Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Additions & ADU Across Azle
Adding square footage to your Azle home typically runs $45,000 to $130,000 depending on scope, foundation work, and whether you’re building a detached ADU or converting existing space. Most homeowners start with a free written estimate, not a vague phone quote. Barrett & Sons Construction has been building across Azle since 1998, and we know the Tarrant-and-Parker county split better than most because we’ve pulled permits on both sides of the line. Call (877) 610-1318 when you’re ready to talk numbers that show up on paper before any work starts.
Why Barrett & Sons Construction Is Azle’s Preferred Home Additions & ADU Company
Tom Barrett puts his name, address, and license number on every contract we write in Azle. Not a brand, not a logo. A person you can look up. When you call us about a room addition off Boyd Road or a garage conversion near Eagle Mountain Lake, you’re talking to someone who’s been on Azle job sites, walked your kind of lots, and dealt with the inspectors who cover 76020 and 76098.
Homeowners around Azle keep our number because we do something most contractors won’t: every price change arrives as a written change order before a single board moves. The allowance that isn’t on paper is a surprise waiting for a date, and our customers don’t get surprises. Every eligible job gets permits pulled and inspections signed, because the last contractor a lot of Azle homeowners used told them permits were optional. They aren’t.
Our Home Additions & ADU team works owner-operated, with Tom’s sons running crews on-site most days. No dispatcher sending strangers. You’ll see the same faces from first estimate to final walkthrough.
Key Takeaways for Azle Homeowners
- Home additions in Azle run $45,000-$130,000; detached ADUs run $90,000-$220,000; garage conversions run $30,000-$80,000.
- Azle straddles two counties. A project on one street pulls Tarrant County permits; a quarter-mile away, you’re in Parker County. We handle both.
- Older Azle ranch homes from the 1970s-1990s often need foundation and utility upgrades before an addition touches the ground.
- Every job comes with the written 90-Day Done Right Promise. If it’s not done right, Tom comes back.
Our Home Additions & ADU Services in Azle
ADU Design & Permitting
Before you build an ADU off Jacksboro Highway or out near Briar, someone has to figure out which county governs your lot. That’s our first step. We design to Azle’s specific conditions: lot-specific soil movement from the Western Cross Timbers geology, septic and well constraints on older acreage properties, and the newer subdivision codes that came in as Fort Worth sprawl pushed west. Permits pulled, inspections signed, paperwork in your file before we break ground.

Garage Conversion ADU
Converting an existing garage into a rentable unit or an in-law suite in Azle runs $30,000 to $80,000. Your 1980s ranch garage off Farm Road 730 wasn’t built to today’s energy code, and that matters in a place where summer heat tops 100°F. We spec insulation, electrical, plumbing, and Windows & Doors - Azle upgrades as part of the scope, in writing, before any demo starts. A garage conversion often costs less per square foot than new construction, but only if the foundation checks out.

New Detached ADU
Building a standalone ADU on an Azle lot runs $90,000 to $220,000. On acreage with private wells and septic, that number climbs when utilities need extending. On newer tract lots near Saginaw, the work is more predictable. We don’t give you a range and hope. We walk your lot, test the soil where the slab will sit, check the county’s setback requirements for your specific address, and price it in writing.

