What ADUs Costs in Rockville — Low, High and Typical

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

Because Rockville sits in Maryland, 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
LevelPrice
Low~$1,418
Typical~$2,497
High~$4,396

Cost by type

TypeLowTypicalHigh
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.

Timing your adu

Plan adu around demand, not just around your own calendar. Whoever has capacity when you call has more reason to price competitively.

How to compare quotes for adu

Line the adu quotes up side by side and ask what changes the price after acceptance. That one question exposes most of the gap between the $1,418 low end and the $4,396 high end.

What ADUs typically costs

In Rockville, the going range for adu runs from about $1,418 to $4,396 per job, centred near $2,497. Use the low end as your best case and the high end as your safety margin.

What moves the price of adu

Scope is the biggest lever on adu pricing. Ask what is included and what is not, then compare the same job across providers. A wider scope at a lower rate can still cost more than a narrow scope at a higher one.

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. Where you are in Rockville can change the detail, so compare nearby quotes.
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. The specifics vary across Rockville, so confirm them with the provider you hire.
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. For Rockville, ask a provider to put that in writing with the quote.
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. Providers serving Rockville can tell you how it affects a typical job.

Keep comparing

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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.