We're on a busy-ish road and the road noise bugs me.
Our toilets are reeeeeeeeeeeally loud when you flush them... being pregnant it sucks when I am going to the bathroom 2 times a night and knowing the loud flush in our ensuite could wake poor DH who has to be up at 4am.
No dishwasher in a huge, modern kitchen.
The oven is too small... I can't fit my favourite cookie tray in it
No fence in the front yard... a fence would make me stress a little less about DS2 going out the front (which he isn't allowed to do)

Other than that, I love my house