Ontario construction costs 2026

Custom home under construction in Ontario showing wood framing and foundation

Custom Home Building

Custom Home Cost per Square Foot Ontario: 2026 Guide

Custom Home Building / hashir.ali.7125@gmail.com

Custom home cost per square foot in Ontario ranges from $300 to $650 for construction only in 2026, with Toronto and GTA builds reaching $750 or more at premium levels. Northern Ontario starts lower at $280 to $380.

Wood-framed custom home under construction in Ontario showing foundation and structural framing

Cost of Building a House in Ontario: Your 2026 Budget Guide

Home Building Guides, Planning & Financial Guidance / hashir.ali.7125@gmail.com

In 2026, the cost of building a house in Ontario ranges from $325 to $550 per square foot for the structure alone. GTA builds run $420 to $575 per square foot. Soft costs including permit fees, architecture fees, and development charges add another 15 to 30% on top.

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