Mark Schlag

Mark Schlag

Retail Brokerage | CCIM, CLS


Mark Schlag has been a retail and investment specialist at Thornton Oliver Keller since 1993.  Primary areas of expertise include retail landlord and tenant representation, retail investment sales and development services, including site assemblage.

Mark started his career in commercial real estate while completing his degree at Seattle University.  Upon returning to Boise, Mark was recruited by the original founding partners of Thornton Oliver Keller as a retail specialist.  A reputation for superior customer service and an ability to creatively approach the objectives of his clients has earned Mark a distinguished reputation within the local industry.  

Mark has participated in numerous projects including the development, lease up and subsequent sale of the 71,000 square foot mixed-use One Front Street building; the acquisition and redevelopment of the 118,000 square foot Cole Village Shopping Center; and has increasingly developed notable national representation accounts including Chase Bank, Bank of America, Chipotle Mexican Grill, Firestone Tire, Duluth Trading Company, SleepTrain and multiple others.


Mark maintains membership within the following organizations: International Council of Shopping Centers (ICSC) where he has attained the certification of Certified Leasing Specialist; CCIM Institute as the former President of the Idaho Chapter of CCIM; and is a member of the Boise Metro Chamber of Commerce (transportation committee).


Mark graduated from Seattle University in 1993 Magna Cum Laude with a Bachelor of Arts in Business Administration in Finance and Economics.


Mark resides in Boise with his family.   An avid outdoorsman, Mark’s time away from the office is spent with family and friends fly-fishing, skiing, running, backpacking and pursuing all that the Idaho outdoors have to offer.

Recent Posts

Migration Map evaluating California's trends in 2018

The Los Angeles Daily News wrote an interesting article evaluating Census Bureau migration data for 2018 as it applies to California's population trends.  The article shared stats regarding out-flo

Overland Park Center Boise Idaho

Bank of Idaho leased 2,441 square feet of retail space in the Overland Park Center, located at 6981 Overland Road in Boise.  

Shops at Franklin Meridian Idaho

Miracle-Ear leased retail space in the Shops at Franklin, located at 8 S. Franklin Road in Meridian.  

My Featured Listings

300 Orchard Street - Main Photo
300 N. Orchard Street
Boise, Idaho
Land For Sale
Available: 2.32 Acres
Price: $1,300,000.00
Northpointe Retail - Main Photo
1750 W. McMillan Road
Meridian, Idaho
Retail For Lease
Available: 1,455 SF
Rate: $25.00/SF NNN
Third & Myrtle - Main Photo
W. Myrtle Street
Boise, Idaho
Retail For Lease
Available: 2,777 SF
Rate: Contact Agent