







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 Missouri City
Adding square footage to your Missouri City home usually costs between $180 and $340 per square foot depending on whether you’re building out, building up, or converting existing space. That’s the honest range we quote at Lodgewick ADU Houston. A second-story addition on a Quail Valley ranch runs differently than a bump-out off a master suite in Sienna, and we walk through those numbers before a single nail is driven. If you’re weighing a Home Addition Contractor for a project in Missouri City, call (361) 326-2313 and we’ll put a written price in your hand.

We know Missouri City’s streets, its Planned Development zoning quirks, and its floodplain maps because our crews work them every week. Russ Delmar leads our team, and he’ll be the one making sure your estimate reflects what the city will actually approve, not a generic number pulled from another market.
Why Lodgewick ADU Houston Is Missouri City’s Preferred Home Addition Contractor Company

Missouri City homeowners call us because we put the price in writing before work starts. Every time. That’s The Kingswell Guarantee, and it’s not a marketing line. It’s a document we hand you at the estimate. If the number changes after we open a wall, that’s on us, not you. Most of our Missouri City clients tell us they’d been burned before by a contractor who gave a verbal ballpark and then padded the invoice at drywall. We don’t play that game.
Our reputation in Missouri City is built on showing up in the window we give, leaving the job site cleaner than we found it, and coming back if something isn’t right. The 365-Day Done Right Promise backs that in writing. If your addition has an issue within a year, we return and fix it. Free. That’s not a slogan; it’s the guarantee we deliver with every build.
Response time to Missouri City matters when you’re coordinating a family around construction. Dispatch and scheduling run from our Houston office, but our crews serve Missouri City locally. You’ll get a defined arrival window, not a vague “sometime this week.” And when you call with a question mid-project, a live person answers. Not a voicemail. Not a chatbot. A person who can look up your job and give you a straight answer at 2 p.m. or 2 a.m.
Second Story Addition Contractor in Missouri City
A second story addition contractor in Missouri City typically handles projects where the lot is too narrow for a horizontal expansion or the homeowner wants to preserve yard space for kids and dogs. Many of Missouri City’s original 1960s and 1970s ranch homes in neighborhoods like Quail Valley East and Hunters Glen sit on lots that can’t accommodate a wide footprint, so the only way to add two bedrooms and a bath is up. We’ve done enough second-story work in Missouri City to know what the structural engineer will demand before the plans go to the city.
The cost of a second-story addition in Missouri City runs $220 to $340 per square foot. That’s higher than a single-story bump-out because you’re dealing with roof removal, temporary weather protection, stairwell construction, and often reinforcing the first-floor framing to carry the new load. A 600-square-foot second story typically lands between $132,000 and $204,000 before finishes. That number includes engineering, permits, and the written guarantee. It does not include surprises, because we price for what the city will actually require.
Designing Around Missouri City’s Rooflines
Missouri City’s older subdivisions have specific architectural rhythms. A second story that ignores the original roofline can look bolted on and can trigger compatibility review in Planned Development districts. We match eave heights, window proportions, and exterior materials so the addition reads as part of the original house. In Quail Valley East, we matched a low-slope 1960s ranch with an ADU whose eave height and fascia detail satisfied the Planning & Zoning Commission on the first submission.
The Foundation Question Nobody Asks
Before you budget for a second story, you need to know what’s under the first. Many Missouri City homes sit on slab foundations that weren’t engineered for a second floor. We bring in a structural engineer early to assess load paths and specify any reinforcement. If piers or beam work are needed, that cost gets added to your written estimate before you sign anything, not after demo starts.
Garage Addition Contractors in Missouri City
Garage addition contractors in Missouri City handle two different jobs that often get confused. The first is adding a garage where none exists, which costs $60 to $120 per square foot for an attached two-car structure, or slightly more for a detached garage with an apartment above. The second is converting or expanding an existing garage into living space, which runs $120 to $180 per square foot. Both require navigating Missouri City’s permit path, and that’s where local experience saves you weeks.
A garage addition in Missouri City makes particular sense on older lots where alley access exists or where the side setback leaves room for a wider driveway. But before your contractor stakes out the foundation, Missouri City’s Planning Department may require a pre-submission meeting if your property sits inside a Planned Development district. Skipping that meeting is the most common reason garage addition permits get rejected on the first pass.

