Fast, Reliable Garage Conversion ADU Across Orlando
A garage conversion ADU in Orlando typically runs $165,000-$245,000 all-in, drawings through final inspection, depending on whether you’re converting an attached garage in Baldwin Park, a detached block garage in Conway, or a carport in Dr. Phillips. The single biggest variable most Orlando homeowners don’t see coming is the HOA document review, which we complete before the permit set is drawn, not after. Call (971) 497-2402 and we’ll walk the site, read the governing documents, and put a written price in front of you before any work begins.
Our Garage Conversion ADU team has scoped conversions from Lake Nona to College Park, and we know which neighborhoods send a project sideways at which step. That local knowledge is priced into the quote, not discovered at your expense halfway through the build.
Why Ellery ADU Studio Is Orlando’s Preferred Garage Conversion ADU Company
Ellery ADU Studio has designed, permitted, and built 900+ ADUs since 2015, every one with a written price before work started and a documented photo record when work was complete. In Orlando that matters more than most markets because the vacation-rental economics change what gets built: private entrances, pool access, full kitchens sized for short-stay tenants, and a permitting path that survives HOA scrutiny.
Nadia Ellery runs the studio, and the license number appears on every page of the permit set we hand you. The Haven Standard governs the work: Clause 1 puts the price in writing before any work begins; Clause 5 locks the scope at signing, so there are no door-side upsells. If the finished ADU is not built to the permitted drawings, we make it right, in writing, before the project starts. A live person answers calls 24/7 because Orlando homeowners often ask their most pointed questions after the kids are asleep and the STR spreadsheet is open.
Our Garage Conversion ADU Services in Orlando
Attached Garage Conversion
Attached conversions in Orlando’s 1960s-1990s concrete block ranches move fast because the roof, slab, and two walls already exist. The challenge is usually thermal: a west-facing block wall with no attic insulation turns a converted garage into an oven by 3 p.m. in July. We size the mini-split for Orlando’s actual summer, which runs 90°F afternoons at 80% humidity, and we document the insulation layers in the permit set rather than nodding at them during the walkthrough.
Detached Garage Conversion
Detached garage conversions are the workhorse of Orlando’s vacation-rental ADU market. A two-car detached garage in Dr. Phillips or Conway sits on its own slab with its own roofline, which means the county treats it more like a new structure for setback and drainage review. We saw-cut capillary breaks, install vapor barriers and Z-flashing at slab edges, and route condensate lines clear of pool screen enclosures. The quote accounts for all of that before you sign because grading and moisture corrections on a detached slab are line items, not surprises.
Carport Conversion
Carport conversions in Orlando are common on older block homes where the carport was added decades ago and never properly sloped. Orlando’s afternoon thunderstorms send sheet flow under door thresholds if the existing grade hasn’t been corrected. We include the re-grade and a new threshold detail in every carport conversion scope, and we photograph the existing slope before work starts so the before and after are documented, not remembered.
Garage Partition & Bathroom Add
A garage partition and bathroom add is the most efficient path to a rentable unit when you want to keep part of the garage for storage or a workshop. We frame the partition wall, add a bathroom that meets Florida accessibility minimums, and seal the separated living space with its own vapor barrier and dedicated HVAC. In Orlando’s humidity, the bathroom exhaust fan can’t just blow into the attic; every unit we build vents to the exterior with a damper rated for year-round moisture. Garage JADU conversions follow the same details at a smaller scale and often pair well with an attached primary dwelling.
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 Orlando
We specify and coordinate prefab and modular systems from Cover, Dvele, and Boxabl within the same single contract that covers drawings, permits, and construction. For Orlando homeowners, these systems solve a real problem: a factory-built panel or module arrives with tightly controlled joints that resist the humidity and daily thermal swings far better than stick-framed walls assembled in August. We handle the foundation, the site work, and the mechanical connections; the brand ships the system; one contract covers all of it. No finger-pointing between designer and builder, because there is only one entity responsible.
Common Garage Conversion ADU Problems We See in Orlando Homes
- HOA demolition orders after a fully permitted build. Baldwin Park, Lake Nona, and Celebration sit inside master-planned communities whose CC&Rs prohibit ADUs outright. Florida’s SB 1660 preemption binds local governments only; a private association can still force an owner to tear down a permitted garage conversion. We read the governing documents before we draw the first line, and we flag restrictions in the written scope, not in a hallway conversation.
