Cost to Build
An accurate construction budget is essential to a successful home-building project. We offer the building-cost calculator below to give a very rough estimate of what your building costs might be for a given square footage. You will have to speak to local contractors to get a more accurate estimate. We have not included the cost of land or any local sales taxes in these calculations.
Factors that affect cost to build
Geography
The presence of steep slopes, forest, bedrock, or water (rivers, creeks, lakes, the ocean) all drive up the cost of construction.
Number of stories
Above 1,500 square feet, it’s cheaper to build a two-story house.
Materials
Metal roofs, elaborate siding, and large driveways all increase construction costs.
Finishes
Custom cabinetry, elaborate doors, and plumbing and lighting fixtures can all affect price.
Cost to Build Calculator
Our cost to build figures
Our prices are based on the current cost in semi-rural Washington State in late 2023/2024. These estimates are meant as a starting point to help you choose plans that meet your budget. The home cost includes the building, constructed on a flat lot, with solar panels installed and Scandinavian-modern interior finishes & fixtures. Driveways, the cost to bring utilities onto the lot, and tax are not included.
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Building Cost FAQ
How accurate is your cost-to-build calculator?
Our cost-to-build calculator is generally +/- 10 percent accurate. Consult local contractors for a more accurate estimate for your area.
What costs are included in the cost-to-build calculation?
Our calculator includes all hard costs, such as materials and labor, as well as site work. We also include the cost of a PV system an appropriately sized to meet the net-zero goal. Not included are land costs, permitting, engineering, utility connection, or design.
Where does the data for your cost-to-build estimates come from?
The data comes from our TC Legend Homes construction business. That business builds five houses a year on average in northwest Washington state. TC Legend is a lean company with streamlined processes. Your local contractor may be less efficient.
Does a net-zero home cost more to build?
Yes. A net-zero house has to include solar panels to generate energy.
Can I get the house I want for my budget?
We design specifically for your budget, your goals, and your site.
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