How Do I Keep My Custom Home Build on Budget?
Nine habits that separate the builds that land on budget from the ones that don't.
Builds go over budget for predictable reasons, which means they can be prevented for predictable reasons. Almost none of them are surprises about lumber prices.
1. Set allowances at reality, not at optimism
Go look at the finishes you actually want before the contract is written, and set the allowances to match. This one habit prevents most overages. See allowances.
2. Get the lot understood before you finalize the plan
Site work is the least predictable part of a budget and the easiest to underestimate. Evaluate early. See evaluating a lot.
3. Simplify the shape before you simplify the finishes
Rooflines, corners, bump-outs and ceiling changes cost real money and are invisible on a spec sheet. A simpler footprint with better finishes usually looks and lives better than the reverse at the same price.
4. Freeze selections before you break ground
Every decision made after this point costs more than the same decision made before it. See selection deadlines.
5. Carry a real contingency
Ten to fifteen percent, and treat it as untouchable until there's an actual reason. See contingency.
6. Budget the whole project, not just the house
Lot, site work, soft costs, landscaping, window treatments, moving. See what's not in the quote.
7. Spend where it can't be redone
Structure, layout, window placement, insulation, rough-ins. Cosmetic finishes can be upgraded later; a wall in the wrong place cannot.
8. Rough in the future now
A future bath, a basement bar, an EV charger, a generator hookup. Pennies during framing, thousands afterward.
9. Keep a running total
Track allowance overages and change orders as they happen rather than at the end. Eight small yeses add up to one large surprise. See change orders.