Sometimes innovation happens in a lab and other times it happens to survive. Founder of Guelph-based Evolve Builders, Ben Polley was losing money on nearly every project. So he started tracking every screw, nail, and hour looking for savings. Over time, that exercise in trying not to fail became a discipline. The database he built grew into a sophisticated costing and modeling system, now tied to BIM and energy modelling simulations. It allows Evolve to price designs, test material substitutions, and calculate with confidence any scope creep. Necessity is the mother of invention after all.
The system has become so powerful it’s now a selling feature in its own right.
“We are actually readying ourselves to spin it off as a separate operating entity,” said Polley, who now manages three different business divisions. It would be his fourth, with plans for a fifth.
The push to create the database originated from loss. It’s a similar spark that ignited his career, literally. He was five. He remembers smelling smoke, his mom came into his room, scooped him and his brother and they went next door to grandma’s house. The fire moved fast. The mobile home offered no time to save anything but themselves. His family escaped, but the house was gone in minutes.
“We lost everything and it was figuratively burned into my brain that your house ought not disappear on you within 25 minutes,” said Polley.
A few years later, watching a segment on Wayne Rostad’s On the Road Again TV show another switch was flipped. Rostad featured a Quebec owner and builder of a straw bale house that the show explained counterintuitively resisted fire and kept the heat in. It was one of those moments of synchronicity that would shape his life’s work. Passive House Canada did not exist yet, but the seed was planted. Homes could be built differently.
Photo: Harvest Homes/Evolve Builders Group Inc.
“I had the expectation that I would become an architect,” said Polley. “And then when I graduated from high school, I ended up doing none of those things.”
Life did not move in a straight line. He studied art history, switched to economics, and then urban planning. No entry gigs in the early 1990s downturn led to a sharp turn into tech. He rose quickly and learned discipline, systems, and how to build teams. Then a workshop at a Guelph music festival on straw bale building brought the childhood thread back to the surface.
“I was like, huh, how did I allow myself to get where I am? The life that I had started to build for myself was nothing that was intentional, it’s just what occurred,” said Polley
So he decided to pick up the phone and call the people who knew how to do the work. Chris Magwood and partners showed him the craft, then encouraged him to become their competition because they cared deeply about the work, he said. His first business Harvest Homes, now the foundation for Evolve Builders Group, started as a subcontractor focused solely on exterior wall systems. During that time, he worked as a subcontractor and consultant on a straw bale home built for Michael Quast, now CEO of Passive House Canada.
There was a kind of youthful optimism in the early years. Crews camping on site, guitars by the fire at night. It worked until people aged out. Polley loved the work but was making no money.
“When you hear about typical businesses closing in five years, I should have made the decision several times over on a financial basis, but eventually we hit that right spot where we had the right people and the market,” said Polley.
Photo: Harvest Homes/Evolve Builders Group Inc.
After watching clients struggle to coordinate trades and manage projects, Polley expanded over time to design, framing, project management, and finishing work. He hired people who knew more than he did, pulled design in house, and kept the trade capacity rather than outsourcing all the craft. Over time, Evolve evolved – literally – into a full-service, high-performance building company, employing over 30 people, and providing a range of Passive House and related services.
Although straw bale remains a small part of Evolve’s portfolio today, about five percent of projects, it remains a key part of its identity. Straw is a byproduct of cereal grain farming, locally available, and exceptionally resistant to rot and fire once plastered. It also offers one of the strongest carbon-sequestration profiles among building materials, given its minimal processing and transport footprint. Evolve’s best carbon profiles still come from straw assemblies, followed by densepack cellulose.
Besides creating a new costing database entity, Evolve is eyeing expansion in developing prefabricated wall panels. They are looking at developing both conventional high-performance and straw bale variants, to solve seasonality issues when building with straw.
At the core is Polley learning from loss, driving towards solutions. Each phase of his work builds on the last. The result is a company that is committed to making high-performance, low-carbon building not just possible, but practical.
