A real plan review, a door nobody flagged, and the best catch in the whole set was not a problem at all.
Framing
+1
Two groups who will never agree on pot fillers, and the dog bowl nobody saw coming.
Plumbing
Two sleeves under the driveway, one under the slab, one beside the gutter drain. All of them cheap while the trench is still open.
Concrete
A curbless shower costs nothing on pour day. It costs a jackhammer after.
Nobody puts a drain in the laundry room unless you ask. On a slab, you have to ask before the pour.
Laundry
The outlet nobody asks for, and the switch that makes it worth having.
Electrical
Every other room gets planned around how you live. This one gets a car count.
Garage
Three walls, one ceiling, and the door that undoes all of it.
Insulation
Bedroom outlets. Code makes sure one is nearby. It does not make sure you can reach it.
The number it costs now, the number it costs later, and the exact words to ask your builder.