Alteration Commercial
8504 21 Ave, Brooklyn, NY
ClassificationA2Commercial Alteration
Reliable value$23,000
ContractorNot in source
Permit record
Parties
- Contractor
- Not in source
- Applicant
- Not in source
- Owner
- Mei Chui LLC
- Architect
- Not in source
- Engineer
- Kang Wing Chan
- Contractor license
- Not in source
Building & lot · PLUTO
- Building class
- S2
- Zoning district
- C4-2
- Lot area
- 1,900 sq ft
- Year built
- 1928
- Units (total)
- 3
- Units (residential)
- 2
- Units (commercial)
- Not in source
- Floor area
- Not in source
Parcel & enrichment
- Parcel APN
- 3063460039
- Climate zone (IECC)
- 4A
- Roof area (est.)
- 839 sq ft
- HVAC tonnage (est.)
- 6 tons
- Building type
- R
- Building subtype
- OTHERS
Geocode & dates
- Coordinates
- 40.6038, -73.9955
- Geocode confidence
- 95%
- Geocode source
- Not in source
- Issued
- Aug 3, 2009
- Applied
- Jul 30, 2009
- Work class
- Commercial
Description
Source description
INSTALL 2-SET OF ROOT-TOP UNITS IN 1ST FLOOR FOR 2ND FLOOR & 3RD FLOOR RESIDENTIAL UNIT AS DRAWING. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
Status
- Current status
- finaled
- Source status
- SIGNED OFF
- Finaled
- Aug 27, 2010
Provenance
- First seen by PermitCore
- May 6, 2026 · 18:48 UTC
- Last seen
- May 15, 2026 · 05:05 UTC
- Last changed
- May 11, 2026 · 22:34 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
- Aug 3, 2009This permitAlteration Commercial · Finaled$23,000
- Aug 3, 20091000307MEP Mechanical HVAC · IssuedJc Air Tech INC
- Aug 3, 2009968998Other · IssuedJc Air Tech INC
- Aug 3, 2009legacy_jobs:1737171Alteration Commercial · Finaled$23,000
- Date not usable in source865236MEP Plumbing · IssuedKin Chi Plbg & Htg CORP
- Date not usable in source456002MEP Mechanical HVAC · IssuedRong Yip Construction CO INC
- Date not usable in source455927Other · IssuedRong Yip Construction CO INC
- Date not usable in source454362Construction Equipment · IssuedRong Yip Construction CO INC
- Date not usable in source436624Alteration Commercial · IssuedMidwood Signs INC
Full permit history at this parcel · as of Jul 18, 2026.
Developer details
- Permit #
- legacy_jobs:1674825
- Canonical ID
- 1:legacy_jobs:1674825
- Source permit ID
- legacy_jobs:1674825