2026 cost guide
What does a home addition cost in Salem?
Additions, ADUs and garage conversions start around $150,000 with a design-build team. Here is what goes into that number.
Typical ranges
| Level | What it includes | Typical investment |
|---|---|---|
| Garage conversion or ADU | Living space or a separate unit, with its own utilities when needed | $150,000 and up |
| Room addition | Family room, office, or a bedroom and bath | $150,000 and up |
| Primary suite or kitchen addition | Bedroom, bath and closet, or a larger kitchen bump-out | $150,000 and up, depending on size and finishes |
Ranges reflect C&R projects in the Salem area with design, materials and construction included. Your proposal will be specific to your home.
What moves the number
- Foundation type and site conditions
- Matching the existing roofline, siding and windows
- Plumbing and HVAC extensions
- Permits and plan review time
How to get an exact number
Book a free in-home consultation. Your consultant gives you a ballpark on the spot. If you want to go further, we prepare a detailed proposal for a $100 feasibility fee.
Is the consultation free?
Yes. A consultant visits your home, looks at the space and gives you a ballpark budget at no cost.
What does the $100 feasibility fee cover?
A detailed, budget-specific proposal for your project, built from the information we gathered at your home.
Do you offer financing?
We do not offer project financing at this time.