Incorporating sustainability principals was the main strategy during the design process in order to reduce environmental impact of the building in the entire lifecycle as well as well-being of its users. Geothermal heat pump and rough-in for future photovoltaic panels are considered to reduce fossil fuel consumption. The open plan of the interior and location of operable windows accommodate natural cross ventilation in most of the spaces and reduce mechanical load in summer time. To promote the comfort of the residents, each room features exterior view without compromising privacy. Major south face glazing maximizes natural daylighting as well as passive solar gain. Reuse of existing structure and brick reduce the demand for raw materials in addition to adding character to the building. In this regard, the existing exterior brick claddings are refurbished and reused as interior features for the new additions with original fenestrations corresponding new spatial configuration.