ADU Basement Contractor in Eagle Mountain, Utah

Utah’s original basement finishing company, serving as an ADU basement contractor for Eagle Mountain homeowners since 1997.

30+ Years in Business

Licensed & Insured

2-Year Builder's Warranty

BBB, NAHB & SLHBA Member

5.0★ Rated on Google

5.0★ Rated on Google (25 Reviews)

Millgate Homes has finished basements throughout Utah County since 1997, and homeowners consistently rate the crew 5.0 stars on Google.

Of all the contractors we reviewed when choosing someone to finish our basement, Millgate Homes was the most professional and competent company and gave us a very cost-efficient bid. They were also able to start the work within a few weeks of me signing the contract. They completed our basement apartment on schedule (maybe even slightly ahead) and within budget, and they did a beautiful job! The subcontractors were polite and easy to work with, and were always quick to respond to any questions or concerns I had, usually within hours. After dealing with other contractors now, I am even more impressed with them. They do what they say they will do, and they are honest and professional, and that is hard to find these days! I would highly recommend them.

Ellen Bahr

Two years ago, we received a bid from Eric [at] Millgate Homes that would allow us to turn our basement into an apartment rental… It stayed right in budget and was always available for phone calls… It is beautiful and of the highest quality.

Louise Harrington

ADU Basement Contractor for Eagle Mountain Homeowners

Millgate Homes works as an ADU basement contractor in Eagle Mountain, Utah, where the city’s own growth is exactly why an internal accessory dwelling unit makes sense for a lot of homeowners here. Eagle Mountain has grown from a town of roughly 250 residents to more than 76,600 as of the start of 2026 — a growth rate of about 6.4% a year — and 82% of the city’s housing stock is single-family homes, most of it built within the last two decades with an unfinished basement already sitting under the main floor. That combination of newer construction and rapid population growth is exactly the setup where a basement ADU pencils out: the rough plumbing is often already stubbed in, and rental demand in a fast-growing city is real.

Under Utah’s 2021 internal accessory dwelling unit law (Utah Code § 10-9a-530, H.B. 82), an internal ADU — a basement or interior unit with its own kitchen, bathroom, and private entrance — is a permitted use in most residential zones statewide, meaning Eagle Mountain can’t require a conditional-use hearing to approve one. Eagle Mountain’s own ADU ordinance (Municipal Code Chapter 17.70) sets the local rules on top of that state floor: one ADU per lot, the property owner must live in either the main home or the ADU, two off-street parking spaces are required, and the unit can’t be rented for less than 30 consecutive days. The city’s permit application runs $230 and requires a site plan (property lines, parking, utility meters, and a 36-inch unobstructed egress path from the ADU’s exit to the street) plus a floor plan showing the kitchen sink location and the range’s power or gas hookup.

Millgate handles that entire application — site plan, floor plan, and the building permit that follows — and we’re on-site for every required inspection, so you’re not the one navigating Eagle Mountain’s ADU portal yourself.

What’s Included in ADU Basement Construction

Planning & Permitting

Site plan showing parking, egress path, and utility locations, per Eagle Mountain’s ADU application
Floor plan with kitchen and electrical/gas details, per Eagle Mountain’s ADU application
Building permit and every required inspection

Kitchen

Full-size kitchen with range/cooktop, refrigerator, and sink (Eagle Mountain requires a kitchen for ADU status)
3cm granite countertop standard; quartz or marble upgrade available
Solid-wood dovetail cabinetry, soft-close hardware

Bathroom

Full bathroom with tub/shower, vanity, and toilet (also required for ADU status)
BootzCast® tub with cultured-marble surround
Granite vanity top standard

Private Entrance

Code-compliant separate exterior entrance/egress, sized to Eagle Mountain’s 36” unobstructed path requirement

Structural, Electrical & Finish

Framing, drywall, and insulation to code
Dedicated electrical circuits for kitchen and bathroom
Flooring, trim, and paint matched to the rest of your home’s finish level

Warranty

2-year builder’s warranty on all work and materials

Our ADU Basement Construction Process

Step 1 — Free Consultation

We walk your basement, confirm it can meet Eagle Mountain’s ADU requirements (egress path, parking, one-per-lot), and discuss owner-occupancy and rental plans.

