ADU Construction

Thoughtfully built casitas and ADUs with clear timelines, transparent pricing, and quality craftsmanship throughout St. George and surrounding areas.

Freshly remodeled adu in Hurricane, UT

OUR ADU CONSTRUCTION SERVICES

ADUs require careful planning before construction to stay code-compliant and on budget. In Southern Utah, a completed unit can generate $1,200–$2,500 per month in rental income.

Design + planning

Casitas and ADUs require careful planning around zoning, layout, and livability. We design a space that functions independently while fitting your property and long-term goals. Designers or drafters finalize plans before building starts.

Project Management

We manage scheduling, permits, inspections, and trade coordination from start to finish. Because ADUs involve more regulation, clear communication keeps the project moving smoothly. You’ll always know what’s coming next.

CONSTRUCTION + SITE CARE

From site prep and framing to final finishes, we manage every phase of construction. We protect your existing property, maintain organized job sites, and minimize disruption so the build feels controlled, not chaotic.

Cabinets + Storage

We install kitchen and bathroom cabinetry designed for smaller living spaces. Storage is planned to maximize function without crowding the layout, using durable materials that hold up to daily use in rental or guest environments.

Plumbing

We install plumbing systems for kitchens, bathrooms, and laundry spaces, including water, sewer, and gas connections as required. All plumbing work is completed to current code and coordinated carefully with framing and finish work.

Electrical + Lighting

Electrical systems are planned to support daily living, safety, and comfort. We install outlets, lighting, and panel connections needed for an independent unit, with layouts designed to make smaller spaces feel open and functional.

Flooring

Flooring is selected for durability, comfort, and ease of maintenance. We prepare subfloors properly and install materials that hold up well in rentals, guest units, or long-term living spaces.

Walls, Ceilings + Finishes

Drywall, paint, trim, and ceiling finishes are completed to create a polished, livable interior. Finishes are selected to balance durability with a clean, modern look that appeals to both homeowners and future occupants.

Structural + Framing

We handle foundations, framing, and structural systems required for detached or attached ADUs. Proper construction ensures the unit meets code, performs well long term, and integrates safely with existing structures when applicable.

Countertops + Surfaces

Countertops and interior surfaces are selected for durability and ease of maintenance. We coordinate materials across kitchens, bathrooms, and utility areas so the ADU feels cohesive, finished, and built for real-world use.

Appliances

We plan and coordinate appliance placement for compact kitchens and laundry setups. Proper sizing, clearances, and utility connections ensure appliances function efficiently without overwhelming the space or causing layout issues later.

Optional / Common Upgrades

Common upgrades include separate utility metering, private entrances, covered patios, vaulted ceilings, upgraded insulation, soundproofing, or enhanced exterior finishes to improve comfort, privacy, and long-term value.

Our Trusted Contractors + Suppliers

We partner with reliable subcontractors and quality suppliers to deliver consistent results on every project.

Recent Casita Remodels

Before and after photos from actual remodeling projects throughout Southern Utah.
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Before
After
Behrmann Casita Remodel in Hurricane, UT
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Before
After
Behrmann Casita Remodel in Hurricane, UT

ADU CONSTRUCTION COST

Prices are averages and may vary depending on the size of your project and the materials used. After the design consultation, you will get an exact quote for your specific project.

BASIC ADU CONSTRUCTION
$125-135k
Best for: Adding a functional living unit with standard finishes and minimal site complexity.

Typically includes:

  • Studio or one-bedroom layout
  • Standard foundation and framing
  • Kitchenette and bathroom
  • Electrical and plumbing connections
  • Basic interior finishes
STANDARD ADU CONSTRUCTION
$200-225k
Best for: Creating a comfortable, fully equipped living space suitable for long-term use or rental.

Typically includes everything in Basic, plus:

  • Full kitchen and bathroom
  • Improved layout and storage
  • Upgraded finishes and fixtures
  • Enhanced lighting design
  • Exterior integration with existing property
HIGH-END ADU CONSTruction
$300k+
Best for: A premium, highly livable unit designed for long-term value or multigenerational living.

Typically includes everything in Standard, plus:

  • Larger footprint or multi-room layout
  • Custom cabinetry and built-ins
  • High-end interior finishes
  • Private outdoor living space
  • Enhanced insulation and energy efficiency
  • Separate utility metering when applicable
  • Architectural exterior detailing
Gold star for reviewsFive-pointed gold star icon.

"You made some great suggestions for layout and it turned out so good. You were really good about adding those additional little services without killing me on the price. Everything just worked out beautiful. The whole casita is just really wonderful now."

Tammy Behrmann
Hurricane, UT Homeowner

ADU CONSTRUCTION FAQs

Common questions about ADU costs, timelines, and regulations.

Are casitas and ADUs legal in my area?

It depends on your city and zoning — regulations vary across St. George, Washington, Hurricane, Santa Clara, and surrounding areas, and they change frequently. Intended use also matters — short-term rentals are more heavily regulated than long-term rentals or personal use. Hop on a free estimate call and we'll help you figure out exactly what's allowed on your property before you commit to anything.

Will the ADU match my existing home?

That’s a priority. We design casitas and ADUs to complement your home’s architecture so the new structure feels intentional, not like an afterthought.

How long does it take to build a casita or ADU?

Most projects take several months from design through completion. Timelines depend on permitting, site work, and complexity. We provide a realistic schedule during planning so expectations are set early.

areas we serve

Serving St. George, Washington, Hurricane, Ivins, Santa Clara, and nearby areas.

Schedule Your Free Estimate

Book a call with McKay to discuss your project, ask questions, and get a clear proposal with pricing and timelines. No pressure, no obligation, just clear next steps.