







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Garage Conversion Contractor Across Shady Hollow
A garage conversion in Shady Hollow typically runs $85,000 to $160,000 for a full ADU with kitchen and bath, and $35,000 to $70,000 for a simpler living space or bedroom conversion. Most projects take 10 to 16 weeks from permit to final inspection. If you’re weighing whether to convert the garage or build new, call (254) 615-3842 for a written price before any work starts.
We work throughout Shady Hollow, from the winding streets off Brodie Lane to the larger lots near Manchaca Road and down toward Slaughter Creek. Knowing this area matters here more than most places: the mature live oaks, septic systems, and Travis County tree ordinances change how a conversion is planned before the first wall comes open. That’s the work we do every week as a Garage Conversion Contractor serving Shady Hollow families.
Why Seedling ADU Austin Is Shady Hollow’s Preferred Garage Conversion Contractor Company

Shady Hollow homeowners call us because we write the price down before demo starts, and that price includes the code upgrades a 1970s or 1980s garage almost always needs once walls are open. Ben Ortega leads our team with a simple rule: if the permit triggers an upgrade, the homeowner should know the cost before the inspector does. That’s why we build allowances into every Shady Hollow contract.
Our crews arrive in uniform, background-checked, and we protect what’s already working in your home. Shoe covers and drop cloths on every visit. A photo of the clean-up sent to you before the crew leaves. Pet-safe products where there’s a choice. Families with kids in Shady Hollow schools and dogs in the yard don’t have to wonder who’s walking through the house or what they might track in.
Every completed job is covered by the 365-Day Done Right Promise, in writing. If something isn’t right, we make it right. That promise matters even more in Shady Hollow, where tree-root shifting in clay soil can reveal itself months after a job closes. We stand behind the work, and we answer the phone when you call. A live person, 24/7, not a voicemail tree. That’s the Cedarwell Care Promise, and it’s how we’ve built our reputation across Shady Hollow.
Garage Conversion ADU in Shady Hollow
A Garage Conversion ADU in Shady Hollow means turning an existing attached or detached garage into a fully self-contained dwelling: its own entrance, kitchen, bath, and sleeping area, all permitted through Travis County and built to current code. This is the right move when a homeowner wants rental income, a private space for aging parents, or a long-term guest suite without adding new foundation on an already-treed lot.
What the permit review actually checks
Travis County reviews septic capacity and setback requirements before approving any ADU conversion. On a one-acre lot with a mature live oak canopy, that often means positioning the ADU’s plumbing in a specific corner and keeping the existing driveway approach. We handle that review process directly, so you’re not chasing paperwork.
Foundations and tree protection
Some Shady Hollow garages sit on slabs poured decades ago with no moisture barrier. If roots have compromised the edge, we may pour a new thickened-edge foundation segment rather than trying to tie into failing concrete. The goal is a dry, stable floor that stays that way through summer humidity and heavy rain events.
Garage Apartment Conversion in Shady Hollow

