David Johnston Architect Ltd. provides comprehensive architectural services tailored to the unique climate of Ontario. This firm prioritizes energy efficiency and sustainable design principles in every residential project. By integrating advanced building science, they ensure that homes are both comfortable and environmentally responsible. Their expertise includes designing high-performance envelopes that significantly reduce long-term heating and cooling costs. They specialize in creating functional spaces that blend modern aesthetics with low-carbon building materials. Each design process focuses on maximizing natural light and optimizing solar orientation for passive heating benefits. The studio offers custom solutions ranging from deep energy retrofits to new high-performance home constructions. Committed to the highest standards of architectural integrity, they help clients achieve resilient and healthy living environments.