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4300 Duncan Ave 9,438 - 45,560 SF of 5-Star Office Space Available in Saint Louis, MO 63110
Highlights
- Building conference and collaboration spaces
- Plentiful visitor parking
- Adjacent garage and surface parking
All Available Spaces(2)
Display Rental Rate as
- Space
- Size
- Term
- Rental Rate
- Space Use
- Condition
- Available
- Fits 24 - 76 People
- Top floor vacancy - Full floor opportunity - Excellent existing conditions - 31 private offices and an IT room - Building signage opportunity - Available 5/1/2026
- Fits 91 - 289 People
| Space | Size | Term | Rental Rate | Space Use | Condition | Available |
| 2nd Floor, Ste 204 | 9,438 SF | Negotiable | Upon Request Upon Request Upon Request Upon Request | Office | - | Now |
| 4th Floor, Ste 400 | 36,122 SF | Negotiable | Upon Request Upon Request Upon Request Upon Request | Office | - | May 01, 2026 |
2nd Floor, Ste 204
| Size |
| 9,438 SF |
| Term |
| Negotiable |
| Rental Rate |
| Upon Request Upon Request Upon Request Upon Request |
| Space Use |
| Office |
| Condition |
| - |
| Available |
| Now |
4th Floor, Ste 400
| Size |
| 36,122 SF |
| Term |
| Negotiable |
| Rental Rate |
| Upon Request Upon Request Upon Request Upon Request |
| Space Use |
| Office |
| Condition |
| - |
| Available |
| May 01, 2026 |
2nd Floor, Ste 204
| Size | 9,438 SF |
| Term | Negotiable |
| Rental Rate | Upon Request |
| Space Use | Office |
| Condition | - |
| Available | Now |
- Fits 24 - 76 People
4th Floor, Ste 400
| Size | 36,122 SF |
| Term | Negotiable |
| Rental Rate | Upon Request |
| Space Use | Office |
| Condition | - |
| Available | May 01, 2026 |
- Top floor vacancy - Full floor opportunity - Excellent existing conditions - 31 private offices and an IT room - Building signage opportunity - Available 5/1/2026
- Fits 91 - 289 People
Property Overview
Architecturally striking and built to Fortune 500 standards, 4300 Duncan is a future-forward workplace with technology and collaboration at its core. Infused with equal parts productivity and lifestyle, 4300 Duncan is situated at the center of the Cortex Innovation District; a gravitational hub for top global talent. Cortex is a vibrant, 200-acre hub of business, innovation, and technology integrated into St. Louis’ historic Central West End and Forest Park Southeast neighborhoods, surrounded by nationally-ranked universities and medical centers and abundant cultural and recreational assets. Cortex is a catalyst for innovation that brings together big-thinking problem solvers with state-of-the-art resources, facilities, and innovative programming to inspire and drive collaboration.
- Bio-Tech/ Lab Space
- Courtyard
- Metro/Subway
- Security System
- Signage
Property Facts
Sustainability
Sustainability
LEED Certification Developed by the U.S. Green Building Council (USGBC), the Leadership in Energy and Environmental Design (LEED) is a green building certification program focused on the design, construction, operation, and maintenance of green buildings, homes, and neighborhoods, which aims to help building owners and operators be environmentally responsible and use resources efficiently. LEED certification is a globally recognized symbol of sustainability achievement and leadership. To achieve LEED certification, a project earns points by adhering to prerequisites and credits that address carbon, energy, water, waste, transportation, materials, health and indoor environmental quality. Projects go through a verification and review process and are awarded points that correspond to a level of LEED certification: Platinum (80+ points) Gold (60-79 points) Silver (50-59 points) Certified (40-49 points)
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4300 Duncan Ave
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