A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Strawberry, CA
Adding living space in Strawberry means working with Marin County’s environmental rules, steep hillside lots, and homes built between the 1950s and 1970s that were never designed for an ADU. Lodgewick ADU San Francisco handles accessory dwelling units, garage conversions, and home additions here with written pricing before any work starts, and our 365-Day Done Right Promise says we come back if the work isn’t right. The biggest surprise for most Strawberry homeowners is that permits go through Marin County, not Mill Valley. Call (707) 760-0502 to schedule a free estimate.
Why Strawberry Homes Are Different
Strawberry is an unincorporated community on Richardson Bay, which means Marin County oversees permitting and environmental review. That adds time to any ADU or addition, and it changes what gets approved. Steep, narrow lots with older wood-framed homes present real foundation and access challenges. Many of these hillside properties sit on slopes where getting equipment and materials to the build site takes planning most flatland contractors never have to do.
Drainage is a bigger deal here than in flatter parts of the Bay Area. Winter rains saturate hillside soil, and an ADU with poor drainage or erosion control becomes a slow-moving problem for the main house. We factor in the lot’s slope, the direction water flows, and where the septic system sits before we price anything. Fire-resistant materials and defensible space requirements also shape what Marin County will approve, especially on the more heavily vegetated lots.
Our Main Strawberry Services
Most Strawberry homeowners call us about one of three projects: a home addition, a garage conversion, or a freestanding ADU. Each one has its own dedicated page with local pricing and details.
Home Addition Contractor in Strawberry
A home addition in Strawberry often means building up or out on a hillside lot where the foundation was poured in the 1960s and the access road is a single lane. We start every addition with a structural review of the existing foundation, because adding a second story to a wood-framed hillside home is not a cosmetic project. Water drainage and retaining walls usually factor into the plan. Russ Delmar leads the crew here, and every addition gets a written price before we break ground. See Home Addition Contractor in Strawberry for full details.
Garage Conversion Contractor in Strawberry
A garage conversion in Strawberry turns an underused garage into a bedroom, office, or small rental unit without changing the home’s footprint. The catch in Strawberry is that many garages sit at or below grade, which means moisture control and insulation details matter more than they would in a drier inland lot. We pull Marin County permits, handle the drainage work, and put the finish schedule in writing. Jim Shaver oversees garage work. Learn more on the Garage Conversion Contractor in Strawberry page.
ADU Builders in Strawberry
Freestanding ADUs in Strawberry sit on sloped terrain with septic and fire-safety review that most cities never require. We work with prefab builders like Abodu and Cover when the lot allows, and stick-built ADUs when the grade calls for a custom foundation. Every ADU gets a written price before work begins and the 365-Day Done Right Promise in writing. See ADU Builders in Strawberry for the full breakdown.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Strawberry
We work with Tuff Shed, Abodu, James Hardie, and Cover across our Strawberry builds. Prefab shells from Abodu and Cover arrive in weeks after the foundation passes inspection, and we handle the site work, permits, and finish-out. Learn more on our brands page.
Pricing for ADU Company in Strawberry, CA
Strawberry pricing runs higher than flatland Bay Area cities because of slope work, drainage, and Marin County permit timelines. Here are the ranges we typically see on Strawberry projects.
| Service | Typical range in Strawberry |
|---|---|
| Prefab ADU (Abodu, Cover, or similar) | $180,000 – $320,000 |
| Custom stick-built ADU | $250,000 – $475,000 |
| Garage conversion (attached) | $90,000 – $185,000 |
| Garage conversion (detached) | $140,000 – $250,000 |
| Home addition, single room | $110,000 – $210,000 |
| Home addition, master suite | $180,000 – $330,000 |
| Foundation and slope work | $35,000 – $95,000 |
| Drainage and erosion control | $12,000 – $45,000 |
| Fire-resistant siding (James Hardie) | $18,000 – $55,000 |
| Septic system upgrade or tie-in | $20,000 – $60,000 |
Slope work and septic upgrades push Strawberry prices up compared to flat areas, and Marin County review times can mean more design iterations. What never changes is our price: we put a written number in front of you before any work starts, and the price doesn’t move once we begin.
Neighborhoods We Serve in Strawberry
We work throughout Strawberry and the surrounding unincorporated areas, from the waterfront streets near Richardson Bay up the hillside lanes. Crews are dispatched from our San Francisco Bay Area office and typically arrive within a single scheduled arrival window.
- Strawberry Point
- Golden Gate Avenue area
- Belvedere Drive hillside
- Reed Ranch Road corridor
- Lower Strawberry near Tiburon Boulevard
Service Area – Cities Near Strawberry
Beyond Strawberry, Lodgewick ADU San Francisco serves nearby Alameda and Contra Costa communities. We handle ADUs and additions in Hayward, CA, Martinez, CA, Moraga, CA, and Orinda, CA. Each city has its own permitting process, and we manage that end-to-end.
Serving Strawberry, CA - Our Local Coverage Area
We’re based in the Strawberry area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About ADU Company in Strawberry
Plan on four to eight months for Marin County permit review on an ADU in Strawberry, longer if septic or slope review is triggered. We handle the submittal and respond to county comments as they come. Call (707) 760-0502 and we’ll walk you through the timeline for your specific lot.
Lodgewick ADU San Francisco coordinates from our Bay Area office, and Russ Delmar leads the Strawberry projects. The crews are background-checked and uniformed, and you’ll see the same faces throughout the job, not rotating subs.
Yes. Every Strawberry project we take on includes Marin County permits, inspections, and final sign-off. We don’t do unpermitted work, which is common in some unincorporated areas but creates problems when you sell or refinance. Call (707) 760-0502 to schedule a free estimate.
Ready to talk about your Strawberry project? Call (707) 760-0502 and we’ll give you a straight answer on pricing, permits, and timeline. The estimate is free, and the price we quote is the price you’ll pay, in writing, before any work starts.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Strawberry Customers Say
"The ADU came out beautiful and the permitting, which terrified me, was handled start to finish. They kept me updated every week so I was never wondering what was happening."
- Shauna Mills"Turned our detached garage into a little guest house. Clean crew, respectful of the neighbors, and no mystery charges at the end. Love how it turned out."
- Carmela Fontes"I was nervous about adding on but they walked me through every step and every cost before we started. No surprise change orders halfway through like I'd heard horror stories about."
- Eleanor Pratt