Step 2 — Design & Estimate

Our in-house design team lays out the kitchen, bathroom, and entrance, and drafts the site plan and floor plan Eagle Mountain’s ADU application requires.

Step 3 — ADU Permit Application

Millgate submits the $230 application, site plan, and floor plan to Eagle Mountain and pulls the building permit once approved.

Step 4 — Framing & Rough-Ins

Framing, plumbing rough-in (kitchen + bathroom), and electrical rough-in happen first, followed by the city’s rough-in inspection.

Step 5 — Insulation, Drywall & Finish Carpentry

Insulation, drywall, and trim go in throughout the unit.

Step 6 — Kitchen, Bathroom & Entrance Finish

Cabinetry, countertops, tub/shower, fixtures, flooring, and the private entrance are finished.

Step 7 — Final Walkthrough, Inspection & Warranty

The city signs off on final inspection, we walk the finished ADU with you, and your 2-year builder’s warranty starts.

What Does an ADU Basement Build Cost?

An ADU is effectively a full kitchen and full bathroom built into the same basement, plus a private entrance — so it carries the same plumbing- and electrical-heavy cost profile as those two rooms combined, on top of standard basement finishing. As a reference point: a recent 1,040-square-foot basement finish Millgate completed in nearby Saratoga Springs — bedrooms, a family room, and a full bathroom (not a full ADU with a kitchen and separate entrance) — came to $48,300 total. An ADU with a full kitchen added would run higher than that reference project.

What actually moves the number:

Whether your basement already has plumbing and electrical stubbed in for both a kitchen and bathroom
Whether the private entrance requires new excavation/egress work or an existing walkout/window well can be adapted
Kitchen appliance package and cabinet/countertop finish level
Bathroom vanity size and tub/shower finish level
Eagle Mountain’s $230 ADU permit application fee (separate from standard building permit fees)

We don’t quote ADU projects off a price sheet. Request a free estimate for pricing based on your actual basement and application.

Why Choose Millgate Homes

Utah’s original basement finishing company, building the basement apartments Eagle Mountain’s ADU ordinance now formally permits since 1997.
We handle Eagle Mountain’s entire ADU application — site plan, floor plan, and building permit — plus every required inspection.
One accountable general contractor managing the kitchen, bathroom, and entrance trades from estimate through final walkthrough.
2-year builder’s warranty on all work and materials.
Licensed, insured, and locally owned — BBB, NAHB, and SLHBA member.
Minimal disruption upstairs. More than 90% of our workers and materials move through the basement door or window, not your front door.

Theater Room

Bring the cinematic experience home with a dedicated basement theater designed for immersive entertainment.

Features

Built‐in soundproofing, custom seating layouts, raised‐floor platforms, surround‐sound systems, and optimized lighting.

Best For

Movie lovers, family nights, or anyone who dreams of a true big‐screen experience at home.

AREAS WE SERVE

Basement Finishing Across Utah County

We finish basements throughout northern Utah County, with a focus on American Fork, Lehi, Saratoga Springs and Eagle Mountain. Choose your city to learn how we plan, permit and build complete unfinished-to-finished basements in your area.

UTAH COUNTY

Basement Finishing in American Fork

Turn your unfinished American Fork basement into comfortable living space designed around your home and family.

UTAH COUNTY

Basement Finishing in Lehi

We finish Lehi basements with detailed plans, clearly defined bids and one accountable team from start to finish.

UTAH COUNTY

Basement Finishing in Saratoga Springs

Create the bedrooms, kitchen, family room, theater or multigenerational space your Saratoga Springs home needs.

