Haleakala Comfort Station

project type

New Construction, Sustainable Design

year completed


As the numbers of visitors to Haleakala National Park on Maui grew to over a million a year, the 1953 comfort station and its septic system became too small to meet demands.

MASON worked with a team of engineers to design a new comfort station that serves the needs of visitors yet conserves energy and water at the arid summit of the 10,000-foot crater. We converted the existing comfort station into the men's room and we created a new women's room/store room with lava rock walls and corrugated metal roofing to be compatible with the 1952 comfort station. The entire project was designed to have minimal effect on the nesting areas of endangered birds and the archaeological sites nearby.

Haleakala National Park

 Project Details

  • The rooms are naturally lighted and ventilated by 4-inch slots above fixed windows
  • The wastewater system, was designed to recycle 85% of the water used, to a level pure enough to flush toilets
  • Only water for drinking and hand washing needs to be trucked to the site.
  • A water tank, a 3000-s.f. leach field, a filtration and chlorination system, and new utilities were installed underground and the area naturalized after construction


AIA Honolulu

Sustainability Design Award, 2004

American Society of Engineers, Hawaii Chapter

Grand Conceptor Award, 2003


  • Building Design
  • Sustainable Design Applications and Consultation
  • Construction Documentation and Administration
Interior of women's room and security gate.

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