







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Nuevo, CA
Adding an ADU, converting a garage, or building a room addition in Nuevo means working with Riverside County’s specific permitting process, a hot Inland Empire climate that punishes cheap materials, and lots that range from tight original-home parcels to larger horse-property spreads. Fielding ADU Builders handles all three, and every job starts with a written price before any work begins. If you’re weighing your options in Nuevo, call (361) 315-4177 and we’ll walk you through what fits your lot and your budget.
Why Nuevo Homes Are Different
Nuevo sits in the western edge of Riverside County, where summer temperatures routinely cross 100 degrees and the soil is a mix of sandy loam and harder clay that shifts with the seasons. That combination shapes how we frame foundations and what we specify for siding, roofing, and insulation. A detached ADU on a Nuevo lot needs slab work that accounts for expansion and contraction, and we have learned to overbuild the footings rather than gamble on the cheapest pour. Homes here run from mid-century ranch houses on oversized parcels to newer subdivisions with tighter setbacks and HOA design review. Some of the older properties along Lakeview Avenue and Nuevo Road still carry original 1950s and 1960s floor plans, which means a garage conversion often starts with removing aged slab cracks or re-framing a roofline that has settled unevenly. Permits go through Riverside County, and setback variance requests, which are the county’s written permission to build closer to a property line than the standard rule allows, are common on the smaller lots. The good news is that the county has streamlined accessory dwelling unit permits substantially, which keeps timelines shorter than homeowners expect.
Our Main Nuevo Services
Most Nuevo homeowners call us for one of three projects: a garage conversion, a backyard ADU, or a room addition. Each has its own dedicated page with local pricing and job specifics, linked below.
Room Addition Contractor in Nuevo
A room addition in Nuevo typically attaches to the existing structure and works best when the original home has a sound foundation and a roofline that can be tied into cleanly. We see a lot of 1970s and 1980s single-story homes here, and the framing lumber we specify has to hold up through summer heat without warping. We pull county permits on every addition, run the electrical and HVAC extensions to code, and match the exterior so the new section does not look bolted on. The written price we hand you covers the full scope before demolition starts, and that number does not move unless you change the scope. Room Addition Contractor in Nuevo

Garage Conversion Contractor in Nuevo
Nuevo garages run from attached two-car spaces on 1990s homes to freestanding structures on the older parcels. Converting one into living space means insulating walls that were never insulated, adding a proper subfloor over the slab, and often upgrading the electrical panel because the original garage circuit was never sized for a bedroom and bathroom. Riverside County requires garage conversions to meet the same egress, insulation, and ventilation standards as new construction, which is why this is not a handyman job. We handle the permit drawings, the structural changes, and the final inspection. Garage Conversion Contractor in Nuevo

ADU Builders in Nuevo
Backyard ADUs in Nuevo fall into two camps: prefab units we install and finish on site, and conventional stick-built units. On the larger parcels east of town, a prefab ADU from a platform like Abodu or Cover can go from permit to move-in faster because the module is built in a factory while the site work happens in parallel. On tighter lots, a custom stick-built ADU gives you more control over the footprint and the roofline. Either way, every ADU we build in Nuevo carries The Garrison Standard: written price upfront, permitted work, and a one-year written guarantee that covers workmanship. ADU Builders in Nuevo

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 Nuevo
We build with the materials Nuevo homeowners actually research: James Hardie siding for the exterior, Abodu and Cover for prefab ADUs, and Dvele for high-performance modular units. Our crews order parts directly from local Inland Empire suppliers, which keeps lead times shorter than shipping from out of state. See our brands for the full list.
Pricing for ADU Company in Nuevo, CA
| Service | Typical range in Nuevo |
|---|---|
| Custom ADU (conventional build) | $180,000 – $320,000 |
| Prefab / modular ADU (installed and finished) | $120,000 – $220,000 |
| Garage conversion (attached) | $75,000 – $130,000 |
| Garage conversion (detached) | $90,000 – $150,000 |
| Room addition (200 – 400 sq ft) | $65,000 – $120,000 |
| Room addition (400 – 700 sq ft) | $110,000 – $190,000 |
| Foundation and slab work | $12,000 – $30,000 |
| Electrical panel upgrade | $2,500 – $5,000 |
| Permit fees and county submittals | $4,000 – $10,000 |
| Site prep and utility trenching | $6,000 – $18,000 |
Two things push prices up in Nuevo more than anywhere else: soil conditions that require deeper footings on the heavier clay patches, and summer heat that forces us to schedule pours and exterior work in the early morning. Whatever the number, you get it in writing before we start, and that is the number on the final invoice unless you change the scope.
Neighborhoods We Serve in Nuevo

We work across all of Nuevo, from the original homes near Lakeview Avenue and Nuevo Road to the newer subdivisions north of the 60 and the larger parcels stretching east toward the San Jacinto Wildlife Area.
- Lakeview and Nuevo Road corridor
- North Nuevo residential tract
- East Nuevo horse-property acreage
- Subdivisions near the Nuevo Community Park
- West Nuevo toward Perris
For most estimates, we can be on your lot within a few business days of your call, and the visit is free.
Service Area – Cities Near Nuevo
Fielding ADU Builders serves Nuevo and the surrounding Inland Empire communities. If you’re just over the city line, we cover Homeland, CA, Moreno Valley, CA, San Jacinto, CA, and Hemet, CA with the same written-price policy and one-year guarantee.
Serving Nuevo, CA - Our Local Coverage Area
We’re based in the Nuevo 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 Nuevo

Riverside County typically takes 4 to 12 weeks to approve a standard ADU permit, depending on whether your lot needs a setback variance or septic review. We handle the full submittal, and the permitting timeline is built into your written estimate so there are no surprises.
Yes. Riverside County requires a building permit for any garage conversion that adds living space, and the work must pass electrical, plumbing, insulation, and egress inspections. Unpermitted conversions can block a future home sale, so we pull permits on every project, no exceptions.
After you approve the written estimate, we typically begin within 2 to 4 weeks once the permit is issued. Prefab ADU projects can move faster because factory production runs in parallel with our site work. Call (361) 315-4177 to schedule a free estimate and get a start-date range for your specific lot.
If you’re ready to talk numbers for a Nuevo ADU, garage conversion, or room addition, call (361) 315-4177. We’ll put a written price in your hands and give you the full scope before you decide anything.
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 Nuevo Customers Say
"Solid job. Cabinet delivery was a week behind but they worked around it."
- Ben G."Insulation, drywall, and finishes were all well done. Feels like part of the house."
- Pete O."Built a detached ADU behind our house. The builder is a veteran and runs the site like a platoon: schedule posted, crew on time, everything labeled. Finished within a few days of the date."
- Ken W.



