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Contra Costa County, CA Office Buildings for Sale

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Deer Valley Road Office Building
Updated: Nov 24, 2025
Deer Valley Road Office Building

5201-5249 Deer Valley Rd, Antioch, CA

$5,375,000
24,638 sqft 1.08 AC lot
Opportunity to acquire the fee‑simple interest in 5249 Deer Valley Road
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5201-5249 Deer Valley Rd, Antioch, CA

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Multi-Suite Office Building
Updated: Jun 12
Multi-Suite Office Building

116 Washington Avenue, Richmond, CA 94801

$975,000
4,535 sqft 0.07 AC lot
High current (7.0%) and pro forma (8.1%) cap rates offer reliable income and growth potential.
Well‑maintained 4,535 SF office property with a history of strong tenant demand.
Located in the heart of Point Richmond's commercial hub with walkable access to retail and dining.
Comprised of five individual office suites with flexible configurations.
Historically high occupancy rates and low operational costs.
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Flexible Office & Creative Building
Flexible Office & Creative Building

2924 Clayton Rd, Concord, CA 94519

$1,499,000
2,712 sqft 0.06 AC lot

Standalone mixed-use building with multi-room layout, kitchen and laundry, plus an upstairs suite with separate entrance.

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Historic Office Building with Spiral Staircase
Historic Office Building with Spiral Staircase

2131 San Pablo Avenue, Pinole, CA 94564

$749,000
2,652 sqft 0.14 AC lot

Office conversion with stained-glass windows, reception area, and flexible rooms set inside a late-1800s landmark.

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Concord Office Property for Sale
Concord Office Property for Sale

2520 Stanwell Drive, Concord, CA 94520

$3,650,000
24,602 sqft 1.80 AC lot

24,602 SF office property in Stanwell Business Park.

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San Ramon Office Building For Sale
San Ramon Office Building For Sale

2001 Crow Canyon Rd, San Ramon, CA 94583

$8,000,000
39,371 sqft

39,371 sqft office building in San Ramon, California.

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Medical Office Buildings Near Hospitals
Medical Office Buildings Near Hospitals

Walnut Creek, CA 94598

$3,799,999
14,878 sqft

Office/medical buildings near Kaiser Permanente & John Muir Medical Offices.

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Medical Office Buildings Near Hospitals
Medical Office Buildings Near Hospitals

309-311 Lennon Lane, Walnut Creek, CA 94598

$3,799,999
14,878 sqft

Office/medical buildings near Kaiser Permanente & John Muir Medical Offices.

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Concord Office Building For Sale
Concord Office Building For Sale

2931 Salvio St, Concord, CA

$1,199,000
4,364 sqft 0.19 AC lot

Office building in Concord with upside potential and surface parking.

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Craftsman Office Building in Downtown
Craftsman Office Building in Downtown

1004 Court St, Martinez, CA 94553

$838,000
1,583 sqft 0.25 AC lot

Iconic Craftsman office building in Downtown Martinez near Courthouses.

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Updated Single Story Office Building
Updated Single Story Office Building

56 Mayhew Way, Pleasant Hill, CA

$1,450,000
2,704 sqft 0.27 AC lot

Functional, updated office building in Pleasant Hill, California.

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Fully Leased Retail/Office Building
Fully Leased Retail/Office Building

2099 Mt Diablo Blvd, Walnut Creek, CA

$7,900,000
20,198 sqft 0.74 AC lot

Two-story, 20,198 SF retail/office building in Walnut Creek, CA.

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Multi-Tenant Office Building in Pittsburg
Multi-Tenant Office Building in Pittsburg

3978 Railroad Ave, PITTSBURG, Pittsburg, CA 94565

$750,000
3,200 sqft

Multi-tenant office building with income potential in Pittsburg, California.

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Free Standing Office Building Investment
Free Standing Office Building Investment

300 H Street |, Antioch, CA 94509

$1,899,000
10 sqft

High-quality, fully leased office building with income in place.

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El Cerrito Office Building
El Cerrito Office Building

1600 Kearney St, El Cerrito, CA

$2,000,000
9,392 sqft 0.45 AC lot

Office building with development potential near BART and shopping.

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Point Richmond Historical District Building
Point Richmond Historical District Building

151-157 Park Pl, Richmond, CA

$3,075,000
15,463 sqft 0.21 AC lot

Unique investment opportunity in an amenity-rich, walkable location.

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Concord Office Building For Sale
Concord Office Building For Sale

1844 Clayton Rd, Concord, CA

$2,299,999
6,492 sqft 0.25 AC lot

6,492 SF office building available in Concord, California.

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High-Visibility Building on Major Arterial
High-Visibility Building on Major Arterial

6645 Alhambra Ave, Martinez, CA 94553

$560,000
1,420 sqft

Owner/user or investment opportunity with move-in suite and ample parking.

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Walnut Creek Office Space
Walnut Creek Office Space

1756 Lacassie Ave, Walnut Creek, CA 94596

Contact for pricing
7,875 sqft

7,875 SqFt office space available for sale.

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Light-Filled Office Building For Sale
Light-Filled Office Building For Sale

Railroad Ave, Richmond, CA 94801

$1,350,000
3,361 sqft 0.09 AC lot

Charming office building with private garden access in Richmond.

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Downtown Martinez Craftsman Office Building
Downtown Martinez Craftsman Office Building

1004 Court St, Martinez, CA 94553

$838,000
0.23 AC lot

Iconic Craftsman office building in Downtown Martinez near courthouses.

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Light-Filled Office Building For Sale
Light-Filled Office Building For Sale

54 Railroad Ave, Richmond, CA 94801

$1,350,000
0.09 AC lot

Charming office building with natural light and convenient location.

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High-Visibility Building on Major Arterial
High-Visibility Building on Major Arterial

6645 Alhambra Ave, Martinez, CA 94553

$530,000
0.18 AC lot

High-visibility building with ample parking and upgraded mechanicals.

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Lafayette Office Building For Sale
Lafayette Office Building For Sale

3687 Mount Diablo Boulevard, Lafayette, CA 94549

Contact for pricing
25,789 sqft

25,789 SF office building in Lafayette downtown core.

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Contra Costa County, CA Office Buildings Market Trends and Statistics

Explore 72 office buildings for sale in Contra Costa County, CA, showcased through 39 active listings on our real estate platform. These investment opportunities span a total of 401,006 square feet of properties for sale, with an estimated market value of $110,907,997.

Sale prices for office properties in Contra Costa County, CA start at $560,000, averaging $4,107,703, and reaching up to $30,000,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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