Basement Apartment in Taylorsville

Typical cost in Taylorsville

  • Basement apartment, about 700-800 sq ft$50,000 – $100,000+
  • Larger suite, about 1,000 sq ft or more, with its own outside entrance$75,000 – $130,000+

Taylorsville Basement Finishing plans basement apartments in Taylorsville houses, which Utah calls internal accessory dwelling units. The owner lives in the house, the unit sits inside it and the building rules treat it as a separate dwelling, so the plan covers the entry, the kitchen and bath, the separation and the escape window.

We serve Taylorsville, West Jordan and South Jordan. This page is for homeowners building a unit in their own house, not for renters looking for a listing. Taylorsville’s local conditions are confirmed with the city, because we could not read its ADU rules for this page.

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1980s split-level stucco and brick house with a two-car garage, concrete driveway, foundation window wells and scrub oak hills and mountains behind

Basement apartment or internal ADU

What the state says

In neighborhoods zoned mainly for homes, state law treats a single internal accessory unit as a permitted use. It must satisfy building, health and fire codes, and a city may not restrict how big it is compared with the house, how large the lot is, how much street frontage there is, or whether it connects to the house inside.

What a city may still require

Several levers are open to a city under the statute (Utah Code 10-21-303, renumbered from 10-9a-530 in November 2025). It may ask for a rental permit or license, bar stays shorter than 30 consecutive days, bar renting the unit when the owner lives elsewhere, bar a unit on a lot of 6,000 square feet or less, and ask for one more on-site parking space unless it already requires four. Whether Taylorsville uses any of them is for its ordinance to say, and that ordinance was not readable for this page.

Owner occupancy and rental terms

The statute lets a city prohibit renting the unit when the house is not the owner’s primary residence, and lets it prohibit rentals shorter than 30 consecutive days.

Building items the inspector looks for

Plan on four items from the state code. First, the escape opening for the unit’s sleeping rooms (see egress window installation). Second, alarms placed as in a new dwelling. Third, a separation from the main house that Utah lets you build with half-inch gypsum board on each side of the wall or under the floor, in place of the one-hour rating otherwise required between dwellings. Fourth, a possible inspection by the building official of any fire-rated work before the joints are taped.

The Utah electrical amendment lets the occupant of an accessory unit go without access to the disconnect serving the unit they live in. Entry, kitchen, bath and heating are drawn on the plan; the city decides what more it needs.

Taylorsville and internal ADUs

Taylorsville’s license, lot-size and parking conditions for an ADU are a local matter, and we do not state them here. Ask the city’s planning and building offices what they require before you spend on drawings.

About 72 percent of Taylorsville’s homes are one-unit houses and about 71 percent are owner-occupied, which is the kind of house the statute describes. It is not a count of basements.

Basement perimeter wall framing with a pressure-treated bottom plate on a concrete slab, wood studs against a poured concrete wall with rigid foam board behind them and electrical boxes set in place

Questions and answers

Can I rent a basement apartment in Taylorsville?

A city may require a rental license and may bar stays shorter than 30 consecutive days. Ask Taylorsville what applies to your lot before drawings are paid for.

Does a basement apartment need its own egress window?

A new accessory dwelling unit in an existing basement must be provided with an escape and rescue opening for its sleeping rooms, under the same section that applies to new bedrooms.

How much does a basement apartment cost?

Floor area, kitchen, bath, a separate entry, the escape window and the level of finish set the price. A figure comes after we see the basement.

Planning a unit starts with its three working parts, and each has its own page: basement bedroom for the sleeping room, basement bathroom for the fixtures and egress window installation for the opening. The Taylorsville Basement Finishing home page gives the whole-basement view, from framing to final walk-through.

Request a free basement finishing quote

Describe the basement, whether you live in the house and whether it has an outside way in. Say what the unit would hold: a bedroom, a bath, a kitchen. We'll get back to you soon with an estimate or any questions we have. Estimates are free and there's no obligation.

Call (385) 527-2591

Call (385) 527-2591