ADU Construction in Marin County, CA
Jordan Mendez Construction builds attached and detached ADUs for Marin County homeowners who want more usable space on their property.
Expert ADU Construction in Marin County, CA
ADU construction in Marin County gives homeowners a practical way to add a fully independent living space without buying a new property. Jordan Mendez Construction handles new detached backyard units, attached additions, and garage conversions across Marin County and the surrounding Bay Area. Marin's residential lots vary widely in size, slope, and setback constraints, and rules can differ between unincorporated areas and incorporated towns like San Rafael, Mill Valley, and Novato. We plan each build around your specific lot conditions so the finished unit fits the property and meets local code. Whether you want space for a family member, a long-term rental unit, or a flexible guest suite, we treat the project with the same care we would give our own home. From site assessment through final walkthrough, our goal is honest communication, solid workmanship, and a result your household can rely on for years to come. Call us to talk through what your property can support.
What's included
- A fully self-contained unit adds rentable square footage to your existing Marin County lot
- Detached and attached ADU options let the build match your property's actual footprint and setbacks
- A separate living space gives aging parents or adult children private, comfortable quarters on your property
- Adding a permitted ADU increases your home's assessed value and long-term resale appeal in Marin's competitive market
- Garage and basement conversions make use of space you already own rather than requiring new ground-up construction
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ADU Construction FAQ
Common questions about adu construction in Marin County, CA.
Yes, detached ADUs are allowed on most residentially zoned lots in Marin County. The unit must meet setback, height, and size rules that can vary depending on whether your address falls in unincorporated Marin or an incorporated town.
We build new detached backyard units, attached ADUs connected to the main home, and conversions of existing garages or interior space. Each option works differently depending on your lot size and goals in Marin County.
Yes, each city and town in Marin County sets its own ADU standards, so what applies in San Rafael may differ from Novato or Mill Valley. We review the rules for your specific address before any work begins.
Yes, you can rent an ADU in Marin County as long as the rental term is longer than 30 days. Many homeowners across the county use their ADU as a long-term rental to generate steady income from their property.
No, California state law prevents HOAs from prohibiting ADU construction on lots zoned for single-family residential use in Marin County. CC&R restrictions that attempt to block an ADU are unenforceable under current state law.
An ADU is a fully independent unit with its own kitchen and bathroom, while a JADU is converted from existing interior space, is capped at 500 square feet, and may share a bathroom with the main home. Jordan Mendez Construction can help Marin County homeowners figure out which option fits their property and goals.
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Phone
(415) 990-1074Hours
- Monday 8:00 AM - 5:00 PM
- Tuesday 8:00 AM - 5:00 PM
- Wednesday 8:00 AM - 5:00 PM
- Thursday 8:00 AM - 5:00 PM
- Friday 8:00 AM - 5:00 PM
- Saturday 8:00 AM - 5:00 PM
- Sunday 10:00 AM - 2:00 PM