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
Building an ADU in Redlands means working with a city that has deep historic housing stock, hot summer months that punish cheap materials, and hillside lots in neighborhoods like Sunset Drive where grading and setbacks get real complicated real fast. Benson ADU Builders handles all of it with a written price before any work starts and a 365-Day Done Right Promise stamped on every project. If you’re weighing a backyard rental unit, a home addition for aging parents, or a dedicated office, call (903) 568-7222 and we’ll walk you through what’s actually possible on your lot.
Our Main Redlands Services
Most Redlands homeowners call us about two things: building a new ADU from the ground up, or adding square footage to the existing house. Here’s what each looks like in Redlands specifically.
ADU Builders in Redlands
Redlands lots vary wildly, from compact pre-war parcels near the University of Redlands to larger ranchette-style properties south of the 10. That spread means every ADU here starts with a real site read: where the sewer lateral runs, how far the setback pushes the unit from the property line, and whether a prefab panel system from Abodu or Cover actually fits through the side-yard access. ADU Builders in Redlands is our dedicated page for this work, with local pricing and what the permit path looks like.
Home Addition Contractor in Redlands
Adding onto a 1920s bungalow in the South Redlands historic districts is not the same job as adding onto a 1990s tract home off San Timoteo Canyon Road. Foundation types differ, rooflines pitch differently, and matching stucco or siding on an older home takes a patient hand. You get a fixed written price before demo day and a crew that shows up in uniform with a plan. Home Addition Contractor in Redlands covers the full scope, including the structural work older Redlands homes often need.
Room Addition Contractor in Redlands
A single room addition – a bedroom, a home office, a laundry room – is the most common project we quote in Redlands, and it’s also the one where scope creep bites hardest if the price isn’t locked in writing. We handle the full permit package, match the existing roofline, and use James Hardie cladding where it makes sense for heat and fire resistance. No change orders after the contract is signed. Room Addition Contractor in Redlands has the detailed pricing and timeline.
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.
Why Redlands Homes Are Different
Redlands runs hot. Summer temps routinely push past 100 degrees, and that changes the insulation spec, the window choice, and the HVAC sizing on every project we quote. A detached ADU with cheap wall insulation in a Redlands August is a complaint waiting to happen, so we size the envelope right the first time and show you the load calculation in your written quote.
The housing stock is older than most of the Inland Empire. Whole neighborhoods near downtown, around Highland Avenue and Cajon Street, are pre-1940 construction with raised foundations, lathe-and-plaster walls, and original framing that doesn’t always match modern code assumptions. That affects where we can place a load-bearing beam, how the addition ties into the existing structure, and what the inspector will flag. None of it surprises us, but it does change the price and the approach.
Terrain matters too. Properties on the south side of Redlands, up toward the hills off Sunset Drive and San Timoteo Canyon, often have sloping lots that require stepped foundations or retaining work. The flatter central and north parts of town are more forgiving. When we quote, we account for that grade because it moves the concrete number faster than anything else on the job.
Brands We Service in Redlands
We’re authorized to build with Abodu, Cover, and Dvele for prefab ADU shells, and we spec James Hardie cladding on many Redlands additions for its heat and fire performance. Parts and panels are ordered through our Inland Empire channel, so lead times hold steady across the region. See our brands for the full lineup and what each system costs.
Pricing for ADU Company in Redlands, CA
| Service | Typical range in Redlands |
|---|---|
| Detached ADU, site-built (400 – 800 sq ft) | $180,000 – $320,000 |
| Detached ADU, prefab (Abodu or Cover) | $165,000 – $280,000 |
| Garage conversion ADU | $95,000 – $175,000 |
| JADU (attached junior unit) | $70,000 – $120,000 |
| Primary suite addition | $85,000 – $160,000 |
| Single room addition (office or bedroom) | $45,000 – $90,000 |
| Second-story addition (per sq ft) | $250 – $400 per sq ft |
| Kitchen bump-out | $55,000 – $110,000 |
What pushes a Redlands job toward the top of those ranges: sloping terrain that needs grading or retaining work, older foundations that require structural upgrades before the addition ties in, and historic-district review if your house falls inside the city’s preservation overlay. The written price we give you before work starts is the price you pay. No change orders, no surprise line items when the crew shows up.
Neighborhoods We Serve in Redlands
We cover the entire Redlands area, from the historic streets near downtown to the newer subdivisions south of the 10. Here are the areas we work in most often:
- South Redlands historic districts
- Sunset Drive and the south hills
- North Redlands near the University
- San Timoteo Canyon Road corridor
- Central Redlands off Highland Avenue
Most Redlands projects start with a site visit within a few days of your first call, and the written quote follows shortly after. Timing depends on the size of the job and what the site walk turns up.
Service Area – Cities Near Redlands
If you’re just outside Redlands, we also work in Loma Linda, CA, Mentone, CA, Colton, CA, and Highland, CA. Same written-price guarantee, same 365-Day Done Right Promise, same live person on the phone when you call.
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 the initial site visit within a few business days of your call, then deliver the written estimate within about a week after that, once measurements and plan research are done. Call (903) 568-7222 to get on the calendar for a free estimate.
Yes, we handle the full permit package for Redlands projects, including any historic-district or hillside review required by the city. We pull the permits, schedule the inspections, and you get a digital invoice you can pay by link when each phase is approved. Call (903) 568-7222 with your address and we’ll tell you which overlays apply to your lot.
We work both sides of that line. If your neighborhood has an HOA with architectural review, we’ll prep the submission packet for you and walk it through their process alongside the city permit. Some Redlands communities require HOA sign-off before the city reviews anything, so we sort that sequencing early so it doesn’t stall the job later.
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
"Booked a consult online and met the project manager two days later. Weekly progress updates arrived by text with photos. ADU finished on schedule."
- Hannah W."Clean, quiet crew. They respected the neighbors, kept noise to working hours, and swept the driveway every evening."
- Hope C."Communication was the best part. I always knew what was happening that week without having to ask."
- Dolly N.
