ADU Company in Santa Ana — Design, Permits and Build Under One Contract

We handle the design, the engineering, and the city permit, then build it. One contract, one crew, one accountable point of contact. Free feasibility check on your lot before you commit.

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ADU Company in Santa Ana, CA

Kitchen remodeling in Santa Ana usually means working inside a 1920s-to-1960s stucco bungalow or Spanish-style tract home where the original galley kitchen was built for a different era. We handle the full scope: layout changes, new cabinetry, countertops, flooring, lighting, and the plumbing and electrical upgrades these older homes typically need. If you’re planning a kitchen remodel here, you’re likely also weighing an ADU, a bathroom refresh, or both – and coordinating those under one contract changes the math. Call (844) 978-0086 for a free estimate on any of it.

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Why Santa Ana Homes Are Different

Santa Ana’s housing stock is dominated by single-story stucco bungalows and Spanish-style tract homes built between the 1920s and 1960s. Many sit on narrow, deep lots in older working-class neighborhoods like those in 92701, 92703, and 92704. That geometry shapes every project: kitchens are often small, centrally located, and load-bearing on at least one wall, which means layout changes require beam work. A high share of these homes still run on 100-amp electrical panels, and the original sewer laterals are often undersized for today’s fixtures.

Then there’s the climate. Santa Ana gets hot, dry, windy conditions – the Santa Ana winds are real and seasonal. East-facing or unshaded rear kitchens bake in summer, so ventilation, window placement, and cooling strategy are part of the design conversation, not an afterthought. The wind events also mean we pay closer attention to roof penetration flashing and exterior vent termination. Coastal OC cities a few miles west don’t think about those details the same way.

One more local reality: detached single-car garages facing rear alleys are common here, and many homeowners want to convert them into ADUs while also updating the main house. That means the kitchen remodel often runs parallel to an ADU build on the same lot, with shared electrical service and sewer tie-ins. We plan for both at once.

Our Main Santa Ana Services

Most Santa Ana homeowners reach out to us about one of two things: building an ADU on a lot that’s tighter than anything in south OC, or remodeling a bathroom in a house that’s old enough to have original cast-iron plumbing. Here’s how each works here.

ADU Builders in Santa Ana

Santa Ana was among the earliest cities in Orange County to ease parking and setback rules for accessory dwelling units, which opened the door for rear-yard and garage-conversion ADUs across 92703 and 92704. The catch is that many detached garages facing alleys were built before modern codes, and crews routinely find the existing slab and framing can’t be reused – and the sewer lateral runs under a shared driveway. That turns a “simple conversion” into a full rear-yard build, which is exactly the kind of project we handle from foundation through finished kitchen and bath. See how we approach it on our ADU Builders in Santa Ana page.

ADU Builders in Santa Ana

Bathroom Remodeling in Santa Ana

Older Santa Ana bungalows often have a single bathroom with a 60-amp-era electrical feed and galvanized supply lines that have narrowed to half their original diameter. Bathroom remodels here are less about aesthetic preference and more about replacing what’s failing behind the walls. We take the room down to studs, re-pipe and re-wire what’s needed, then rebuild with solid waterproofing and ventilation suited to Santa Ana’s dry heat. See Bathroom Remodeling in Santa Ana for the full scope.

Bathroom Remodeling in Santa Ana
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What happens when you call

  1. 1
    A real person answersNo phone trees — you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Kitchen Remodeling in Santa Ana

A kitchen remodel in Santa Ana’s 1920s-1960s homes is usually a reconfiguration job, not a facelift. The original kitchens were built small and closed off, before open-plan living, before modern appliance dimensions, and long before 200-amp service was standard. Combine that with the hot, dry Santa Ana climate – east-facing kitchens here can become ovens by midafternoon – and the work becomes about layout, ventilation, and electrical capacity, not just new cabinets. Kitchen Remodeling is one of the most effective uses of renovation budget in these older homes, and it pairs naturally with the ADU and bathroom work we do across the city.

Full Kitchen Renovation

Signs you need it

The layout can’t support two people working at once, cabinet boxes are delaminating, the floor has soft spots, or your electrical panel can’t handle a modern range and hood.

What it costs in Santa Ana

A full kitchen renovation in Santa Ana typically lands between $30,000 and $65,000 depending on finish level, layout changes, and whether we’re moving plumbing or gas lines.

