Adding a room above garage

You think a bonus room over the garage is going to add $32k to your house value? This better be a million dollar house.

$3.50 per sq arpent.

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I looked into doing the same thing on my home. Add it if you really need the space for your children.

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I need more room for my kids, but it may be cost prohibitive. There are many factors, including the access point (stairs), adding dormers, etc. I haven't had a contractor come look at it, but have thought about it too.

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I decided against it after I realized I would most likely have to install a spiral staircase in my garage to gain access. Traditional stairs starting in my house would eat up too much sq footage on both the first and second levels.

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Did you ever get a quote on the cost?

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I built my house 3 years ago and have regretted not adding a room above my garage. What kind of costs would I be looking at to build say a 10x20 room? It would add around $160 sqft to the value.

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Kick out that Millennial and save the money.

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build it out as an apartment by adding a bathroom, kitchen, everything to live.

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He wants to add a 10 ft. x 20 ft. room, not an apartment.

To the OP, not enough information supplied. What is the intended use of this room?

If just a man-cave situation, I'd at least want a wet bar so plumbing is on the table. Heating and cooling will come into play with needing either gas or enough electricity to carry A/C and heat duties.

Your ceiling joists for the garage are probably no more than 2 x 6 and not substantial enough to simply add another floor, so they'd have to be sized up to accommodate the load.

What type finish are you looking at, plain painted sheetrock, simple flooring, basic type trims? You'll need access with stairs, so spiral, interior or exterior staircase are your options and each present their own challenges. If interior access, both spiral and regular staircases take away floor space in the garage. If exterior, you're exposed to the weather going up and down unless you cover them and that's more $$$$.

Need more info but basically what will take place on a project like this is the following-

Roof over garage will have to come off.
New 16" floor trusses installed at existing top plate of garage. Truss sizes depend on spanning distance of existing garage.
New flooring and walls built in along with new roof to tie into existing roof.
1 dormer allowing 15 sqft of window open space for egress along with stairs from the inside of your house. (conditioned space)
New electrical to tie in to existing panel service
Depending on your current mechanical setup, a zone system can run the new addition. If not, a separate unit will need to be installed for the addition.

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I chose not to finish the upstairs but have it roughed in for when I’m ready for my man cave.

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Have you priced this with your contractor? It will be much cheaper to finish it out now while building.