Detached ADUs
A complete independent living space built directly on your property.
- Private entrance
- Kitchen
- Bathroom
- Living space
- Custom floor plan
Washington & Iron County, Utah
ADU & CASITA BUILDERS IN SOUTHERN UTAH
Prestigious Home Builders designs and builds custom ADUs, casitas and garage conversions throughout Washington & Iron County, handling your project from permits through final walkthrough.
Limited monthly build offer
SAVE $7,500On your ADU or casita build
Available on eligible builds booked this month.Licensed B-100 • Design + Permits • Locally Owned • Southern Utah
Free on-site consultation
Get Your Free
On-Site ADU Estimate
Tell us what you're planning. It takes less than a minute and helps our team prepare for your property.
25%
What would you like to build?
200+
Southern Utah Projects
15+
Years Experience
Licensed B-100
General Contractor
Washington + Iron
Counties Served
Built around how you live
What Do You Want to Build?
Whether you need space for family, guests, independent living or a complete garage conversion, Prestigious creates custom solutions designed around your property.
Casitas & Guest Houses
Comfortable private space for parents, adult children, guests or extended family.
- Private bedroom
- Full bath
- Kitchenette or kitchen
- Independent living
Garage Conversions
Turn underused garage space into a finished, comfortable living area without adding a separate structure.
- Insulation
- Electrical
- HVAC
- Bathroom
- Kitchenette
- Interior finishes
Photography shown from completed Prestigious Home Builders projects; service imagery demonstrates relevant scale and craftsmanship.
Real Prestigious transformation
See the Quality
of a Prestigious Build
This project demonstrates the construction quality and finish standards the Prestigious team brings to complex residential work.
Project transformation
Project
Full Home Transformation
Scope
Construction • Finishes
This verified whole-home transformation demonstrates Prestigious craftsmanship and is not presented as an ADU before-and-after.
One team from start to finish
Build Your ADU Without Managing Five Different Contractors
Prestigious Home Builders coordinates every major phase, giving you one accountable team throughout the build.
01
Design
We shape the floor plan around your property, available space and goals.
02
Permits
Our team coordinates the required documentation and permit process.
03
Site + Foundation
We prepare the site, utilities and foundation before vertical construction.
04
Construction
Your ADU is built with professional trades and a coordinated construction process.
05
Final Walkthrough
We complete finish work and review the project before handoff.
Limited monthly build offer
Save $7,500 On Your ADU or Casita Build
Available on eligible builds booked this month.
$7,500Build credit
What we handle
Your Build, Managed From Start to Finish
01
Custom Design & Floor Plan
Layouts designed around your space, property and goals.
02
Permits & Approvals
Coordination of required permit documentation and approvals.
03
Foundation & Framing
Structural construction from foundation through framing.
04
Plumbing & Electrical
Professional installation of the systems required for a complete living space.
05
HVAC & Insulation
Comfortable year-round climate control and energy-conscious construction.
06
Interior Finishes
Flooring, tile, cabinetry, paint and finish selections tailored to your build.
What homeowners say
Built With Care. Remembered for the Details.
★★★★★
“Prestigious built us a beautiful casita in the back for my parents. They handled permits, everything. On time, on budget, and the finish work is incredible.”
Jenna M.
St. George, Utah
★★★★★
“We added a detached ADU as a rental. Prestigious walked us through design and every permit. Easiest contractor we've ever worked with.”
Devin H.
Hurricane, Washington County
★★★★★
“Converted our garage into a full guest suite with kitchenette. Their crew treated our property like their own. Would hire them again in a heartbeat.”
Rachel B.
Washington, Washington County
The Prestigious difference
Built Like a Home.
Not Like an Afterthought.
The Typical Experience
- Multiple contractors to coordinate
- Generic layouts
- Unclear project communication
- Unknown schedules
- Budget surprises
- Basic finish options
The Prestigious Experience
- One team from planning through construction
- Custom layouts for your property
- Clear project communication
- Defined construction process
- Detailed written scope
- Premium finish options
How it works
From First Conversation to Finished ADU
01
Tell Us About Your Property
Complete the short form or call our team.
02
Free Site Consultation
We evaluate the property, goals and potential project requirements.
03
Design + Build Plan
We develop the project scope and coordinate the steps required before construction.
04
We Build
Our construction team manages the project through final walkthrough.
Prestigious craftsmanship
Real Southern Utah
Project Craftsmanship
Explore exterior, living-space, kitchen, bedroom and bathroom craftsmanship completed by the Prestigious Home Builders team—details relevant to a beautifully finished ADU or casita.
Featured project
Exterior • Kitchen • Bath • Bedroom • Living Space
Craftsmanship details
These verified Prestigious projects demonstrate the team's finish quality and construction capability. Images are not presented as documented ADU projects where that project type is unverified.
ADU questions
Questions Southern Utah Homeowners Ask Us
Clear answers before you decide what belongs on your property.
Every property and project is different. Size, site conditions, utility connections, foundation requirements and finish selections all affect the final cost. Prestigious provides a free on-site consultation so we can evaluate your property and prepare a project-specific estimate.
Space with purpose
More Space for the People Who Matter Most
A private casita or ADU can give parents, adult children and visiting family their own comfortable space while keeping everyone close to home.
Aging Parents
Nearby support with greater independence and privacy.
Adult Children
A real living space while they work toward their next chapter.
Guests & Family
Comfortable accommodations without giving up space inside your main home.
Washington & Iron County homeowners
Ready to Build Your
ADU or Casita?
Tell us what you're planning and we'll schedule a free on-site consultation to discuss your property, goals and next steps.
Save $7,500 on eligible builds booked this month
Licensed • Insured • Locally Owned • Southern Utah