UTAH COUNTY

Basement Finishing in Eagle Mountain

Make the most of your Eagle Mountain basement with a custom layout, permit coordination and quality construction.

Related Services

Millgate Home’s portfolio features thoughtfully designed, high-quality homes known for craftsmanship, innovative layouts, and sustainable living, catering to diverse preferences across prime locations.

Basement Apartments

The full-service overview of basement apartment/ADU builds across Utah County.

Learn More

Basement Kitchens

The full-kitchen build-out that’s one of the three required ADU features.

Learn More

Basement Bathrooms

The bathroom build-out that’s the second required ADU feature.

Learn More

Finished basement mother-in-law suite with a kitchenette and living area

Basement Finishing in Eagle Mountain

The broader basement-finishing hub for Eagle Mountain if an ADU isn’t the goal.

Learn More

Frequently Asked Questions

What qualifies as an ADU in Eagle Mountain? +

Under Eagle Mountain’s ADU ordinance (Chapter 17.70), an accessory dwelling unit needs its own kitchen, bathroom, and separate entrance, and can be built inside or attached to a single-family home, above a detached garage, or as a standalone structure. Motor homes, trailers, and similar units on wheels don’t qualify, and ADUs aren’t allowed in townhomes, duplexes, or other multi-family properties.

Do I have to live in my house if I build a basement ADU? +

Yes. Eagle Mountain requires the property owner to live in either the main home or the ADU, except during genuine temporary absences. This is a city-level rule Eagle Mountain has kept in place even though Utah’s statewide ADU law no longer mandates owner-occupancy everywhere — it varies by city, so don’t assume a neighboring city’s rules apply here.

Can I rent out my Eagle Mountain basement ADU on Airbnb? +

No. Eagle Mountain doesn’t allow an ADU to be rented for less than 30 consecutive days, which rules out short-term or nightly rentals. Long-term rental is allowed.

How much does Eagle Mountain’s ADU permit cost? +

The city’s ADU application fee is $230, on top of standard building permit costs for the construction itself. The application needs a site plan (parking, egress path, utility locations) and a floor plan showing the kitchen sink and range hookup — Millgate prepares and submits both.

Do I need two parking spaces for an ADU in Eagle Mountain? +

Yes. Eagle Mountain requires two off-street parking spaces for ADU occupants, shown on your site plan with location and dimensions.

Is a basement ADU legal in Eagle Mountain even without a hearing or special approval? +

Yes, for an internal ADU meeting the requirements — Utah’s 2021 statute makes internal ADUs a permitted use by right in most residential zones statewide, so Eagle Mountain can’t require a conditional-use hearing for one that meets the standard. You still need to go through the city’s permit application and inspections.

Are you licensed and insured? +

Yes. Millgate Homes is a licensed, insured general contractor.

Do you offer a warranty on ADU construction? +

Yes — every Millgate project, ADUs included, comes with a 2-year builder’s warranty on all work and materials.

Do you build ADUs outside Eagle Mountain? +

Yes. We also build basement apartments and ADUs throughout Saratoga Springs, Lehi, American Fork, and the rest of Utah County, though each city sets its own specific rules on top of Utah’s state ADU law.

Utah County

Ready to Build Your Eagle Mountain ADU?

Get a free, no-obligation estimate — no pressure, no per-square-foot guesswork.

Alternative path: Call 801-915-4466

Millgate Homes
P.O. Box 1662, Orem, UT 84059
801-915-4466 · support@millgatehomes.com

Free Estimates

How much will it cost to finish my basement in Utah?

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       Posted on Google  
   
   Kim Wyffels 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had a wonderful experience working with Millgate Homes. Eric is professional yet personable. Great communication, timely and competitive pricing.
  
