Free 2026 Guide

What actually drives the price of a custom home?

Most buyers never get a straight explanation of what moves the number. This guide lays out the real factors, from square footage to the ones nobody warns you about.

  • 26 cost drivers across size, land, engineering, and selections
  • Five hidden drivers that surprise most buyers
  • Three sample scenarios showing how a parcel changes the math
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Hilson Homes

What a Custom
Home Costs

2026 Edition
14 pages · free

Twenty-six drivers. Six categories.

The guide walks each driver: what it is, why it moves the number, and what Washington adds on top. Here's how it breaks down.

01Base Home
3 drivers
02Land & Site Prep
7 drivers
03Engineering
4 drivers
04Selections
5 drivers
05Hidden Drivers
5 drivers
06Scenarios
3 examples
Cost drivers covered
26 total
Base home cost drivers page from the guideHidden cost drivers page from the guide

What's inside the 14 pages

  • 1
    Base home drivers

    How square footage, architectural complexity, and style set the foundation of any budget.

  • 2
    Land and site prep

    Slope, soils, utilities, clearing, driveway, septic, and stormwater, and what each one adds.

  • 3
    Engineering and permitting

    Structural requirements, Washington's energy code, county fees, and the studies some parcels trigger.

  • 4
    Interior and exterior selections

    Where the money goes on the things you'll actually see and touch every day.

  • 5
    Hidden drivers and sample scenarios

    Five costs most buyers miss, plus three real parcel-and-plan combinations compared side by side.

Who this guide is for

Buyers setting a budget

You need to know what's realistic before you fall in love with a plan you can't build.

Anyone comparing bids

You've got numbers from more than one builder and want to know what explains the gap.

People weighing a parcel

You want to understand what a specific piece of land will add before you commit to it.

Get the Cost Drivers Guide

Tell us where to send it and the full 14-page guide is yours, including the sample scenarios and the hidden drivers section.

We're Hilson Homes, a custom home builder in Tacoma. If you want to talk through a real budget, call or text us at (253) 441-5057.

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