Home Additions
Add the space your family needs — without moving.
CasaMás Construction designs and builds home additions across Utah, with service available in English and Spanish.
A home addition expands your existing house with new, permitted living space — a bedroom, bathroom, larger kitchen, or a whole second story. CasaMás Construction handles design, permitting, and construction so your addition blends with your current home and serves how your family actually lives.
Who it’s for
Great for growing families, multigenerational living, a home office, or simply more room to breathe — when moving isn’t the answer.
What’s included
Room additions
Add a bedroom, bathroom, or larger living area onto your existing footprint.
Second-story additions
Build up to gain a full floor of new living space on your lot.
Bump-outs
Extend a kitchen, dining area, or bathroom for more usable space.
Primary suites
Add a private primary bedroom and bath designed around comfort.
Multigenerational space
Create connected space for parents or adult children living with you.
How your project works
- 1
Free consultation
We listen to your goals and look at your space — in English or Spanish.
- 2
Design & estimate
Clear scope and a written estimate. Monthly payment examples are estimates.
- 3
Permits & build
We handle permitting and construction with licensed, insured, and bonded crews.
- 4
Enjoy your space
More room, more income potential, and more equity in your home.
What affects your cost
Every addition is different — your cost depends on size, foundation and structural work, finishes, and site conditions. We give you a clear, written estimate after reviewing your home and goals, with no pressure.
Financing options may be available, subject to approval. Monthly payment examples are estimates.
Where we work
CasaMás builds home additions for homeowners across Salt Lake, Utah, Davis, Weber, and Tooele counties. We handle permitting as part of your project, when allowed by local city rules.
- Salt Lake County
- Utah County
- Davis County
- Weber County
- Tooele County
Project photos
Real CasaMás Construction projects across Utah.
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Home office addition with vaulted ceiling -
Bedroom addition with textured walls -
Master walk-in closet with custom built-in shelving on both walls -
Modern dark vertical-cladding home with wood-clad gable end -
Modern dark home mid-construction with ladders and exposed framing on the new addition -
Single-story ranch home with covered back deck above walkout basement -
Brick home with white-sided addition wing and attached garage -
Suburban Utah home with brick and white siding -
Mid-century home with enclosed carport converted to attached garage -
Bright living room addition with dark shiplap fireplace wall
Frequently asked questions
What affects the cost of a home addition?
Size, foundation and structural work, finishes, and site conditions all affect cost. We provide a free written estimate for your specific project; monthly payment examples are estimates.
How long does a home addition take?
Timelines vary by scope and city permitting. We provide an estimated schedule with your written estimate before work begins.
Do I need a permit for an addition?
Most additions require permits. We handle the permitting process as part of your project, when allowed by local city rules.
Can you match my existing home?
Yes — we design additions to blend with your home’s rooflines, materials, and style so the new space looks original.
Do you offer financing?
Financing options may be available, subject to approval. Monthly payment examples are estimates. Ask us during your free estimate.
Related services
Get your free estimate
No pressure. We'll give you clear options for your project.