About the Builder
Building better by blending design, science, and craftsmanship
McKenzie Design Build was founded by Zac McKenzie, a builder driven by the belief that the best homes combine thoughtful design, proven building science, and timeless craftsmanship.
After years in general contracting, Zac saw a gap in the industry — homes often looked beautiful but underperformed. He set out to change that. McKenzie Design Build was created to raise the standard, integrating building-science principles into every stage of construction so that each home not only looks exceptional but performs exceptionally well.
Today, every McKenzie home reflects that philosophy: performance you can feel, quality you can see.
Zac has constructed and consulted on a wide range of commercial and residential projects, always with a focus on innovation, durability, and occupant health. He leads a dedicated internal team of project managers, site supervisors, architects, and designers — all sharing his commitment to quality, integrity, and clear communication.
When he’s not on site, you’ll find Zac working on his own home, woodworking in his shop, or spending time outdoors with his wife and two kids.
Meet the Team
The People Behind the Performance
At McKenzie Design Build, every home is a team effort.
From the first performance model to the final trim detail, our specialists work together to ensure precision, beauty, and lasting quality.
Brandon Tobin - Operations Manager - Brandon oversees day-to-day operations, ensuring projects run smoothly from planning through completion. With over a decade of experience at McKenzie, he brings a deep understanding of both fieldwork and project management, allowing him to effectively coordinate teams, timelines, and trades. Brandon plays a key role in maintaining quality, consistency, and clear communication throughout the building process.
Heather Kierner - Designer - Heather brings over 15 years of experience and a refined eye for creating timeless, livable interiors. She works closely with the builder and architect to bring each home’s vision to life while balancing beauty, function, and long-term value. Known for her clarity and collaborative approach, Heather helps ensure every design decision feels intentional and cohesive.
Steven Rhodes - Energy Modeler - Steven works closely with the architect and builder to ensure each home is designed to perform as intended from the very beginning. Through energy modeling, he helps guide key decisions around layout, orientation, materials, and mechanical systems—eliminating guesswork and ensuring comfort, efficiency, and durability are built in, not added later. His experience includes designing and living in a high-performance home himself, giving him firsthand insight into what truly makes a difference long term.
Matt Mutchler - Architect - Matt approaches architecture as the intersection of design and building science, creating homes that are both inspiring and highly functional. With experience across residential and mixed-use projects, he specializes in modern design and efficient construction methods that support long-term performance. Matt works closely with the builder and energy modeler to ensure each home is thoughtfully planned, well-detailed, and built to last.
Drew Welch - Lead Carpenter- Drew brings an elevated level of craftsmanship and attention to detail to every McKenzie home. With a background in high-end woodworking and custom design, he approaches carpentry as both an art and a discipline—creating built-ins, finishes, and details that feel intentional and timeless. Drew’s work goes beyond typical framing, adding character, precision, and lasting quality throughout each home.
Glenda Engel - Project Coordinator - Glenda is a central point of contact throughout the building process, helping clients feel informed, supported, and confident every step of the way. She manages communication, scheduling, and documentation with a calm, organized approach that keeps projects running smoothly. Known for her warmth and responsiveness, Glenda plays an important role in creating a positive, well-coordinated experience from start to finish.
