Alteration Residential
6643 S Laflin St, Chicago, IL
ClassificationPERMIT - EASY PERMIT PROCESSResidential Alteration
Reliable value$1,200
ContractorNot in source
Permit record
Parties
- Contractor
- Not in source
- Applicant
- Not in source
- Owner
- Jeffer Walker
- Architect
- Not in source
- Engineer
- Not in source
- Contractor license
- Not in source
Building & lot · PLUTO
- Building class
- Not in source
- Zoning district
- Not in source
- Lot area
- Not in source
- Year built
- Not in source
- Units (total)
- Not in source
- Units (residential)
- Not in source
- Units (commercial)
- Not in source
- Floor area
- Not in source
Parcel & enrichment
- Parcel APN
- 2020118016
- Climate zone (IECC)
- 5A
- Roof area (est.)
- Not derivable — no building-size signal for this permit
- HVAC tonnage (est.)
- Not derivable — no building-size signal for this permit
- Building type
- Not in source
- Building subtype
- Not in source
Geocode & dates
- Coordinates
- 41.7728, -87.6615
- Geocode confidence
- 90%
- Geocode source
- Not in source
- Issued
- Nov 17, 2017
- Applied
- Nov 17, 2017
- Work class
- Residential
Description
Source description
SKIM COAT ACCROSS PERAPET WALL.
Provenance
- First seen by PermitCore
- May 2, 2026 · 13:02 UTC
- Last seen
- May 15, 2026 · 08:44 UTC
- Last changed
- May 5, 2026 · 04:40 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
- Nov 17, 2017This permitAlteration Residential$1,200
- Jun 16, 2017100708439Alteration Residential · Finaled$10,0005 N 1 Construction & Consultants, INC.
Full permit history at this parcel · as of Jul 8, 2026.
Developer details
- Permit #
- 100736242
- Canonical ID
- 3:100736242
- Source permit ID
- 100736242