Junior ADU & Interior Conversion
A junior ADU converts existing interior space, a bonus room, a den, or part of a large ranch plan, into a semi-independent living area. In Azle’s older housing stock, these conversions frequently reveal what the original 1970s builders left out: undersized electrical panels, no dedicated circuits, and walls that don’t meet current fire-separation rules. We fix those as part of the scope and show you the line items. You’ll also want to see how we handle Kitchen Remodeling in Azle if the ADU needs its own cook space, and Bathroom Remodeling in Azle when you’re adding a private bath.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Azle
We don’t stock mystery materials off a van. For Azle additions and ADUs, we work with names you can verify: Schluter for waterproofing and tile systems, Sterling for durable bath fixtures, and GAF for our Roofing in Azle on any new structure we build. When a GAF roof goes on a new ADU off Highway 199, you get a system with published specs, not whatever was on sale that week. If something under warranty fails on any brand we install, we handle the claim and the replacement, and the 90-Day Done Right Promise still applies to our workmanship.
Common Home Additions & ADU Problems We See in Azle Homes
- Foundation movement from clay and caliche mix: Unlike inner Fort Worth’s flat Blackland Prairie, Azle lots can shift from sandy loam to exposed limestone caliche within the same block. Seasonal movement stresses slabs, and an addition built without soil testing can separate at the seam within a few years.
- The two-county permitting split: A contractor permitted through Tarrant County for a job east of Azle may pull the exact same scope on a lot a quarter-mile west and find themselves filing with Parker County. Different forms, different inspectors, different turnaround times. Out-of-area builders get this wrong. We don’t.
- Older rural stock needing code retrofits: Many 1970s-1990s Azle ranch homes on acreage were originally built to minimal or no municipal code, with septic and private wells. When you add on, the county makes you bring things current. That’s a scope item we identify and price up front, never as a surprise mid-project.
- Post-Uri damage hidden behind walls: The February 2021 freeze burst pipes across Azle’s older, less-insulated homes. When we open walls for an addition or conversion, we sometimes find water damage that was never fully remediated. We show you photos, we price the fix, and we put it in writing before proceeding.
Pricing for Home Additions & ADU in Azle, TX
A home addition in Azle runs $45,000 to $130,000. A detached ADU runs $90,000 to $220,000. Garage conversions land between $30,000 and $80,000. What moves those numbers: foundation remediation on older ranch lots, extending septic and well lines on acreage, which county’s inspectors you’re working with, and whether your existing panel can carry the new load. We price every job as a written scope with allowances spelled out. The price on the contract is the price you pay unless a change order, signed by you, modifies it. Call (877) 610-1318 for a free estimate. No trip charge inside the county, and if you have another contractor’s written estimate, bring it in for a free second opinion.
What affects Home Additions & ADU cost in Azle?
| Project Type | Typical Azle Range |
|---|---|
| Room Addition | $45,000-$130,000 |
| Detached ADU | $90,000-$220,000 |
| Garage Conversion ADU | $30,000-$80,000 |
| Junior ADU (Interior) | Quoted per scope after walkthrough |
Senior and veteran customers receive a permanent 10% discount, and any repair over $200 takes $40 off. Call for your exact number.
We Also Serve Cities Near Azle
While this page focuses on Home Additions & ADU in Azle, our crews regularly work in Eagle Mountain, Briar, River Oaks, and Saginaw. The jurisdictions change; the workmanship doesn’t. If you’re a few minutes outside Azle, call us. We’ll tell you honestly whether we can get to you quickly.
Serving Azle, TX - Our Local Coverage Area
We’re based in the Azle 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 - Home Additions & ADU in Azle
Crews serve Azle daily from our Dallas-Fort Worth office, so we’re typically on-site for estimates within a few business days, depending on current scheduling. We’re not commuting from two counties away for every visit. Call (877) 610-1318 and a live person answers, 24/7. Not a voicemail box, not an out-of-state call center.
We cover 76020 and 76098 and the surrounding pockets off Highway 199, Jacksboro Highway, Farm Road 730, and the Eagle Mountain Lake shoreline areas. If you’re on acreage with a private well and septic, we’ve built there. If you’re in a newer subdivision west of town, we’ve built there too.
It depends on your exact street. Azle straddles Tarrant and Parker counties, and your permitting jurisdiction follows the county line, not the city limit. We determine which one governs your address before we price the job, and we pull the permits with the correct county every time. The inspector works for you, not for us. That’s why we like him.
Azle pricing runs close to Fort Worth’s western suburbs, but the county split and older-rural stock add variables you won’t face in a flat new-build subdivision in Saginaw. Foundation work and utility retrofits are more common here. A room addition in Azle runs $45,000 to $130,000, similar to the metro norm, but the soil test and septic evaluation on acreage land are line items you’ll want in your written scope, which we provide.
Every completed job carries the written 90-Day Done Right Promise. If something’s not done right, one call brings Tom back to make it right, at no charge. Beyond that, we honor the manufacturer warranties on every brand we install, including GAF and Schluter, and we handle the claim paperwork for you. Call (877) 610-1318 to schedule your free estimate, and we’ll put every promise in writing.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Azle since 1998.







Before
After
Before
After
Before
After