







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 Bastrop
A garage conversion in Bastrop typically runs $85,000 to $165,000 for a full living-space build-out, with detached conversions landing $15,000 to $30,000 higher than attached ones due to foundation and utility work. Most Bastrop jobs take 10 to 16 weeks from permit to final inspection. If you’re weighing a garage ADU, a bedroom addition, or a full apartment conversion on your lot, call (254) 615-3842 and we’ll walk through what makes sense for your property.
We know Bastrop’s lots don’t behave like Austin’s or Elgin’s. The sandy post-wildfire soil pockets, the septic constraints on county parcels, and the heritage tree rules in older neighborhoods all change how a conversion gets engineered and priced. Our crews stage on the driveway, keep the neighbor’s fence line untouched, and leave the work area clean every single day. That’s the standard, not the upgrade.
Why Seedling ADU Austin Is Bastrop’s Preferred Garage Conversion Contractor Company

Bastrop homeowners call us because we show up with a written price before any work starts, and that price doesn’t shift once the crew arrives. Ben Ortega leads our team, and he holds every project in Bastrop to the Cedarwell Care Promise: shoe covers and drop cloths inside the home, pet-safe products where there’s a choice, and a photo of the clean-up before the crew leaves. Families with kids and dogs know who’s walking through the door, because our technicians are background-checked and uniformed on every visit.
We’ve converted garages off Chestnut Street in the historic district, out along the 71 corridor in newer subdivisions, and on county lots where the home runs on a septic system. Each of those jobs has a different permit path and a different foundation need. We plan for that from day one. Our Garage Conversion Contractor team handles the engineering, the permits, and the build, so you’re not coordinating five different people from your kitchen table.
Response time to Bastrop is straightforward. Scheduling and dispatch run through our Austin office, but the crews working on your garage live in the Bastrop area and know the county’s permitting rhythm. When you call (254) 615-3842, a live person answers, not a voicemail tree. During an active build, you’ll have that same direct line, 24/7.
Garage Conversion Permit in Bastrop
A Garage Conversion Permit in Bastrop is the approval you need before converting an existing garage into habitable space, and the path depends on whether your lot is in city limits or unincorporated Bastrop County. City lots go through the Bastrop Building Department, while county parcels route through Bastrop County permitting. The permit cost for a garage conversion typically lands between $2,200 and $6,800, depending on scope, plan review complexity, and whether you’re inside a historic overlay district.
Septic and bedroom-count review
Bastrop County lots on septic often hit a wall at permit stage when the conversion adds a bedroom. The county reviews the existing system’s capacity before approving the change of use. If your tank and drain field can’t handle another bedroom, you’ll need a system upgrade or a reduced bedroom count in the plans. We flag this in the first conversation, not after you’ve paid for drawings.
Historic overlay and Certificate of Appropriateness
Downtown Bastrop garage conversions may require a Certificate of Appropriateness before the building permit is issued. Window style, siding material, and even exterior paint can come under review. A conversion that skips this step can trigger a stop-work order and a redo on non-compliant trim, which costs money and stalls the schedule.
Garage Conversion to Living Space in Bastrop

