Of late, the housing market has begun to show some signs of turning the corner. The media has begun to focus on the commercial real estate market and the growing concern that many of the toxic assets on bank balance sheets are secured by commercial buildings that continue to lose their value.In this economy, building owners and operators face many challenges. As companies cut employees and reduce operations, vacancy rates are escalating at an alarming pace. Building owners face tough economic decisions.Many commercial real estate owners have begun to seek green solutions. On one hand there is the mystique of green conversion and new construction costs. On the other hand, there are undisputed energy savings, healthy workplace incentives and environmental benefits. Striking the right balance between investing in sustainable conversions and practical, financial outlay involves imposing considerations.