A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across Rowlett
Most home additions in Rowlett fall between $140 and $320 per square foot, depending on whether you’re adding a bathroom, a bedroom, or a full second story. A basic bedroom addition usually lands around $45,000 to $90,000, while a primary suite with a full bath runs $95,000 to $190,000. This page walks through exactly what those numbers buy you in Rowlett, including the lake-adjacent foundation work many contractors don’t mention until inspection fails. If you’re planning a room addition, sunroom, garage addition, or second story on the east shore of Lake Ray Hubbard, call (361) 204-4652 and we’ll give you a written scope and price before any work starts.
We’re the Home Addition Contractor team at Lodgewick ADU Dallas, part of the Kingswell family of home-service companies. We work throughout Rowlett, from Waterview and Springfield Estates down to the neighborhoods off Miller Road and Dalrock. Every project gets a written price first, a defined arrival window, and a written guarantee. That’s The Kingswell Way, and it’s how we’ve built additions across this city without the pricing surprises homeowners tell us about from previous contractors.
Why Lodgewick ADU Dallas Is Rowlett’s Preferred Home Addition Contractor Company
Homeowners in Rowlett call us because we know what a lake-adjacent lot does to a foundation, and we plan for it before the first inspection. Expansive clay soil near Lake Ray Hubbard moves with the seasons, swelling after rain and shrinking in dry heat. A standard slab poured without accounting for that movement will crack, and the drywall above it will follow. On a recent 400-square-foot bedroom and bathroom addition near Lake Ray Hubbard in Waterview, our crew swapped the planned slab for a pier-and-beam foundation with an 18-inch crawlspace. The lot slopes toward the lake and sits inside the FEMA flood fringe. We coordinated the floodplain development permit with Rowlett’s Building Inspection Division, framed with James Hardie siding to match the existing house, and completed the final elevation certificate before the city signed off. That’s the kind of work this city requires, and it’s what we’re set up to do.
Russ Delmar leads our Rowlett projects. He’s walked dozens of lots between Dalrock Road and the lake shoreline, and he’ll tell you straight what your foundation needs before you spend a dollar. Our crews are background-checked and uniformed, so you always know who’s on your property. And when you call (361) 204-4652, a live person answers. Not a voicemail, not a chatbot. Day or night.
Every Lodgewick project operates under The Kingswell Guarantee. That means a written price before work begins, no exceptions. A written guarantee on every build, delivered before the first nail goes in. And our 365-Day Done Right Promise: if any part of the work isn’t right within a year, we come back and make it right. Free return visit, no argument. That commitment is in writing on every single project.
Bathroom Addition Contractor in Rowlett
A Bathroom Addition Contractor in Rowlett does more than tie into plumbing and call it done. On a lake-adjacent lot, a full bath addition means running supply and drain lines through a crawlspace or slab, venting properly so humid air doesn’t feed mold inside your walls, and making sure the city inspector signs off on the rough-in before drywall goes up. Rowlett homeowners add bathrooms most often when an aging parent moves in, when a growing family can’t share one hall bath anymore, or when a primary bedroom needs its own en suite. Expect to spend $45,000 to $85,000 for a standard 60-to-100-square-foot full bath added onto an existing floor plan.
What the plumbing rough-in actually involves
We run new supply lines from your water heater, tie the drain into your existing sewer lateral, and vent through the roof or an exterior wall. On pier-and-beam additions near the lake, we insulate the crawlspace lines so a hard freeze doesn’t burst a pipe under your new bathroom. Rowlett reviews every rough-in before we close the walls, which protects you from hidden leaks later.
When a bathroom addition needs an electrical panel upgrade
A new full bath often means a dedicated 20-amp circuit, a GFCI outlet, and a vent fan. That can push an older panel over its rated capacity. We run the load calculation early and include any panel work in your written price, so you’re not hit with a change order mid-project.
Bedroom Addition Contractor in Rowlett
A Bedroom Addition Contractor in Rowlett starts with the foundation question: slab or pier-and-beam? If your lot slopes toward Lake Ray Hubbard or sits anywhere near a FEMA flood zone, the answer is often pier-and-beam, and that changes both cost and timeline. A standard 12-by-16 bedroom addition runs roughly $45,000 to $75,000 in this city, depending on whether it shares an existing wall or needs a bump-out with its own roofline. Rowlett homeowners add bedrooms when a second child arrives, when an in-law moves in for good, or when a home office finally becomes a permanent bedroom instead of a folding couch in the den.
Why foundation choice drives the bedroom addition price
Slab work is faster and cheaper on flat, well-drained lots. But clay soil swells and shrinks, and a bedroom addition on a slab that wasn’t engineered for Rowlett soil movement will show door misalignment and drywall cracks within a year. Pier-and-beam costs more upfront, usually $15,000 to $30,000 extra, and it’s the right call on the lake side of the city. We’ll tell you which one your lot needs before we quote a price.
