The most expensive rooms in a Custom-tier renovation are the kitchen and the primary bathroom. A Custom-tier Large kitchen runs $150,000 to $250,000 and a Custom-tier primary bathroom runs $125,000 to $250,000. On The Astoria, the kitchen and primary bathroom accounted for the majority of the total project spend. Layout changes that move plumbing, gas, or electrical add significantly to labor cost on top of the room totals — projects with structural changes fall into the Complex Remodel tier ($650 to $1,000 per square foot).