Architect: Weddle Gilmore Architects, Scottsdale, AZ

Parks and Recreation Toilet Systems, Parks and Rec Toilet Systems, McDowell Sonoran Preserve, Clivus Multrum Inc.

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McDowell Sonoran Preserve

Lost Dog Wash Access Area

Scottsdale, AZ

From the Mountains to the Desert

The Lost Dog Wash is one of nine access points to the McDowell Sonoran Preserve in Scottsdale, AZ. The Preserve began in and has since expanded to 16,000 acres of desert and mountain landscape – one-third of the land area of Scottsdale. Much of the land is protected in pristine condition while access points and trails have been added to allow everyone to enjoy the natural environment.

Setting the Standard

The design team worked closely with the City of Scottsdale’s Preserve Trust and public steering committee to develop “The McDowell Sonoran Preserve Access Area Design and Site Standards” which require that the highest level of environmental stewardship be employed. The design by Weddle Gilmore Architects of Tempe Arizona has won awards from the American Institute of Architects and the American Society of Landscape Architects.

Sustainable Desert Design

Nearly half a million gallons of water are saved each year by use of Clivus Multrum composting toilet systems. Four Foam-flush toilets use just six ounces of water and a drop of soap to carry waste down a conventional four-inch drain pipe. Two waterless urinals use absolutely no water to flush. The building is made of rammed earth from local materials for great insulation. Other green design elements include rainwater & greywater reuse, solar panels, porous pavement and salvaged native landscaping materials.

  • AIA Arizona Sustainable Design Award
  • Valley Forward Environmental Excellence Award
  • ASLA General Design Award of Honor
  • Four Foam-flush toilets, four commercial composters, and two waterless urinals

Park Feature Sheet