Tysons Metro Center III Renovation

© GHT Limited 2014

GHT provided MEP engineering design services to renovate and upgrade the systems of this office building, originally built in 1980. The building was occupied by a single tenant and renovation construction began at the conclusion of that tenant’s lease. The existing tenant space was demoed and the space delivered was a warm lit shell with a new lobby served by two new air handling units (AHUs); a first floor conference center with a new AHU; and an updated deli featuring a new grease exhaust system.

The building’s mechanical system was not fundamentally altered from the original building design, allowing some equipment to be retained or retrofitted. However, design changes were made to ensure that the building’s pressurization and exhaust systems would leave the facility compliant for standard GSA Request for Lease Proposals (RLPs).

One of the building’s two chillers and all three boilers were replaced, as were two hot water pumps, two cold water pumps, and three cooling tower pumps. To improve operational efficiency, a free cooling heat exchanger and two new rooftop units (RTUs) with energy recovery for outdoor supply air were added. The design team retrofitted existing chilled water AHUs with new fan motors and variable frequency drives (VFDs). All supply ductwork and existing VAV boxes were also replaced as part of the project.

Additional upgrades to the building include a new life safety infrastructure featuring a new fire alarm control system and a new direct digital control (DDC) building management system, which replaces the building’s original pneumatic controls.

Year Completed
Services Provided
GHT Studio