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AfterHow Much Does ADU Construction Cost in Fort Lauderdale?
ADU construction in Fort Lauderdale typically costs between $90,000 and $220,000 for a complete project in 2026, with most garage conversions landing between $110,000 and $160,000. Detached units with a full kitchen and bathroom run higher, while attached conversions with shared utility lines sit at the lower end. The price depends on square footage, foundation work, FEMA flood-zone requirements, and whether you’re converting an existing structure or building new from the slab up.
If you’re weighing whether an ADU makes financial sense, the short version is this: in Fort Lauderdale’s rental market, a well-built one-bedroom ADU can generate $1,800 to $2,600 a month in rent depending on the neighborhood, so most homeowners recoup their investment faster here than almost anywhere else in Florida. That said, the construction bill is real, and the details of your property will move that number significantly.
Key Takeaways: ADU Construction Costs in Fort Lauderdale
- Full budget range: $90,000 to $220,000 for most projects
- Garage conversions: $85,000 to $130,000 (lower when the slab and framing are sound)
- Detached new-build ADUs: $150,000 to $220,000+ depending on square footage
- Biggest cost drivers: flood-zone elevation, impact windows, new utility connections, and site access
- Permits and impact fees: $8,000 to $18,000 in Fort Lauderdale depending on the scope
- Our process: written price before work starts, live arrival tracking, and a 365-Day Done Right Promise on every project
This guide breaks down exactly where the money goes, what Fort Lauderdale-specific factors push costs up, and how to keep your ADU project from running over budget. You can also see how we approach the work on our ADU Construction in Fort Lauderdale page.
ADU Construction Cost Breakdown (2026)
Here’s what a typical ADU build looks like line by line in the Fort Lauderdale market. These numbers assume a 600 to 800 square foot one-bedroom unit with a full bathroom and a kitchenette or full kitchen. If you’re converting a garage that’s already framed, roofed, and sitting on a slab, some of these line items shrink or disappear entirely.
| Cost Component | Typical Range (Fort Lauderdale, 2026) |
|---|---|
| Design & architectural drawings | $4,000 – $9,000 |
| Permits, impact fees & inspections | $8,000 – $18,000 |
| Site prep & foundation | $10,000 – $28,000 |
| Framing (walls, roof structure) | $18,000 – $38,000 |
| Roofing | $7,000 – $16,000 |
| Impact windows & exterior doors | $9,000 – $22,000 |
| Electrical (panel, wiring, fixtures) | $8,000 – $16,000 |
| Plumbing (bathroom, kitchen, water lines) | $9,000 – $18,000 |
| HVAC (mini-split or tie-in) | $4,500 – $10,000 |
| Insulation & drywall | $6,000 – $12,000 |
| Flooring | $3,500 – $8,000 |
| Bathroom build-out | $9,000 – $22,000 |
| Kitchen or kitchenette | $8,000 – $25,000 |
| Interior paint & finishes | $4,000 – $9,000 |
| Site cleanup & final touches | $2,500 – $6,000 |
| Contingency (5 – 10%) | $5,000 – $15,000 |
Those line items add up fast, which is why we put the written price in front of you before any work starts. No allowance games, no “we’ll figure it out later.” The number you approve is the number you pay unless you change the scope yourself mid-project.
Two things in that table deserve extra attention for Fort Lauderdale specifically. First, the impact windows line. Florida building code (including Broward County) requires impact-rated glazing or shutters on new residential structures in the High Velocity Hurricane Zone. That’s not a suggestion, and it can’t be value-engineered out. Garrison, single-pane windows from a big-box discount bin are not an option here. Second, the foundation number swings wildly depending on your flood zone. A home in Victoria Park or Sailboat Bend may already have an elevated slab that works fine, while a property in parts of Shady Banks or Riverside Park might need additional fill or pier work to meet FEMA elevation requirements. That single factor can move your total by $20,000 or more.
What Affects ADU Construction Pricing in Fort Lauderdale
Every property is different, and in Fort Lauderdale, the differences are often more extreme than you’d see in a cookie-cutter subdivision. Here are the factors that move the needle most.
