







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
Fielding ADU Builders handles room additions, garage conversions, and ADU construction in Redlands, CA, for homeowners who want a written price before the first nail goes in. Redlands jobs come with a particular set of conditions: older craftsman and Spanish-style homes with narrow side yards, hillside lots that shift the foundation math, and a city permitting office that expects plans drawn by somebody who has filed there before. Call (361) 315-4177 and you’ll get a live person who can talk through your project and schedule a free estimate.
Why Redlands Homes Are Different

Redlands is not a tract-home city. A lot of the housing stock dates to the 1920s and 1930s, which means we’re working with lath-and-plaster walls, shallow footings, and electrical panels that were last updated when the house got its first window air conditioner. An ADU or room addition tied to one of these homes often needs a service panel upgrade before anything else happens, and the city will want the foundation inspected where new framing meets old.
The terrain changes the work too. Redlands slopes up toward the San Bernardino Mountains, and lots in the south and east parts of the city frequently sit on grade. A detached ADU on a sloped lot usually needs additional pier work or a stepped foundation, and drainage becomes a real consideration because Redlands gets meaningful winter rain. Homes in the flat central neighborhoods near downtown face a different constraint: tight lot lines and older setbacks that sometimes require a variance to build anything within the standard five feet of a property line.
Historic district rules matter here more than in most Inland Empire cities. If your home falls within a Redlands historic district, exterior changes can trigger design review. We plan for that from the start by pulling the property’s designation before drawings begin, so the packet we file with the city is complete the first time.
Our Main Redlands Services
Most Redlands homeowners call us for one of three jobs. Each has its own Redlands page with pricing, timelines, and what the permit process looks like.
Room Addition Contractor in Redlands
A room addition in Redlands usually means extending the footprint of an older home, and that starts with understanding what’s already there. Many of these houses were built before shear wall requirements existed, so bringing an addition up to current code often means retrofitting part of the existing structure, not just building the new space. We pull permits for every addition, submit plans that account for Redlands’ mixed housing stock, and put the complete price in writing before any work begins. Room Addition Contractor in Redlands has the full breakdown by size and scope.

Garage Conversion Contractor in Redlands
Garage conversions are the fastest path to rentable space on many Redlands lots, but older detached garages here are frequently in rough shape. Slab foundations poured in the 1950s were not always reinforced for living space, and the city will ask for an upgrade if the slab doesn’t meet current standards. We handle the full conversion: foundation assessment, insulation, drywall, plumbing and electrical rough-ins, and final permitting. The Garage Conversion Contractor in Redlands page covers typical costs and what Redlands inspectors look for.

ADU Builders in Redlands
Backyard ADUs in Redlands need to clear the same hurdles as any new structure: setbacks, lot coverage, utility connections, and often a slope issue. We build conventional ADUs and also work with prefab platforms like Abodu and Cover, which can compress the timeline on flat, accessible lots where a crane or panel truck can get positioned. Every ADU we build is permitted and backed by the Garrison Standard in writing. ADU Builders in Redlands walks through the process and price range.

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 work with the materials Redlands homeowners already recognize: James Hardie siding for conventional builds, and prefab systems from Abodu, Cover, and Dvele when the lot and budget favor a factory-built structure. Parts and panels are ordered per project, not warehoused, which keeps lead times honest. See our brands for the full list.
Pricing for ADU Company in Redlands, CA
| Service | Typical range in Redlands |
|---|---|
| Detached ADU (prefab, turnkey) | $180,000 – $320,000 |
| Detached ADU (conventional build) | $220,000 – $380,000 |
| Garage conversion (attached, finish-out) | $90,000 – $160,000 |
| Garage conversion (detached, livable space) | $110,000 – $185,000 |
| Room addition (300 – 500 sq ft) | $95,000 – $165,000 |
| Room addition (500 – 800 sq ft) | $150,000 – $240,000 |
| Foundation upgrade on sloping lot | $12,000 – $30,000 |
| Electrical panel upgrade (100A to 200A) | $3,500 – $6,500 |
What pushes a Redlands price up: hillside excavation, historic district design review, and bringing an older home’s existing structure up to current shear and energy code. What doesn’t push it up: surprises after you’ve signed. The price we put in writing before work starts is the price on the final invoice.
Neighborhoods We Serve in Redlands
We work across the city, from the older grid of central Redlands to the newer subdivisions on the edges. Response time for a site visit anywhere in Redlands is typically one to three business days, depending on what’s already on the schedule.
- South Redlands and Sunset Drive
- Central Redlands near downtown
- North Redlands and the University of Redlands area
- Redlands Heights and the canyons
- East Redlands toward Mentone
Service Area – Cities Near Redlands
Beyond Redlands, we take ADU, garage conversion, and room addition projects in nearby cities where the same Inland Empire permit landscape applies. That includes Loma Linda, CA, Mentone, CA, Colton, CA, and Highland, CA. Dispatch and scheduling are coordinated from our Inland Empire office, and crews serve Redlands locally.
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

Site visits are typically scheduled within one to three business days. The timeline to actual construction depends on permit review at the City of Redlands, which currently runs faster for standard ADU applications than for projects requiring design review or variances. We give you a written schedule with your estimate.
Yes. We pull all permits ourselves and prepare the plan packet for whatever review your property requires, including Redlands historic district design review when it applies. We don’t ask homeowners to file their own permits or chase down city comments. Call (361) 315-4177 for details on your specific property.
Yes. That’s the Garrison Standard: a written price before any work starts, and a one-year written guarantee on the workmanship. If something fails inside that year, we come back and fix it at no charge. The number you approve is the number you pay.
Call (361) 315-4177 to schedule your free estimate. A live person answers, 24 hours a day.
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
"Garage conversion with a new bath and kitchenette. Permit was handled by them. Inspection passed first time."
- Sheila B."Honest feedback on what the lot could fit. Told me up front what would fit on the lot and what the setbacks would allow."
- Rita C."Clear price breakdown. Change orders were all in writing."
- Hal P.



