Garage Conversion ADU in Pinewood: What It Costs and How Long It Takes
A garage conversion ADU in Pinewood typically runs $30,000-$80,000 and takes 8-14 weeks from permit approval to final inspection, depending on whether you’re keeping the existing slab and roof structure or rebuilding portions to meet current Miami-Dade hurricane codes. Most 33167 homeowners we work with convert a 1- or 2-car attached garage into a studio or one-bedroom unit with a kitchenette and full bath. Call (844) 665-0162 and we’ll walk your specific garage with you, usually within 48 hours.
How We Convert a Pinewood Garage Into a Living Space
We’ve done enough of these in 33167 to know where the surprises hide. Here’s how we stage a garage conversion ADU so you know what happens when.
Stage 1: Structural assessment and as-built documentation (3-5 days)
We measure everything, photograph the existing conditions, and test the slab for level and cracks. In Pinewood, that slab was often poured in the 1960s with no vapor barrier, so we core-test for moisture intrusion. You’ll decide here whether to keep the existing garage door opening as your main entry or frame it in and cut a new doorway from the main house. That choice affects your HVAC routing and your natural light plan.
Stage 2: Design, NOA-compliant material selection, and permit submission (2-4 weeks)
We draft plans showing the new kitchenette layout, bath location, and electrical service upgrade. Every product we specify must carry a Miami-Dade Notice of Acceptance - your windows, exterior door, roofing underlayment, even the fasteners. We handle the NOA verification; you choose between material tiers. This is where we also determine if your project triggers Miami-Dade’s “substantial improvement” threshold.
Stage 3: Demolition, slab prep, and rough-in (2-3 weeks)
We remove the garage door, frame the opening, and cut trenches in the slab for plumbing drains if you’re adding a bath or kitchenette. In Pinewood, we often hit that Florida oolite limestone within the first foot, so trenching for sewer lines sometimes shifts from a half-day job to a two-day operation with a hydraulic breaker. Electrical and plumbing rough-in happen in parallel, then we call for county inspection.
Stage 4: Framing, insulation, drywall, and finishes (3-5 weeks)
We frame interior walls, insulate to Miami-Dade energy code, and run dedicated mini-split lines. Because most Pinewood garages were built as unconditioned space, we upgrade the ceiling insulation and often add a vapor barrier to the slab before flooring. You’ll make your final selections on flooring, cabinets, countertops, and fixtures during this window.
Stage 5: Final inspections and certificate of occupancy (1-2 weeks)
Miami-Dade County inspects structural, electrical, plumbing, and energy compliance. We correct any punch items, then you receive your CO. The unit is now legal for rental or family use. Total elapsed time from our first site visit to keys-in-hand: typically 14-20 weeks, with permit processing being the variable we control least.
The Options You’ll Choose Between for Your Garage Conversion ADU
Every decision below moves your final number. We lay out the trade-offs honestly because “you choose the brand, we handle the build” only works when you understand what you’re choosing.
- Entry configuration: Keep the garage door opening and install an impact-rated door with sidelights, or frame it in and create a conventional entry. The door-with-sidelights route costs more upfront but gives you rental-market curb appeal; framing it in saves $1,500-$3,000 but can make the unit feel like a back addition.
- Slab strategy: Polish and seal the existing concrete, add a floating LVP floor with underlayment, or pour a new thin slab with radiant barrier. Existing slabs in 33167 often need leveling compound; if moisture readings come back high, we recommend the floating floor route to avoid trapping vapor.
- Kitchenette scale: Wet bar with mini-fridge and microwave, or full cooking with a 24-inch range and apartment-size dishwasher. The wet bar keeps you under $4,000 for cabinetry and appliances; the full kitchenette pushes toward $8,000-$12,000 depending on whether you spec KraftMaid or a stock big-box line.
- Bath layout: Compact 3-piece with a 32-inch shower, or a more spacious walk-in with a vanity you don’t have to sidestep. In a 20-foot-wide garage, every inch matters. We often recommend a pocket door here to reclaim swing space.
- Utility independence: Tie into the main house’s electrical panel and water heater, or install a dedicated meter and tankless unit. Separate utilities are required for some rental scenarios and add $3,500-$6,000, but they also make the unit more valuable at resale.
Homeowners often pair this work with interior finishes that extend beyond the ADU itself. If you’re updating the main house kitchen while we build out the garage, our Cabinets & Countertops in Pinewood crew can coordinate timing so you’re not living through two separate construction periods. Many clients also ask us to handle flooring continuity between the main house and the new unit through our Backsplash, Tile & Flooring in Pinewood team.