- FEMA flood zone and required elevation. Huge chunks of Fort Lauderdale sit in AE flood zones. If your ADU’s finished floor has to be raised, you’re looking at additional fill, taller stem walls, and sometimes a complete redesign of the entrance. In areas like Rio Vista or Colee Hammock, this can add $15,000 to $30,000. In higher-ground neighborhoods like Imperial Point or Coral Ridge Isles, you may avoid this entirely.
- Detached new build vs. garage conversion. Converting an existing garage reuses the foundation, framing, and roof, which usually saves $40,000 to $80,000 compared to a ground-up detached unit. But garage conversions in Fort Lauderdale have a quirk: many older homes in neighborhoods like Middle River Terrace or Croissant Park have garages that were never permitted as living space. If the slab wasn’t poured to residential code, you may need to cut and pour footings anyway.
- Impact-rated windows and doors. This is non-negotiable in Broward County. A standard 6-foot sliding glass door in impact glass runs $1,800 to $3,500 installed. A non-impact door from a national supplier would be $600 to $1,000. Multiply that across every opening in your ADU and you’ll see why this line item stings. It’s also why we spec manufacturer-backed products from partners like GAF and James Hardie rather than no-name imports that won’t pass inspection.
- Utility connections, especially sewer. Tying into the existing sewer line is cheap if your ADU sits next to the main house. If you’re building at the back of a deep lot in an older neighborhood like Tarpon River, the distance from your new bathroom to the city sewer tap can mean trenching across 60 to 100 feet of yard. That’s $4,000 to $9,000 just to move waste out, before you’ve bought a single fixture.
- Site access and demolition. A backyard ADU in a tight Flagler Village lot with no alley access may require a smaller crew, hand-carried materials, and a dumpster that has to sit in the street for weeks. Access issues add 5% to 10% to the total project cost almost every time. Meanwhile, a wide side yard that lets a concrete truck back right up to the pour site keeps things cheaper.
- Finish level. You can put a basic Kohler tub-shower combo and a stock KraftMaid vanity in a rental ADU for under $6,000 combined. Or you can spec a curbless walk-in shower with a Schluter waterproofing system (the orange membrane that keeps water from ever reaching your framing) and a Caesarstone countertop for triple that. Neither one is wrong. But the gap between “rental grade” and “in-law suite you’d live in yourself” is real money.
How to Save on ADU Construction
Saving money on an ADU doesn’t mean cutting corners that come back to bite you. It means making smart decisions early, before you’ve paid for drawings or pulled permits.
Start with a conversion if you have the structure. If your home in Lauderdale Manors or Progresso Village has a two-car garage you don’t use, converting it is almost always the cheapest path to an ADU. You keep the slab, the roof, and usually the exterior walls. It’s not glamorous, but it works. Expect to spend $85,000 to $130,000 rather than $150,000 and up.
Get your drawings right the first time. Permit resubmission fees in Fort Lauderdale add up. Every revision cycle costs money and, more importantly, time. A design that misses the current FEMA flood map or the 2023 Florida Building Code update will bounce back from the city within days. We handle this on every job because getting a permit approved in Broward County is a process you don’t want to learn by trial and error.
Lock your allowances before work starts. Allowances are where contractors hide profit. A “bathroom allowance” of $8,000 sounds fine until you discover that a properly waterproofed shower and the vanity you actually wanted costs $14,000, and now you owe a change order. We don’t play that game. Your written price includes real line items with real material selections, not vague allowances.
Think about the rental math before you over-build. A $220,000 ADU in Fort Lauderdale rents for maybe $2,600 a month. A $140,000 ADU rents for maybe $2,100. That extra $80,000 in build cost buys you $500 more in monthly rent. It takes over 13 years to make that math work. Unless this ADU is for family and the finish quality matters more than the return, build for the rental market, not for a magazine spread.
The best way to know what your specific property needs is to get a real number from someone who’s actually built ADUs in Fort Lauderdale. Our estimates are free, and the price we put in writing is the price you’ll pay. Call (754) 354-7423 and we’ll come out, walk the property, and tell you straight what it will cost.
