Cost calculator

Roughly what does an ADU cost to build?

Pick the type and the size for a realistic range in the Sacramento area. It is a starting point for a conversation, not a quote.

What kind of unit

Size
750 sq ft
Rough cost to build

Taking this from a range to real numbers is one free visit away.

Two identical units on two different lots can cost very different amounts, and the difference is rarely the building itself. Site conditions, distance to services and what your jurisdiction charges all move the number, and none of that is visible from a web page.

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What comes as standard

Our standard is what other builders call an upgrade

With our detailed bids you will know what you get, what you do not get, and what you can get. Additional tilework, shower finishes, lighting, outdoor space and ceiling height all make a real difference, and I will work with you until it is just right, before you sign anything.

What moves the number

The things that actually change what you pay

Distance to utilities

Sewer, water and electrical have to reach the unit. A short run is straightforward. A long trench across the property, or a panel that needs upgrading, moves the total more than any finish decision.

The 750 sq ft line

Below it, development impact fees are generally waived. Above it, they apply. It is the single largest fee you can legitimately avoid, and worth knowing before the plan is drawn rather than after.

Which jurisdiction you are in

The same unit permits differently in the city, the county and each surrounding city. Fees, review times and requirements all differ.

The condition of what you already have

On a garage conversion in particular, the existing structure decides a lot. A garage slab is normally sloped towards the door for drainage, which is fine for a car and not acceptable in a home, so the floor often has to be levelled.

Site conditions

Sloping ground, restricted access for machinery, trees, or anything that has to be removed before building starts.

Solar and fire sprinklers

Either can be required, and neither is automatic. It comes down to the size of the unit, your jurisdiction, and what the main house already has.

We have experience permitting in almost every jurisdiction in the area, so we will tell you whether yours needs them before you sign anything.

Book your consultation with me and the nine-foot ceilings are on us.

Standard ceilings are eight foot. Going to nine changes how the whole unit feels far more than the cost suggests, particularly in a smaller footprint where every other dimension is fixed.

Book the consultation through me and we include the upgrade to nine-foot ceilings at no cost on your build.

Applies to new detached builds where the plan and your local height limits allow it. I confirm that for your property at the consultation, which is free either way.

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Want the real number for your property?

Send me the address. I will tell you what your lot can take, which designs fit, what it would genuinely cost, and what is worth upgrading for what you are building it for.

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