







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 Manor
Garage conversions in Manor typically run $28,000 – $52,000 for a basic attached conversion with a bathroom, and $42,000 – $78,000 for a detached garage ADU with full kitchen and separate utility hookups. Those numbers hold true for most production-built homes in the 2000s – 2010s subdivisions, though older ranch-style homes near downtown Manor often land on the higher end once we open walls and find what’s actually behind them. We’re Fielding ADU Austin, part of the Garrison Partners family, and we’ve been building to The Garrison Standard since 2006. If you’re weighing a garage conversion in Manor, call (361) 309-9568 and we’ll give you a written price before any work starts.
Why Fielding ADU Austin Is Manor’s Preferred Garage Conversion Contractor Company

Manor homeowners ask us for one thing more than anything else: a number that doesn’t move. That’s how we work. The Garrison Code is simple: show up in the window, price in writing, build by the book, leave it clean, stand behind it for a year. Every project gets a written price before a single nail is driven, and the number you approve is the number on the final invoice. No change orders because we underbid. No surprises at the door.
Reed Calloway leads our crew. He’s the person who walks your lot in Manor, looks at your slab, your panel, your setback lines, and tells you what’s actually possible. Not what sounds good on a sales call. Our crew members are background-checked and arrive in uniform, so you know exactly who’s on your property. And when you call us at (361) 309-9568, a live person answers. No voicemail. No callback queue. That matters at 2 p.m. when you’re comparing bids, and it matters at 2 a.m. if something fails inside your warranty year.
The 365-Day Done Right Promise covers every garage conversion we build in Manor. If the work fails within one full year, we come back and make it right at no charge. It’s written down, it’s specific, and most contractors won’t put that on paper.
Garage Conversion Permit in Manor
A Garage Conversion Permit in Manor is the city and county documentation that turns your garage from vehicle storage into conditioned living space, and on many Manor properties it’s the part of the job that takes the longest. For an attached garage conversion inside city limits, you’re usually looking at a residential remodel permit through the City of Manor. For properties in the ETJ, Travis County steps in, and if you’re adding a bathroom or kitchen, the OSSF (on-site sewage facility) review can add weeks. A typical permit package in Manor runs $1,800 – $4,200 depending on scope, with septic-related OSSF permitting adding $600 – $1,500 on top when it applies.
What the Permit Covers
The permit path covers structural changes to the garage, electrical upgrades, plumbing if you’re adding a bath or wet bar, and insulation and HVAC brought up to current code. On slab-on-grade homes, we verify the slab elevation relative to floodplain maps and confirm the garage floor meets living-space height requirements. A converted garage that isn’t permitted becomes a problem when you sell, and Manor’s rapid growth means inspectors and title companies are checking more closely than they did a decade ago.
Septic and OSSF Requirements
Here’s the Manor-specific hurdle that catches people off guard. A large share of Manor’s ETJ homes are on septic, not city sewer. Add a bathroom or kitchen to a garage conversion and Travis County may require a new OSSF permit, soil testing, and possibly a system upgrade. We’ve seen framing completed, then a failed OSSF inspection that stalls the job for weeks. We check this at the start, before you spend money on plans that won’t pass.
Garage Conversion to Living Space in Manor

