Home Additions in the Rio Grande Valley, TX
You can stay in the house while the addition goes up outside its walls. The wall between old and new opens near the end, usually for 3 to 5 days.
You can add square footage to your Valley home with us, from Rio Grande City to Brownsville. Most additions take 2 to 6 months from permit to final walk. David Aceves built new houses from the slab up with Cuates Construction before he started adding onto them.
What the job includes02
What a home additions job with us includes
An addition in the Valley has to survive what the rest of your house already survives. Summer roof surface temperatures pass 160 degrees, so the new attic needs its own airflow instead of a borrowed vent. Spring hail and straight-line wind hit the new roof plane the same week they hit the old one. Hurricane season runs June through November. In Brownsville, Los Fresnos and Port Isabel, a windstorm inspection may be required for the addition to stay insurable. We check that by address before we quote.
- —Lot measured, floor plan drawn to scale and a drawing of each exterior wall
- —Permit package prepared and filed for your address, by us
- —Slab poured on compacted fill, or piers where the lot calls for them
- —Framing, roof tie-in and new decking that follows the existing roof line
- —Rough and finish work by a licensed plumber and a licensed electrician
- —Cooling load recalculated so the new room does not starve the rest of the house
- —Insulation, drywall, texture and paint carried into the old walls with no ridge showing
- —Exterior finish matched to the brick, stucco or siding already on the house
Price range03
How much does home additions cost in the Rio Grande Valley?
3 to 4 months of construction for a 400 square foot room addition
Two months for a small bedroom. Six months when a second story and full plans are involved.
Which material holds up best in Valley weather?
| Material | Holds up because | Watch out for | Best for | Lasts |
|---|---|---|---|---|
| Slab on grade | Matches how most Valley homes are built, so the new floor meets the old one flat | The plumbing sits in concrete, so a later change means cutting the slab | Bedrooms and family rooms that open straight into the existing house | 50 years or more |
| Pier and beam | Lifts the floor where the lot sits low or drains slowly after a storm | Leaves a step between old floor and new unless the framing is planned for it | Lots near a resaca, a drainage ditch or standing water | 40 years or more with the piers checked |
| Brick veneer matched to the house | Takes the sun with no maintenance and reads as original from the curb | Brick fired in the 1980s rarely matches today, so the seam can show | Homes whose brick is still clean and unpainted | 50 years or more |
| Stucco or fiber cement siding | Wraps old and new in one finish, so the addition stops looking added on | Stucco cracks along the line where new foundation settles against old | Additions where matching the original brick is no longer realistic | 25 to 40 years |
How we work this job04
How does the job actually run?
A written estimate before anything starts, a start date we commit to, and one person responsible from the first walkthrough to the last inspection.
- 01We walk the lot and the houseDavid measures the house, reads the roof line and the panel, and finds where your setbacks fall. The visit runs 45 to 90 minutes and costs nothing.Week 1
- 02You see a floor plan and a drawing of every wallThe drawings show new walls, doors, windows and how the roof ties in. You move rooms on paper, before a permit is filed.Weeks 1 to 4
- 03Permits get pulled for your addressRules change city by city here, and county land outside city limits reads differently again. We check yours and file the package. Nothing gets dug until the permit is in hand.Before we break ground
- 04Foundation, framing and dry-inSlab or piers first, then framing, then the tie-in to the existing roof. The new space is dried in before any trade works inside it.Months 1 to 3
- 05Trades, finishes and the punch listPlumbing, electrical and AC rough in and pass inspection. Then drywall, paint and floor. We walk a written punch list with you before the last payment.Months 2 to 6
From the build site05
Which homes has David Aceves helped build?
Homes built by Cuates Construction, with David Aceves on the build. Look at rooms framed and finished from the slab up: David plans a home additions job with that same eye.
Questions we get06
Questions homeowners ask us about this work
How long does a room addition take from the first drawing to move in day?
Plan on 2 to 6 months. Drawings and permits usually take 3 to 6 weeks before anyone digs. A 400 square foot room addition then runs 3 to 4 months of construction. A second story pushes you to the far end of that range.
Do I need a permit and a set of plans for an addition?
Yes to plans, and the permit depends on your address. Every city in the Valley handles residential additions its own way, and county land outside city limits is different again. We check the rules for your address, draw the plans and file the package before anyone breaks ground.
Is it cheaper to add on or to buy a bigger house?
Run the math on both. In Starr County, 72 percent of homes are owner occupied, and the median home was built in 1987. Families here often own a paid-off house on land they like. An addition keeps both and skips closing costs and a new mortgage rate.
Will the addition look added on from the street?
Three joints decide that: the roof line, the exterior finish and the floor height. We tie the new roof into the existing plane instead of standing a second roof beside it. Brick fired in the 1980s rarely matches today. On older homes we often wrap old and new in one stucco or siding finish.
Can we live in the house while you build the addition?
Most families do. The addition goes up outside the existing walls. That wall stays closed until framing and roofing are finished. We open it near the end, usually for 3 to 5 days, behind plastic and a temporary door.
Does my air conditioner have to grow with the house?
Usually, yes. Add 400 square feet to a house whose unit was sized for the old plan, and every room runs warmer. We recalculate the cooling load before framing. The options are a bigger unit, a second system or a mini split for the addition alone.
Why does an addition cost more per square foot than the original house did?
A house gets built once, with one mobilization and one crew sequence. An addition repeats that on a smaller area. It also opens a finished wall, matches an existing roof and works around a family living there.
What if my house is on a septic system?
The septic gets checked before the plan is final. Adding a bedroom can change what an on-site system has to handle, and the county office reviews that. We confirm the requirement for your address while the drawings are still open, not after the slab is poured.
A remodeling contractor based in Rio Grande City, working across the four Valley counties. The team is led by David Aceves, whose background is building custom homes, from the slab and the framing to the finish work.
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Let us talk07