







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 Far North Dallas
Converting a garage into livable square footage in Far North Dallas typically runs $85,000 to $165,000 for a full build-out with permits, plumbing, electrical, and finish work. Attached conversions on 1970s brick homes usually land near the lower end; detached garage conversions to full ADUs with kitchens and baths push toward the upper end. The biggest cost swings here come from two things most contractors don’t mention until the slab is open: diagonal sewer lines crossing the backyard and clay soil that shifts seasonally. We’re Fielding ADU Dallas, and we handle both before we ever hand you a written price. Call (903) 342-8977 to schedule a free site walk in Far North Dallas and get real numbers for your lot and your garage.
Why Fielding ADU Dallas Is Far North Dallas’s Preferred Garage Conversion Contractor Company

Far North Dallas homes built between the 1970s and 1990s share a construction DNA that a contractor from outside the area won’t know until it’s too late. Brick veneer over wood frame. Slab-on-grade foundations over expansive clay. Sanitary lines that run at angles a modern plumber would never guess. We see these conditions every week. Reed Calloway, who leads our Dallas operation, has walked hundreds of Far North Dallas lots and can tell you whether your garage conversion will hit a sewer easement, a setback issue, or a panel that needs upgrading before we quote the job. That’s why the written price we hand you covers what is actually under your slab, not what we hope is under it.
The Garrison Standard is the operating rule here. That means the price goes in writing before any work starts, the permit gets pulled by the book, the crew on your property is background-checked and uniformed, and the finished conversion carries a written 365-day guarantee. If something fails in that first year, we come back and correct it at no charge. No exceptions. Far North Dallas homeowners who have been through a contractor who moved the price at the door understand why that matters. Call (903) 342-8977 and you will reach a live person, not a voicemail queue, whether it is noon or midnight.
Garage Conversion Permit in Far North Dallas
A Garage Conversion Permit in Far North Dallas is the city-issued approval that lets you legally change a garage from vehicle storage to conditioned living space. Most conversions here require a building permit, a plumbing and electrical permit, and often a zoning review. The cost for permit fees alone typically runs $3,500 to $8,000 depending on the scope and whether the city requires plan review by a structural engineer. The larger risk is not the fee. It is discovering mid-project that your lot falls under a county jurisdiction for part of the scope, or that the HOA has deed restrictions that govern what you can and cannot build.
City Versus County Scoping
Parts of Far North Dallas sit under city of Dallas permitting. Other pockets fall under Dallas County review for certain trades. We sort this out before you spend a dollar, because filing plans in the wrong place voids them and sends you back to day one. The Garrison Code applies here: show up in the window, price in writing, by the book, leave it clean, stand behind it for a year.
HOA and Deed Restriction Review
Far North Dallas has some of the densest HOA coverage in the metroplex. Many subdivisions prohibit ADUs outright or restrict what a converted garage can be used for. Before we quote, we pull your deed restrictions and check with your HOA’s architectural review committee. If you need a written variance application, we prepare it for you. This step costs nothing up front and can save you from a stop-work order later.
Garage Conversion to Living Space in Far North Dallas

