Lufa Farms is an agricultural and technology company located in the Ahuntsic-Cartierville neighborhood of Montreal, Quebec. It is the world’s first commercial greenhouse on the roof of a building. Lufa Farms specializes in new agricultural technologies in urban zones. Covering an area of 31,000 square feet, Lufa Farms produces vegetables year-round for more than 3,000 people in the greater Montreal area. The farms produce forty varieties of vegetables grown without synthetic pesticides, capturing rainwater, and recirculating irrigation water.