Outgrown your current home, but not ready to move? You’re not alone. Spokane homeowners are increasingly turning to custom home additions as a smart way to gain space, add value, and stay in the neighborhood they love.

Whether it’s a sunroom, a bonus room over the garage, or a full multi-room expansion, a home addition can completely transform your daily life. Here’s everything you need to know to plan a successful home addition in Spokane.

1. Common Home Addition Types in Spokane

Master suite additions
Kitchen expansions
In-law suites or guest quarters
Sunrooms and enclosed patios
Garage conversions

Additions can be built out (expanding the footprint) or up (adding a second story or finishing an attic). Your lot size, zoning regulations, and budget will help determine what’s possible.

2. Planning & Permitting in Spokane

In Spokane, most home additions require permits and must follow local zoning guidelines. These include property setbacks, height restrictions, and rules for egress and energy efficiency. Working with a contractor familiar with Spokane’s permitting process can save you weeks of delays.

3. Average Cost of a Home Addition

Costs vary based on size, finishes, and structural changes. As a general rule, Spokane homeowners can expect to spend:

$150–$250 per square foot for basic builds
$250–$400+ per square foot for high-end or complex additions

Don’t forget to budget for design fees, permits, and potential temporary living arrangements if the build is disruptive.

4. How Long Does a Home Addition Take?

On average, expect the full process to take 3 to 6 months, from planning to final inspection:

1–2 months: Design and permitting
2–4 months: Construction
1–2 weeks: Final walk-through, inspections, punch list items

Weather and availability of subcontractors can impact your timeline, so always pad your expectations by a few weeks—especially during Spokane’s snowy months.

5. Should You Move or Add On?

With Spokane’s housing inventory still tight, many homeowners are finding that a thoughtful addition beats the cost and chaos of relocating. You stay rooted in your community and avoid the costs of selling, buying, and moving.

Need Help Planning Your Addition?

Spokane Home Pros connects homeowners with trusted contractors experienced in designing and building custom home additions. Whether you're dreaming of more space or adding value for resale, we’ll help you build it right from the start.