Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Additions & ADU Across Coconut Creek
Home additions in Coconut Creek typically run $45,000 to $130,000, while a detached ADU (accessory dwelling unit) usually lands between $90,000 and $220,000 depending on size, site conditions, and the approval path your property requires. This is a city where most homes sit on concrete block foundations with a water table close enough to the surface that drainage becomes the quiet center of every addition conversation. We are Barrett & Sons Construction, and we’ve been building in this part of Broward County long enough to know that a Coconut Creek addition succeeds or stalls on two things: paperwork timing and how the slab meets the saturated ground under it. Call (877) 610-1318 to schedule a free estimate, and we’ll walk the property with you before you decide anything.
Why Barrett & Sons Construction Is Coconut Creek’s Preferred Home Additions & ADU Company
You’ll hear it at the Wynmoor clubhouse and in the single-family neighborhoods off Lyons Road: a contractor who isn’t local doesn’t understand what Broward County wants from an ADU permit, and a contractor who is local should be able to prove it. Tom Barrett publishes his name, his address, and his license number. Look it up before you sign anything. His sons run the crews, and someone with the Barrett name is on most Coconut Creek job sites most days, which matters when the architectural review board asks a question at 9:00 a.m. and the answer needs to come from the person who will actually pour the foundation.
We answer our own phone, 24/7. Not a call center. Not a voicemail that promises a callback within two business days. When a Coconut Creek homeowner calls at 7:00 p.m. because a summer storm exposed a leak in a temporary wall framing, Tom or one of his sons picks up. That’s not a marketing line; it’s how the company has operated since 1998.
Coconut Creek customers come to us after getting burned by national outfits that quoted one number in a brochure and handed them a change order two months later. Our depth in this market runs through Home Additions & ADU and our Coconut Creek service area, and we protect every job with written change orders. If the scope changes, the price changes, and you see it in writing before the work starts, not after the invoice arrives.
Our Home Additions & ADU Services in Coconut Creek
ADU Design & Permitting
Permitting an ADU in Coconut Creek is a two-track process, and most contractors only know about one. Broward County building department reviews structural, electrical, plumbing, and wind-load compliance. The community architectural committee, especially in Wynmoor and the other 55+ villages that dominate the city’s footprint, reviews aesthetics, siting, and materials, and that committee often meets once a month. A contractor who doesn’t file both applications in parallel loses weeks. We file both simultaneously, we attend every review that will have us, and we pull permits on every eligible job, because the last contractor most Coconut Creek customers used told them permits were optional.

Garage Conversion ADU
Converting a garage to an ADU in Coconut Creek generally runs $30,000 to $80,000, with the permitting path typically moving faster than a detached build because the footprint already exists. Most Coconut Creek garages are attached to CBS homes from the 1980s and early 1990s, and the challenge isn’t framing the opening; it’s correcting the slab pitch, adding proper egress, and bringing the electrical service up to what a dwelling unit requires under the Florida Building Code. We handle the full conversion: insulation upgrades, floor leveling, kitchenette build-out where the layout allows, and every inspection along the way.

New Detached ADU
A new detached ADU in Coconut Creek typically costs $90,000 to $220,000. That price reflects what the site asks of you, which in this city is more than most people expect. Coconut Creek sits on the Atlantic Coastal Ridge with a shallow water table, and when summer rains saturate the ground for weeks, slab and footing design have to account for hydrostatic pressure that a dry inland site never sees. We spec raised foundations or crushed-base drainage where conditions require, and we don’t guess at it. We bring in geotechnical input when the site tells us to, and the permit engineers sign off before we pour.

Junior ADU & Interior Conversion
For attached layouts, an interior conversion into a junior ADU often makes more sense than building outward, especially in Coconut Creek’s older condo stock where exterior footprint expansion typically falls under stricter community review. A junior ADU within existing conditioned space usually lands on the lower end of the home addition range, around $45,000 to $70,000 depending on plumbing proximity and egress requirements. We’ve done enough of these in Coconut Creek to know where the sewer lines run in the 1978-1995 CBS buildings, and we plan around existing chase walls rather than pretending the concrete will cooperate with a new plumbing stack in the middle of the unit.

