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New construction · Los Angeles

How does hillside zoning affect new construction in Los Angeles?

Hillside parcels in Los Angeles carry slope-based limits on FAR, retaining walls, grading export, and access. LA's Hillside Ordinance applies to roughly 17% of parcels and adds slope-band FAR caps, retaining-wall height limits, and stricter export limits.

What changes the answer in Los Angeles.

LA's Hillside Ordinance applies to roughly 17% of parcels and adds slope-band FAR caps, retaining-wall height limits, and stricter export limits. Grading >50 cy or any cut/fill on Hillside-zoned parcels triggers a separate grading permit and geotech review. LID (Low Impact Development) stormwater plan is required for new SFRs. Narrow hillside streets and red-curb restrictions often require Temporary Street Use permits from LADOT for material deliveries, dumpsters, and pump trucks.

  • LA's Hillside Ordinance applies to roughly 17% of parcels and adds slope-band FAR caps, retaining-wall height limits, and stricter export limits.
  • Grading >50 cy or any cut/fill on Hillside-zoned parcels triggers a separate grading permit and geotech review. LID (Low Impact Development) stormwater plan is required for new SFRs.
  • Narrow hillside streets and red-curb restrictions often require Temporary Street Use permits from LADOT for material deliveries, dumpsters, and pump trucks.
  • Soils range from competent alluvium in the basin to expansive clays in the foothills and engineered fill in older hillside cuts; geotech reports are standard for any custom home.

Source-backed note

Los Angeles Department of Building & Safety (LADBS) applies the local hillside ordinance at plan check; a geotechnical report and grading plan are typically required.

Local authority: Los Angeles Department of Building & Safety (LADBS)

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