Who we are.

I have built and sustained a successful business by continuously positioning myself as an expert resource and trusted adviser for my clients. When it comes to buying or selling a home, the most important choices will be theirs to make. It is my responsibility to analyze the market, educate them on the finer details of the process, and empower them to make critical decisions regarding their own personal and financial future.

Growing up in the heart of this city, I knew from the start that I wanted to bring the persistence and prestige of Chicago real estate down from the Midtown high rises and away from the neighborhood Greystones, and into the luxury residential markets of the western suburbs.

For the last 14 years I have done exactly that, establishing a reputation for consistency through my unique ability to manage my clients’ expectations and emotions, without losing the hard work and dedication that the city of Chicago was built on.

Real estate is not a simple business, and ours is not always an easy market to navigate. I have been in this industry for a long time and weathered several downturns. If there is one defining lesson I’ve learned, it is that you must maintain your ability to adapt. All the market analysis and negotiation prowess in the world mean nothing if you are not prepared to pivot, to think on your feet and create solutions around inevitable challenges.

Through my dedication to fostering a professional, collaborative culture, and a continued pledge to support local business and nonprofit organizations in my hometown and the surrounding area, I have been at the forefront of the real estate industry in the western suburbs for the last decade. I take great pride in my commitment to my clients, and my connection to my community.

I look forward to the opportunity to work with you, and show you what true concierge client service looks like.


Mark is an excellent realtor! He was professional, personable, and diligent in assisting us in our housing quest. He understood our very specific housing needs, and he let us know immediately when something that fit our needs went on the market. He made time for us anytime we wanted to see a property, needed advice, or simply had a question. We are thankful to have worked with him!

Ona Veda

Mark Koehler has an excellent knowledge of the real estate market and assisted us with the successful sale of our home above and beyond our expectations. He is professional, attentive, and a true pleasure to work with. He has a great team of people that took care of many aspects of the sale of our home, including a great interior designer who staged our house, resources for moving, as well as good referrals for lawyers. He was on point with communication during the whole process with every step. My family and I highly recommend him.

Brian Sturges
We’ve recently closed on our new house and can not say enough about Mark’s help throughout the process. We looked for several months and Mark was with us every step of the way. He was incredibly responsive to questions, last minute requests for viewings (even in the middle of a snow storm!), and never tried to push us on a property that wasn’t right. My wife and I genuinely felt he was invested in our finding the right home.He was positive. Encouraging. He never tried to rush our decision or got frustrated with our — at times — fickle wish list. When we did find the right house, Mark helped to ensure we were able to quickly get under contract and seamlessly close.

Kevin Riordan

Mark was our first ever realtor, and we couldn’t have been happier as first time home buyers. He walked us through every single step of the searching/buying process, coordinated and recommended legal and lending options, responded to questions (some likely silly) and never made us feel out of our depth. During a very tough market for buyers, Mark helped us navigate through pricing, bids, strategy and home quality: we’ve now just closed on the perfect home for our family. I can’t recommend Mark enough. He’s an elite realtor and an even better person.

Sarah Hrejsa
Mark help me and both my sisters find all of our homes. I think it’s safe to say he pretty much part of the family now. He was available whenever we needed him, extremely knowledgeable about things throughout every house we looked at. He knew to look for things and ask questions we never would have thought of. Most importantly he was completely honest with us. The good, the bad, the ugly. He told it to us straight which helped us find the perfect home. He even knew how to get the price down when in this current market I was to scared to even think to ask! Thank you for everything Mark! We love our new home!