Office Space at 425 S Ellsworth Avenue in San Mateo

Office Building in the Heart of Downtown San Mateo

B Street South Office Space for Rent

4 Spaces Available

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Workspace

Fifth Floor

Size

5,300 ^SF

Can fit*

1 - 42 ^PPL

Price

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Workspace

Fourth Floor

Size

38,612 ^SF

Can fit*

1 - 309 ^PPL

Price

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Workspace

Second Floor

Size

50,710 ^SF

Can fit*

1 - 406 ^PPL

Price

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Workspace

Third Floor

Size

50,377 ^SF

Can fit*

1 - 403 ^PPL

Price

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*OfficeSpace.com is suggesting this space is suitable for the listed amount of people, based on a calculation of 1 person = 125 SF.

Property Details

Property Type

Office

Property Size

140,000 sqft

Last Updated

2/19/2026

B Street South location

City

San Mateo

Neighborhood

San Mateo

Zip Code

94401

Market

South Bay