How we do it

We start with a site walk to measure structural conditions and panel capacity, produce a fixed-price quote with line items, then handle demo, rough plumbing and electrical, drywall, flooring, cabinetry, counters, tile, and finish work.

Kitchen Updates and Targeted Remodel

Signs you need it

The layout works but surfaces are worn, the lighting is poor, the sink and faucet are dated, and you want a better kitchen without moving walls.

What it costs in Santa Ana

Targeted kitchen updates here generally run between $15,000 and $25,000 when we’re replacing counters, a sink and faucet, a backsplash, fixtures, and adding under-cabinet lighting.

How we do it

We keep the existing cabinet boxes where they’re sound, replace doors and drawer fronts as needed, install new counters and tile, swap plumbing fixtures, improve lighting, and paint – usually in one to two weeks.

What Kitchen Remodeling Costs in Santa Ana

Item Typical range in Santa Ana
Full kitchen renovation $30,000 – $65,000
Targeted kitchen update $15,000 – $25,000
Counter plus sink and faucet replacement $4,000 – $8,500

How long does a kitchen remodel take in Santa Ana?

A full kitchen remodel here runs four to seven weeks; a targeted update runs one to two. Older homes sometimes add a few days for panel and plumbing surprises, which is why we always check those first. Call (844) 978-0086 for a schedule based on your actual scope.

Do I need a panel upgrade for my Santa Ana kitchen?

If your home still has a 100-amp panel and you’re adding a modern range, hood, and dedicated appliance circuits, yes, a panel upgrade is usually required and we include it in the quote when needed. We’ll confirm with a load calculation before work starts, so the price doesn’t move later. Call (844) 978-0086 for a free estimate.

Brands We Service in Santa Ana

We service and build with multiple leading ADU systems – our brands include Abodu, Cover, Dvele, Mighty Buildings, Boxabl, Plant Prefab, and Tuff Shed. We also spec James Hardie exterior cladding as a material standard on our builds. For Santa Ana homeowners, having options means we can match a system to a narrow lot or an alley-access garage site instead of forcing one product onto every property.

Pricing for ADU Company in Santa Ana, CA

Service Typical range in Santa Ana
Full kitchen renovation $30,000 – $65,000
Targeted kitchen update $15,000 – $25,000
Counter plus sink and faucet replacement $4,000 – $8,500
Bathroom remodel (full) $18,000 – $40,000
Bathroom refresh (surface-level) $9,000 – $18,000
ADU construction (prefab or modular) $180,000 – $350,000
ADU construction (site-built) $250,000 – $400,000+
Kitchen remodeling $15,000 – $65,000
Bathroom remodeling $9,000 – $40,000

Two things push price up in Santa Ana: panel upgrades on pre-1960 homes with 100-amp service, and sewer-lateral or drainage tie-ins when the existing line runs under a shared driveway or is undersized for the new fixtures. We quote these as line items up front – fixed price, no change orders on scope we’ve agreed to.

Neighborhoods We Serve in Santa Ana

We work across Santa Ana, from the older single-story blocks in 92701 and 92703 to the alley-fronting garage lots in 92704 and the neighborhoods around 92707. Response time for estimates across the city is typically one to two business days.

  • Downtown Santa Ana (92701)
  • Delhi (92703)
  • Bristol Manor (92704)
  • Mabury Park (92703)
  • Lacy (92703)

Service Area – Cities Near Santa Ana

Osprey ADU Builders has served Santa Ana since 2011, and our service area reaches into the neighboring communities of Tustin, CA, North Tustin, CA, Fountain Valley, CA, and Orange, CA. If you’re near any of these cities, our Santa Ana crews and vendors can reach your job without the scheduling delays that come from working too far outside our core area.

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

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Call (844) 978-0086

What happens when you call

  1. 1
    A real person answersNo phone trees — talk to a local adu pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Santa Ana Customers Say

★★★★★ 5.0 from 4+ reviews

"He was honest that our lot had a slope problem that would add real cost, before we signed anything."

— Rosa Reyes

"Detached unit in the back yard. Utilities trenched, separate meter, and it passed final on the first inspection."

— Mark Delaney

"Sound insulation between the unit and the main house is better than I expected. You genuinely cannot hear the tenant."

— Ramon Flores

How It Works in Santa Ana

Getting your adu handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your adu needs and we provide an upfront, transparent quote — no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Santa Ana — typically within 30–60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

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