Home Additions & ADU in Taylor - One Fixed Price, Permits Handled

Fast, Reliable Home Additions & ADU Across Taylor

Expanding a home in Taylor means navigating a construction market that has fundamentally changed since Samsung broke ground. What used to be a straightforward room addition now competes for concrete crews, framers, and electricians against one of the largest job sites in Texas. We get it. Barrett & Sons Construction has been pulling permits and building additions in Williamson County for over 29 years, and we answer the phone when you call. If you’re trying to figure out whether an ADU makes sense on your lot, or whether your pier-and-beam foundation can carry a second story, call (877) 610-1318 and Tom will talk you through it.

Call (877) 610-1318

Here’s the short version for anyone pricing a project right now: a home addition in Taylor typically runs $45,000 to $130,000, while a detached ADU lands between $90,000 and $220,000 depending on square footage and site work. Those are real numbers for this market, not national averages. The Blackland Prairie soil beneath your foundation doesn’t care what the internet says a room addition costs in Ohio.

• Key takeaways for Taylor homeowners:
• Lead times on concrete and framing crews now run three to six months, not weeks. Plan accordingly.
• Soil prep and drainage grading are non-negotiable on any addition in Taylor’s clay.
• Every price change arrives as a written change order. No surprises at the end.
• Free estimates. Call (877) 610-1318.

Why Barrett & Sons Construction Is Taylor’s Preferred Home Additions & ADU Company

Tom Barrett started this company in 1998, and his sons run the crews. When you hire Barrett & Sons for an ADU or addition in Taylor, the name on the truck is the name on the paperwork and the name answering your calls. No franchise dispatch, no out-of-state call center, no stranger walking your property with a clipboard and a sales script. That matters in a town where word travels fast.

Taylor homeowners tell us the same thing again and again: they got burned by a national company that quoted one price on the phone and handed them a different bill at the door. We do the opposite. Every scope item, every allowance, every material selection goes on paper before work starts. If the scope changes, you get a written change order first. Not after. Before.

You can also verify us instead of trusting us. Tom publishes his name, his address, and his license number. Look it up before you sign anything. We pull permits on every eligible job and the inspector signs off before we call it done. The inspector works for you, not for me, which is exactly why I like him.

Our crews work in Taylor regularly. Scheduling runs through our Austin office, but the people swinging hammers in your home live and work in this area, not three states away. Background-checked, uniformed, and carrying the Barrett & Sons name on their shirts.

Our Home Additions & ADU Services in Taylor

We’re the Home Additions & ADU team that handles everything from a simple bedroom bump-out to a fully permitted detached unit with its own utilities. Here’s what we do most often in Taylor:

ADU Design & Permitting

Building an ADU in Taylor means working with the city’s planning department, meeting setback requirements on your specific lot, and getting the engineering right for Blackland Prairie soils. A junior ADU on a pier-and-beam house in the older neighborhoods near the historic downtown requires different load calculations than a detached unit on a new subdivision lot off FM 973. We handle the design, the drawings, the permit submittal, and the inspections. You handle deciding whether it’s for a relative, a tenant, or a teenager who won’t leave.

Garage Conversion ADU

If your attached or detached garage in Taylor is storing lawn equipment and a broken treadmill, converting it into a living unit usually costs $30,000 to $80,000. Older Taylor garages often need significant work before conversion: new slab insulation, upgraded electrical service, and in some cases, perimeter drainage improvements because the original slab wasn’t engineered for finished living space. We’ve done enough of these to know what the inspector will flag before we even start.

New Detached ADU

New detached ADUs in Taylor run $90,000 to $220,000. That range reflects square footage, site prep, utility runs, and finish level. On the clay-heavy lots common across 76574, we’re looking at post-tension slab engineering or pier drilling if the unit sits near mature trees. Proper drainage grading isn’t an upgrade here. It’s the difference between a unit that stays dry for decades and one that shifts after the first heavy spring rain.

