Share This Listing

Message

962 characters remaining

Hmm, there seems to have been an error sending your message. Please try again.

Your email has been sent.

Still interested?

Contact the broker for more information about this property

345 Marshall Ave 10,615 SF of Office Space Available in Webster Groves, MO 63119

Save this listing!

Favourite this listing to get notified of price updates, new media and more

Sublease Highlights

  • Direct access to the scenic Deer Creek Greenway, enhancing campus walkability and outdoor appeal
  • Located within a premier office campus featuring professional landscaping and sculpture gardens
  • Architecturally prominent environment that supports a polished and professional corporate image
  • Walk-in ready workspace with furniture available, offering immediate usability for subtenants
  • Positioned minutes from Downtown St. Louis and St. Louis Lambert International Airport for strategic regional connectivity

All Available Space(1)

Display Rental Rate as

  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Condition
  • Available
  • 2nd Floor, Ste 201
  • 10,615 SF
  • Sep 2029
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now
  • Sublease space available from current tenant
  • Mostly Open Floor Plan Layout
  • Space is in Excellent Condition
  • Sublease through 9/30/2029
  • Fully Built-Out as Standard Office
  • Fits 27 - 85 People
  • Walk-in ready with furniture
  • Located in premier office campus
Space Size Term Rental Rate Space Use Condition Available
2nd Floor, Ste 201 10,615 SF Sep 2029 Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now

2nd Floor, Ste 201

Size
10,615 SF
Term
Sep 2029
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor, Ste 201

Size 10,615 SF
Term Sep 2029
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

  • Sublease space available from current tenant
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Fits 27 - 85 People
  • Space is in Excellent Condition
  • Walk-in ready with furniture
  • Sublease through 9/30/2029
  • Located in premier office campus

Property Overview

Located in the sought-after community of Webster Groves, 345 Marshall Avenue offers an exceptional suburban office setting balancing professional presence with natural surroundings. The property sits within an established, highly curated office campus distinguished by its architectural prominence, mature landscaping, sculpture gardens, and tranquil green spaces. This environment creates a welcoming setting for tenants, clients, and visitors alike, while offering a workplace experience not typically found in traditional urban office corridors. The available second-floor suite is delivered walk-in ready, complete with furniture options that allow for rapid occupancy and operational efficiency. This turnkey solution appeals to teams seeking convenience without compromising on quality or aesthetics. The campus provides immediate access to the Deer Creek Greenway, a well-loved trail system that supports wellness, walking meetings, and employee recreation throughout the workday . The property benefits from excellent regional access, positioned approximately 18 minutes from Downtown St. Louis and only 20 minutes from St. Louis Lambert International Airport, making it highly convenient for both daily commuters and business travelers . Its location within Webster Groves — a municipality known for its tree-lined streets, strong community identity, and stable economic environment — enhances the long-term value and desirability of the office campus. This opportunity presents a rare chance to secure high-quality office space in a serene yet connected St. Louis submarket, with a sublease term extending through September 30, 2029 and competitive economics offered upon inquiry .

  • Conferencing Facility
  • Property Manager on Site
  • Restaurant
  • Signage

Property Facts

Building Type
Office
Year Built
1950
Building Height
4 Stories
Building Size
39,961 SF
Building Class
B
Typical Floor Size
12,750 SF
Parking
80 Surface Parking Spaces

Select Tenants

  • Floor
  • Tenant Name
  • Industry
  • 3rd
  • Castle Contracting, LLC
  • Construction
  • 1st
  • Paul Simon Jr Impact Foundation
  • Professional, Scientific, and Technical Services
  • 1st
  • Peak TPA
  • Health Care and Social Assistance
  • 3rd
  • Re-Poly LLC
  • Public Administration
  • Listing ID: 39228519

  • Date on Market: 2026-01-27

  • Last Updated:

  • Address: 345 Marshall Ave, Webster Groves, MO 63119

Link copied
Your LoopNet account has been created!

Please Share Your Feedback

We welcome any feedback on how we can improve LoopNet to better serve your needs.
X
{{ getErrorText(feedbackForm.starRating, "rating") }}
255 character limit ({{ remainingChars() }} charactercharacters remainingover)
{{ getErrorText(feedbackForm.msg, "rating") }}
{{ getErrorText(feedbackForm.fname, "first name") }}
{{ getErrorText(feedbackForm.lname, "last name") }}
{{ getErrorText(feedbackForm.phone, "phone number") }}
{{ getErrorText(feedbackForm.phonex, "phone extension") }}
{{ getErrorText(feedbackForm.email, "email address") }}