An ADU is a small build with full-size decisions—site, utilities, comfort, and long-term use all matter. Good ADU layouts win on function—compact kitchens that still work, smart storage, and a bathroom that doesn’t feel like an afterthought. Small upgrades like better insulation, air sealing, and right-sized HVAC can deliver comfort you notice every day, not just on paper. On the build side, prioritize moisture control, insulation, ventilation, and sound separation. Those details determine whether the space feels quiet and comfortable year-round. For a clear overview and a sensible starting checklist, see:
adu permit process. When in doubt, simplify—fewer custom details often means faster progress and cleaner results. If you’re collecting bids, ask for a written scope with exclusions listed—this prevents misunderstandings later. When in doubt, simplify—fewer custom details often means faster progress and cleaner results. A realistic schedule includes ordering lead times and inspection windows, not just a hopeful start date. If you’re collecting bids, ask for a written scope with exclusions listed—this prevents misunderstandings later. If you’re collecting bids, ask for a written scope with exclusions listed—this prevents misunderstandings later. Good plans reduce rework; rework is where budgets quietly leak.