Bay Area Design–Build
ADU Construction in the Bay Area
Detached, attached, and garage-conversion ADUs — rental income and family space, fully permitted. Designed, permitted, and built for the Bay Area by one accountable, licensed team.
- Licensed & insured · CSLB #1154902
- 5.0★ rated on Google
- 35 years of Bay Area experience
- Permits & inspections handled
- Design–build under one roof
- Local to the Bay Area
Prefer to talk now? Speak with us directly:
(408) 418-9277Get your free adu construction quote
Tell us about your project — we respond promptly.
- Licensed & Insured
- CSLB #1154902
- 5.0★ on Google
- 35 Years Experience
- Permits Handled
- Design–Build
What's included
ADU Construction in the Bay Area, done right
Accessory Dwelling Units are the single best way to add value, income, or multigenerational space to a Bay Area property — and California's pro-ADU laws have made them faster to approve than almost any other project. A well-built ADU can rent for thousands a month or keep family close with independence.
- Detached new-construction ADUs
- Attached ADUs
- Garage and basement conversions
- Junior ADUs (JADUs)
- Feasibility, lot, and setback analysis
- California ADU law and local ordinance compliance
- Utility connections and Title 24 energy compliance
- Full permitting and inspections
Why homeowners choose us
Built to be the easy, accountable choice
One accountable team
Design, engineering, permits, and construction under a single roof — no finger-pointing, no gaps.
the Bay Area permits handled
We navigate every Bay Area jurisdiction so you never deal with the city counter.
Honest, fixed proposals
A detailed, fixed-scope quote after a free site visit — no vague allowances that balloon later.
In their words
What our clients say
“ODL Construction completely transformed our outdated kitchen into a modern, open-concept space.”
“Their team is detail-oriented and highly skilled — the craftsmanship speaks for itself.”
“ODL handled the permits, construction, and smart home wiring all in one streamlined process.”
How it works
A clear, managed process
- 1
Free feasibility assessment
We evaluate your lot, setbacks, utilities, and the most cost-effective ADU type — detached, attached, or conversion — and what it can realistically rent for.
- 2
Design & fixed proposal
We design the unit to California ADU law and your local ordinance, then deliver a fixed-scope proposal.
- 3
Permits (ministerial review)
We submit a compliant design for the state-mandated 60-day ministerial review and handle Title 24, utility, and any school-fee requirements.
- 4
Build
Foundation through finish for detached units, or full conversion for garages — managed on a clear schedule.
Honest pricing
Typical adu construction cost
Typical Bay Area ranges, not a quote. ADU cost is driven most by type (conversion vs. detached), size, site access, and utility connections. We give you a fixed proposal after a free feasibility visit.
Remodel now, pay monthly
Flexible financing options can make larger remodels affordable. Ask about financing when you request your quote.
Project photos for the Bay Area coming soon
We're finishing our photo gallery. Call or request a quote and we'll share relevant adu construction examples and references for your project directly.
Call (408) 418-9277ADU Construction in the Bay Area — your questions answered
How much can I rent a Bay Area ADU for?
It varies by city and size, but Bay Area ADUs frequently rent for several thousand dollars a month, which is why they often pay back the build over time. We'll talk through realistic numbers for your area during the free assessment.
How long does ADU approval take now?
California requires cities to approve code-compliant ADUs ministerially within 60 days — far faster than discretionary review. Designing to that compliant path is exactly how we keep your project moving.
Is a garage conversion or a detached ADU better?
A garage conversion is usually the cheapest and fastest; a detached ADU adds the most value and flexibility but costs more. The right answer depends on your lot, budget, and goals — we assess all of it for free.
Do I have to live on the property to build an ADU?
Current California law has relaxed owner-occupancy requirements for ADUs in most cases. We'll confirm exactly how the rules apply to your property and city.
Will an ADU increase my property taxes?
An ADU is reassessed on the added value of the new unit, not your whole property — so the tax impact is limited to the ADU itself. We can point you to the assessor's guidance for specifics.
Get your free adu construction consultation
Licensed, insured, and local to the Bay Area. Tell us about your project, or call (408) 418-9277 to speak with us now.
(408) 418-9277Request a free quote
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