The new Denver ordinance that requires buildings more than 25,000 square feet to dedicate a percentage of their roof to green, vegetative space, has many property managers concerned about the impact the ordinance may have on the cost of running their buildings. In particular, the increased water costs associated with keeping a green roof viable, as well as the necessary structural modifications required for existing buildings, are major concerns. The costs could also fall on the tenant, pushing up rents.
However, this version of the ordinance is unlikely to be final. The City of Denver formed a Green Roofs Review Task Force that will develop modifications, clarifications and improvements to the bill. Any changes to the initiative would require a super-majority of 10 city council votes that will be finalized later this year.
