Alteration Residential
421-423 S Union Dr, Los Angeles, CA 90017
ClassificationBldg-Alter/Repair - ApartmentMultifamily Alteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
- Contractor
- Not in source
- Applicant
- Not in source
- Owner
- Not in source
- 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
- 5153005012
- Climate zone (IECC)
- 3B
- 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
- Apartment
Geocode & dates
- Coordinates
- 34.0586, -118.2679
- Geocode confidence
- 100%
- Geocode source
- Not in source
- Issued
- Jan 30, 2026
- Applied
- Not in source
- Work class
- Residential
Description
Source description
SUPPLEMENTAL PERMIT TO PERMIT #21016-20001-17129 TO: CHANGE THE CONTRACTOR INFORMATION TO READ "LMR HOME IMPROVEMENT"
Status
- Current status
- finaled
- Source status
- Permit Finaled
Provenance
- First seen by PermitCore
- May 4, 2026 · 17:15 UTC
- Last seen
- Jul 7, 2026 · 17:21 UTC
- Last changed
- May 4, 2026 · 17:15 UTC
Data-quality checks1 of 12 flagged
1 of 12 data-quality checks flagged on this permit. Detail below.
- Valuation is placeholder
valuation_usd_is_placeholdervaluation_usd matched a known placeholder (often 0 or 1) used by the source when the real valuation wasn't reported.
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
Project timeline at this parcel
- Jan 30, 2026This permitAlteration Residential · Finaled
- Mar 25, 202521016-20001-17129Alteration Residential · Finaled
- Mar 25, 202520016-20001-12635Alteration Residential · Finaled
- Dec 2, 202121016-20000-17129ADU · Finaled$32,000
- Dec 2, 202120016-20000-12635ADU · Finaled$20,000
- Jul 2, 201515016-30000-13792Alteration Residential · Finaled$1,000
- Aug 26, 200303016-10000-16961Alteration Residential · Expired$300
- Aug 26, 200303016-10000-16976Alteration Residential · Expired$301
Full permit history at this parcel · as of Jul 9, 2026.
Developer details
- Permit #
- 21016-10002-17129
- Canonical ID
- 10:21016-10002-17129
- Source permit ID
- 21016-10002-17129