A Garage Conversion to Living Space in Bastrop means turning an existing enclosed garage into a heated, cooled, permitted room, and the price typically runs $85 to $145 per square foot depending on foundation, electrical, and plumbing conditions. Older ranch homes from the 1960s and 1970s usually need a full electrical panel upgrade, while newer tract homes often do not. Plan on $40,000 to $70,000 for a single-car garage and $75,000 to $140,000 for a two-car conversion.
Foundation and soil work
Bastrop’s post-wildfire sandy soil patches create uneven slab settlement, and that shows up fast in garage slabs that were never designed for finished living space. We often find hairline cracks that run wide under load, and we correct them with helical piers or engineered fill before framing starts. Skipping that step means cracked tile and sticking doors within two years.
Access and staging realities
On tight lots, the driveway dictates the quote. A shared driveway in an older ranch neighborhood means hand-carrying materials instead of rolling a skid-steer through, and that adds labor hours. We map the access path before we price the job, so the number we hand you is the number you pay.
Trusted Brands We Service in Bastrop
We build with materials and systems that hold up to Bastrop’s summer heat and periodic drought. For garage conversions, we regularly work with James Hardie siding and trim, which resists warping and keeps a clean exterior line on converted garages that face the street. For homeowners considering a prefab or panelized option instead of a pure stick-build, we offer Abodu and Cover as hands-on brand options. Because we’re not pushing one brand, you get a straight answer about what fits your lot and your budget, with local parts sourcing that keeps lead times short for Bastrop customers.
Common Garage Conversion Contractor Problems We See in Bastrop Homes
- Sandy soil settlement under existing slabs. Bastrop’s post-wildfire soil pockets shift more than Elgin’s clay, and we regularly see garage slabs with uneven settlement that need piering or fill before framing.
- Septic capacity shortfalls. County lots on septic systems often can’t absorb a new bedroom without an upgrade, and that stalls the permit if it’s not caught early.
- Historic district compliance. Downtown Bastrop conversions can need a Certificate of Appropriateness, and non-compliant window or siding choices trigger rework and stop-work orders.
- Narrow shared driveways. Older ranch neighborhoods off streets like Pecan and Water often have tight access that rules out machine staging and changes the labor math significantly.
Pricing for Garage Conversion Contractor in Bastrop, TX
A full garage conversion in Bastrop typically runs $85,000 to $165,000. Attached garage conversions start around $75,000 for a single-car space with minimal plumbing, while a detached garage ADU with a kitchen and bath usually lands between $120,000 and $190,000. The big cost drivers here are foundation correction on sandy soil ($6,000 to $18,000), septic upgrades when adding a bedroom ($12,000 to $35,000), and hand-carry access on tight lots. We give every Bastrop homeowner a written price before we pick up a tool, and that price is backed by our 365-Day Done Right Promise: if it’s not done right, we make it right. Call (254) 615-3842 to schedule your free estimate.
We Also Serve Cities Near Bastrop
Beyond Bastrop, our garage conversion crews work in Elgin, Lockhart, Taylor, and Austin. Each city has its own permit office and its own soil profile, and we price each job to the actual lot conditions, not a template.
Serving Bastrop, TX - Our Local Coverage Area
We’re based in the Bastrop 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 Bastrop
Only if the existing septic system has enough capacity for the added bedroom, which Bastrop County reviews at permit stage. Many older systems don’t, and the conversion gets approved only after an upgrade or a redesigned floor plan with a smaller bedroom count. Call (254) 615-3842 and we’ll check your system’s capacity before you spend money on drawings.
Yes, in most cases. Downtown Bastrop properties inside the historic overlay district require a Certificate of Appropriateness before a building permit is issued, and that covers window style, siding, and exterior changes. We handle that review as part of the permit package, so you’re not guessing about what the board will approve.
Driveway access dictates how materials reach the garage. A wide, straight driveway allows machine staging and keeps labor costs down, while a narrow shared driveway forces hand-carry runs that can add $4,000 to $9,000 to the job. We measure the access path before quoting, so the number reflects the actual conditions on your lot.
Yes, and we’ve done it. On a tight lot off Chestnut Street, we hand-dug the new sewer lateral around a protected heritage pecan and shored the sandy soil with helical piers, keeping the tree and passing final inspection with zero variance requests. Protected trees on Bastrop lots can stay in place with the right digging method and engineered foundation.
Bastrop’s noise ordinance limits construction noise to daytime hours, and our crews respect that by scheduling loud work during permitted windows and using quiet tools near bedrooms during school and nap hours. For historic-district jobs, we also coordinate with the city’s review schedule so work doesn’t run afoul of stop-work rules. We send notice to adjacent neighbors before demolition starts, which keeps the shared fence line peaceful.
Written by Ben Ortega, Owner at Seedling ADU Austin, serving Bastrop, TX with garage conversions, ADUs, and home additions.




