Hill parcels add the Baseline Hillside Ordinance, geotech, and (along the ridgeline) the Mulholland Scenic Parkway Specific Plan to every permit package. The ADU itself is still ministerial, but plan-check takes longer because the structural, grading, and haul-route sheets are heavier than a flat-lot project.
What's specific to this area
☐BHO caps height to ~33 ft and limits grading cuts based on lot slope.
☐Soils / geotech report required on any slope >10%.
☐Hillside Construction Regulation permits gate haul-route hours and truck size.
☐Beverly Hills + Bel-Air HOA / R1 design review runs parallel to building permit.
On-the-ground notes
☐Baseline Hillside Ordinance caps height, grading cuts, and building footprint based on slope.
☐Mulholland Scenic Parkway Specific Plan applies along the spine — separate Director's review.
☐Beverly Hills parcels run their own R1 design review; Bel-Air HOAs review separately.