Fast, Reliable Garage Conversion ADU Across Miami Gardens
A garage conversion ADU in Miami Gardens typically runs $140,000 to $220,000 all-in, drawings through final inspection, when you’re working with a design-build studio that prices honestly. We handle the engineering, the permit set, and the construction under one contract at one written price. If you’re off NW 183rd, near the Stadium, or in the older Carol City blocks, call (971) 497-2402 and Nadia Ellery’s team will walk your specific lot before anyone puts a number in front of you.
Miami Gardens homes aren’t like the rest of South Florida. They’re CBS block ranches from the 1950s through 1970s, built fast during the Carol City boom, and they hide specific problems when you open up a garage wall. We know those problems because we’ve opened those walls. Our Garage Conversion ADU team has worked through the exact code triggers Miami-Dade throws at these older slabs and panels, and we write those triggers into your quote before you sign. That’s the difference between a number that holds and a number that doubles by week six.
Why Ellery ADU Studio Is Miami Gardens’s Preferred Garage Conversion ADU Company
Ellery ADU Studio has been designing and building ADUs since 2015, with 900+ permitted projects behind us. What matters for Miami Gardens specifically is how we handle the older housing stock. When we quote a garage conversion off NW 27th Avenue or in Bunche Park, we start with what the home actually is: a 1960s CBS structure with original panels, original galvanized lines, and a slab that may not meet current flood elevation. Other builders price the pretty stuff first. We price the code upgrades first, because that’s what Miami-Dade will review before anything else.
Nadia Ellery founded this studio on a simple rule, and it’s in writing: every project gets a fixed price before work starts, under Haven Standard Clause 1. No door-side upsells. No designer pointing at the builder when a surprise shows up. You get a permit set that a Miami-Dade reviewer has approved, a documented photo record of every visit, and a 365-Day Done Right Promise that says if the finished ADU isn’t built to the permitted drawings, we make it right. That’s the contract. Not a handshake.
Crews serving Miami Gardens are dispatched from our Miami (South FL) office, and a live person answers the phone 24/7. When you call with a question about your project, you won’t sit through a voicemail tree. That matters on a six-figure job.
Our Garage Conversion ADU Services in Miami Gardens
Attached Garage Conversion
The most common project we see in Miami Gardens is converting the attached garage that came with the original CBS ranch. These garages are usually 20 by 20 or 20 by 22, which gives you a studio or one-bedroom ADU with a kitchenette and bath. The catch in Miami Gardens is almost always the slab and the panel, not the framing. We scope both before we price, so your written quote includes the service upgrade and any fill work Miami-Dade’s flood rules demand.
Detached Garage Conversion
Some Miami Gardens lots, particularly in the Andover and Lake Lucerne neighborhoods, have a detached garage set toward the rear property line. Converting those means more utility trenching, but often a better ADU layout because you’re not sharing a wall with the main house. We handle the site prep and utility runs under the same single contract, so the price you see includes the trenching, the sewer tie-in, and the HVHZ-rated materials the permit set requires.
Carport Conversion
Here’s where Miami Gardens is genuinely different from almost anywhere else. That attached carport on a 1963 ranch is not a cheap enclosure project here. Miami-Dade’s high-velocity hurricane zone code treats enclosing a carport as a full structural addition, meaning the same engineered wind loads, the same impact-rated windows and doors, and the same roof-to-wall connections as new construction. A carport conversion that costs $60,000 in Texas runs closer to $150,000 in Miami Gardens, because the county will not let you call it a remodel. We don’t pretend otherwise. We price it correctly the first time, and we’ll show you the structural calc sheets that justify every line item.
Garage Partition & Bathroom Add
Some Miami Gardens homeowners don’t want to give up the entire garage. They want a partition wall, a bathroom, and a small efficiency space while keeping one parking bay. This is a common path for multigenerational households in Miami Gardens, where an adult child or a parent moves in and needs a private bath and a kitchenette. It’s also the least expensive ADU path we build, typically starting around $85,000, though the panel upgrade and any waterproofing repairs still apply.
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 Miami Gardens
We specify and coordinate prefab and modular systems from Cover, Dvele, and Boxabl, among others. What that means for a Miami Gardens homeowner is a factory-built wall or roof panel system that arrives on a truck already engineered for HVHZ wind loads, rather than a stick-built assembly that a framing crew has to build and a reviewer has to inspect piece by piece. We still handle the site prep, the foundation, the utilities, and the permit set under one contract. The brand choice becomes a specification decision, not a second project.
Common Garage Conversion ADU Problems We See in Miami Gardens Homes
- Carport slab elevations that fail flood-zone review. The original 1960s carport slabs sit too low for current Miami-Dade requirements. Miami Gardens has a high water table across much of the city, so slab-on-grade designs often need a raised or filled pad before framing starts. That’s a $8,000 to $18,000 line item most out-of-town quotes leave out entirely.
- Original 1960s electrical panels sized for a light bulb and a washer. Adding an ADU with HVAC, a kitchenette, and a bath trips Miami-Dade’s load calculations immediately. A 200-amp service upgrade is mandatory on most of these conversions. We write it into the allowance, not into a change order.
