Are you not looking forward to winter because the kids will be stuck in the house from 4:30 on (which is when it gets dark in the winter here in Whatcom County)?
Then maybe an addition with rec room, would help out with that crowded feeling. Or, the addition could be a master suite for you . . . new bedroom, private bath with that oversized shower you’ve been dreaming about . . .
Add on to the first floor, or turn the garage into a conditioned space; a third alternative is to go up. We have many clients who chose an addition over the garage. Another option if your home has an unfinished basement, is to turn it into a rec room.
Whatever works for you, enjoy the fall, we are having beautiful weather here in Bellingham, refreshing, and the wildfire smoke from our neighbors north of the border is gone! Win-win!