Need a professional front office with warehouse or shop space behind it? Tell me what you need. I'll send you a shortlist within 48 hours, including spaces that aren't on the big listing sites.
Flex buildings combine finished office or showroom space with a warehouse or shop area and a drive-in or dock door. They suit businesses that meet clients and store, build or ship product, without paying for two locations.
The office-to-warehouse mix. Flex spaces range from mostly office to mostly warehouse. Getting the split right keeps you from paying office rates for storage, or squeezing staff into too little office.
Parking and access. Flex tenants often have more employees and visitors than a typical industrial tenant, so parking ratios, signage and easy highway access matter as much as the door count.
Flex buildings are spread across the metro, with clusters near the airport and I-270 in North County, along Route 370 and I-70 in St. Charles County, and along the I-44 and Highway 141 corridors.
Rates vary more than warehouse rents. More office finish usually means higher rent, and pricing differs widely by building. I'll show you the all-in monthly cost for each option side by side.
Flex is the right fit for businesses that need to look professional and get work done in the same place.
An office for staff and customers with a shop and storage for equipment in back.
Display products up front and keep inventory behind the wall.
Office, packing and shipping space with a door for daily pickups.
Clean office space plus room to build, test or assemble.
Move out of an office plus a storage unit into one space.
If owning makes more sense, see buildings for sale.
Fill out the form or call. Size, office mix, timing, must-haves. Takes a minute.
Listed spaces plus off-market and coming-soon options, with rents and specs side by side.
I schedule tours, negotiate your terms and stay with you through move-in.
Flex space is a building or unit that combines finished office or showroom space with warehouse or shop space, usually with a drive-in or dock door. The mix varies widely from one building to the next.
It depends on the amount of office finish, location and building age, so flex rents vary more from building to building. For reference, CBRE reported a metro-wide average industrial asking rent of $5.60 per square foot in Q3 2026. Request a shortlist and I'll send current rates for spaces that fit.
Often, yes. Landlords may offer an improvement allowance or build out the space as part of the lease. I'll negotiate what's included before you sign.
No. Flex space includes a work or storage area and is usually zoned for light industrial use, so you can store, build or ship product, which most office buildings don't allow.
In most St. Louis commercial leases the landlord pays the tenant's broker, so my search and representation are typically at no cost to you. I confirm compensation in writing before we tour.
I'm Brian Travers, Managing Principal of Optimus, part of KW Commercial. I've spent more than 30 years building, acquiring and running companies and investing in commercial real estate in St. Louis, so I look at a building the way an owner and operator does: loading, power, access, operating costs and room to grow, not just the price.
Small and midsize flex searches get my personal attention, start to finish.
Free shortlist in 48 hours. No obligation. Market figures: CBRE, St. Louis Industrial Figures Q3 2026.