Floodplain Reality Along Oyster Creek
If your Missouri City lot touches Oyster Creek, your garage addition isn’t a simple slab job. The city’s floodplain management ordinance triggers an elevation certificate requirement, and the foundation typically has to shift from slab to pier-and-beam. We’ve seen builders price these projects as standard residential additions, then watch the cost jump by $15,000 to $25,000 when the city flags the floodplain review. We factor that into your written price from day one.
The MUD Inspection Sequence
Fort Bend County MUD districts serving Missouri City require a stormwater pre-construction inspection before any excavation begins. The inspector only visits twice a week in many districts, so if your crew starts digging before that inspection is called in, the permit gets red-tagged and the job stops for days. We schedule the inspection before the equipment arrives. It’s a small thing that keeps your calendar honest.
Trusted Brands We Service in Missouri City
Lodgewick ADU Houston works with established prefab and materials suppliers, and we stock or order what Missouri City clients need without long lead times. For garage additions and attached units, James Hardie siding and trim hold up to Missouri City’s heat and humidity better than wood and require far less maintenance. For prefab ADU shells, we’ve installed Boxabl and Plant Prefab units on Missouri City lots where the customer wanted a factory-built core with site-built finishing. These brands work particularly well for faster garage apartment timelines, though the same zoning and floodplain rules still apply regardless of how the shell arrives.
Common Home Addition Contractor Problems We See in Missouri City Homes
- Roof pitch mismatches in Planned Development districts. Missouri City’s zoning requires architectural compatibility review, and an addition whose roof slope doesn’t mirror the original house gets bounced. We design to the existing roofline from the start, which is why our first-submission approval rate in these districts is strong.
- Foundation surprises on expanding clay soils. Missouri City sits on clay that moves with seasonal moisture swings. A home addition that was priced without a soils report can turn into a $20,000 foundation redesign. We pull soils data before we write your estimate.
- Permit red-tags from missed MUD inspections. Fort Bend County MUD districts require specific pre-construction stormwater inspections, and the inspector’s schedule is limited. Contractors unfamiliar with the MUD calendar leave your project idle for a week or more. We book inspections before excavation starts.
- Attic HVAC and electrical overloads. Many Missouri City homes built in the 1980s and 1990s have HVAC systems sized for the original footprint. Adding 400 square feet without upsizing the system leaves the new space hot in July and cold in January. We calculate the load, specify the right unit, and include it in the written price.
Pricing for Home Addition Contractor in Missouri City, TX
Missouri City home addition pricing falls into clear bands. Room additions and bump-outs run $180 to $260 per square foot. Second-story additions run $220 to $340 per square foot. Garage additions run $60 to $120 per square foot for basic attached structures, or $120 to $180 per square foot when you’re converting garage space to living area. Sunrooms land at the lower end of the room addition range, typically $180 to $240 per square foot, depending on glass ratios and foundation depth. Bathroom additions are priced by fixture count and waterproofing scope rather than square foot alone; a full three-piece bathroom addition in Missouri City usually runs $45,000 to $75,000.
These ranges assume the written estimate process we run at Lodgewick ADU Houston. You’ll get a line-item price before anything is signed. If your lot sits near Oyster Creek, expect floodplain costs inside the number, not tacked on later. Call (361) 326-2313 for your free estimate.
We Also Serve Cities Near Missouri City
Our crews work across the southwest Houston metro, and we regularly take on projects in Stafford, Sugar Land, Manvel, and Richmond. If you’re outside Missouri City but still want a written price before work begins, call us and we’ll let you know if we cover your street. The same Kingswell Guarantee applies everywhere we work.
Serving Missouri City, TX - Our Local Coverage Area
We’re based in the Missouri City 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 Missouri City
Yes, and this is the single biggest point of confusion for Missouri City homeowners. If your property sits in a Planned Development zoning district, an attached ADU requires discretionary review by the Planning & Zoning Commission, not just the standard building permit. The commission looks specifically at architectural compatibility: roofline, eave height, fascia detail, and exterior materials. A detached ADU on a standard residential lot often clears with a building permit alone, but attached units inside PD districts almost always trigger the extra review. This adds 4 to 8 weeks to the timeline depending on the commission’s meeting calendar. We handle that sequence for you and design to the compatibility standards from the first drawing. Call (361) 326-2313 and we’ll check your property’s zoning before you spend a dollar.
Any lot that touches Oyster Creek or sits within a mapped floodplain triggers an elevation certificate requirement before the city issues a foundation permit. In practical terms, your ADU’s slab foundation has to be redesigned as pier-and-beam with the finished floor raised to the required elevation, or the project needs a floodproofing strategy approved by the city engineer. The cost difference between a standard slab and a compliant pier-and-beam foundation on these lots typically runs $15,000 to $25,000 depending on the elevation delta. Builders who skip the floodplain review at pricing time are the ones who deliver a change order later. We price it upfront. Call (361) 326-2313 to have us pull the FEMA panel and confirm whether your lot is affected.
A straightforward garage addition on a Missouri City property served by a Fort Bend County MUD runs 6 to 10 weeks from plan submission to permit issuance. The MUD component adds a stormwater pre-construction inspection that must be called in before excavation, and that inspection typically happens on the MUD inspector’s scheduled days rather than on demand. We book that inspection date at the same time we submit building plans, which keeps the overall timeline from stretching. The city’s building permit review is the longest pole in most cases, especially if your property requires Planning & Zoning Commission review. For an exact timeline on your street, call (361) 326-2313 and we’ll map it out.
Plant Prefab and Boxabl both have a track record in Missouri City’s PD districts, but Plant Prefab gets approved more often because their panelized system is easier to customize for architectural compatibility review. A factory-built shell with a fixed roof pitch and standard eave detail can struggle when the P&Z Commission wants the ADU to mirror a 1960s low-slope roofline. Plant Prefab’s panel approach lets us adjust eave height and fascia treatment to match the primary house, which satisfies the compatibility standard without abandoning the prefab cost advantage. That said, the brand matters less than the designer’s familiarity with Missouri City’s review criteria. Call (361) 326-2313 and we’ll walk you through which manufacturers fit your lot and zoning.
Fort Bend County MUD districts require a stormwater pre-construction inspection before any excavation begins on a project that increases impervious cover, and an ADU or garage addition almost always qualifies. The MUD inspector verifies that your erosion controls, silt fencing, and drainage plan are in place and that the proposed stormwater detention strategy matches the permit documents. This inspection is separate from city building inspections and happens on the MUD’s schedule. In most districts serving Missouri City, the stormwater inspector visits twice a week, so a missed appointment adds days, not hours. We call in the inspection before equipment arrives. For help sequencing your MUD and city inspections, call (361) 326-2313.
Written by Russ Delmar, Owner at Lodgewick ADU Houston, serving Missouri City under The Kingswell Guarantee.








