Home Addition Cost in Ontario: What Drives the Price per Square Foot
Published on: 06/11/2026
Home addition cost in Ontario for 2026: per-square-foot ranges by type, why development charges don't apply, and Hamilton permit and variance fees.

Home addition cost in Ontario for 2026: per-square-foot ranges by type, why development charges don't apply, and Hamilton permit and variance fees.

The cost of renovating a house in Ontario in 2026: per square foot ranges, the 90% rule for HST relief, Hamilton permit fees and what older homes add.