The analysis considered that extensive green roofs and C&D waste based extensive green roofs increase property value from $132/m2 ($12/ft2) to $174/m2 ($16/ft2). Commercially available standard intensive green roofs increase could vary between $181.5/m2 ($16.8/ft2) and $648/m2 ($60/ft2). This benefit is capitalized at the time of property sale.