Mason County, WA Office buildings for sale

Updated: Dec 10, 2025

Medical Office Building with Parking

140 NE State Route 300, Belfair, WA 98528

$849,000

Medical office property built in 1995
New roof completed in 2023
On‑site parking for up to 20 vehicles
Commercial zoning
Located along State Route 300 in Belfair

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Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center

Based on your search, we've compiled 5 Potential Opportunities for your consideration. Besides 1 Active listings in Mason County, WA, we suggest exploring several alternatives: plus 4 Land Listings that present a potential for development.

Potential Development Sites for Consideration

Can't find the perfect fit? These Land listings present an alternative path: the potential to develop a property for your specific goals.

Important: These AI-suggestions are a starting point, not a guarantee of permitted use. All zoning, permitting, and land use information must be independently verified by you with the appropriate local authorities before making any commitments.

Commercial Land with C-1 Zoning

SW Bel Air Dr, Clatskanie, OR 97016

$149,000

Level C-1 lot with city utilities at the street, well suited for multiplex and mixed-use development.

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Warrenton, OR Commercial Land

Tax ID 30749, Warrenton, OR 97146

$39,000

0.23 AC lot

Commercial mixed-use land for sale in Warrenton, Oregon.

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Riverside Land in Columbia City

Columbia City, OR 97018

$649,000

0.46 AC lot

Prime 20,000 sq ft lot with Columbia River views.

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Commercial Land with Old Home

51738 SW OLD PORTLAND, Scappoose, OR 97056

$499,900

1,536 sqft

Commercial land featuring a historic home with commercial zoning.

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Mason County, WA Office Buildings Market Trends and Statistics

Explore 1 office buildings for sale in Mason County, WA on our real estate platform.

Sale prices for office properties in Mason County, WA average $849,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

Mason County, WA Office Buildings for Sale

140 NE State Route 300, Belfair, WA 98528