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ATAS Building, Saddleback College
Mission Viejo, CA
Exposed elements.
Informing students through building design.
Sustainability that enhances curriculum
The new Advanced Technology and Applied Science (ATAS) building at Saddleback College is a 52,100 SF facility that supports multiple modalities of learning (visual, auditory, kinesthetic, tactile) in career technical education (CTE) and more traditional disciplines. The design of the ATAS building showcases the diverse curriculum provided by the architectural drafting, computer technologies and maintenance, graphic design and communication, environmental sciences, marine biology studies, advanced manufacturing, and horticulture departments.

Exposed building systems and transparent maker and exhibition spaces invite students to encounter ideas beyond their own curriculum. Maker spaces are located for maximum accessibility and deep connections to other disciplines and the natural environment. The design team used the building design as a teaching tool to demonstrate how built and natural environments can incorporate sustainable designs. Structural and mechanical elements are exposed throughout so students can see the thickness of the concrete walls and floors and understand the importance of thermal mass and night-flushing for reduced cooling loads. Daylight harvesting brings natural light deeper into the classrooms while reducing heat gain with sunshades strategically located on the south facing windows.

Water efficiency was designed using a local water-filtration garden. Stormwater management channels with grass swale are located throughout the stepped landscape garden where California native plant species have been selected to increase the educational value and relevance of these gardens for horticultural, environmental science and other campus department curriculums.
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Results
ATAS is designed to be LEED Gold equivalent.
The solar array is designed with a capacity to achieve a 35% improvement in the proposed building performance compared with baseline.
Predicted Energy Use Intensity (PEUI) for the building is 56 kBtu/Sf/year. This is 73% reduction from the baseline used by AIA Architecture 2030 challenge.
The window-wall ratio of this building is 34.3%, keeping it under 40% to promote thermal efficiency.
The double story main lobby has a view of courtyard and stepped landscape with California native plants such as coastal sages and other low water demanding chaparrals.
Project Data
Advanced Technology and Applied Science (ATAS) Building 2017-03050-000
Saddleback College
Mission Viejo, California
PROJECT SCOPE
New Construction
HED ROLE
Design Architect
RSF/GSF
52,100
CONSTRUCTION COST
$30.0 Million
SUSTAINABILITY LEVEL
    LEED Gold Equivalent
Project Team
  • Megumi Hironaka
    AIA, LEED AP BD+C, WELL AP
    Associate Principal
    Architecture | Regional Sustainable Design Leader
  • Thomas Christian
    AIA
    Associate Principal
    Architecture Leader
  • Michael Bulander
    AIA, LEED AP BD+C
    Principal
    Architecture Leader
  • Martha Ball
    FAIA, LEED AP BD+C
    Principal
    Market Sector Leadership
  • Patricia (Patsy) Shigetomi
    AIA, IIDA, LEED AP
    Principal
    Market Sector Leadership
  • Chauncey Kingsbury
    AIA, LEED AP BD+C
    Associate Principal
    Project Management
Informing students through building design.
ATAS Building, Saddleback College
Mission Viejo, CA
PROJECT DATA
PROJECT TEAM
Exposed elements.