ADU & Home Design-Build Services in Orange County
Custom ADUs, garage conversions, junior ADUs, in-law suites and more — designed, permitted and built by one licensed Orange County & Los Angeles team.
Why build with L Square
Design, permits and construction under one roof. L Square is a licensed Orange County design-build team (CSLB #1095476). One contract covers architecture, engineering, city approvals and our own build crews — so your ADU moves on a fixed schedule from first drawing to final inspection, across Orange County and Los Angeles.
- 01 · Architect-grade design
- Every unit is drawn around your lot, light and privacy.
- 02 · Permit-ready, OC-savvy
- We know each city’s ADU rules and clear the approvals for you.
- 03 · Built once, built right
- Our own crews deliver on a fixed schedule, foundation to finishes.
Licensed · Insured · Bonded · CSLB #1095476 · Orange County & Los Angeles
Building an ADU in your Orange County city
ADU rules vary by city — we handle the specifics for your address. Statewide, California allows ADUs up to about 1,200 sq ft with 4-ft side and rear setbacks (CA HCD); your city may add its own details. For the statewide rules, see the CA HCD ADU Handbook.
Ready to start
your ADU?
Get a free, no-pressure quote from a licensed Orange County design-build team — and a plan drawn around your lot.