ADU Construction FAQs
How much does an ADU cost per square foot in Fort Lauderdale?
ADU construction in Fort Lauderdale runs $180 to $320 per square foot depending on whether you’re converting an existing structure or building new. A 600-square-foot garage conversion at $190 per square foot lands around $114,000, while a 700-square-foot detached build at $280 per square foot is closer to $196,000. Call (754) 354-7423 for a per-project number that accounts for your actual lot, flood zone, and finish level.
Is it cheaper to convert a garage or build a new ADU in Fort Lauderdale?
Converting a garage is almost always cheaper – typically $85,000 to $130,000 versus $150,000 to $220,000 for a detached new build. You’re reusing the foundation, roof, and exterior walls instead of paying for them. The exception is when the existing garage slab is too thin for habitable space, which happens in older Fort Lauderdale neighborhoods, and you have to pour footings anyway.
Can you build an ADU in a Fort Lauderdale flood zone?
Yes, but it costs more. In an AE flood zone, the finished floor of your ADU typically needs to sit at or above the base flood elevation, which may mean $15,000 to $30,000 in additional fill, stem wall height, or pier foundation work depending on your lot. Some neighborhoods like Shady Banks and parts of Riverside Park see this more often than higher-ground areas like Imperial Point.
How long does ADU construction take in Fort Lauderdale?
Most ADU projects in Fort Lauderdale take 5 to 9 months from design to final inspection. Permitting alone can run 2 to 4 months depending on the city’s current queue and whether your plans get flagged for revision. Construction for a garage conversion is usually 3 to 5 months; a detached new build runs 5 to 7 months. We provide live arrival tracking and photo updates throughout, so you’re never guessing where things stand.
Do I need a permit to build an ADU in Fort Lauderdale?
Yes. Every ADU in Fort Lauderdale requires building permits, and depending on your zone, a zoning review and floodplain review as well. Permit fees, impact fees, and inspection costs typically total $8,000 to $18,000 for a standard one-bedroom ADU. Skipping permits is not a shortcut – unpermitted work gets flagged when you sell, refinance, or file an insurance claim, and the fix usually costs more than the permit did.
Why Fort Lauderdale Homeowners Choose Sawyer Remodel Fort Lauderdale
We’re a general contractor that’s been doing remodeling work under the Relay Home Co. family since 2005, and we’ve built our entire process around one idea: you should know exactly what a project costs, who’s showing up, and what’s happening at every step. That’s what we call The Relay Standard, and it’s not a tagline. It’s the way every job runs.
Here’s what that looks like on an ADU project. You get a written price before any work starts – not an estimate with fuzzy allowances, but a real line-item number you can hold us to. You get live arrival time tracking so you know when our background-checked, uniformed technicians are pulling up, not some vague four-hour window. You get photo updates before and after at every major milestone. And when the project closes, every ADU we build is covered by our 365-Day Done Right Promise: if it’s not done right, we make it right, in writing, for a full year.
Luca Romano leads our Fort Lauderdale team, and he’ll be the one walking your lot, reading your survey, and telling you straight what’s feasible and what it costs. When questions come up mid-project – and they always do – you’ll call and talk to a live person, 24/7. No voicemail tag. No “let me check on that and get back to you next week.”
If you’re thinking about adding an ADU to your property, start with a conversation. We’ll come out, look at your site, talk through your options, and put a real number in front of you. No pressure, no deposit requirement just to get a price. Call (754) 354-7423 today and get your ADU project moving. Or if you’re still in the research phase, take a look at our home page to see the full scope of what we do.
Pricing reflects the Fort Lauderdale market as of 2026. Sawyer Remodel Fort Lauderdale offers free estimates – call (754) 354-7423.
Written by Luca Romano, Owner at Sawyer Remodel Fort Lauderdale, building ADUs and remodeling homes in Fort Lauderdale since 2005.
What Our Customers Say
"Booked a kitchen consult online and got a project timeline in the app. Crew texted each morning with the day's plan. Cabinets, counters, and backsplash look great."
- Erin K."Good renovation. The countertop slipped a week, but I got a text and a new date right away."
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