A Garage Apartment Conversion in Shady Hollow transforms an underused garage into a comfortable apartment-style living space, often with a compact kitchenette, full bath, and separate exterior door. Homeowners on the larger lots east of Brodie Lane frequently choose this route when they want housing for a returning adult child or a caretaker, rather than a fully permitted rental ADU.
Detached garage realities
A detached garage from the 1980s or 1990s often has a slab at grade, which means flooding risk if drainage isn’t handled correctly. We evaluate the slope, the downspouts, and the nearest drainage swale before quoting. On clay-rich Shady Hollow soil, slight regrading can be the difference between a dry apartment and a damp one.
Interior scope that keeps the existing shell
We keep the exterior frame when it’s sound and reframe interior walls only where the layout demands it. That saves money and preserves the look of a Shady Hollow lot that’s grown in around the garage over decades. Insulation, drywall, mini-split HVAC, and a new electrical subpanel typically round out the scope.
Trusted Brands We Service in Shady Hollow
Seedling ADU Austin works hands-on with the brands serious ADU buyers research before calling anyone: James Hardie siding and trim for exteriors that hold up to Shady Hollow humidity, Abodu for prefab ADUs when a detached new build makes more sense than converting a compromised garage, and Cover or Dvele panels when time and precision matter. We don’t push one brand because it’s easier for us; we spec what fits your lot and your budget. Our Shady Hollow customers get full access to our material library and our direct relationships with these manufacturers, which means no guessing games on lead times or finish quality.
Common Garage Conversion Contractor Problems We See in Shady Hollow Homes
- Protected live oaks and root zones. Travis County ordinance protects mature live oaks, and even a conversion that doesn’t expand the footprint can trigger a tree survey. We’ve seen projects redesigned at the foundation stage because roots ran under the garage slab, so we survey early and design around critical zones from the start.
- Septic capacity surprises. Many Shady Hollow homes are on septic, and adding a bedroom or a second kitchen changes the county’s wastewater calculation. We file the septic review as part of the permit package, not as an afterthought, so you know before demo whether your system needs an upgrade.
- Aluminum wiring and outdated panels. Garages from the 1970s through 1990s frequently have aluminum branch circuits or undersized panels. Opening the walls for a conversion triggers a code-required electrical upgrade. We write that upgrade into the contract as an allowance with a specific dollar range, so it doesn’t arrive as a mid-project surprise.
- Moisture and drainage failures. Clay-rich soil in Shady Hollow holds water against foundation edges after heavy rain. Garages built without proper grading or moisture barriers show rot at the sill plate and efflorescence on the slab. We address drainage and vapor barriers before framing, because insulation over a wet slab only hides the problem for a season.
Pricing for Garage Conversion Contractor in Shady Hollow, TX
A basic garage-to-living-space conversion in Shady Hollow runs $35,000 to $55,000. A garage-to-bedroom with a half bath lands between $45,000 and $70,000. A full Garage Conversion ADU with kitchen, bath, separate entrance, and independent utilities runs $85,000 to $160,000, depending on whether it’s attached or detached and what the tree survey and septic review require. Allowances for electrical upgrades, drainage corrections, and septic capacity checks are written into every contract before demo starts. You’ll never get a change order that wasn’t priced and approved in writing first. Call (254) 615-3842 for a free, no-pressure estimate on your specific garage.
We Also Serve Cities Near Shady Hollow
Beyond Shady Hollow, our crews serve Austin, Round Rock, Leander, and Cedar Park. If your property sits near the Travis-Hays county line or you’re just outside the Shady Hollow boundary, call us and we’ll confirm coverage. The same written pricing and 365-Day Done Right Promise apply everywhere we work.
Serving Shady Hollow, TX - Our Local Coverage Area
We’re based in the Shady Hollow 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 About Garage Conversion Contractor in Shady Hollow
A protected live oak can still affect your conversion even without added square footage. Travis County may require a tree survey if the garage sits within the critical root zone, which is typically a radius of one foot per inch of trunk diameter. If roots run under the slab, we design the foundation to avoid cutting them, often using pier supports or a thickened edge on the side away from the tree. Call (254) 615-3842 to have us check your specific lot before you commit.
Opening the walls of a 1970s to 1990s garage typically triggers electrical upgrades (aluminum wiring replacement, panel upgrade to 200-amp, AFCI/GFCI protection), insulation to current energy code, seismic or wind strapping where required, and smoke/CO detection tied to the main house. These aren’t optional once the permit is filed. We price each as a line-item allowance in your contract, so the cost is visible before demo begins. Call (254) 615-3842 to walk through what your specific garage will need.
We build allowances into the contract before demo starts for the known unknowns: rotted sill plates, failed septic lines, aluminum wiring, slab cracks. When we open the walls and find something outside the allowance, we stop, photograph it, price it, and get your written approval before touching it. You are never asked to approve a change order under pressure mid-day. Call (254) 615-3842 and ask to see a sample contract; we’ll show you exactly how the allowance structure works.
Yes, in most cases, but the septic system must have documented capacity for the additional bedroom, and Travis County requires a wastewater review as part of the permit. If the system is undersized or aging, you may need an upgrade or an alternative system, which we price as a separate line item before construction starts. Seedling handles that review directly, so you’re not navigating county paperwork alone. Call (254) 615-3842 to get a straight answer about your system.
We install a properly sized mini-split with a dedicated circuit, add a vapor barrier under the slab or over the existing one, regrade the exterior slope to move water away from the foundation edge, and upgrade downspouts to discharge at least six feet from the structure. On clay soil, we often add a shallow French drain along the uphill side. Every one of those is written into the contract, not added later. Call (254) 615-3842 to schedule a drainage walkthrough of your garage.
Written by Ben Ortega, Owner at Seedling ADU Austin, serving Shady Hollow homeowners with garage conversions, ADUs, and home additions backed by the 365-Day Done Right Promise.




