A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Santa Ana, CA
An ADU in Santa Ana is a self-contained small home built on the same lot as your main house, and the city has made it easier than most Orange County cities to get one permitted. Santa Ana’s older, smaller lots with alley access make detached backyard cottages and garage conversions especially workable here. Lodgewick ADU Orange County helps homeowners plan and build accessory dwelling units, garage conversions, and room additions under The Kingswell Guarantee: a written price before work starts, a defined arrival window, a clean job site, and a written guarantee on every project. Call (350) 203-6060 for a free estimate.
Why Santa Ana Homes Are Different
Santa Ana’s housing stock is mostly pre-1970 single-family homes on lots between 5,000 and 7,000 square feet. Many of those homes have detached garages reached from alleys, which changes how an ADU gets designed and built. An alley-facing garage conversion can add a second entrance from the alley while the street frontage stays untouched, and in neighborhoods like Washington Square, city inspectors see this pattern regularly. Setbacks and parking requirements shape the design, but the city’s proactive ADU ordinance and pre-approved plans have made Santa Ana one of the county’s more ADU-friendly places to build.
The mild Mediterranean climate works in a homeowner’s favor: slab-on-grade foundations are common, and insulation demands stay modest. The Santa Ana winds are the wildcard. Hot, dry gusts in fall and winter push homeowners toward passive cooling, good cross-ventilation, and drought-tolerant landscaping rather than thirsty lawns. A well-placed window, a shaded entrance, and the right roof overhang make a real difference in how comfortable a backyard unit stays through those wind events.
Our Main Santa Ana Services
Three projects account for nearly every call we get from Santa Ana homeowners: room additions that extend the existing house, garage conversions that turn unused space into rentable or family housing, and complete ADU builds in the backyard or over an existing structure.
Home Addition Contractor in Santa Ana
Room additions in Santa Ana usually mean extending a pre-1970 single-story home outward or upward, and the older framing in these houses means we check how the existing foundation and roofline will carry the new load before we quote. On small lots, a bump-out or second-story addition often fits better than a wide single-story expansion, and the city’s setback rules shape that decision early. We put the written price, the arrival window, and the guarantee in writing before any work begins. Learn more about how we handle home additions in Santa Ana, including structural checks, permits, and timeline.
Garage Conversion Contractor in Santa Ana
Santa Ana’s detached alley-facing garages are some of the best conversion candidates in Orange County. A conversion turns that garage into a studio, one-bedroom, or family room with its own entrance, often opening onto the alley so the main house and its curb appeal stay unchanged. Plumbing, electrical, insulation, and a new floor are usually part of the job, and the city’s pre-approved plan path can speed up permitting. We work with the existing slab and roofline where possible to hold costs down. This is a specialty of our garage conversion work in Santa Ana, where alley access and pre-approved plans make the process smoother.
ADU Builders in Santa Ana
A detached backyard ADU on a Santa Ana lot fits well because the small-but-workable lot sizes leave room for a compact cottage while the main house keeps its yard. The city’s proactive ADU ordinance means fewer headaches with permitting compared to some neighboring jurisdictions, and alley access can simplify utility runs. Every ADU we build gets a written quote before demolition or excavation, and the 365-Day Done Right Promise stands behind the finished unit. For full details on building an ADU in Santa Ana, including lot feasibility and design options, see the dedicated page.
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 Santa Ana
We work with the leading prefab and panelized ADU manufacturers Santa Ana homeowners ask about most, including Dvele, Mighty Buildings, and Plant Prefab. Factory-built components often arrive faster than stick-built framing, and we match the system to your lot, budget, and timeline. See our brands for the full breakdown.
Pricing for ADU Company in Santa Ana, CA
| Service | Typical range in Santa Ana |
|---|---|
| Garage conversion to studio ADU | $75,000 – $120,000 |
| Detached backyard ADU (1 bed) | $180,000 – $280,000 |
| Detached backyard ADU (2 bed) | $250,000 – $380,000 |
| Garage conversion to 1-bedroom | $90,000 – $150,000 |
| Garage conversion to 2-bedroom | $130,000 – $190,000 |
| Room addition (ground floor) | $120,000 – $220,000 |
| Second-story addition | $200,000 – $350,000 |
| Home addition (bathroom) | $40,000 – $90,000 |
| Home addition (bedroom) | $50,000 – $120,000 |
| Home addition (kitchen extension) | $60,000 – $150,000 |
Prices in Santa Ana shift with the age of the existing structure, whether the lot has alley access, and how much site work the soil and setbacks demand. Every quote is a written, line-item price given before work begins, and that number does not change at the door.
Neighborhoods We Serve in Santa Ana
We work across Santa Ana, from the historic grid near downtown to the quieter streets on the city’s edges. Each area has its own rhythm: Washington Square’s alley garages, the larger lots in Floral Park, the older homes in French Park, the dense blocks of Artesia Pilar, and the mixed housing in Mabury Park.
- Washington Square
- Floral Park
- French Park
- Artesia Pilar
- Mabury Park
Response times across Santa Ana are generally fast, and scheduling dispatch is coordinated from the brand’s Los Angeles office while crews serve Santa Ana locally.
Service Area – Cities Near Santa Ana
Lodgewick ADU Orange County also serves homeowners in neighboring cities, including Tustin, CA, Costa Mesa, CA, Midway City, CA, and Anaheim, CA. If you’re just over the line from Santa Ana, call (350) 203-6060 and we’ll let you know if your address is covered.
Serving Santa Ana, CA - Our Local Coverage Area
We’re based in the Santa Ana 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 Santa Ana
Most garage conversions in Santa Ana finish in 3 to 5 months from permit submission to final inspection. A detached backyard ADU typically runs 6 to 10 months depending on site work, utility connections, and the design review timeline. Call (350) 203-6060 for a timeline specific to your lot.
Yes, a building permit is required, and the city’s pre-approved ADU plans can move a garage conversion through plan check faster than a custom design. We handle the drawings, the permit application, and the inspections for you. Call (350) 203-6060 and we’ll walk through what your specific project needs.
Every project carries the 365-Day Done Right Promise in writing. If something isn’t right within the guarantee period, we come back and make it right at no charge. That’s a written commitment delivered before work begins, not a verbal promise. Call (350) 203-6060 with any question about a build or a guarantee.
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 Santa Ana 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"A whole backyard ADU from scratch. Terrified me going in, but they kept me updated weekly and there were no nasty surprises. Quality work and a fair price."
- Noreen Fletcher"Junior ADU conversion inside the house. They protected the rest of our place with plastic and daily cleanup. Done nearly on schedule and on the number they quoted."
- Sabrina Veld