- Slab-edge moisture wicking into block walls. Orlando’s flat topography and seasonally high water table mean a detached garage slab often sits too close to grade. Without a saw-cut capillary break and Z-flashing, the block wall pulls groundwater upward and the new living space develops musty drywall within two years. We correct this on every detached conversion and photograph the correction before it’s covered.
- Undersized HVAC on west-facing block walls. A converted garage with an uninsulated west wall and no attic insulation hits 85°F and 70% humidity by mid-afternoon in July, which is exactly when a vacation-rental guest is checking in. We size the unit for Orlando’s real summer and spell out the load calculation in the permit set.
- Stormwater sheet flow under new door thresholds. Orlando’s afternoon thunderstorms drop an inch of rain in 30 minutes. If the existing grade slopes toward the garage, the new living space floods. We correct the grade before pouring or laying any finished floor, and we route downspouts and condensate lines to a dry well clear of pool enclosures and property lines.
Pricing for Garage Conversion ADU in Orlando, FL
An attached garage conversion ADU in Orlando runs $165,000-$210,000; a detached garage conversion runs $185,000-$245,000; a carport conversion runs $140,000-$175,000; and a garage partition with bathroom add runs $95,000-$125,000. These are all-in ranges: drawings, permit set, HOA document review, materials, labor, and final inspection. What moves the number in Orlando specifically is the drainage correction, the HVAC load, septic and well setbacks on acreage, and any HOA requirement that forces a different placement or a privacy screen. Every quote is a written price under Haven Standard Clause 1, so the number you read is the number you sign. Call (971) 497-2402 to schedule a free site walk and get your written estimate.
We Also Serve Cities Near Orlando
Beyond Orlando proper, we scope garage conversion ADUs in Kissimmee, Lakeland, Daytona Beach, and Melbourne. The permitting authority changes at the city line, sometimes mid-neighborhood, and our Orlando office coordinates scheduling and dispatch across all of these service areas under the same written-price standard.
Serving Orlando, FL - Our Local Coverage Area
We’re based in the Orlando 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 Orlando
No. An attached garage conversion typically inherits the principal structure’s setbacks because it shares a wall and roofline; a detached garage conversion is reviewed more like a new accessory structure and must meet the county’s side-yard and rear-yard setback rules on its own footprint. In practice, that means a detached conversion in a narrow Orlando lot may need a setback variance, and the application has to be in the permit set from day one. Call (971) 497-2402 and we’ll check your lot’s specific setback math before quoting.
A detached garage ADU on acreage with a septic system must keep the new living space, the bathroom, and any plumbing trench clear of the drain field and the reserve area the county requires for future repair. The same applies to the wellhead. On a half-acre lot, that often means the ADU can only sit in one corner of the parcel, which then drives the grading and stormwater plan. We pull the septic as-built and plot the setbacks before we draw the ADU, so the permit set reflects reality, not an optimistic sketch.
In many Baldwin Park sub-associations, no. Baldwin Park’s CC&Rs generally prohibit separate rental units and often restrict carport enclosures entirely, and Florida’s SB 1660 preemption does not bind private HOAs. We read the governing documents before quoting so you don’t pay for drawings on a build the association can order demolished. If the CC&Rs do allow it, the vacation-rental use itself may still require a city business tax receipt and a conditional use review, which we scope as part of the permit set.
At minimum, Orlando’s climate requires a capillary break at the slab edge, a vapor barrier under the finished floor, Z-flashing at any block-wall-to-slab transition, exterior-vented bathroom exhaust with a damper, and a dedicated HVAC system with a load calculation that assumes 90°F afternoons at 80% humidity. We saw-cut the capillary break, install the barrier, document each detail with photos, and include every one of these items in the written scope. No verbal promises; the permit set carries the proof.
Because a detached ADU has its own footprint and its own door thresholds sitting on open ground. An attached conversion shares the house’s existing grade and drainage plane; a detached unit creates a new low point where Orlando’s afternoon thunderstorms will send sheet flow unless the grade has been corrected away from the new structure. On an open lot, that means a swale or a dry well sized for Orlando’s rainfall intensity, and the plan has to be in the permit set with the county’s stormwater review before you sign.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving Orlando since 2015.
Call (971) 497-2402 for your written estimate. We’ll walk the site, read the HOA documents if they exist, check septic and well setbacks on acreage, and hand you a fixed price before any work begins. The number on the page is the number you sign; that’s Haven Standard Clause 1, and it’s in writing.