Garage Conversion to Living Space in Manor means taking the existing footprint you already own and turning it into heated, cooled, code-compliant square footage: a bedroom, a media room, an in-law suite, a home office, or a rentable studio. It’s the fastest way to add space without pouring a new foundation or fighting setback lines on a tight lot. In Manor, a straightforward conversion of an attached two-car garage into a 400 – 500 sq ft living space with a half bath typically runs $32,000 – $48,000, including electrical, insulation, drywall, flooring, and a ductless mini-split for climate control.
Septic Lots and Soil Conditions
Manor sits on Blackland Prairie clay. That soil expands when it rains and contracts through hot, dry summers, which is why foundations here need real attention before you load more weight on an existing slab. If your garage slab wasn’t engineered to support living-space loads, we bring in a structural engineer before we touch a wall. For detached conversions on septic lots, the OSSF question comes up again: any new plumbing fixture can trigger a county review, and the answer changes lot by lot. This is the kind of thing our Garage Conversion Contractor team handles before it becomes a surprise.
Attached vs. Detached on Manor Lots
Most Manor subdivisions built in the 2000s and 2010s have attached garages on slabs, which makes attached conversions simpler: the roof is already there, the power is already run, and you’re mostly reworking the interior. Detached garage conversions cost more because utilities have to be trenched across the yard, and in neighborhoods like Presidential Meadows and ShadowGlen, recorded plat restrictions sometimes prohibit detached ADUs entirely. We’ve walked lots where the detached plan was dead on arrival and the attached conversion sailed through. Knowing which is which before you pay for drawings is worth the phone call.
Trusted Brands We Service in Manor
Manor homeowners are researching Abodu, Cover, and Dvele before they ever call a contractor, and we know those platforms well. We also build conventional conversions using James Hardie siding and Tuff Shed-style structures when the budget calls for it. What that means for you: we can match the build method to your lot and your money, not force one system on every job. For Manor customers, we keep common materials and components moving through our Austin coordination office, which means less downtime waiting on parts when your conversion is mid-frame. If you’re comparing a prefab ADU against a conventional garage conversion, we’ll lay out the real cost difference in writing, not in a brochure.
Common Garage Conversion Contractor Problems We See in Manor Homes
- HOA plat restrictions ignored. In Presidential Meadows and ShadowGlen, recorded plat restrictions sometimes ban detached ADUs or require a formal variance before foundation work. We’ve seen homeowners frame a detached structure, then get a cease-and-desist from their HOA. We check the plat before you spend a dollar on materials.
- Septic capacity underestimated. A garage conversion with a bathroom on a septic lot can fail Travis County OSSF inspection after framing is complete if the system wasn’t sized for the added load. We pull the septic file and run the soil test at the start, not after the walls are up.
- Noise ordinance violations. Manor’s work-hour ordinances restrict early-morning concrete cutting and heavy equipment. Start cutting at 6 a.m. and neighbors will call the city. We schedule loud work inside allowed hours and keep the site tight, which keeps the job moving and the neighbors quiet.
- Slab movement from Blackland Prairie clay. Garage slabs in Manor weren’t always poured to living-space standards. Adding weight, plumbing, and interior framing to an under-engineered slab leads to cracks and separation within a few dry summers. We bring in a structural engineer when the slab looks questionable, which on older ranch homes near downtown Manor is more often than not.
Pricing for Garage Conversion Contractor in Manor, TX
Here are real numbers for Manor’s market. A basic attached garage conversion without a bathroom runs $22,000 – $38,000. Add a half bath and you’re at $32,000 – $48,000. A full detached garage ADU with kitchen, bath, and separate utility service runs $52,000 – $85,000 depending on size, finishes, and whether you’re on city sewer or septic. Permit fees add $1,800 – $4,200, and septic OSSF work adds $600 – $1,500 when it applies. What moves the price: slab condition, panel capacity, trenching distance for utilities, and whether the HOA requires a variance process. We put the price in writing before work starts and the number doesn’t change. Call (361) 309-9568 for a free estimate about serving Manor.
We Also Serve Cities Near Manor
Our crews serve Manor and the surrounding area, including Pflugerville, Hutto, Austin, and Georgetown. If you’re just outside Manor city limits or in the ETJ, the same written-price guarantee and one-year workmanship warranty apply. We coordinate scheduling from our Austin office, and the crews working your Manor job live in the metro, not out of state.
Serving Manor, TX - Our Local Coverage Area
We’re based in the Manor 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 Manor
Yes, in most cases. Presidential Meadows and ShadowGlen have recorded plat restrictions that can ban detached ADUs outright or require a formal variance before any work starts. An attached garage conversion is usually regulated differently, but you still need to check the covenants. We pull the plat and read the restrictions before we quote the job, so you’re not paying for plans the HOA will kill. Call (361) 309-9568 and we’ll check your lot.
Any new plumbing fixture on a septic lot can trigger a Travis County OSSF review, including soil testing and possibly a system upgrade. We start with the existing septic file and the county requirements for your lot size and soil type, then price the OSSF work into your written estimate. Skipping this step is how homeowners end up with framed walls and a failed inspection. Call (361) 309-9568 for an exact quote on your lot.
Manor restricts noisy construction work like concrete cutting and heavy equipment operation to certain hours, and we schedule loud stages inside those windows. Early-morning cutting before the allowed time is the fastest way to get a stop-work order from a neighbor complaint. We plan the noisy work for mid-morning and keep quieter interior work for early and late in the day, which keeps your project moving without the city knocking.
Often yes. Manor’s Blackland Prairie clay expands and contracts through hot, dry summers and heavy rains, and many garage slabs were poured without living-space load standards in mind. If the slab is cracked, undersized, or sitting on questionable fill, we bring in a structural engineer to assess it before framing starts. The cost of that engineer is cheap compared to repairing a slab that moves after you’ve finished the room. Call (361) 309-9568 for a site walk and a straight answer.
Older ranch homes near downtown Manor go through the City of Manor residential remodel permit process, plus a structural review if the garage was built before current code. You’ll likely need electrical upgrades, possible panel work, and insulation brought up to code, and the permit cost usually runs $1,800 – $4,000. These older garages also tend to have surprises behind the drywall, which is why we walk the space and look before we write the price. Call (361) 309-9568 and we’ll give you a written estimate.
Written by Reed Calloway, Owner at Fielding ADU Austin, serving Manor since the Garrison Partners family began building to The Garrison Standard in 2006.