Heating, cooling, and code compliance for bedroom additions
Rowlett building code requires a heat source in every bedroom. We tie into your existing HVAC where the load allows, or install a ductless mini-split when it doesn’t. Egress windows are code here too; we size and place them so the bedroom is legal for occupancy, not just for storage.
Trusted Brands We Service in Rowlett
Our Rowlett crews work with the brands homeowners ask about by name. We install James Hardie fiber-cement siding because it stands up to North Texas hail and lake humidity without warping or swelling. For prefab and modular additions, we work with Boxabl and Tuff Shed where the project fits; a Boxabl module can cut weeks off a bedroom addition timeline, and a Tuff Shed shell is a practical starting point for a garage conversion or studio bump-out. We keep relationships with local Rowlett suppliers so materials don’t sit on a loading dock waiting for a truck from Dallas. When you call (361) 204-4652, ask us which brand makes sense for your lot and budget. We’ll give you a straight answer, in writing.
Common Home Addition Contractor Problems We See in Rowlett Homes
- Slab-on-grade on lake-adjacent lots. Contractors pour a standard slab without pulling the FEMA flood map, the inspection fails, and the homeowner pays for a re-engineered foundation. We pull floodplain records before the quote, not after the pour.
- Clay soil movement cracking brand-new drywall. Expansive clay near Lake Ray Hubbard shifts through wet and dry cycles. A pier-and-beam crawlspace with proper footing depth handles it; a shallow slab doesn’t.
- Skipped electrical load calculations. Adding a bedroom and bathroom can push an older panel past capacity. Rowlett requires a second inspection cycle for panel upgrades, and skipping the calc upfront means a surprise delay and cost.
- Permit work hidden from the homeowner. Rowlett’s Building Inspection Division reviews additions at multiple stages. We pull every permit, schedule every inspection, and handle the paperwork so you’re not the one chasing the city.
Pricing for Home Addition Contractor in Rowlett, TX
Here’s what Rowlett homeowners actually pay for home additions based on the projects we’ve scoped in this city. A bedroom addition runs $45,000 to $75,000. A full bathroom addition runs $45,000 to $85,000. A combined bedroom-and-bath suite runs $95,000 to $190,000. A second-story addition starts around $150,000 and can reach $300,000 depending on roof structure. Sunrooms run $35,000 to $90,000. Garage additions run $50,000 to $110,000. Bump-outs run $30,000 to $60,000. Foundation type, soil conditions, permit requirements, and finish level all move the number. We give you a written line-item price before work begins, so the number you approve is the number you pay. Call (361) 204-4652 for a free estimate.
We Also Serve Cities Near Rowlett
Our crews cover Rowlett and the surrounding communities. We regularly build additions in Rowlett, and we schedule work in Garland, Richardson, Balch Springs, and Plano for homeowners who want the same written price and guarantee. If you’re in the eastern Dallas suburbs, call us at (361) 204-4652 and we’ll send someone to walk your lot.
Serving Rowlett, TX - Our Local Coverage Area
We’re based in the Rowlett 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 Home Addition Contractor in Rowlett
You might. Rowlett reviews every addition against current FEMA flood maps, not just the ones near Lake Ray Hubbard’s shoreline. FEMA redesignated portions of Rowlett’s flood fringe in recent years, and some lots that never flooded are now in a regulated zone. We check your address before the quote and pull the permit when the city requires it. Call (361) 204-4652 and we’ll check your lot for free.
Rowlett treats a bedroom-plus-bath addition as a single project with staged inspections, and the city inspects framing, plumbing rough-in, electrical rough-in, and final. Each stage must pass before the next begins. We schedule every inspection and attend each one, so you’re never left explaining a failed inspection to the city yourself. Call (361) 204-4652 for an exact timeline on your project.
Expansive clay soil and lake-adjacent slopes make standard slabs unreliable on much of Rowlett’s east side. Clay swells when wet and shrinks when dry, and a slab that isn’t engineered for that movement will crack. Pier-and-beam with a crawlspace isolates the structure from soil movement and provides access for plumbing and electrical work. It costs more upfront and prevents expensive repairs later.
Rowlett allows prefab and modular construction for additions, provided the module meets the same structural and energy codes as stick-built work. Prefab can shorten the build timeline by weeks, especially for bedroom and studio additions. We work with Boxabl and Tuff Shed shells where they fit the project. Call (361) 204-4652 and we’ll tell you honestly whether prefab makes sense for your lot.
Foundation surprises, usually. If we open the ground and find undocumented fill, a broken sewer lateral, or soil conditions different from the original survey, the scope changes. The same applies if Rowlett’s inspector requires changes beyond the original plan. Our written price reflects what we can see before work starts; any change order gets its own written line item and your approval before we proceed. Call (361) 204-4652 for a free estimate.
Written by Russ Delmar, Owner at Lodgewick ADU Dallas, serving Rowlett and the eastern Dallas suburbs.
