Owner

County of Alameda

General Services Agency 

Architect

Fentress Architects 

General Contractor

Hensel Phelps Construction Co.

Mechanical Engineer

Frank M. Booth, Inc. 

Year Complete

2016 

Size

196,000 sq. ft.

Contract Type

Design Build

Project Overview

The project consists of a 196,000 sq. ft. complex connecting three structures. The buildings include a new five-story courthouse building containing 13 courtrooms and associated support spaces and facilities (146,000 sq. ft.); a new two-story county building (42,000 sq. ft.) provides space for the district attorney, public defender, and probation department; and a central lobby/security screening entrance area (8,000 sq. ft.) with a common elevator structure between the two main building elements.

 Mechanical Highlights

HVAC & Plumbing Systems include the following:

• Engineered Smoke Control System

• Variable speed, magnetic bearing-type water chillers

• Built-up central rooftop air delivery system

• Fan Area with individual micro-drives

• System redundancy to allow maintenance

• Evaporative cooling AC units

• Variable primary pumping systems

• High-efficiency condensing boilers and water heaters

• Radiant heating and cooling

• High-efficiency Data Center

• Penalware fixtures

• Low flow fixtures for water conservation

• Combined RWL/OF system

• Enhanced acoustical control

• Security grilles and bars

LEED Silver

 2018 DBIA National Award