The fundamental key to sustainability in architecture is to create permanence in high performance buildings and avoid costly and wasteful demolition. In order to future-proof housing and provide adaptability over time, all future scenarios must be considered at the time of the initial design and construction – space planning, infrastructure, and construction are all aligned to accommodate the potential future use cases. Additionally, the economics of land value and constructability must be scrutinized and optimized if housing is to be attainable. A prefabricated component-based approach to construction results in a construction cost of $400 per square foot. Future adaptations of the system are accomplished through very simple minor renovations that allow up to 4 dwelling units on a single family lot – under the city of Vancouver’s proposed Simplified Single Family (RS) Zoning Regulations.