Manhattan Beach Tree Section ADU permit, cost & timeline.
Manhattan Beach Tree Section ADUs serve as luxe guest quarters or 6-figure rentals — finishes match the primary home, full stop.
Neighborhood intel
- Lot range
- 5,000–6,500 sq ft
- Zoning
- R-1
- Permit window
- 6–9 mo plan-check
- Permits last 12 mo
- ≈ 22
- Best-fit product
- Detached 1-BR; architect-grade exteriors
- Starting price
- from $295K
№ 01 — Field notes
What we've learned from ≈ 22 permits.
- Build cost runs $580–$700/sf — material-grade matches main house.
- Strict 26-ft height envelope citywide; ADUs typically stay one story.
- MB Building & Safety known for thorough first-round comments.
№ 02 — Questions
Manhattan Beach Tree Section ADU questions, answered.
What's the typical ADU rent here?
$4,200–$5,500 for an 800 sf 1-BR with private entry, fully finished.
Coastal Permit?
Not required east of Highland Ave; Tree Section is outside the appeal zone.
Two-story ADU possible?
Rarely — MB's 26-ft envelope plus design review pushes most ADUs to single-story.
№ 03 — Adjacent
Neighbors & the parent city.
Building in Manhattan Beach Tree Section? Send us the address and we'll send back lot-specific feasibility within one business day.
Begin a Manhattan Beach Tree Section ADU →