A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Redlands, CA
Adding an ADU, converting a garage, or building a room addition in Redlands means working with a city that has real opinions about setbacks, lot coverage, and what belongs on a historic street. We’re Sutton ADU Builders, and we handle the whole thing: plans, permits, construction, and the written guarantee that follows. If you’re wondering what an ADU costs on your specific Redlands lot, call (472) 248-8213 and we’ll walk through the real numbers, not a teaser range.
Why Redlands Homes Are Different
Redlands splits into two very different construction realities. South of the 10, you have older Craftsman and Spanish Revival homes from the 1910s through the 1940s, many on smaller lots with mature trees that affect both foundation work and crane access for prefab ADU delivery. North of the 10, the homes get newer, the lots get larger, and the terrain tilts upward into the foothills, which means more grading, more retaining, and more careful drainage planning than a flat Inland Empire lot.
The city is serious about its historic districts. If your home sits in the Smiley Park or South Redlands historic areas, an ADU or addition will go through design review that looks at rooflines, window proportions, and materials, not just square footage. That can add two to six weeks to the permit path. It’s not a wall. It’s just a step we plan for from the first site visit.
Soils vary block to block. Some areas sit on sandy loam that drains well and digs easily. Others hit decomposed granite or clay that expands when wet, which changes footing depth and sometimes the whole foundation spec. We check soils before we price, so the number you get is the number you build to.
Our Main Redlands Services
Most Redlands homeowners call us about one of three projects: a detached ADU in the backyard, a conventional home addition, or a single room bump-out. Each has its own Redlands page with local pricing and permit detail.
Home Addition Contractor in Redlands
A home addition in Redlands means tying new framing into a house that may be 80 or 100 years old. That’s a different skillset than building new: matching floor heights, blending rooflines, and making sure the old foundation and the new one don’t move against each other. On hillside lots north of the 10, we also contend with slope and drainage in ways flat-lot builders don’t. Read the full breakdown on our Home Addition Contractor in Redlands page.
ADU Builders in Redlands
Detached ADUs are the most popular project we quote in Redlands right now. State law has made them legal on nearly every single-family lot, but Redlands still applies its own design and setback standards, especially in historic districts. We work with prefab lines like Abodu, Cover, and Dvele, and also build stick-framed ADUs from the ground up when the lot calls for it. Start with our ADU Builders in Redlands page for local pricing.
Room Addition Contractor in Redlands
A room addition, whether it’s a new primary suite, a larger kitchen, or a home office, is usually the least disruptive way to add square footage without touching the backyard footprint. In Redlands, the biggest variable is whether the addition can stay within the existing roofline or requires a new ridge and truss package. That single detail can swing the budget by tens of thousands. See our Room Addition Contractor in Redlands page for what drives the price here.
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 Redlands
We have direct, hands-on experience with our brands, including Abodu, Cover, Dvele, and James Hardie exterior systems. When a Redlands lot has tight access or a historic overlay, we’ll tell you honestly which product line fits and which one will fight you.
Pricing for ADU Company in Redlands, CA
| Service | Typical range in Redlands |
|---|---|
| Detached ADU (400 – 600 sq ft, stick-framed) | $180,000 – $260,000 |
| Detached ADU (600 – 800 sq ft, stick-framed) | $240,000 – $340,000 |
| Detached ADU (800 – 1,000 sq ft, stick-framed) | $300,000 – $420,000 |
| Prefab ADU (Abodu, Cover, Dvele, 400 – 700 sq ft) | $200,000 – $350,000 installed |
| Garage conversion (standard 400 – 500 sq ft) | $110,000 – $180,000 |
| Garage conversion (upgraded, higher finish) | $150,000 – $220,000 |
| Home addition (400 – 600 sq ft) | $160,000 – $240,000 |
| Home addition (600 – 900 sq ft) | $220,000 – $360,000 |
| Room addition (single room, 150 – 250 sq ft) | $70,000 – $120,000 |
| Room addition (primary suite, 300 – 400 sq ft) | $120,000 – $190,000 |
| Tuff Shed conversion to livable ADU | $90,000 – $160,000 |
What pushes a Redlands price up: historic district design review, hillside grading and retaining, soils that need deeper footings, and older homes where the existing foundation or roofline requires structural upgrades before the addition can tie in. Every project gets a written price before any work begins, and that number does not change unless you change the scope.
Neighborhoods We Serve in Redlands
We work all over Redlands, and we’re usually able to schedule a site visit within a few days of your call. The areas below are where we quote most often, though no Redlands neighborhood is too far or too complicated.
- Smiley Park and South Redlands historic districts
- North Redlands and the Sunset Drive foothills
- Orange Street and East Redlands
- University of Redlands area
- Redlands Heights and the Country Club corridor
Service Area – Cities Near Redlands
If you’re just outside Redlands city limits, we commonly work in Loma Linda, CA, Mentone, CA, Colton, CA, and Highland, CA. Scheduling is coordinated from our Inland Empire office, and crews are dispatched locally to every city we serve.
Serving Redlands, CA - Our Local Coverage Area
We’re based in the Redlands 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 Redlands
We typically schedule a site visit within a few business days of your first call. The visit includes measuring, soil and access observations, and a conversation about your goals. Call (472) 248-8213 to set a time, and we’ll send the name and photo of who’s coming before they arrive.
Yes. Homes in designated historic districts go through design review before permits are issued, and the review can add several weeks. We prepare plans that fit the district’s standards from the start, which usually avoids rework. The 365-Day Done Right Promise applies to workmanship regardless of the permit path.
The written price covers the scope we agree on: plans, permits, labor, specified materials, and the finish level you choose. Site conditions we can’t see, like undocumented soil or hidden framing damage, get flagged and priced as a change order only after you approve it in writing. Call (472) 248-8213 for a free estimate that includes exactly what the line items mean in Redlands.
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 Redlands Customers Say
"Backyard ADU for my mother. The project manager showed ID and walked me through the permit steps, the foundation plan, and the schedule. Moved her in on time."
- Margaret C."Insulated the walls and ceiling properly. It stays comfortable even in July."
- Tamika W."They handled the drawings and the permit paperwork for us. All I had to do was pick the finishes."
- Rosa M.
