# ADUs Prices in Great Falls: Typical Ranges and What Drives Them
_Last updated: 2026-10-05T07:43:17Z_

> Great Falls buyers typically see adus prices of $1,418 to $4,396 per job, settling near $2,497 for an average job.

## Typical cost at a glance

| Level | Price |
| --- | --- |
| Low | ~$1,418 |
| Typical | ~$2,497 |
| High | ~$4,396 |

_Currency: USD, per job._

## 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 |

## 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.

## 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.

## Timing your adu

Timing changes what you pay for adu. Demand peaks around holidays, seasonal deadlines and the start of the busy season, and prices follow. Booking in a quieter window is one of the few levers that lowers the figure without cutting scope.

## What ADUs typically costs

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

## 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. For Great Falls, ask a provider to put that in writing with the quote.

### 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. Providers serving Great Falls can tell you how it affects a typical job.

### 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. Where you are in Great Falls can change the detail, so compare nearby quotes.

### 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 specifics vary across Great Falls, so confirm them with the provider you hire.

## Keep comparing

- [Real Estate](/category/real-estate/)
- [Mobile Homes](/great-falls/mobile-home/)
- [Commercial Real Estate](/great-falls/commercial-real-estate/)
- [Rent to Own](/great-falls/rent-to-own/)
- [Foreclosures](/great-falls/foreclosures/)
- [Relocation Costs](/great-falls/relocation-costs/)
- [Home Warranties](/great-falls/home-warranty/)
- [Billings](/billings/accessory-dwelling/)
- [Bozeman](/bozeman/accessory-dwelling/)
- [Great Falls](/great-falls/accessory-dwelling/)
- [Missoula](/missoula/accessory-dwelling/)

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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.