Garage Conversion ADU in Davie - One Fixed Price, Permits Handled

What Does a Garage Conversion ADU in Davie Actually Involve?

A garage conversion ADU turns your existing attached or detached garage into a permitted, self-contained living unit with its own kitchenette, bathroom, sleeping area, and separate entrance. In Davie, FL, most conversions we handle run 8 to 14 weeks from permit pull to final inspection, with budgets typically landing between $30,000 and $80,000 depending on whether the garage needs structural reinforcement, plumbing relocation, or full electrical service upgrades. Call (844) 665-0162 and we’ll walk your specific garage in Davie this week - estimates are free and carry no obligation.

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How We Convert a Davie Garage Into a Legal ADU

Every garage conversion ADU follows a five-stage sequence. Knowing the order helps you plan around noise, parking loss, and the decisions you’ll need to make.

Stage 1: Feasibility and existing conditions (Week 1)

We measure the garage footprint, check the slab condition, and verify what utilities already serve the space. Many Davie garages built in the 1970s and 1980s sit on monolithic slabs with no vapor barrier beneath - we test for moisture intrusion and slab leveling issues right away. You’ll decide at this stage whether you’re keeping the existing roof structure or raising ceiling height, which directly affects your permit path.

Stage 2: Design and permitting (Weeks 2-4)

We produce code-compliant plans for Broward County Building Division and, if your property sits within Davie’s equestrian overlay zones, coordinate with Davie Planning and Zoning for use compatibility. This dual-agency sequence is specific to Davie and adds roughly one week compared to standard Broward permitting. You’ll finalize your kitchenette layout, bathroom location, and whether you’re adding a separate HVAC mini-split or extending your main house system.

Stage 3: Structural and utility rough-in (Weeks 5-8)

We frame interior partitions, reinforce roof-to-wall connections to meet post-1994 Florida Building Code wind standards, and run new electrical, plumbing, and possibly gas lines. In Davie’s western areas near the Everglades transition zone, we often encounter shallow groundwater during any required footing work for additions or porch enclosures tied to the conversion, including any Iron Fence in Davie work that may accompany the project. You’ll make your material selections here - flooring, cabinetry, countertops, fixtures - so orders arrive before we need them.

Stage 4: Insulation, drywall, and finishes (Weeks 9-11)

We install insulation to meet Florida energy code, hang and finish drywall, then move to flooring, cabinetry, and trim. If you’re upgrading from a non-impact-rated garage door opening to a code-compliant egress door or window, we handle that structural modification now. This is when the space starts feeling like a real apartment.

Stage 5: Final inspections and certificate of occupancy (Weeks 12-14)

Broward County inspects electrical, plumbing, mechanical, and structural compliance. We correct any punch-list items and hand over your certificate of occupancy, which you’ll need for legal rental or family occupancy. The whole process from our first site visit to your CO typically spans three to three-and-a-half months.

The Spec Choices That Shape Your Garage Conversion ADU

Every decision below moves your final number and how the space functions long-term. We lay out the honest trade-offs so you’re not guessing.

• Kitchenette scale: wet bar vs. full cooking. A wet bar with mini-fridge, microwave, and sink runs $3,500-$6,500. A full kitchenette with range, dishwasher, and standard cabinetry from KraftMaid or Wellborn starts around $8,000 and climbs with countertop selection. Davie rental market data suggests full kitchens command 15-20% higher monthly rents if you’re building for income.
• Bathroom location: existing plumbing wall vs. new trenching. If your garage shares a wall with the main house bathroom or kitchen, we can often tie into existing drain lines with minimal concrete cutting. Moving plumbing to the opposite corner of a 20-foot-deep garage adds $2,500-$5,000 in Davie due to slab work and Broward’s required flood-zone elevation checks.
• HVAC: mini-split vs. central extension. A dedicated mini-split system ($2,800-$5,500) gives your tenant independent climate control and avoids overloading your main house unit. Extending central ductwork works only if your existing system has capacity, which 1980s Davie homes rarely do without upsizing.
• Flooring: luxury vinyl plank vs. tile vs. polished concrete. LVP runs $3.50-$6.00 per square foot installed, handles moisture well on Davie’s older slabs, and installs fast. Tile adds weight your slab may not need but lasts decades. Polished concrete keeps the industrial feel and works if your slab is already in good shape.
• Egress and natural light: window cutouts vs. door conversion. Florida code requires natural light and emergency egress. Converting an existing garage service door to a code-compliant egress door costs less ($1,200-$2,800) than cutting a new window opening into a concrete block wall ($2,500-$4,500), but the window adds more livability and rental appeal.
• Exterior finish match: stucco vs. James Hardie siding. Most Davie ranch homes wear original stucco. Matching it exactly is difficult; we often recommend a deliberate contrast with Hardie panel or lap siding where the garage door once sat, which also improves impact resistance in wind-prone zones.

What Garage Conversion ADU Costs in Davie, FL

Garage conversion ADU projects in Davie typically range from $30,000 to $80,000. Here’s what pushes a job toward the low or high end of that span.

Our written estimates include demolition, framing, rough and finish electrical, plumbing, HVAC rough-in, insulation, drywall, flooring, cabinetry, countertops, fixtures, paint, and final inspections. What typically sits outside that base: separate meter installation for independent utility billing ($1,800-$3,500), landscape restoration, and any required septic or sewer lateral work if your Davie property isn’t on municipal sewer. Call (844) 665-0162 for an exact quote on your garage - estimates are free.

What Davie Homes Specifically Do to This Job

Davie’s housing stock reshapes nearly every Home Additions & ADU project we take on here. The town’s concentration of 1960s-1980s concrete block ranch homes means we’re often working with original slabs that lack modern moisture barriers, roof structures that predate Hurricane Andrew-era wind codes, and electrical panels that weren’t sized for an additional dwelling unit.

The western parcels near SW 130th Avenue and the Orange Drive corridor sit within Davie’s active equestrian overlay districts. If your property carries A-1 or equestrian zoning, any substantial improvement - including a garage conversion ADU that adds square footage or changes the building footprint - triggers that specialized two-agency permitting sequence through Davie Planning and Zoning before Broward County Building Division will touch your structural permit. Out-of-town contractors who miss this step lose weeks to rejected applications.

Davie’s position on the coastal ridge transition also matters. The higher, less predictable water table west of University Drive means slab-on-grade work occasionally requires dewatering during any necessary footing modifications. And several Davie neighborhoods fall within FEMA Special Flood Hazard Areas, so finished floor elevation requirements may apply even to existing structure conversions if the work qualifies as “substantial improvement” under federal guidelines.

We’ve also found that many Davie garages in the 33314 ZIP and surrounding areas were built as unconditioned space with minimal roof insulation and single-layer stucco walls. Bringing them up to current Florida energy code for habitable space typically requires more envelope work than comparable conversions in newer Broward municipalities.

Frequently Asked - Garage Conversion ADU in Davie

Ready to Convert Your Davie Garage?

We’ll walk your garage, confirm what’s feasible under Davie’s specific zoning and code requirements, and deliver a written estimate with real numbers - no pressure, no deposit required to find out where you stand. One contractor handles every phase from permit to paint. Call Groundwork Construction Co. at (844) 665-0162 to schedule your free on-site estimate for a garage conversion ADU in Davie.

Written by Raymond Estevez, Owner at Groundwork Construction Co., serving Davie and South Florida homeowners.