Looking for advice on home addition and garage

[Shorelunch]

We're in the process of getting bids for a home addition project. We have a one level slab on grade home. We're looking at adding a 28 wide x 30' deep family room and basement off of our kitchen.

* We're thinking of a basement finished with drywall, two egress and two look out windows, drain and off peak electric. Just going with remnant carpet, no A/C.

* Family room finished with medium grade carpet, either two windows each wall or three large windows, vaulted ceiling (knock down) and drywalled, painted, with off peak electric, gas fireplace and a wall mount A/C.

* Detached garage 26 x 32 with drain, unfinished, double (one large) garage door and one entry door.

I'd greatly appreciate any ideas, feedback, lessons learned etc on any or all of the above. Thanks!

[cavalierowner]

Just a comment about the garage drain. Be aware that code will not allow you to put a conventional drain/trap; it has to be a drain without a trap. And you cannot run it into your house sewer. If it runs to a storm sewer, it has to go through a flammable waste trap first (can you say "expensive"?). Around here we can daylight the drain discharge on grade, but I understand that's up to each code official.

[BoxMN]

For garage get an 18' door over 16 or 17, and if you can, do storage trusses over it, even if you don't think you want them now. I made that mistake Not much more money, and it ends up looking the same or better.

I sloped my garage slab towards the overhead doors (28x36, with 8' high and 10' and 18' wide doors) and don't have problem even in winter. I do heat my garage though, so water drains out when I open the doors in winter. We can't have garage drains here.

Good luck, sounds like fun but big project