What is the approximate cost of building a room over a garage?

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Posted by: from Windsor
9/15/2014 at 8:10:06 PM

We would like to add a room over our garage, if it is possible. I would guess approximately 10'x14'. We are just curious how much the addition would cost since we have absolutely no idea what any construction costs would be.


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Date/Time9/15/2014 at 9:37:48 PM

You should be budgeting $20,000 + without pictures its hard to say.



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Date/Time9/15/2014 at 10:10:37 PM

Without seeing the project, no one can give you a figure that means anything,.

And describe what you want up there.

Just a room for Office space.......a bed room?........Bathroom area as well?

Give me some information and I will be happy to run some figures by you.

James Fram

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Tina in Windsor
Date/Time9/17/2014 at 3:26:02 PM

Sorry I didn't post pics I will now. Possibly a bathroom if price is right. I want closets and bathroom and sitting area in this space.

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Tina in Windsor
Date/Time9/17/2014 at 3:29:16 PM

Here is the garage I would like to build on

What is the approximate cost of building a room over a garage?

What is the approximate cost of building a room over a garage?
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Date/Time9/19/2014 at 2:36:04 PM

Hi Tina,

I am assuming it is about 400 sq'. And a staircase will run from the back of the garage from a room inside the existing structure up to the new loft area. With a bathroom, and with large windows front and rear you are looking at a range from 25,700.00 to 31,000.00 depending on stair material, flooring, type of insulation and construction, electrical desires, bathroom fixtures and construction, access to the existing plumbing in the house. The list goes on. But this gives you a range.

Hope that helps,


James Fram

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