Junior ADU & Interior Conversion

A junior ADU converts existing interior square footage into an independent living space, typically under 500 square feet. In Taylor’s older wood-frame homes, this often means reworking a back bedroom, adding a kitchenette, and creating a separate entrance. These projects are more affordable, but they’re not simple. Load-bearing walls, egress windows, and smoke separation all come into play. We also handle Kitchen Remodeling in Taylor when a junior ADU needs a compact kitchen designed, and Bathroom Remodeling in Taylor for the attached bath. Sometimes a homeowner realizes mid-project that converting a bedroom is smarter than adding a whole new wing, and we can pivot that scope with a written change order.

Room Additions

Adding a bedroom, a den, or an office to an existing Taylor home starts around $45,000 and can reach $130,000 depending on foundation work, roofline integration, and interior finish. On pier-and-beam homes near Main Street and the older grid streets, we often see floor framing that needs reinforcement before we can tie in new square footage. That’s a cost and a schedule item we flag in the estimate, not after demo starts.

Second Story Additions

Going up instead of out is common in Taylor neighborhoods where lots are deep but narrow, especially in the older sections of town where homes sit close to property lines. A second story addition requires structural engineering on the existing first-floor walls and foundation. On expansive clay, we may need to add piers or strengthen the existing slab before any framing goes up. This is not a project to rush, and we don’t.

Sunrooms & Enclosed Patios

Enclosing an existing patio or adding a sunroom gives you usable square footage without the full cost of a traditional addition. In Taylor, sunrooms need careful attention to heat gain; summers here are real, and a poorly glazed sunroom becomes unusable by June. We spec low-E glass and proper ventilation so the room actually gets used eleven months a year, not two.

Common Home Additions & ADU Problems We See in Taylor Homes

• Foundation movement on Blackland Prairie clay. Taylor’s soils swell after rain and crack during drought, which means a room addition that’s not properly engineered will separate from the original structure within a few seasons. We see this constantly on additions built in the 1980s and 1990s before post-tension slabs became standard practice here.
• Samsung-era scheduling gaps. Since the fab plant ramped up, concrete and framing subcontractors that used to book two to four weeks out now require three to six months of lead time. Homeowners who wait until they’re “ready to start” often discover they’re actually four months from breaking ground.
• Pier-and-beam floor rot in older homes. Many pre-1960 Taylor homes sit on pier-and-beam foundations with original wood sills and floor joists. Before we tie new square footage into the existing floor system, we check for moisture damage, termite history, and settling. Finding rot after framing starts is expensive; finding it before is just a line item.
• Setback and utility access surprises. Taylor’s older lots were platted long before current ADU regulations existed. Some properties can’t fit a detached unit where the homeowner assumed it would go, and running new sewer or electrical service across a deep lot adds thousands to the budget. We verify all of this before you commit, not after.

Pricing for Home Additions & ADU in Taylor, TX

We Also Serve Cities Near Taylor

Beyond Taylor, our crews cover Home Additions & ADU in Taylor projects that push into the surrounding area, including Hutto, Round Rock, Pflugerville, and Elgin. If you’re on the edge of 76574 or just across the county line, call us; the same site-prep standards and written change-order process apply no matter which side of the road your house sits on.

Trusted Brands We Service in Taylor

We install materials you can look up, which means something in an era of mystery products off a van. For hardscape and site work on Taylor ADU projects, we regularly use Techo-Bloc and Cambridge Pavers for patios, walkways, and retaining walls, and Quikrete and Oldcastle for concrete and masonry products. These are brands your neighbor can verify, with published specs and real warranties. Not everything needs to be premium, but nothing on your job should be a name you’ve never heard of.

FAQs - Home Additions & ADU in Taylor

Get Your Free Estimate for Your Taylor Home Addition or ADU

Whether you’re adding a bedroom for a growing family, converting a garage for an aging parent, or building a detached ADU to rent out, the first step is the same: a real conversation about your property, your budget, and your timeline. No pressure, no hard sell. Tom Barrett will look at your lot, your foundation, and your goals, and give you a written line-item estimate you can actually plan around. Call (877) 610-1318 today. We live twenty minutes away; if something’s wrong, we want to know about it.

Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Taylor and surrounding Williamson County communities. Founded 1998. Owner-operated from day one.