Garage Conversion to Living Space in Far North Dallas means turning the slab, the stud walls, and the roof you already own into a bedroom, home office, studio, or full apartment. It costs less per square foot than building new because the shell exists. A standard conversion of an attached two-car garage to a living room and bath runs $85,000 to $120,000. A detached two-car garage converted to a full ADU with a kitchen runs $130,000 to $165,000. Those ranges include permits, plumbing, electrical, insulation, drywall, flooring, and finishes. They do not include hidden conditions under the slab, which is why we always walk the lot before quoting.
Foundation and Soil Work
Far North Dallas sits on clay-heavy soils that expand when wet and contract in the long hot dry summers. Any garage conversion that adds living space over an existing slab needs a soil review. In many cases we add piers or deepen the footing before we frame. Skipping this step is how you get a conversion that cracks its drywall within two seasonal cycles. We do not skip it, and the price we put in writing includes whatever the soil requires.
Sewer Line and Drainage Scope
West of the Dallas North Tollway, original sewer lines often cross backyards at a diagonal. If the line runs under the garage slab, the city of Dallas requires sleeving or relocating it before you pour new concrete. This is a hidden cost that catches many ADU builders off guard and triggers stop-work orders with expensive redesign. We check the line location during our site walk and include any sleeve or relocation work in your fixed price from day one. For more on what a full conversion involves, see our Garage Conversion Contractor service page.
Trusted Brands We Service in Far North Dallas
We stay fluent in the build methods Far North Dallas homeowners are already researching. For garage conversions and ADUs, we work with Boxabl and Plant Prefab for modular builds, Tuff Shed-style structures for simpler workshop-to-living conversions, and James Hardie siding when the conversion needs exterior cladding that matches the house. We also build conventional stick-frame conversions when that is the best fit for the lot. The point is you get a match to your budget and your garage, not a one-size-fits-all bid. We keep local supplier relationships across DFW, which means shorter material hauls and faster turnaround for Far North Dallas crews.
Common Garage Conversion Contractor Problems We See in Far North Dallas Homes
- Diagonal sewer easements under the slab. West of the Dallas North Tollway in particular, the original cast iron lines cut across backyards. If your garage sits over one, you cannot pour until it is sleeved or relocated. We check this before quoting, not after excavation.
- County versus city permit confusion. Assuming every permit comes from the city of Dallas is a fast way to get plans voided. Parts of Far North Dallas route certain reviews through the county. We map the jurisdiction first.
- Clay soil under old slabs. Many 1970s garage slabs were poured with no soil report and no piers. Adding a bedroom or bath on top of that without upgrading the footing leads to cracks in the first two seasons. We run a soil review and deepen the foundation where the lot demands it.
- HOA restrictions on ADUs and garage conversions. Far North Dallas subdivisions often have deed restrictions that prohibit a detached garage from becoming a rental unit or a second kitchen. We pull the restrictions and handle the variance paperwork before any design work starts.
Pricing for Garage Conversion Contractor in Far North Dallas, TX
A basic attached garage conversion to a bedroom and bath in Far North Dallas runs $85,000 to $120,000. A detached garage converted to an ADU with a full kitchen, bath, and separate entrance runs $130,000 to $165,000. Permit fees in the city of Dallas add roughly $3,500 to $8,000 depending on scope. Sewer line sleeving or relocation, when the original line crosses your slab, adds $4,000 to $12,000. Foundation piers for expansive clay add $3,000 to $9,000 depending on depth and count. We put every one of these lines in writing before any work starts, and the number you approve on day one is the number on the final invoice. Call (903) 342-8977 for a free site walk and a written line-item quote.
We Also Serve Cities Near Far North Dallas
While this page focuses on Far North Dallas, our crews also work in Dallas, Irving, Mesquite, and Grapevine. If your property sits near the Far North Dallas city line, we can tell you on the first call whether your permitting runs through the city of Dallas or Dallas County. Read more about our service area and local approach on the Garage Conversion Contractor in Far North Dallas page, or call (903) 342-8977 and ask directly.
Serving Far North Dallas, TX - Our Local Coverage Area
We’re based in the Far North Dallas 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 Far North Dallas
If your Far North Dallas lot has a septic system and a well, the answer is often yes. Converting a detached garage into living space changes the occupancy classification, which triggers a review of the septic field setback from the new living area. The same applies to the well head. We map both setbacks during the site walk and file the variance with the county or city office that has jurisdiction for your specific parcel. Call (903) 342-8977 and we will tell you on the first visit what applies to your lot.
Far North Dallas HOAs often prohibit or severely limit ADUs in their deed restrictions. Some allow a garage conversion that stays attached to the main house but ban a detached garage from having its own kitchen or separate utility meter. Before we quote any work, we pull your deed restrictions and contact your HOA’s architectural review board. If a variance is possible, we write the application for you and include it in the plan review. This step is free and happens before you commit to anything.
If the original sewer line crosses your backyard at a diagonal, and the garage slab sits over part of that run, the city of Dallas will require you to sleeve or relocate the line before new concrete goes down. Sleeving typically runs $4,000 to $8,000. Relocation runs $8,000 to $12,000. Off Spring Valley Road, our crew converted a detached two-car garage on a .4-acre lot where the original clay sewer line cut diagonally under the slab. Before pouring a new level foundation, we sleeved 28 feet of cast iron, relocated a septic cleanout past the new ADU’s setback, and ran an upgraded 200-amp service from the house, taking it from quote to permit in 19 days. The $7,200 sewer line item was in the written price from day one, not a change order.
In most cases yes, but it depends on the slab, the setbacks, and the HOA. A Tuff Shed-style structure on a gravel pad is not a legal ADU and cannot simply be finished out with drywall and plumbing without a new foundation and a building permit. We evaluate the existing slab, the distance to the property line, and the sewer access before we quote. If the HOA allows it and the slap can take the load, we handle the conversion from permit to final inspection.
Yes. The clay-heavy soils in Far North Dallas expand and contract through the seasons, and a 1970s garage slab was not poured to hold a livable structure. A living-space conversion adds weight and requires deeper piers or dropped footings in most cases. We run a soil report before design and include the foundation upgrade in your fixed price. Skipping it is not a cost savings. It is a cracked slab waiting to happen. Call (903) 342-8977 to schedule a free site walk and get exact numbers for your garage.
Written by Reed Calloway, Owner at Fielding ADU Dallas, serving Far North Dallas and the surrounding DFW metro.




