Thornheights Homes is an exclusive new pre-construction development by A1 Development, located at 16 Kirk Drive in the prestigious Thornhill neighborhood of Markham. This rare, boutique project consists of only 5 custom single detached homes, thoughtfully planned on a spacious 15,000 sq. ft. site.

Positioned at the northeast corner of Yonge Street and Kirk Drive, Thornheights offers an exceptional opportunity to own in one of the GTA’s most affluent and desirable communities. With a proposed site plan designed to enhance the charm and character of the area, this project blends timeless residential appeal with modern living.