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



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
- 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
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
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345 Marshall Ave
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