What ADUs Costs in Missoula — Low, High and Typical

Last updated October 5, 2026

Expect adu in Missoula to land in the $1,418–$4,396 per job band. A typical project runs about $2,497.

Because Missoula sits in Montana, local labour supply and material delivery shape much of the price. Confirm up front whether permits and cleanup are included.

Typical cost at a glance

United States planning figures, per job
Level	Price
Low	~$1,418
Typical	~$2,497
High	~$4,396

Cost by type

Type	Low	Typical	High
Baseline transaction cost	~$1,418	~$2,907	~$4,396
Below-median price scenario	~$1,163	~$2,626	~$4,088
Above-median price scenario	~$1,588	~$3,827	~$6,066
Lender and government fees	~$170	~$679	~$1,187
Competitive or fast-moving market	~$1,730	~$4,206	~$6,682

All figures per job.

What ADUs typically costs

Plan around a $1,418–$4,396 per job band for adu in Missoula. A typical job is near $2,497, and the gap between the two ends is where scope, materials and timing do their work.

How to compare quotes for adu

Cheapest is not the same as best value for adu. A slightly higher quote with a complete scope and no open-ended extras is often safer than the lowest figure with caveats.

What moves the price of adu

The scope you agree drives most of the cost of adu. Every extra task, upgraded material or access complication adds labour and risk, and the provider prices that risk into the quote.

Budgeting for adu

Set aside the typical figure, near $2,497 per job, and treat anything closer to $1,418 as a bonus rather than a target. For adu, the middle of the range is the realistic number.

Timing your adu

Urgent adu work is priced for speed: overtime, priority materials and squeezed schedules all add cost. Planning a few weeks ahead is often the simplest way to stay near $2,497.

Getting quotes for adu

A good adu quote lists what is included, what is excluded and how long the price is held. If it does none of those, ask for a revised version.

Frequently asked questions

How much does adu cost?

Most adu falls between $1,418 and $4,396, with a typical figure near $2,497 per job. The low end is a straightforward job with no surprises; the high end covers complex scope, premium materials or urgent timing. It is worth testing that against a couple of quotes in Missoula.

What affects the price of adu?

No single factor decides it — scope, materials, access and timing all move the total, and the biggest swings usually come from access and scheduling. Local providers in Missoula can confirm how that applies to your area.

Is ADUs cheaper in smaller cities?

Often, but not always. Smaller markets can carry a travel or availability premium that offsets a lower local rate, so it is worth checking a nearby city before assuming the lowest published figure applies to you. In Missoula, that is worth confirming with a local provider before you commit.

How many quotes should I get for adu?

Two or three written quotes are enough to see the real market range. Compare the same scope side by side, and ask each provider what is excluded and what would change the price after the quote is accepted. The answer can shift with the Missoula market, so check locally.

Keep comparing

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Real Estate

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Cities in this region

These are planning ranges drawn from public price data and market research. They are not a quote, an offer or financial advice, and your actual price depends on the provider, the location and the scope of the work.