Over more than 35 years in the real estate business, Sojitz has put approximately 80,000 condo units onto the market. It has always been a progressive force known for coming up with the most up-to-date living ideas for their day. In recent years, Sojitz has taken the lead in "greening" condo roofs and walls. Adding greenery to buildings has a strong insulating effect that helps cut down on heating and cooling costs. Rooftop gardens absorb rain, reducing the amount of sewer runoff, and also help mitigate the "heat island" effect common in urban areas. In addition to rooftop and wall greenery, other energy-saving amenities that Sojitz adopts for its condos today include all-electric facilities, double-insulated glass for windows and insulated bathtubs.