Basement Finishing in Herriman, Utah
PANDEN Construction finishes basements throughout Herriman, from established neighborhoods to the fast-growing southwest valley. We finish basements into rental apartments, extra bedrooms, home theaters, gyms and mother-in-law suites, starting with a walkthrough and an itemized bid, often within 24 to 48 hours.
Why so many Herriman basements are still unfinished
Herriman is one of the newest housing markets in Salt Lake County. According to the U.S. Census Bureau's 2020-2024 American Community Survey:
- 91% of Herriman homes were built in 2000 or later. Nationally, that figure is 25%.
- The median Herriman home was built in 2013 — the newest housing stock of any city PANDEN serves.
- Herriman households average 3.38 people, above the Utah average of 2.97.
Newer homes with growing families are exactly why the basement is usually the next place Herriman homeowners look for space. It's already there, already roofed, and almost always cheaper per square foot than building out.
Getting a basement permit in Herriman
Herriman requires a permit for any basement finish involving structural, mechanical, electrical or plumbing work. Cosmetic-only work, like paint or flooring, doesn't need one. The plan you submit needs to show:
- The entire basement, with areas not being finished (or already finished) marked off
- What each room will be used for, including bedrooms
- Every electrical outlet, light switch, and smoke/carbon monoxide detector
- Dimensions of each window, each room, and the whole area
- Window well dimensions for any bedroom, showing egress compliance
Permit fees are based on the square footage being finished, plan review takes about 7 to 10 working days, and a basement finish typically requires three inspections. We handle the application, the plans, and scheduling every inspection.
The one Herriman rule that catches people off guard
If your basement plan includes a kitchen, kitchenette, or wet bar — common in a rental suite or mother-in-law apartment — Herriman requires one of two things before it's approved: an approved Internal Accessory Dwelling Unit (I-ADU) application, or a signed Certificate of Notice acknowledging the city's I-ADU restrictions. This isn't optional paperwork; it's specifically checked before a permit for that kind of layout goes through. We flag it during the first walkthrough so it never holds up your project later.
What Herriman's newer soil means for a basement
Herriman sits on the same Lake Bonneville lakebed clay that runs through much of the southwest valley, which can shift slightly with moisture through the year. It's a normal part of building here, not a red flag — but it's part of why we check for existing cracks or settling before drywall goes up, the same way we would before finishing any Wasatch Front basement.
Test for radon before you finish
Radon is a natural radioactive gas that collects in basements. The Utah Radon Program reports that about 1 in 3 Utah homes has elevated radon — 37% of 60,000 tests came back above the EPA action level of 4 pCi/L. Test before you finish, not after — low-cost test kits are available through the state at radon.utah.gov, and mitigation piping is far easier to run while the walls are still open.
What drives the cost of a Herriman basement finish
Every basement is different, so we bid from a walkthrough, not a price per square foot. These are the things that move the number most:
- A kitchen, kitchenette or wet bar, and whether it triggers Herriman's I-ADU paperwork
- A bathroom, and whether the plumbing was roughed in when the house was built
- Egress windows: using what's there, or cutting a new opening and well
- Finish level: flooring, trim, cabinets, lighting and fixtures
- Square footage and how many rooms are walled off
Your bid is itemized, so you can see where the money goes. Financing is available if you'd rather spread the cost over time.
How it works
- Walkthrough. We look at the space, the windows, the plumbing rough-ins and the electrical panel, and talk through what you want — including whether your layout needs Herriman's I-ADU paperwork.
- Itemized bid, often within 24 to 48 hours.
- Plans and permit. We draw the plans and submit them to Herriman.
- Build and inspections. Framing, rough electrical, plumbing and mechanical, then insulation, drywall and finishes, with every required city inspection along the way.
- Final inspection and walkthrough with you.
Frequently asked questions
Do I need a permit to finish my basement in Herriman?
Yes, for any structural, mechanical, electrical or plumbing work. Cosmetic-only changes like paint or flooring don't need one.
I want a wet bar or kitchenette downstairs — does that change anything?
Yes. Herriman requires either an approved Internal ADU application or a signed Certificate of Notice before that kind of layout is permitted. We handle this as part of the process.
Can I add a bedroom in my basement?
Yes, if it has a code-compliant egress window. If your basement doesn't have one, we can add it.
How fast can I get a bid?
After the walkthrough, often within 24 to 48 hours.
Sources: U.S. Census Bureau ACS 2020-2024 5-year estimates; City of Herriman basement finish permit requirements; Utah Radon Program; 2021 International Residential Code as adopted in Utah.