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 Davie
A home addition or ADU in Davie typically runs $45,000-$130,000, while a new detached ADU starts around $90,000 and can top $220,000. That’s the honest range for work on Davie’s ranch-style CBS homes and large, often agriculturally zoned lots, where the Town’s equestrian overlay and Broward County’s water-table rules add permitting steps other South Florida contractors never price for. Barrett & Sons Construction has been building in Broward County since 1998, and Tom Barrett’s sons run the crews that serve Davie directly, with every permit pulled, every change order in writing, and a live person on the phone at (877) 610-1318 when you call.
Why Barrett & Sons Construction Is Davie’s Preferred Home Additions & ADU Company
Davie is not Plantation. It’s not Pembroke Pines. It’s a town that legally protects its horse trails, its agricultural zoning, and its Western character, and that means a home addition or ADU here has to clear two sets of rules: the Town’s and the county’s. Most contractors see that as a problem. We see it as the job. We have watched Broward County’s HVHZ wind codes, septic and well setbacks, and stormwater tie-in requirements shape Davie projects for years, and we scope for them before we quote, not after the first inspection stops the job.
Tom Barrett publishes his name, his address, and his license number. You can look it up before you sign anything. That’s not a marketing line. That’s the way he’s run the company since 1998. The crew that shows up in Davie will be the same crew you see at the hardware store on Saturday. And every one of them carries the Barrett & Sons name, which matters when the Town requires the agricultural overlay permit and the builder next to you says he’s never heard of it.
Our Home Additions & ADU Services in Davie
New Detached ADU
A detached ADU on a large Davie lot gives you real separation: a private entrance, a full bath, a kitchenette, and enough distance that a tenant or an aging parent has actual privacy. The Davie catch is the equestrian overlay. If your lot has a barn, a stable, or a paddock, the Town may require setback adjustments before the foundation is even staked. We pull the revised scope of work, coordinate septic and well clearances with Broward County, and tie your drainage into the stormwater grid before the slab goes in. That’s why our ADU estimates in Davie account for the dual-track permitting from day one.
ADU Site Prep & Utilities
Davie sits on low-lying, Everglades-adjacent ground. The water table is high. When you’re building a detached ADU on an open lot, that changes everything about the site work: grading, drainage, driveway access, and where the power and water lines can run. A slab poured without proper drainage can heave or flood during a summer thunderstorm, and then you’re waiting weeks to fix a punch list that should have been done right the first time. We tie every ground-disturbing project into Broward County’s stormwater management grid, and we don’t pour until the inspection sign-off is in hand.
Garage Conversion ADU
Converting a garage in Davie is often the smartest use of square footage on a ranch-style CBS home from the 1960s or 1970s. But many of those homes predate Hurricane Andrew’s 1992 code overhaul. That means load-bearing wall checks, hurricane strap verification, and impact-rated windows may all be required before the Town will sign off on the change of use. We handle that structural review as part of the scope, and we keep the price in writing from the first estimate to the final inspection. A garage conversion in Davie runs $30,000-$80,000 depending on what the existing slab and roof can carry.
Junior ADU & Interior Conversion
A junior ADU is a smaller version of the same idea: an interior conversion inside the existing footprint, often with a kitchenette and a separate entrance. For Davie homeowners with a big, underused den or a closed-off back bedroom, this is a way to add housing without touching the agricultural overlay at all. Interior work stays inside the building line, which usually simplifies the permitting. The trade-off is square footage. You’re not gaining new footprint, you’re reorganizing it. That’s a decision we’ll walk through with you on-site, in plain English, with the numbers on paper.
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 Davie
A new ADU or addition means windows, doors, and exterior openings that stand up to Broward County’s high-velocity hurricane zone standards. We install Simonton and PGT impact-rated products on Davie projects because both brands publish their wind-load ratings for HVHZ code, and because a homeowner can look up exactly what was installed. When a door or window needs to match an existing 1970s CBS opening, we measure to the sixteenth of an inch and order the correct product the first time. No mystery brands off a van.
Common Home Additions & ADU Problems We See in Davie Homes
Agricultural overlay denials for detached ADUs. A homeowner files county paperwork, gets approved, and starts construction, only to have the Town stop work because the planned foundation encroaches on a paddock or well setback. We know to check the Town’s agricultural overlay first, before we quote.
