Skip to main content
Modern glass office building with palm trees under a clear blue sky

Clifford L. Allenby Building

California Department of General Services

The Clifford L. Allenby Building, a new 11-story office building to serve the State of California's Health and Human Services Agency, was designed to net zero energy and carbon neutral performance, achieving LEED Platinum, Fitwel, and U.S. Resiliency Council Platinum certifications. Its energy use intensity places it in the top 1% of all U.S. office buildings, a result of closely integrated sustainability strategies that run from the building envelope's sunshades to a greywater system in the basement. Rooftop photovoltaics maximize on-site renewable generation, supplemented through a first-of-its-kind agreement with SMUD that transitions DGS' entire Sacramento portfolio to solar power. The building uses 60% less water than a comparably sized office building.

The program reflects the same ambition at a human scale. Natural daylighting drives the interior environment throughout. An employee gym, retail, and a multi-vendor food court anchor a workplace designed as a modern hybrid environment and treats employee health and wellness as inseparable from the building's broader performance goals.

Lionakis partnered with ZGF as Architect of Record and Rudolph & Sletten as General Contractor, contributing design, technical, and construction administration support to a design-build team assembled for its combined experience in high-rise design and DGS project delivery.

Key Project Partners

  • Rudolph & Sletten, Design-Build General Contractor
  • ZGF Architects, Architect of Record

Recognition

  • LEED Platinum
  • Platinum Resiliency Rating, US Resiliency Council
  • FitWel
  • Project Achievement Award over $25M, CMAA Northern California
  • National Award of Merit, Office Buildings Category, Design-Build Institute of America
  • National Special Enlighted Owner Award, Design-Build Institute of America
  • National Award of Merit, Design-Build Institute of America
  • National Best Design Award, Design-Build Institute of America
  • Award of Merit - Government/Public Building, ENR California
Modern glass office building with palm trees under a clear blue sky
Modern glass office building on a sunny city street with a cyclist and a passing light-rail train
Modern office atrium with a central staircase, wood slat screens, and people working and talking at tables
Modern open-plan office lounge with people working and talking among colorful chairs, tables, and sofas
Modern office atrium with stairs, glass-walled meeting rooms, and people working at tables below
Modern glass office building at dusk with lit windows, an orange roof, and trolley wires overhead
Bright modern cafe with people sitting at tables by large windows and a TV mounted on a slatted wood divider