 
      Posted on Google  
   
   Christine Tanner 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had a great experience with Eric of Millgate homes.  I love my basement. His whole team was professional, kind and did great work.  Eric pays attention to the details which is rare in the world of contracting these days.  You won't be disappointed.
  
 
      Posted on Google  
   
   Kathryn Seamons 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had Millgate finish our basement and we love it! They were amazing!!!!! Always punctual, kind & great at communicating. We wanted some custom items and Eric was so great to listen, create and execute our vision PERFECTLY. I would 100% recommend them.
  
 
      Posted on Google  
   
   Rosemary Flaherty 
 
 
 
 Trustindex verifies that the original source of the review is Google. Working with Millgate Homes has been a pleasure! The communication was ongoing and I always knew where we were in the process. The expectations and contract was clear and the subcontractors were very professional. Prices were reasonable and I received much help in making decisions and selections. And I love the final result! Very  happy with our new basement and highly recommend Millgate homes for your basement finishing project.
  
 
      Posted on Google  
   
   Loren Whitney 
 
 
 
 Trustindex verifies that the original source of the review is Google. I rarely write reviews but I think I need to in this case. This company was excellent to work with. Initially I didn't know exactly what I wanted to do with the basement, but I had ideas. When Eric came over I discussed it with him and he clarified a few things for me and I felt we ended up with a really nice design. He put me in the queue and once I was in, it was like clockwork. Everything was on time, professional, and high quality. I had plenty of help picking out colors and making decisions. After a couple of years and after working with a different contractor for a different project, I look back on the experience with a lot of appreciation. I highly recommend this company
  
 
      Posted on Google  
   
   Steven Hinckley 
 
 
 
 Trustindex verifies that the original source of the review is Google. Millgate Homes finished our basement and it was a great experience! They helped us work out a floor plan to maximize the use of space, everyone was friendly, did a great job, and they finished on time.
  
 
      Posted on Google  
   
   Karthik Kasiviswanathan 
 
 
 
 Trustindex verifies that the original source of the review is Google. When we decided to finish our basement, we received many bids from various contractors. Eric from Millgate Homes stood out because he was very professional and he gave us a very competitive and detailed bid. Eric is very knowledgeable and he guided us on different options through out the project. Eric has a wonderful team of subcontractors who are very professional and did a great job. Eric and Mitch were very responsive to all the questions we had. Also, Mitch gave us periodic updates on the cost and kept us informed. Towards the end some the subcontractors fell sick, but Eric made sure the work got completed on time. We are glad we chose to work with Millgate Homes and would highly recommend them!!
  
 
      Posted on Google  
   
   Lana Schultz 
 
 
 
 Trustindex verifies that the original source of the review is Google. We have been delighted with our remodel and have told everyone about it.
  
 
      Posted on Google  
   
   Katie Sorensen 
 
 
 
 Trustindex verifies that the original source of the review is Google. We received bids from a number of different contractors and not only did Millgate provide the most comprehensive, but it was also very competitive. Our neighbors chose another contractor and started a month before us on their basement finish and Millgate finished a month before them! We would definitely recommend them.
  
 
      Posted on Google  
   
   Kathy Wright 
 
 
 
 Trustindex verifies that the original source of the review is Google. Eric has been amazing. He's replied to emails, given me estimates that were very reasonable. Some had ranges and he explained what the range included. I've been very impressed with his professional service.

Frequently Asked Questions

Eagle Mountain is one of the fastest-growing cities in the country — does that affect basement finishing?+

It does, in a good way. Since virtually every home in Eagle Mountain was built within the last 20 years, basements here tend to be clean, dry, and standardized — often with rough-in plumbing already in place, which keeps both cost and timeline more predictable than in an older city.

How much does it cost to finish a basement in Eagle Mountain?+

Pricing depends on size and finish level, but Eagle Mountain's newer construction tends to be one of the more cost-efficient markets in Utah County to finish, since there's less unexpected prep work.

