Addition construction advice/guidance needed

[zacs]

Thanks Bill. Yeah, i'm just looking to stay on the same footprint, just go up a level, including over my garage.

I already have a layout/plan in mind, it would still be same # of beds so no ISDS issues.

but if raising ceiling height on the first level is big $$ and hassle, I may not do it. I think it would need to be done along with the addition, though, because I think it would be hard to sell a higher end home in my neighborhood with low 1964 ceilings on the first floor. People looking to buy a nicer 3000+sqft house in my neighborhood want the nice high modern ceilings.