Service
Home Additions
$120K–$350K · 6–10 WEEKS DESIGN AND PERMITS + 3–6 MONTHS CONSTRUCTION
Western Desert Construction builds home additions across Gilbert, Mesa, Chandler, Queen Creek, Scottsdale, Tempe, and Phoenix, including primary suites, casitas, and bump-outs. Most additions cost $120,000–$350,000 and take 4–8 months from design through construction.
Materials
Sample table
How much does a home addition cost in the East Valley?
Most additions we build run $120K–$350K. A modest bump-out sits near the low end. A primary suite with a bath, or a casita with its own kitchenette, lands higher. Foundation, roof tie-in, and mechanical runs usually cost more than the finishes.
Do you build casitas and primary suites?
Yes. Primary suites, guest casitas, and smaller bump-outs are the additions we take on. The new work is detailed to match the existing roof, stucco, and floor lines so it does not read as an add-on.
Will an addition match the existing house?
That is the point of the design phase. We match eave height, stucco texture, window proportion, and flooring so the addition feels original. Where the existing house cannot be matched exactly, we show you the difference before we build it.
What's included
- —Design, engineering, and permits
- —Foundation and roof tie-in
- —Framing, stucco, and exterior details
- —Electrical, plumbing, and HVAC
- —Interior finishes to match the house
- —One project lead from permit to walkthrough
Questions
How much does an addition cost?+
Most additions we build cost $120,000–$350,000, depending on size, foundation, and whether the new space includes a bath or kitchenette.
How long does an addition take?+
Typically 3–6 months of construction after 6–10 weeks of design, engineering, and permitting.
Do you handle HOA approval?+
Yes. When a community requires it, we prepare the submittal and revise it with you before anything is filed.
Can we live in the house during construction?+
Usually, yes. The new space is outside the existing footprint for most of the build. Tie-in weeks are the disruptive part, and we schedule those with you.
Do additions need a permit?+
Yes. Additions are permitted and inspected. We pull the permit and meet the inspectors.
What warranty do you offer?+
Every remodel and addition includes a 2-year workmanship warranty, plus manufacturer warranties on installed products.