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B Street South 200 E 4th Ave

38,612 - 139,699 SF of 5-Star Office Space Available in San Mateo, CA 94401

Highlights

  • Mass Timber CLT construction; sustainable HQ opportunity.

all available spaces(3)

Display Rental Rate as

  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Condition
  • Available
  • 2nd Floor
  • 50,710 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request
  • Office
  • Shell Space
  • 2026-06-01

Large Open Floor Plate , ±14 ft slab-to-slab height.

  • Space is in Excellent Condition
  • Natural Light
  • Can be combined with additional space(s) for up to 139,699 SF of adjacent space
  • Rare, large downtown floorplates.
  • 3rd Floor
  • 50,377 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request
  • Office
  • Shell Space
  • 2026-06-01

Large Open Floor Plate with Two Terraces Including a +/-4,200 SF Wraparound Terrace Overlooking 4th Ave and B Street ±14 ft slab-to-slab height

  • Can be combined with additional space(s) for up to 139,699 SF of adjacent space
  • Rare, large downtown floorplates.
  • Natural Light
  • 4th Floor
  • 38,612 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request
  • Office
  • -
  • 2026-06-01

Large Open Floor Plate with Outdoor Terrace Overlooking the Public Plaza ±14 ft slab-to-slab height

  • Can be combined with additional space(s) for up to 139,699 SF of adjacent space
  • Rare, large downtown floorplates.
  • Natural Light
Space Size Term Rental Rate Space Use Condition Available
2nd Floor 50,710 SF Negotiable Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request Office Shell Space 2026-06-01
3rd Floor 50,377 SF Negotiable Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request Office Shell Space 2026-06-01
4th Floor 38,612 SF Negotiable Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request Office - 2026-06-01

2nd Floor

Size
50,710 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Shell Space
Available
2026-06-01

3rd Floor

Size
50,377 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Shell Space
Available
2026-06-01

4th Floor

Size
38,612 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
-
Available
2026-06-01

2nd Floor

Size 50,710 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Shell Space
Available 2026-06-01

Large Open Floor Plate , ±14 ft slab-to-slab height.

  • Space is in Excellent Condition
  • Can be combined with additional space(s) for up to 139,699 SF of adjacent space
  • Natural Light
  • Rare, large downtown floorplates.

3rd Floor

Size 50,377 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Shell Space
Available 2026-06-01

Large Open Floor Plate with Two Terraces Including a +/-4,200 SF Wraparound Terrace Overlooking 4th Ave and B Street ±14 ft slab-to-slab height

  • Can be combined with additional space(s) for up to 139,699 SF of adjacent space
  • Natural Light
  • Rare, large downtown floorplates.

4th Floor

Size 38,612 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition -
Available 2026-06-01

Large Open Floor Plate with Outdoor Terrace Overlooking the Public Plaza ±14 ft slab-to-slab height

  • Can be combined with additional space(s) for up to 139,699 SF of adjacent space
  • Natural Light
  • Rare, large downtown floorplates.

Property Overview

Class A+ Office Buildingin the Heart of Downtown San Mateo. B Street South will utilize CLT (mass timber) construction and represents one of the most sustainable HQ opportunities on the Peninsula. Q4-22: Entitlements Q1-24: Start of Construction Q3-25: Shell Complete Q4-25: Expected Occupancy

PROPERTY FACTS

Building Type
Office
Year Built
2026
LoopNet Rating
5 Star
Building Height
5 Stories
Building Size
150,000 SF
Building Class
A
Typical Floor Size
30,000 SF
Unfinished Ceiling Height
14’
Parking
240 Covered Parking Spaces
Walk Score ®
Walker's Paradise (99)
Bike Score ®
Very Bikeable (80)
What is a Walk Score®, Transit Score® & Bike Score®?
Walk Score® measures the walkability of any address.
Transit Score® measures access to public transit.
Bike Score® measures bikeability of a location.
What is a Walk Score®
, Transit Score® & Bike Score?
Walk Score® measures the walkability
of any address. Transit Score®
measures access to public transit. Bike Score®
measures bikeability of a location.®
  • Listing ID: 25429872

  • Date on Market: 2022-04-08

  • Last Updated:

  • Address: 200 E 4th Ave, San Mateo, CA 94401

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