Ann Arbor, MI
The City of Ann Arbor’s Larcom Building housed the administrative offices and police department. As a result of a facility condition analysis conducted by Peter Basso Associates, the City opted for a phased approach to renovating the existing city hall and constructing an adjacent addition rather than build an all-new facility.
PBA provided MEP engineering and lighting design services for the LEED Gold certified addition. The 112,000 square foot new justice center features efficient lighting using lower general lighting levels combined with task lighting, large windows, and generous amounts of accent lighting systems. The building interior lighting power density (W/SF) is 15 to 20% below what is allowed by current energy code. Occupancy sensors, daylight harvesting and time of day control further reduce energy use.
Mechanical features include high efficiency, packaged variable air volume rooftop equipment with evaporative condensers and fully modulating gas heat with high turn down, individually metered to monitor energy usage. The VAV air distribution, with proper air diffusion selection and system design, meets the requirements of the thermal comfort credit. Additional features include CO2 sensors, condensing type hot water boilers, and a primary only Variable flow hot water system with variable speed drives on circulation pumps. Plumbing features include low-flow sensor operated lavatories, water closets, and urinals.
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PBA provided MEP engineering design services for one of the first courthouses in the State of Michigan to use a geothermal heat pump system, Macomb County 41-B District Courthouse.Learn More →
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