Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable Home Additions & ADU Across Deerfield Beach
Deerfield Beach roofing, additions and ADUs run $45,000 to $130,000 for most room additions, while a detached ADU typically lands between $90,000 and $220,000 depending on site work, flood elevation requirements, and finish level. If you’re reading this, you’re probably weighing whether to add on to a pre-1992 concrete block home near the Intracoastal, convert a garage in 33442, or build a new ADU for family or rental income in 33441. You need a contractor who actually understands Broward County’s Coastal Construction Control Line permits, FEMA Zone AE flood rules, and what salt air does to aging CBS construction. That’s exactly who we are.
At Barrett & Sons Construction, Tom Barrett has been running crews in South Florida since 1998. His sons work on-site most days. We spend our days in and around Deerfield Beach, not dispatching strangers from some out-of-state call center. Call us at (877) 610-1318 and a live person picks up. No voicemail maze, no “press 4 for new construction.”
Why Deerfield Beach Homeowners Call Barrett & Sons First
We earn most of our work in Deerfield Beach the old way: someone on the street we built sees the finished job and asks who did it. Our Home Additions & ADU team has pulled permits for additions in The Cove, inside Century Village, up and down Hillsboro Boulevard, and on small lots off Powerline Road. The county plan reviewers know our paperwork. That matters when a permit sits in a queue for two weeks because someone forgot a wind-load calc.
Tom Barrett publishes his name, his address, and his license number. You can look it up before you sign anything. That’s the point. We like the permit inspector. The inspector works for you, not for me. Every scope, every allowance, every change order arrives in writing before a single nail moves. An allowance that isn’t on paper is a surprise waiting for a date. Ask anyone on your street, or look up the license number yourself.
We back every job with our 90-Day Done Right Promise, written on the contract. If something isn’t right, one call brings Tom back. We’ve been doing this since 1998, and the promise is the same one Tom made when he hung the sign.
Our Home Additions & ADU Services in Deerfield Beach
ADU Design & Permitting in Deerfield Beach
Every ADU in Deerfield Beach starts with two questions: what does the zoning allow on your exact lot, and what does FEMA Zone AE require for finished floor height. Most of the city sits in a Special Flood Hazard Area, which means a “simple” garage conversion can become a substantial improvement that triggers floodplain review. We handle the design, the structural drawings, the Broward County submission, and the DEP coordination when your lot falls seaward of the CCCL. You don’t juggle the agencies. We do. A permitted ADU in Deerfield Beach typically adds $90,000 to $220,000 to project cost, and the design and permitting phase usually carries 8 to 14 weeks of that timeline.
Garage Conversion ADU in Deerfield Beach
Garage conversions in Deerfield Beach run $30,000 to $80,000, and the older your home, the more likely we’re opening walls to replace corroded lintels and fasteners chewed by decades of salt air. Homes built from the late 1960s through the mid-1980s make up a huge share of Deerfield Beach’s CBS stock, and those structures were never designed for the 150+ mph wind loads in today’s Florida Building Code. Bringing a garage conversion up to that standard is the difference between a permit that passes and a permit that gets rejected. Our crews do this work in 33441, 33442, and 33443 every month.
New Detached ADU in Deerfield Beach
Building a new detached ADU in a Deerfield Beach backyard means starting from scratch with foundation elevation, impact-rated openings, and site drainage sized for hurricane season. That’s where the $90,000 to $220,000 range comes from. On the beachside barrier island east of the Intracoastal, you’re also in the dual-permit zone: Broward County CCCL review plus Florida DEP sign-off. Out-of-area crews get caught here because they assume standard Broward permitting is enough. It isn’t. We know what the DEP reviewer wants to see before the first submission, which saves you weeks.
Junior ADU & Interior Conversion in Deerfield Beach
A junior ADU turns an underused interior space, a large bedroom, a den, a bonus room, into a self-contained living unit with its own entrance, kitchenette, and bath. It’s the most affordable path to an ADU because the structure already exists. In Deerfield Beach, interior conversions often make sense inside older garden-style condos where an aging owner wants a caregiver on-site or adult children want to keep Mom close without buying a second property. We also handle the plumbing and electrical separations required for a legal, permitted rental unit rather than an unpermitted “efficiency” that could bite you at resale.
If your addition plan touches the existing kitchen or bath, our Kitchen Remodeling in Deerfield Beach crew handles the tie-in work, and Bathroom Remodeling in Deerfield Beach covers the new bath, which keeps the whole project under one roof and one written scope.