Water-table flooding during the build. Davie’s high water table means an excavation that looks dry on Monday can be full of standing water by Thursday after a storm. Proper stormwater tie-in and drainage planning prevent slab heaving and foundation damage later.
Pre-Andrew structural surprises. Many Davie homes built before 1992 lack hurricane straps and impact-rated openings. A second-story addition or garage conversion often requires structural upgrades before walls close, and that cost has to be in the original estimate, not a surprise invoice later.
Septic and well setbacks on large lots. A detached ADU needs a place for septic and a place for water, and Broward County’s setback rules know exactly where those can go. On a big equestrian lot, the shortest path between the house and the well may not be a buildable path at all. We map it before we quote.
Pricing for Home Additions & ADU in Davie, FL
| Scope | Davie Price Range |
|---|---|
| Home Addition | $45,000-$130,000 |
| ADU Construction | $90,000-$220,000 |
| Garage Conversion | $30,000-$80,000 |
What moves the price in Davie more than anything is the lot itself. An equestrian-zoned parcel that requires agricultural overlay review, county well-and-septic clearances, and stormwater tie-in work will cost more than a standard residential lot. So will a pre-Andrew CBS home that needs structural upgrades before any addition goes up. We put every allowance, every scope item, and every price change in writing before work proceeds. No surprise invoices at the end. Call (877) 610-1318 for a free estimate, and we’ll walk the site with you and explain exactly what your Davie lot will require.
We Also Serve Cities Near Davie
We bring the same local building knowledge and written pricing to Davie‘s neighboring communities. Our crews work regularly in Broadview Park, Cooper City, Pine Island Ridge, and Melrose Park, where the permitting is a little simpler but the same standards of written scope, pulled permits, and the 90-Day Done Right Promise apply.
Serving Davie, FL - Our Local Coverage Area
We’re based in the Davie 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 Davie
Does Davie require both county and Town permits for a detached ADU on an equestrian-zoned lot?
Yes. Davie is one of the only incorporated municipalities in South Florida that legally preserves equestrian zoning and horse-trail easements, and that means a detached ADU on an agricultural lot must clear both Broward County’s building codes and the Town of Davie’s agricultural overlay permitting. That’s a dual-track process. Skip the Town step and the county may approve your build while the Town stops it anyway. Call (877) 610-1318 and we’ll tell you exactly which permits your lot triggers.
How does the high water table affect a second-story addition on a 1970s CBS home?
Davie sits on low-lying, Everglades-adjacent terrain, and the high water table mainly affects the foundation and drainage work beneath the addition, not the framing going up. But it matters whether the existing slab can carry the added load, and it matters how stormwater is routed once you add more roof area. We evaluate both before quoting, and we don’t pour or frame until the tie-in is signed off.
Our garage conversion would be a rental ADU. Does Davie require impact windows or hurricane straps?
Most 1960s-1980s Davie homes predate Hurricane Andrew’s 1992 code overhaul, so any change of use to residential occupancy typically requires structural upgrades, including hurricane straps and impact-rated windows to current Broward County HVHZ standards. The exact list depends on the existing slab, roof, and openings. We’ll give you that list in writing during the estimate.
What is the real cost difference between a home addition and a detached ADU on a large Davie lot?
A home addition in Davie runs $45,000-$130,000, while a new detached ADU starts around $90,000 and can reach $220,000. The gap comes from site work, separate utility runs, septic and well clearances on large lots, and the equestrian overlay permitting that only Davie requires. If you want a rough idea for your specific lot, call (877) 610-1318 and we’ll walk it with you.
Does the Western/ranch architectural theme apply to residential ADUs on University Drive?
The Town of Davie’s Western/ranch architectural theme requirement applies along key commercial corridors like University Drive, and that review step catches out-of-town contractors who’ve never dealt with it. For a residential ADU on or near that corridor, the design-review step may add lead time to your schedule. Our Home Additions & ADU team has navigated that review before and we account for it in the timeline before we quote.
Get Your Free Davie Estimate
If you’re planning a home addition, garage conversion, or detached ADU on a Davie lot, call us at (877) 610-1318. We’ll walk the site, explain exactly how the Town’s agricultural overlay, the county’s well-and-septic setbacks, and the high-water-table drainage rules will shape your price and schedule, and we’ll put everything in writing before a single nail moves. Tom Barrett’s name, address, and license number are published and verifiable. Every job carries the written 90-Day Done Right Promise. And when you call, a live person answers.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Davie and Broward County since 1998.