What Garage Conversion ADU Costs in Pinewood, FL
In the 33167 market, garage conversion ADU projects range from $30,000 to $80,000. Here’s what pushes a job toward the low or high end of that span.
| Cost Factor | Low-End Scenario | High-End Scenario |
|---|---|---|
| Size and existing condition | Single-car garage, sound slab, no structural changes | Double-car garage, slab replacement, roof rebuild |
| Plumbing/electrical relocation | Tie into existing house systems | New sewer line to street, dedicated electrical service |
| Material grade | Stock cabinets, LVP flooring, basic fixtures | Custom cabinetry, tile or engineered hardwood, Kohler or Moen fixtures |
| Code-triggered upgrades | Project stays below 50% substantial improvement threshold | Full structure must meet post-Andrew wind code, including roof straps and impact openings |
| Finish complexity | Painted drywall, standard trim | Accent walls, built-in storage, smart-home prewire |
A written estimate from us includes demolition, framing, insulation, drywall, flooring, cabinetry, countertops, plumbing and electrical rough-in and finish, permit fees, and all inspections. It does not include appliance packages, window treatments, or furniture. If your project triggers substantial improvement compliance, the estimate will separately line-item the required structural upgrades so you see exactly what’s ADU scope versus what’s code-mandated.
Call (844) 665-0162 for an exact quote - estimates are free, and we typically turn them around within 72 hours of our site visit.
What Pinewood Homes Specifically Do to This Job
Pinewood sits in unincorporated Miami-Dade County, not an incorporated city, which means every construction permit runs through Miami-Dade County’s Building and Neighborhood Compliance department. That matters for garage conversions more than most projects because you’re changing the occupancy classification of an existing structure, and the county scrutinizes these closely.
The post-Hurricane Andrew regulatory framework here shapes everything. Every building product installed must carry a Miami-Dade Notice of Acceptance - one of the most stringent local product-approval systems in the United States, entirely separate from Florida state approval and not required just over the county line in Broward. We’ve seen contractors from Palm Beach or Broward show up with perfectly good materials that get red-tagged because they lack the NOA sticker. We verify NOA compliance before anything hits your slab.
The 33167 ZIP is dominated by modest concrete block and stucco homes built primarily in the 1950s through 1970s, most of which predate post-Andrew wind-load standards. Any permitted renovation that triggers Miami-Dade’s “substantial improvement” threshold - 50% of the structure’s assessed value - requires bringing the entire structure into current hurricane-code compliance. On garage conversions, this most often shows up as roof-to-wall strap retrofits and impact-rated openings. We run the assessment early so you’re not surprised mid-project.
Then there’s the limestone. Contractors working in 33167 routinely hit Florida oolite bedrock within 12-18 inches of grade. That can snap auger bits and requires specialized equipment for any footing or underground utility work. If your garage conversion needs a sewer line extension or footer modification for a removed load-bearing wall, this isn’t theoretical - it’s a daily reality that crews from farther inland are often unprepared for on their first job here. We bring the right equipment because we’ve hit this rock before.
Year-round humidity and 60-plus inches of annual rainfall, concentrated in the June-October hurricane season, mean we also specify mold-resistant drywall, exterior-grade insulation, and careful vapor management on every Pinewood garage conversion. Stucco delamination and wood rot in any non-CBS framing elements are common failure modes we design against from the first drawing.
Serving Pinewood, FL - Our Local Coverage Area
We’re based in the Pinewood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked - Garage Conversion ADU in Pinewood
From permit approval to certificate of occupancy, most garage conversion ADU projects in Pinewood take 8-14 weeks, with permit processing adding another 4-6 weeks before construction starts. Miami-Dade County’s inspection schedule and any NOA verification delays are the variables we watch most closely. Call (844) 665-0162 and we can give you a tighter timeline after seeing your specific garage.
Yes - because Pinewood is unincorporated Miami-Dade County, every garage conversion ADU requires a county building permit, electrical permit, and plumbing permit, plus a change of occupancy classification. The project must also comply with Miami-Dade’s zoning for accessory dwelling units, which includes parking replacement requirements and setback rules. We handle the full permit package as part of our service.
Sometimes, but rarely in a way that produces a functional living space. Most Pinewood garages have no plumbing rough-in and only a single 120V circuit for garage door openers and lights. You’ll need at minimum a subpanel upgrade, dedicated HVAC electrical, and new drain lines for a kitchenette and bath. We design the routing to minimize concrete cutting, but some trenching is almost always necessary.
The lowest-cost garage conversion ADU keeps the existing slab, uses the existing roof structure without modification, ties into the main house’s utilities, and finishes with stock materials - typically landing near $30,000-$35,000. The trade-off is less rental income potential and no utility independence. We can model the ROI on both approaches so you choose with numbers, not guesswork.
Our workmanship warranty covers structural framing, electrical, plumbing, and finishes for a defined period from completion, and all manufacturer warranties on materials - from windows to cabinets to fixtures - pass through to you directly. We provide a written warranty document at closing, not a verbal promise. For specifics on your project, ask during your estimate walkthrough.
Ready to Convert Your Pinewood Garage?
We’ll walk your garage, assess the slab and structure, and deliver a written estimate within 72 hours. No pressure, no generic proposal - just the actual scope and numbers for your specific property in 33167. Call (844) 665-0162 to schedule your free on-site consultation for a garage conversion ADU in Pinewood.
Written by Raymond Estevez, Owner at Groundwork Construction Co., serving Pinewood and Miami-Dade County. If you’re exploring a garage conversion as part of a full property expansion, see our broader Home Additions & ADU in Pinewood page, or learn about our full Home Additions & ADU capabilities across South Florida.