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 Install in Deerfield Beach
When we pour a patio, walkway, or ADU foundation approach in Deerfield Beach, we specify pavers and products we can defend by name. Techo-Bloc and Cambridge Pavers are the two we use most on Deerfield Beach properties, because they hold up under the salt spray near A1A and the daily rain cycles of a Florida summer. We also use Quikrete for smaller concrete repairs and leveling work where full concrete pours aren’t needed. You can look up any of those brand names yourself before we start. We’d rather you know what’s going into the job.
Common Home Addition & ADU Problems We See in Deerfield Beach Homes
- Pre-1992 concrete block homes that don’t meet current wind-load standards. Most of the single-family stock in 33442 and 33441 was built before the post-Hurricane Andrew building code overhaul. Any addition we touch has to bring the existing structure into current FBC compliance, which means engineering is part of the job from day one, not an afterthought.
- Base flood elevation triggers on “small” projects. In FEMA Zone AE, a remodel that hits 50% of the home’s market value becomes a substantial improvement, and the county can require raising the finished floor. We tell you on the front end whether your ADU or addition is likely to cross that line, because no one wants to find out at plan review.
- Salt corrosion hidden inside CBS walls. Ocean air works on steel lintels and rebar for decades. We routinely open up walls in east Deerfield Beach and find rusted lintels that have to be replaced before an addition can tie in. It’s a local condition, and it changes the bid if we don’t catch it early.
- Barrier island permitting complexity. Work east of the Intracoastal in 33441 falls under Broward County’s CCCL regulations and Florida DEP review. A standard county permit isn’t enough. If your contractor doesn’t know that on the front end, you’ll lose weeks of schedule before the first inspection.
Pricing for Home Additions & ADU in Deerfield Beach, FL
For planning purposes, here’s what we see across Deerfield Beach right now. A standard room addition, permitted and finished, runs $45,000 to $130,000. A garage conversion ADU falls between $30,000 and $80,000. A new detached ADU typically lands at $90,000 to $220,000, with barrier island and flood-zone sites at the high end. The biggest cost drivers in Deerfield Beach specifically are base flood elevation work, impact-rated windows and doors, roof-to-wall connection upgrades on the existing structure, and CCCL review on beachside lots. We give you a written line-item estimate before work starts, and every price change arrives as a written change order before the work happens. No surprise invoices at the end. Call (877) 610-1318 to schedule your free estimate.
We Also Serve Cities Near Deerfield Beach
Our crews work all through the surrounding area: Lighthouse Point, Pompano Beach Highlands, Boca Del Mar, and Boca Raton. If you’re just over the line from Deerfield Beach, the permitting reality changes a little, but the way we work doesn’t. For a broader look at what we do, see Home Additions & ADU in Deerfield Beach.
Serving Deerfield Beach, FL - Our Local Coverage Area
We’re based in the Deerfield Beach 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 Deerfield Beach
We schedule a free estimate within a few days, and most additions or ADUs begin the design and permitting phase within two to four weeks of a signed contract. Permitting through Broward County for flood-zone and beachside properties adds real time, which we build into the written schedule up front. Call (877) 610-1318 for a firmer answer on your specific street.
Yes. We work in 33441, 33442, and 33443, including The Cove, east Deerfield Beach near A1A, and the Century Village area. We pull permits in all three ZIPs regularly and know the plan reviewers. Call (877) 610-1318 and tell us your street, and we’ll tell you which permit path applies.
Yes, and for a real reason. Flood zone elevation, impact-rated windows and doors, CCCL review on beachside lots, and salt-corroded structural repairs all push Deerfield Beach costs higher than, say, a dry inland lot in Boca Raton. We publish line-item pricing so you see exactly where those dollars go. Call (877) 610-1318 for a written estimate.
Only if something changes that we couldn’t see before we opened walls, like hidden salt-corrosion damage in existing CBS construction or a flood elevation requirement the county flags during plan review. Every change is a written change order you approve before we proceed. Nothing goes on the invoice without paper first. Call (877) 610-1318 to talk through what’s likely on your home.
Every job carries our 90-Day Done Right Promise, written on the contract. If it isn’t done right, one call brings Tom Barrett back to make it right. That holds in Deerfield Beach and everywhere else we work. Call (877) 610-1318 to see the promise in writing before you sign anything.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Deerfield Beach and South Florida since 1998.