The economics are not yet universal. A Dartmouth, Nova Scotia developer publicly priced what would be Atlantic Canada’s first tall mass timber tower at 8.39% above an equivalent concrete frame, a number that sits squarely in the middle of the range mass timber projects in North America have been delivering for the past two years.
The Dartmouth comparison, reported by Daily Commercial News on May 21, runs a post-and-beam CLT-and-glulam structure against a conventional cast-in-place concrete frame at the same building height and program. The mass timber option costs more on materials and crane logistics. It saves time and shifts a significant fraction of the embodied carbon profile.
What the 8.4% delta actually contains
The cost premium is concentrated in three line items: the CLT and glulam material itself, the engineered connections, and the long-haul transport from Eastern Canada and Quebec sawmills to the Halifax-area site. North American CLT manufacturing capacity has tripled since 2022, but Atlantic Canada is still hauling panels several hundred kilometers, and that freight cost shows up in every estimate. Mosaic Timber’s California plant, scheduled for mid-2026 production startup, would not have helped a Halifax project anyway.
What partially offsets the material cost is the schedule. The developer’s analysis projects mass timber delivering the same gross square footage four to six months ahead of concrete. On a project of this scale, that’s a real number: earlier rent rolls, lower construction loan interest carry, and meaningful G&A savings on the contractor side. Run that through a 100,000-square-foot residential pro forma at current Halifax rents and the 8.4% premium compresses to something closer to 3-4%.
The pattern matches what U.S. mass timber projects have been showing. The 2025 WoodWorks cost-comparison series across 16 completed CLT buildings put the average all-in premium at 4-11% over concrete after schedule, financing, and operational savings.
What’s driving developer adoption anyway
A persistent through-line in the mass timber adoption data is that the developers actually building these structures aren’t doing it on cost. Big tech tenants want mass timber for ESG reasons, and the architect mentioned in the ArchDaily series of European case studies this month echoed the same point: developer demand is upstream of the economics.
Google, Walmart, Microsoft, and Amazon all named mass timber as a preferred structural system in 2025 corporate real estate disclosures. So did three of the largest U.S. healthcare REITs. Where mass timber is being chosen, it’s usually being chosen because a downstream tenant is signaling they’ll pay a rent premium for an embodied-carbon story.
That’s a different game than the cost-only comparison the Dartmouth study describes. It’s the game more North American mass timber projects will be playing for the next five years.
What to watch
Watch the connections. The fastest-moving part of the mass timber cost curve isn’t sawmill capacity. It’s prefabricated steel connectors that cut on-site labor hours. A 15% reduction in connection labor closes most of the remaining cost gap. Two North American suppliers have new product lines hitting the market in late 2026.
If those land, the next Dartmouth-style comparison won’t read 8.4%. It’ll read 3%.
Source: Daily Commercial News.