Polestar designs, permits, and builds detached homes, garage conversions, and additions across Southern California, with one accountable team guiding you from first sketch to keys. We’ll even help you finance it, so your ADU can start paying for itself.
Whatever shape your project takes, one Polestar team carries it from first drawing to final key.
Most builds fracture the moment the designer hands off to the contractor. We keep it easy with four commitments that hold from first sketch to final key.
Design and construction under a single contract so nothing falls between a designer and a builder.
Fixed-price contracts. The number we agree on is the number you pay; changes only in writing.
We know every planning counter in our service area and clear plan-check the first time through.
Licensed trades and premium materials, backed by a 10-year workmanship warranty.
From the first phone call to the final walkthrough, you always know exactly where your project stands and what happens next.
Goals, budget, and timeline — the big questions before you commit.
We confirm what your lot, zoning, setbacks, and utilities allow.
Architectural drawings tailored to how you’ll live in the space.
A transparent, fixed-price proposal with every line spelled out.
We prepare, submit, and shepherd plans through every approval.
Licensed crews build to plan, with weekly updates and one lead.
Final sign-off, a full walkthrough, and the keys to your space.
The things homeowners ask us most, before the first meeting.
Our ADUs in Southern California land between $180,000 and $420,000 all-in, depending on size, finishes, and site conditions. Garage conversions typically run lower. Your consultation includes a transparent, line-item estimate, never a vague per-square-foot guess.
Plan on roughly 4-6 months of construction. We hand you a milestone schedule before we break ground and keep it current at every phase.
Most single-family and many multifamily lots in California qualify under statewide ADU law. We run a free feasibility review of your lot, zoning, setbacks, and utilities before you commit to anything.
Entirely, and in-house: drawings, structural, Title 24 energy, plan-check corrections, and inspections. You never chase a city counter.
Finance with us today with $0 down. Don’t start paying until your tenant does. Visit our finance page for more information.
Frequently. A well-designed ADU in our service area can command meaningful monthly rent and often improves resale value. We design with livability and long-term return in mind.
Tell us about your property and what you have in mind. We’ll follow up within one business day… no pressure, no obligation.