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 Coconut Creek
We install materials you can look up, not mystery brands off a van. For bathroom work inside your addition or ADU we’re comfortable with Sterling and Grohe fixtures and Schluter waterproofing systems, because they hold up to South Florida humidity and they’re backed by manufacturers that answer when something fails. For any roofing intersection on a second-story addition or a converted garage, we carry GAF products. Coconut Creek homeowners appreciate that we stock common replacement and repair parts locally, so a fixture trim or vent boot doesn’t become a two-week wait for a shipment from Ohio. When we say a part arrives fast, it’s because we keep it close.
Common Home Additions & ADU Problems We See in Coconut Creek Homes
- Water table surprises. Coconut Creek sits on the Atlantic Coastal Ridge, and the water table here is shallow enough that a dug footer can fill with groundwater in minutes after a hard rain. We see additions where an out-of-area contractor poured a slab without drainage planning, and the threshold now stays damp from May through October.
- Dual-permit delays. In Wynmoor and the surrounding age-restricted communities, nearly every job needs both the county and the association to sign off, and the association’s review cycle can add three to six weeks if the application lands a day after a monthly meeting closes.
- Old CBS walls that fight new openings. A 1982 concrete block wall doesn’t just cut out like wood framing. We see added bedrooms where someone chipped an oversized opening, then hid the cracked lintel behind drywall instead of engineering a proper header, and the crack shows up two years later as a hairline running from the window corner.
- Flat-roof tie-in failures. Many Coconut Creek single-family homes from the late 1980s have flat or low-slope roofs that predate Hurricane Andrew codes. A second-story addition tied into that roof without proper flashing and wind mitigation creates a leak at the junction, and the leak finds the master closet before anyone notices.
Pricing for Home Additions & ADU in Coconut Creek, FL
A room addition in Coconut Creek most often lands between $45,000 and $130,000. A detached ADU starts around $90,000 and can reach $220,000 for a fully independent unit with separate metering, its own driveway, and site drainage engineered for the water table here. Garage conversions run $30,000 to $80,000 because the shell already exists. A junior ADU or interior conversion commonly falls between $45,000 and $70,000. What moves the number in Coconut Creek isn’t just square footage; it’s the HOA review clock, the water-table condition under your specific lot, and whether your 1985-era electrical panel needs a service upgrade to feed a second dwelling. We give you a line-item written estimate before any contract, and every change after that arrives as a written change order. Call (877) 610-1318 for your free estimate, and we’ll tell you honestly what the site will allow.
We Also Serve Cities Near Coconut Creek
If your property sits just outside the Coconut Creek line, we work throughout Pompano Beach, Margate, North Lauderdale, and Lighthouse Point as well. Crews serve Coconut Creek locally, and dispatch and scheduling are coordinated from our South Florida metro office in Miami. The same 90-Day Done Right Promise applies everywhere we build, whether we’re doing a kitchen in Margate or a full addition in Coconut Creek.
Key Takeaways
- Home additions in Coconut Creek: $45,000-$130,000; detached ADUs: $90,000-$220,000; garage conversions: $30,000-$80,000.
- Nearly every Coconut Creek permit requires Broward County plus your community’s architectural committee when applicable.
- The shallow water table under Coconut Creek makes drainage and slab engineering a first-class cost line, not an afterthought.
- The 90-Day Done Right Promise is written on every contract: if it’s not done right, Tom comes back and makes it right, one call.
Serving Coconut Creek, FL - Our Local Coverage Area
We’re based in the Coconut Creek 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 Coconut Creek
A home addition in Coconut Creek typically costs between $45,000 and $130,000; a detached ADU usually runs $90,000 to $220,000. The number moves based on the specific scope, your lot’s drainage condition, the age of your electrical panel, and whether your community’s architectural committee adds review time. Every estimate we provide is line-item and written before any contract. Call (877) 610-1318 for an exact quote.
Yes, we prepare and submit HOA and architectural review applications, and we file the Broward County permit in parallel so the two review clocks run at the same time. In Wynmoor and similar Coconut Creek communities, this is the step that saves weeks or costs weeks, depending on who’s running it. We attend reviews in person where permitted, and we bring the same drawings to both desks.
A typical Coconut Creek room addition takes three to six months from permit submission to final inspection, and a detached ADU usually lands between five and nine months. The HOA review cycle, the county plan review, and weather windows around hurricane season all add real calendar time. We’ll lock the schedule with a written timeline before work starts, and you’ll receive written change orders if the scope shifts.
Not in a way that matters more than the site itself. Coconut Creek’s shallow water table and the high percentage of HOA-governed communities add drainage engineering and dual-permit coordination costs that a dry inland site in, say, Margate might avoid, but the per-square-foot construction cost is comparable across Broward County. The bigger variation comes from your lot condition and your community’s review requirements. A free estimate will tell you where your project lands.
Every completed job we build carries the 90-Day Done Right Promise in writing. If something isn’t done right, one call brings Tom back to make it right. Beyond that, we stand behind our crews and the materials we specified, because we live close enough to run into you at the hardware store. Call us at (877) 610-1318 if you have a question about a project we built.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Coconut Creek, FL.







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