BUILDPLUS Group Inc. was founded in 1979 in Toronto, Canada, by Steven S. Leyzac, as a Summer Venture. The company quickly grew into a small general construction company, specializing in luxury single family detached homes. From its humble beginnings, BUILDPLUS's operations now span several countries and continents, having worked on Developments in excess of $3 billion dollars.

In operation for over four decades, BUILDPLUS Group has evolved into a privately-owned, multi-faceted, consulting firm, focused on Real Estate Development budgeting, plan coordination, contract administration, prime consultant management, construction costing, value engineering and preconstruction services.

Exclusively representing KARTELLè Corporation in each of their Development endeavors, BUILDPLUS Group specializes in large scale commercial and luxury hi-rise residential real-estate developments.