Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Additions & ADU Across Pedley
Planning a home addition or ADU in Pedley means dealing with something most contractors never mention: you’re in unincorporated Riverside County, so your permits don’t go through a city building department. They route through Riverside County Building & Safety, which has its own plan-check queue, its own inspector pool, and its own way of interpreting code. That changes timelines, foundation requirements, and how your project gets approved. Barrett & Sons Construction has been pulling those permits since 1998, and we’re the crew you’ll see back on your street when the inspector signs off. Call (877) 610-1318 for a free estimate on your addition or ADU.
Why Barrett & Sons Construction Is Pedley’s Preferred Home Additions & ADU Company
Tom Barrett started this company in 1998, and he still answers the phone himself. His sons run the crews. When you hire us for an ADU off Limonite Avenue or a room addition near the Santa Ana River corridor, the name on the truck matches the name on the contract. That matters in Pedley, where homeowners have been burned by outfits that quote one number on the phone and hand over a different bill at the door.
Every scope gets written down before work starts. Every allowance gets written down. Every price change comes as a written change order before a nail moves. We pull permits and get inspections signed on every eligible job, because we know the Riverside County inspector’s expectations on alluvial-soil sites and flood-adjacent lots. And every job is backed by our 90-Day Done Right Promise, written on the contract, not buried in fine print. If it’s not right, Tom comes back.
We also serve the surrounding Pedley area from our Inland Empire office, so scheduling and plan-check coordination stay tight. Ask anyone on your street about us, or look up the license number yourself.
Our Home Additions & ADU Services in Pedley
ADU Design & Permitting
Building an ADU in Pedley starts long before a foundation gets poured. Riverside County’s plan-check queue moves at its own pace, and if your lot sits within or near a FEMA Special Flood Hazard Area along the Santa Ana River, you may need an elevation certificate and flood-resistant foundation design before approval. We handle that documentation as part of the build, not as a surprise later. A detatched ADU in Pedley typically starts around $90,000 and can reach $220,000 depending on size, finishes, and site work.

Garage Conversion ADU
Many Pedley homes from the 1950s through 1970s have attached garages that make natural ADU candidates. Converting one means bringing the entire structure up to current Title 24 energy standards, which is stricter here than in coastal cities because of summer heat routinely past 105°F. Garage conversions in Pedley generally run $30,000 to $80,000, and we write every insulation, glazing, and cool-roof detail into the scope before permits get filed.

New Detached ADU
A new detached ADU on a Pedley lot means dealing with expansive clay-bearing alluvial soils near the river corridor. We insist on proper grading, compaction testing, and post-tension slab design on these jobs, because differential settlement will crack a cheaper foundation within a few years. Whether you’re adding a unit for family or rental income, this is the Home Additions & ADU work we’ve done for nearly three decades. Expect $90,000 to $220,000 depending on square footage and utility runs.

Junior ADU & Interior Conversion
Interior conversions and junior ADUs are the fastest way to add a private living space without new foundation work. In Pedley’s ranch-style homes, we often convert a den, a large laundry room, or an underused rear bedroom into a JADU with its own entrance. These jobs usually come in lower than full additions, but they still require Riverside County plan-check approvals and energy compliance. We also handle Kitchen Remodeling in Pedley and Bathroom Remodeling in Pedley when your ADU needs a full kitchenette or bathroom as part of the conversion.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Pedley
We install materials you can look up. For hardscape work around a new ADU or sunroom, we use Belgard and Techo-Bloc pavers, which stand up to Pedley’s summer heat cycles better than thinner imported products. On window and door packages for Pedley additions, we specify Andersen and Marvin so the Title 24 energy numbers pass inspection the first time. Nothing goes on your project from a mystery van. If a product has a warranty, you’ll know exactly whose name is on it.
Common Home Additions & ADU Problems We See in Pedley Homes
- Foundation settlement on clay soil. Homes near the Santa Ana River corridor sit on expansive clay-bearing alluvium that swells and shrinks with moisture. We see cracked slabs and out-of-level floors on older Pedley ranch homes, and any addition needs compaction testing and proper slab design before we’ll pour.
- Permits routed through the county, not a city. Because Pedley is unincorporated, work here goes through Riverside County Building & Safety. A contractor who only does city work in Jurupa Valley or Riverside may not know how the county’s plan-check queue and inspector rotations work, and that costs you weeks.
- FEMA flood zone complications. Portions of 92509 sit within or adjacent to Special Flood Hazard Areas tied to the Santa Ana River. Ground-up ADUs and major additions can require elevation certificates and flood-resistant foundation design that most contractors never mention until the inspector flags it.
- Title 24 upgrades on older homes. When we add onto a 1960s Pedley ranch, the existing structure often has to be brought up to current energy codes, not just the new square footage. That means insulation, glazing, and roof details get written into the change order before work starts, so there are no surprise line items at the end.
Pricing for Home Additions & ADU in Pedley, CA
Home additions in Pedley typically run $45,000 to $130,000, and ADU construction lands between $90,000 and $220,000. What moves the number? The most expensive factors here are foundation work on expansive soil, flood-zone compliance when your lot qualifies, and the cost of bringing the existing structure up to Title 24 energy standards. A detached ADU with a full kitchen and bath sits at the high end. A garage conversion sits lower. Every estimate we give is written line-by-line, and every change after that arrives as a written change order before we proceed. Call (877) 610-1318 to get your exact number. Estimates are free, and there’s no trip charge inside the county.
We Also Serve Cities Near Pedley
Our crews work throughout the Jurupa Valley and Riverside area, including Glen Avon, Sunnyslope, Rubidoux, and Riverside. If you’re just across the jurisdictional line from Pedley, the permit process changes depending on which side you’re on, but our pricing and written change orders don’t. Same crew, same 90-Day Done Right Promise.
Serving Pedley, CA - Our Local Coverage Area
We’re based in the Pedley 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 - Home Additions & ADU in Pedley
Most home additions in Pedley run between $45,000 and $130,000. The final number depends on foundation conditions on your specific lot, whether flood-zone requirements apply, and how much of the existing home must be brought up to current energy code. Call (877) 610-1318 for a free written estimate.
Yes. Pedley is unincorporated, so ADU permits go through Riverside County Building & Safety, not a city department. We pull all permits and get every inspection signed on eligible jobs. The permit inspector works for you, not for me, which is why I like having him on site.
A typical detached ADU takes several months from plan approval to final inspection, and the Riverside County plan-check queue sets the early pace. We write the sequence and timeline into your contract, and any change to that timeline gets documented the same way any price change does: in writing.
Yes, if the foundation is designed for it. Expansive clay-bearing soils cause differential settlement on poorly compacted slabs. That’s why we require grading, compaction testing, and post-tension slab design on new builds and major additions in Pedley. It costs more up front and saves you from cracked concrete later.
Yes. We give free written estimates for Home Additions & ADU work in Pedley, and there’s no trip charge inside the county. We also offer a free second opinion on any written estimate you’ve received from another contractor. Call (877) 610-1318 to schedule yours.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Pedley since 1998.







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