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

Boise Idaho Downtown Retail Strong

Downtown Boise’s overall retail vacancy ended May at 3.7% - the lowest rate on record.

Retail shopping center Meridian Idaho

The Meridian submarket leads the way for the Treasure Valley’s retail market transactions. Net absorption is the strongest at 21,000 SF with 21 deals occurring YTD.

Cole Road Plaza Boise Idaho

Aladdin Bail Bonds renewed their lease of 8,602 square feet at Cole Road Plaza, located at 60-82 N. Cole Road in Boise. 

My Featured Listings

Lake Hazel Village Pad - Main Photo
10426 W. Shelborne Drive
Boise, Idaho
Land For Lease
Available: 0.89 Acres
Price: Contact Agent
8574 Fairview Avenue - Main Photo
8574 W. Fairview Avenue
Boise, Idaho
Land For Sale
Available: 1.73 Acres
Price: $850,000.00
Findley Avenue Land - Main Photo
3575 S. Findley Avenue
Boise, Idaho
Land For Lease
Available: 3.73 Acres
Price: Contact Agent