Step 05
Realistic timeline and budget
A basic finish (framing, drywall, LVP flooring, recessed lighting, a half bath, and one open rec-room volume — sized for the older Vienna houses where scope has to work inside the ceiling height) runs $70K–$110K and finishes in six to nine weeks on-site. A full buildout (adds a full bathroom, wet bar or kitchenette, dedicated HVAC branch, home-office breakout, in-law or au pair scope, and finish tier speccd against the teardown-Craftsman comps two doors down) runs $110K–$180K and lands at three to four months. A signature buildout (home theater with acoustic isolation and tiered seating, full multi-generational suite with kitchenette, wine cellar with stone accent wall, coffered ceilings, custom millwork, or structural work like a staircase relocation) runs $180K–$300K+ and takes four to five months. Design plus permit adds three to five weeks plus two to six weeks depending on which office (Town of Vienna or Fairfax County) on the front end. Every proposal is fixed-price after the walkthrough.