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About Us


Who We Are

Lifelong friends Pat O'Connor and Greg Brehm formed O'Connor Brehm Design-Build in 2001 with the goal to integrate good design with quality construction in a seamless process.  To that end, they created a design and construction team of caring and dedicated individuals that work hand-in-hand throughout the project in a smooth, efficient and stress-free way.  

Since our inception, O’Connor Brehm Design-Build has established a reputation as one of the premier architect-led design-build firms in the Chicago area. We are known for creating homes with a refined aesthetic style rooted in traditional architecture that are perfectly suited to modern lifestyles. We are committed to quality construction that incorporates current and proven building technology resulting in homes that are comfortable, durable and sustainable.

Our mission is to find creative solutions and to help you navigate the complex process of designing and building your home.  Working as an integrated team in cooperation with you, we are able to accomplish a more cohesive result through shared goals and trust.  We take pride in our proven track record of successfully meeting and exceeding our clients' design, schedule and budget goals.  

Our Team

The best results for any project are achieved when you have an integrated team.  With O'Connor Brehm Design-Build, you'll be working with a team of experienced Construction Managers, Architects, Interior Designers, Landscape Architects and Tradespeople who all work together to ensure a well-coordinated and seamless project.  

Construction Managers

Our team of construction project managers are adept at handling a wide variety of challenges while keeping the momentum of the project moving forward.  Our goal is to successfully execute the design while keeping the project on time and on budget.  We understand that the process can be challenging for our clients and we aim to make it as smooth as possible.  


O’Connor Brehm Design-Build’s in-house Architects have over 25 years of experience designing luxury homes. Our focus is to design homes that are timeless, distinctive and aligned with your unique aesthetic style and functional program. With our Architect-led design-build model, O’Connor Brehm’s design professionals are intimately involved in the process from beginning to end allowing all field decisions to be made with consideration of both aesthetic and technical impact.  The result is a more cohesive project.

Interior Designers

Our Interior Designers will help you with all finish and fixture selections for the inside of your home.  We work to help you understand and define your style and then customize selections that create a home environment that is tailored to you.  We facilitate the shopping, selection and ordering to simplify what can be an overwhelming task. Our aim is to bring all parts of the design together as a whole with a unified vision that is carried through to the last detail.

Landscape Architects

Our Landscape Architects will work with you to design an outside environment that integrates your home and site.  We listen carefully to your goals for your outdoor space and then create a design that integrates the appropriate plants and hardscape materials to enhance your home's design and your outdoor experience.    


An integral component to the success of each project is our skilled tradespeople.  While we are always on the lookout for new talent, we consistently work with a trusted pool of tradespeople that are reliable, skilled and take care in their work.  This generates a construction quality that is among the best in the business.