plumbing · IssuedEh Plumbing & Heating Cor
- Oct 5, 20203794873Alteration Commercial · IssuedSteering House Construct
- Sep 24, 20203792304Alteration Commercial · IssuedSteering House Construct
- Aug 14, 2020legacy_jobs:3118289Alteration Commercial · Finaled$845,034
- Aug 14, 20203781914MEP Plumbing · IssuedA&h Express Plbg & Htg CO
- Mar 6, 2020legacy_jobs:3161249Alteration Commercial · Finaled
- Mar 6, 2020legacy_jobs:3161258Alteration Commercial · Finaled
- Feb 18, 2020This permitAlteration Commercial · IssuedIfathom Construction CORP
- Date not in sourcelegacy_jobs:3308200Temporary · Finaled
- Date not in sourcelegacy_jobs:2880354Alteration Commercial · Finaled
- Date not in sourcelegacy_jobs:3308208Temporary · Finaled
- Date not in sourcelegacy_jobs:2937834Alteration Commercial · Finaled
- Date not in sourcelegacy_jobs:2880345Alteration Commercial · Finaled
- Date not in sourcelegacy_jobs:3309634Temporary · Finaled
Full permit history at this parcel · as of Jul 9, 2026.
Other permits by Ifathom Construction CORP
Developer details
- Permit #
- 3737317
- Canonical ID
- 1:3737317
- Source permit ID
- 3737317