The Security Building is a prominent, historic 11-story office building located in the Central Business District of Downtown St. Louis, offering a full range of amenities designed to support office tenants of varying sizes.
Building amenities include an on-site doorman and property management, providing a professional first impression and responsive day-to-day building oversight. An adjacent parking garage serves both employees and visitors, addressing a key convenience for downtown office tenants. A complimentary building conference room gives tenants access to meeting space beyond their own suite, and a common area outdoor patio offers an additional space for breaks, informal meetings, or gatherings.
Available office space spans various square footages across multiple floors, providing flexibility for tenants of different sizes to find suitable space within the same building. Several suites are extensively built out with high-end finishes, offering move-in-ready options for tenants seeking a polished space without undertaking their own buildout.
The building’s downtown location places tenants within walking distance of the St. Louis Arch grounds, Busch Stadium, and the broader mix of hotels, entertainment, and restaurants that define Downtown St. Louis. This proximity benefits tenants and their employees through convenient access to lunch options, client entertainment, and after-work activities.
The property also offers convenient access to Interstates 64, 44, 70, and 55, supporting efficient commutes for employees and visitors arriving from across the greater St. Louis region.
The combination of historic character, full-service building amenities, move-in-ready high-end suites, and a central downtown location with strong highway access makes The Security Building a strong option for office tenants seeking a well-located, amenity-rich building in the heart of Downtown St. Louis.
Commercial, Office, Retail
Property Type
165 - 11,119
Sq Ft
0.36 acres
Parcel Size




| Unit Number | Square Footage |
|---|---|
| 100 | 7,930 |
| 212 | 4,610 |
| 300 | 4,588 |
| 310 | 2,830 |
| 320 | 194 |
| 323B | 234 |
| 323C | 170 |
| 400 | 11,119 |
| 601 | 675 |
| 601 ADJ | 165 |
| 602 | 453 |
| 603 | 234 |
| 607 | 255 |
| 608 | 463 |
| 609 | 286 |
| 615 | 1,849 |
| 650 | 5,694 |
| 805 | 510 |
| 835 | 263 |
| 840 | 233 |
| 845 | 196 |
| 822 | 790 |