Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Before
After
Before
After
Before
AfterFast, Reliable Home Additions & ADU Across Arcadia
Adding square footage to an Arcadia home usually costs between $45,000 and $130,000, and the final number depends on whether you’re converting a garage, building a detached ADU, or doing a full second-story addition. We know that’s a wide range, which is why we put every scope and every allowance on paper before the first nail moves. If you’re weighing an ADU for family or rental income in the 91006 or 91007 ZIP, call (877) 610-1318 for a free estimate and we’ll walk the property together.
Why Barrett & Sons Construction Is Arcadia’s Preferred Home Additions & ADU Company
Tom Barrett founded this company in 1998 and his sons run the crews. That’s not a marketing line. When you schedule an addition or ADU in Arcadia, the person who shakes your hand is the person whose name is on the truck. We carry premium brands like Techo-Bloc and Cambridge Pavers for outdoor living spaces that often accompany an ADU build, but more importantly, every job includes permits pulled and inspections signed. Ask anyone on your street, or look up the license number yourself.
Arcadia homeowners tend to be done with contractors who vanish after the deposit clears. Our 90-Day Done Right Promise is written on every contract: if something isn’t done right, Tom comes back and makes it right with one call. A live person answers the phone 24 hours a day, seven days a week, not an out-of-state call center. And no trip charge inside the county means you can get a straight answer without paying for the privilege.
Our Home Additions & ADU Services in Arcadia
Our Home Additions & ADU team handles everything from small interior conversions to full detached units. Here’s what that looks like on the ground in Arcadia.
ADU Design & Permitting
California’s ADU laws have opened the door for thousands of Arcadia properties, but the city’s planning department still has its own checklist. We sit with you, draw the footprint that fits your lot dimensions, and handle every permit application and inspection. Arcadia’s lots in the 66 and 77 ZIPs are often wider than deep, which changes where a detached ADU makes sense versus an attached conversion.
Garage Conversion ADU
A garage conversion in Arcadia typically runs $30,000 to $80,000 depending on whether you’re adding a full bath, kitchenette, and separate electrical panel. Many homes here still have their original 1950s or 1960s slab garages, which usually need moisture barriers and floor leveling before framing starts. We’ve done enough of these to quote you accurately the first time.
New Detached ADU
Detached ADU construction in Arcadia generally lands between $90,000 and $220,000. The spread comes down to site prep, foundation depth, utility trenching, and finish level. Some clients want a simple one-bedroom unit; others spec it like a small luxury home. Either way, you get a written scope with every allowance listed.
Junior ADU & Interior Conversion
A junior ADU converts existing interior space, often a master bedroom wing or bonus room, into a self-contained living area. These projects cost less than a new build and can often be permitted faster because they don’t change the home’s footprint. In Arcadia’s ranch-style stock, a junior ADU is frequently the smartest first step before committing to a larger addition.
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.
Trusted Brands We Service in Arcadia
We stock and install materials from Techo-Bloc, Cambridge Pavers, and Oldcastle, which matters when your ADU includes a paver patio, walkway, or outdoor kitchen area. These aren’t mystery brands off a van. You can look up the warranty and the manufacturer spec before you sign. For Arcadia customers, we keep common materials staged locally so a design change doesn’t stall your project for three weeks.
Common Home Additions & ADU Problems We See in Arcadia Homes
- Aging electrical panels. Homes built between 1950 and 1975 in Arcadia often still have their original 60-amp or 100-amp panels. A new ADU with a kitchen and laundry usually demands a 200-amp upgrade, and that’s a cost you need to see in writing before framing starts.
- Galvanized plumbing under the slab. Original galvanized supply lines in these ranch homes corrode from the inside out. An ADU addition is often the moment homeowners discover they need a repipe, which is why our change-order process exists: nothing gets added to the bill without your signature first.
- Lot depth versus width conflicts. Many Arcadia parcels in 91006 and 91007 are wide but shallow, which makes side-yard ADU placement tricky. Setback rules can eat into your buildable footprint, so we walk the property line with a tape measure, not a guess.
- Sloped rear yards near the foothills. Homes along Arcadia’s northern edge sit on grade changes that need retaining walls or terraced foundations. That’s not a flat-lot price, and a contractor who quotes it like one will surprise you later. We quote it straight the first time.
Pricing for Home Additions & ADU in Arcadia, FL
A room addition in Arcadia typically runs $45,000 to $130,000. A garage conversion floors at about $30,000 and climbs to $80,000 with a full bath and kitchenette. A new detached ADU lands between $90,000 and $220,000 once site work, utilities, and finishes are counted. The factors that move you within those ranges: foundation type, panel upgrade, plumbing reach, and whether your finish package includes brands like Techo-Bloc for the hardscape around the unit. Call (877) 610-1318 for a free estimate and we’ll give you a line-item quote with no hidden allowances.
We Also Serve Cities Near Arcadia
Beyond Arcadia proper, our crews regularly work in Southeast Arcadia, Punta Gorda, Punta Gorda Isles, and Port Charlotte. If you live near the county line, call us and we’ll confirm coverage. We also handle Kitchen Remodeling in Arcadia and Bathroom Remodeling in Arcadia for homeowners who want to tie an ADU into a broader floor plan update.
Serving Arcadia, FL - Our Local Coverage Area
We’re based in the Arcadia 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 Arcadia
Most Arcadia ADU projects begin within two to four weeks of the signed contract, depending on permit review. Call (877) 610-1318 to get a free estimate and we’ll give you a realistic start date based on your exact scope.
Yes, we cover every ZIP in Arcadia including 91006, 91007, 91066, and 91077. No trip charge inside the county means a site visit is free.
For an existing ADU that’s become unsafe due to storm damage or a structural issue, a live person answers our phone 24/7 and we’ll schedule a visit quickly. For planned additions and new ADU builds, we schedule within two to four weeks so we can do the job right the first time.
Arcadia’s pricing sits in the same range as the surrounding cities for ADU work, but the specifics of your lot, foundation, and access determine the final number. We give you a written line-item quote before work begins, so you won’t see a different number later.
Every home addition and ADU we build in Arcadia carries the 90-Day Done Right Promise, written on the contract. If something isn’t done right, Tom comes back and makes it right with one call. Call (877) 610-1318 to schedule your free estimate.
Written by Tom Barrett, Owner at Barrett & Sons Construction.