Los Angeles Department of Building and Safety provides records of mechanical permits issued from 2020 onward. The dataset includes plumbing, HVAC, fire sprinkler, elevator, and pressure vessel permits categorized by plan check status. Data is published by data.lacity.org and was last updated in March 2026.
Use Cases
- Analyze permit approval timelines by comparing SUBMITTED_DATE, ISSUE_DATE, and STATUS_DESC across different PERMIT_SUB_TYPE categories.
- Map construction activity density for mechanical systems using GEOLOCATION, LAT, LON, and ZIP_CODE fields.
- Predict permit processing complexity (Express vs. Plan Check) using features like PERMIT_TYPE, WORK_DESC, and USE_CODE.
- Identify trends in sustainable technology adoption by filtering permits with Solar or EV indicators.
- Correlate permit volume with zoning regulations by joining on ZONE, CD (Council District), and APC (Area Planning Commission) codes.
Strengths
- Includes geospatial coordinates (LAT, LON, GEOLOCATION) for mapping.
- Categorizes permits by detailed status (STATUS_DESC) and type (PERMIT_SUB_TYPE, PERMIT_GROUP).
- Tracks key dates (ISSUE_DATE, SUBMITTED_DATE, STATUS_DATE) for timeline analysis.
Limitations
- Sample size and total row count are unknown.
- Temporal coverage is limited to records from 2020, excluding historical context.
- License and specific data collection methodology are not provided.
Provenance
- Source
- Los Angeles Department of Building and Safety, published via data.lacity.org.
- Collection Method
- Administrative records from the city's permit issuance system.
- Time Range
- 2020 to present.
- Freshness
- Updated regularly, with a recent refresh in March 2026.
- Geography
- City of Los Angeles, California, USA.