1. Scope: refresh, remodel, or reconfigure
The biggest jump in cost usually comes when the layout changes. Keeping plumbing, gas, and walls where they are is a different project from moving a sink, removing a wall, or adding space. Say which you're planning in your brief.
2. Finish level and allowances
Cabinets, counters, tile, fixtures, and flooring vary enormously. Many quotes include allowances, placeholder amounts for items you haven't chosen. Ask which line items are allowances and what happens if you go over.
3. The trades involved
Every trade a project touches (plumbing, electrical, HVAC, framing, drywall, tile, paint) adds coordination. A general contractor or design-build firm manages that; the more trades, the more it matters.
4. The house itself
Older homes hide surprises: outdated wiring, old pipes, out-of-level floors. For homes built before 1978, paid work that disturbs paint must follow the EPA's lead-safe (RRP) rules. Many contractors recommend a contingency for older homes; ask how much and why.
5. Design, engineering, and permits
Plans, structural engineering, and permit fees are part of the cost of projects that change structure, systems, or footprint. See permits and inspections.
6. Schedule and living in the home
Phasing work so you can live there, rushing a timeline, or waiting on long-lead materials all affect price.
How we'll publish ranges
When we have enough real project quotes in an area, we'll publish ranges with the sample size, the units, and an as-of date. See how we calculate costs.