Home Addition Contractor in Roanoke, TX
Birdseye Construction designs and builds Roanoke home additions — main-floor additions, second stories, and in-law suites, all at a fixed price with engineering-stamped plans behind every permit.
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Home additions in Roanoke, TX run $185–$400+ per square foot — main-floor additions, second-story additions, and in-law suites — with smaller projects at the higher end because engineering, roof work, and tie-ins are fixed costs. Birdseye Construction designs and builds them on a fixed-price contract, with a structural engineer’s evaluation up front and permits pulled for you.
What a Home Addition Costs in Roanoke
We publish real numbers because guessing helps no one. Every addition is priced as a fixed-price contract — the number you sign is the number you pay, with any change you request handled through a documented, signed change order.
| Addition Type | Typical Cost | What to Know |
|---|---|---|
| Main-floor addition | $185–$400+ per sq ft | Bedrooms, family rooms, kitchen and dining expansions — built on an engineered foundation tied into the existing structure. |
| Second-story addition | upper end of range | Adds space without losing yard — requires a structural evaluation of the existing foundation and framing first. |
| In-law / guest suite | $185–$400+ per sq ft | Bedroom, bath, and living space for multigenerational living — zoning confirmed with the City of Roanoke before design. |
Built on Engineering, Not Guesswork
Every Birdseye addition starts with a structural engineer’s evaluation of your foundation and framing, and every permit is backed by engineering-stamped plans — with North Texas soil conditions accounted for from the foundation up. You don’t need to hire an architect separately: design happens in-house, so design, engineering, and construction stay under one contract and one fixed price.
Building Onto Roanoke Homes
Roanoke is our home town — Birdseye is headquartered here — and additions are how many of our neighbors stay in it: a main-floor suite when the family grows, a second story when the lot can’t spread out, or a sunroom that turns a patio into year-round space. Every project is designed in-house, minutes from your door.
How the Process Works
An initial consultation at your home — a structural evaluation and fixed-price quote — the in-house design phase with every material selected and approved — permits pulled by us through the City of Roanoke — then construction, with city inspections passed at every required stage and a final walkthrough before we call it done.
See our main floor and 2nd story additions page for the full service and portfolio, or our Roanoke remodeling page for whole-house remodeling.
Additions in Roanoke: Read the PD Before You Read the Code
Our office is on Haslet-Roanoke Road, so Roanoke is the city we know best and the one our crews reach fastest. It is also a city where the usual approach to checking setbacks does not work, and that is worth explaining.
Nearly all of modern Roanoke was entitled as Planned Development districts rather than conventional base zoning — Fairway Ranch, Highlands Glen, Briarwyck and Slaughter Ranch, Marshall Creek, Bobcat Corners, Glenmere, Homestead and others each carry their own PD ordinance. Setbacks, accessory structure rules and often architectural standards live in that ordinance, not in a single citywide table. The first thing we do on a Roanoke addition is identify the governing PD, because two houses a few streets apart can be working from genuinely different rules. The historic core adds its own layer through the Old Town Roanoke Overlay District and the Oak Street Corridor Zoning District.
Roanoke’s housing is young — median build year 2008, with about 44 percent of all homes built between 2010 and 2019 and another 31 percent from the 1980s and 1990s. Additions here are usually driven by space rather than condition: a growing family, a home office, an in-law suite, rather than a failing house.
The permitting sequence has two Roanoke-specific gates worth planning around. Stormwater pollution prevention approval from Public Works Environmental Services is required before the building permit application is submitted, not alongside it. And the grading and drainage plan has to match the subdivision grading plan; on a single lot, or in a subdivision without an engineered drainage plan, an engineered drainage study is required instead. The city also asks for an engineered foundation plan with an engineer’s cover letter referencing a soil report, plus engineered framing, floor truss layout and wall bracing plans. Fire sprinklers are required once under-roof area exceeds 5,000 square feet. Roanoke runs the 2021 International Codes with the 2023 NEC, and Development Services states a ten working day plan review goal.
Frequently Asked Questions
How much does a home addition cost in Roanoke, TX?
Home additions run $185–$400+ per square foot — smaller projects sit at the higher end because engineering, roof work, and stairs are fixed costs. Every Birdseye addition is quoted as a fixed price before work begins.
Can you add a second story to my house?
Usually, yes — it starts with a structural engineer’s evaluation of your foundation and framing. If the structure supports it, a second-story addition adds space without losing any yard, with engineering-stamped plans behind the permit.
Do you build sunrooms in Roanoke?
Yes — sunrooms and enclosed patios are one of our most requested Roanoke additions, engineered and permitted like any addition and priced as a fixed cost before work begins.
Who pulls the permits for an addition in Roanoke?
We do. Birdseye is registered with the City of Roanoke and provides the city its list of licensed trades before work is released for construction.
Should I build an addition or move to a bigger house?
Homes are priced by the square foot — if you love your neighborhood, building onto what you own usually wins: no commissions, no moving costs, and you keep your mortgage rate while every dollar becomes space you designed.
Why does my neighbour’s addition follow different rules than mine in Roanoke?
Because most of Roanoke is zoned as Planned Developments, and each PD ordinance carries its own setbacks, accessory structure rules and often architectural standards. Fairway Ranch, Highlands Glen, Marshall Creek and the rest are not governed by one shared table. We identify the controlling PD before designing anything.
What has to happen before a Roanoke addition permit is submitted?
Stormwater pollution prevention approval from Public Works Environmental Services comes first — it is a prerequisite to submittal rather than part of it. You will also need a grading and drainage plan matching the subdivision plan, or an engineered drainage study if there is not one, plus engineered foundation, framing and wall bracing plans. We sequence all of it so the submittal is complete on the first pass.
Let’s price your Roanoke addition
A free walkthrough and a fixed-price scope for your exact project — no pressure, no guesswork. Headquartered in Roanoke, serving Roanoke, Trophy Club, Haslet, North Fort Worth, Northlake, Westlake, Justin, Keller, Southlake, and Colleyville.
Request a Free Estimate Call (817) 800-6920