455 Sherman Street

Built in 1983, this project consisted of a Class A, five-story, 117,305-square-foot office building with an upgraded conference room, showers/lockers, covered parking, and onsite ownership/management.

Marx|Okubo performed an ASHRAE Level II energy audit of the property to identify and provide a savings and cost analysis of practical measures that met the owner’s constraints and economic criteria as well as discuss effects on operation and maintenance procedures. Our assessment included a review of the existing building envelope (windows, doors, roofing, insulation, wall systems, etc.) together with the mechanical, electrical, and plumbing systems as they relate to the building energy and water usage.

In performing the energy audit, Marx|Okubo recommended two capital improvement options including replacement of the obsolete air distribution system with a variable air volume system, and a shift from the pneumatic control system to electronic controls with direct digital control (DDC) logic. Marx|Okubo assisted the client in performing owner’s representation services for these capital improvement projects by creating performance drawings and specifications, providing bid process oversight with three design/build contractors, selecting the contractor, and providing design construction administration throughout the construction.

With work completed in 2021, the building shows increased efficiency, in time for the latest energy efficiency requirements through the Energize Denver ordinance.