- Galvanized water lines that have been corroding for 50 years. Once we open the wall, those lines are done. Rerunning PEX to the new ADU and often to the main house is a standard part of the scope in Miami Gardens. If your quote doesn’t mention it, the builder hasn’t opened a Miami Gardens wall.
- HVHZ material costs that surprise owners from out of town. Impact-rated windows, impact doors, and engineered roof connections don’t show up in a generic garage conversion price. They always show up in a Miami-Dade permit review. We price them from the start, because we know the reviewer will ask for them.
Pricing for Garage Conversion ADU in Miami Gardens, FL
A garage conversion ADU in Miami Gardens, drawn, permitted, and built, typically runs $140,000 to $220,000. Attached garage conversions land in the $140,000 to $190,000 range. Carport conversions, because of the HVHZ structural requirements, run $150,000 to $220,000. A garage partition with a bathroom add starts around $85,000. These are not teaser numbers. They include the panel upgrade, the flood-zone fill or raised pad when required, the HVHZ-rated windows and doors, and the permit set that a Miami-Dade reviewer has actually approved.
What moves the price: whether your slab passes flood elevation, whether the panel is already 200A, and whether the original water lines have already been replaced. We can’t know those things until we open the wall or pull the records. What we can do is write those unknowns into an allowance with a fixed, pre-approved price for each one. You see the number before you sign, not after.
Call (971) 497-2402 for a written line-item quote on your Miami Gardens garage. Estimates are free, and if you already have a written estimate from another builder, we’ll give you a free second opinion on it too.
We Also Serve Cities Near Miami Gardens
Ellery ADU Studio handles garage conversion projects across Garage Conversion ADU in Miami Gardens and the surrounding South Florida cities, including Hialeah, North Miami Beach, Pembroke Pines, and Hollywood. If your property sits near the county line or you’re not sure which permitting jurisdiction applies, call us and we’ll sort it out. Same contract, same written price, no matter which side of the line you’re on.
Serving Miami Gardens, FL - Our Local Coverage Area
We’re based in the Miami Gardens 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 - Garage Conversion ADU in Miami Gardens
Because Miami-Dade County sits inside the post-Hurricane Andrew high-velocity hurricane zone, and the county’s review treats a carport enclosure as a new structural condition, not a remodel. The original 1960s carport posts and roof were never engineered for the wind loads Miami-Dade now requires. Once you enclose that carport, the roof-to-wall connections, the impact windows, and the door systems all need to meet HVHZ standards, same as a ground-up house. There is no variance for “it’s just a garage.” Call (971) 497-2402 and we’ll show you the structural drawings that explain exactly what your carport will require.
Usually not without modification. The high water table across much of Miami Gardens means the original slab elevations rarely meet current flood-zone requirements. We’ll survey the slab, pull the FEMA data for your lot, and tell you whether you need a filled pad, a raised foundation, or whether the existing slab can serve as a base. That determination happens during the design phase, not after demo starts. You’ll see the exact foundation line item in your written quote before any work begins.
Almost certainly yes. The 1960s CBS homes in Miami Gardens were built with panels sized for a very different electrical load. Adding a kitchenette, a mini-split HVAC unit, and a bathroom to a permitted ADU pushes the calculated load well past what those original panels can carry. Miami-Dade will require a service upgrade, typically to 200 amps, and will want to see it on the permit set before they approve the build. We write that upgrade into the original quote as a fixed allowance, not as a surprise later.
On 1950s and 1960s CBS construction in Miami Gardens, the three things we find most often are corroded galvanized water lines, termite-damaged or sagging roof framing, and failed waterproofing where the garage slab meets the block wall. None of these are unusual for this era of construction in this climate. What matters is that our quote has written allowances for each one, priced and approved before we touch them. When we opened a carport on a quiet street off NW 183rd near Carol City, the original slab failed flood elevation and the galvanized lines were shot. Our original quote covered both. That’s how the allowances are supposed to work.
Yes, and Miami Gardens homeowners are in a position almost no other city in South Florida can match. Hard Rock Stadium hosts NFL games, major concerts, and events like Super Bowl LIV, and the short-term rental demand around those dates is real and recurring. A permitted ADU with its own entrance, bath, and kitchenette rents during those weekends. The key is that your ADU must be a permitted unit to be rented legally, and Miami-Dade’s review will hold you to full residential code. An unpermitted conversion not only risks fines, it won’t pass an insurance or platform check. We handle the permit set as the core product, so you can rent without wondering whether the county will show up. Call (971) 497-2402 to talk through the numbers for your lot.
Contact Ellery ADU Studio in Miami Gardens
If you’re ready to see a real number for your garage conversion ADU in Miami Gardens, call (971) 497-2402. We’ll schedule a site visit, walk the property with you, and produce a written line-item quote with every code upgrade, every HVHZ material, and every allowance priced before you sign anything. Nadia Ellery’s team handles the drawings, the permit set, and the build under one contract. You get a documented photo record of every visit, a fixed written price, and a 365-Day Done Right Promise in writing.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving Miami Gardens with design-build ADU services since 2015.
Garage Conversion ADU in Nearby Areas