Do I need a permit in Eagle Mountain?+

Yes, Eagle Mountain City requires a permit for basement finishing, and any bedroom needs a code-compliant egress window. We manage the full process.

What are Eagle Mountain homeowners using their finished basements for?+

With so many families relocating here for tech jobs (including the Meta data center) and growing households, we see a lot of demand for home offices, extra bedrooms, and family rooms — plus rental apartments as the city's population continues to boom.

Request a Basement Finishing Estimate in Eagle Mountain

f you are ready to turn your unfinished basement into space your family can use every day, send us your information and request an estimate for basement finishing in Eagle Mountain, Utah. If you already have a floor plan, upload it with your request. We will review what you have, talk through what you want and give you a clear path forward.

Frequently Asked Questions

Do I need a permit to finish a basement in Eagle Mountain?+

Yes. Eagle Mountain's Building Department specifically identifies finishing basements as permit work. Plans are reviewed, fees are based on finished square footage and the city currently describes a typical review period of 14 business days.

Can Millgate finish a basement in a newer Eagle Mountain home?+

Yes. Newer homes are often well suited for future basement living space, but existing rough-ins do not eliminate the need for careful planning. We verify plumbing, HVAC, electrical, windows, insulation and structural conditions before defining the work.

Can I add a walkout or basement apartment?+

Potentially. Eagle Mountain requires a permit and inspection for basement walkouts, and a walkout may create an accessory dwelling unit that also needs Planning Department approval. The design should be reviewed for building, zoning, parking, egress and utility requirements before construction.

How long does Eagle Mountain's basement permit review take?+

The city's Building Department currently states that typical basement plan review takes 14 business days. Actual timing can change based on completeness, workload and revisions, so the project schedule should include reasonable permit lead time.

Can Millgate add sound control between floors?+

We can discuss ceiling-insulation and sound-control options during planning. The right approach depends on the ceiling assembly, mechanical systems, desired performance and budget.

What types of rooms can be added?+

Common options include bedrooms, a family or recreation room, bathroom, theater, game room, office, gym, kitchenette, laundry room and storage. The final layout must work with code requirements and the existing basement conditions.

Service Areas

Proudly serving customers in south Salt Lake County and Utah County areas.

ADU Basement Contractor in Eagle Mountain, Utah

30+ Years in Business

Licensed & Insured

2-Year Builder's Warranty

BBB, NAHB & SLHBA Member

5.0★ Rated on Google

5.0★ Rated on Google (25 Reviews)

ADU Basement Contractor for Eagle Mountain Homeowners

What’s Included in ADU Basement Construction

Planning & Permitting

Kitchen

Bathroom

Private Entrance

Structural, Electrical & Finish

Warranty

Our ADU Basement Construction Process

Step 1 — Free Consultation

Step 2 — Design & Estimate

Step 3 — ADU Permit Application

Step 4 — Framing & Rough-Ins

Step 5 — Insulation, Drywall & Finish Carpentry

Step 6 — Kitchen, Bathroom & Entrance Finish

Step 7 — Final Walkthrough, Inspection & Warranty

What Does an ADU Basement Build Cost?

What actually moves the number:

Why Choose Millgate Homes

Theater Room

Features

Best For

AREAS WE SERVE

Basement Finishing Across Utah County

UTAH COUNTY

Basement Finishing in American Fork

UTAH COUNTY

Basement Finishing in Lehi

UTAH COUNTY

Basement Finishing in Saratoga Springs

UTAH COUNTY

Basement Finishing in Eagle Mountain

Related Services

Basement Apartments

Basement Kitchens

Basement Bathrooms

Basement Finishing in Eagle Mountain

Frequently Asked Questions

Utah County

Ready to Build Your Eagle Mountain ADU?

Free Estimates

How much will it cost to finish my basement in Utah?

Free Estimates

Frequently Asked Questions

Request a Basement Finishing Estimate in Eagle Mountain

Frequently Asked Questions

Service Areas

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