The pool and Pool house are situated at a tip of Cape Ann along Boston’s North Shore. The small site sits atop a cliff 50 feet above sea level and enjoys a 180° view with the coasts of New Hampshire and Maine to the North and the Atlantic horizon off neighboring Halibut Point to the East.
The pool house with its concrete wall bordering the South edge of the site, glass wall along the North side, and extensive green roof with its extended eave all help to minimize solar gain. As a result it requires no air conditioning and is kept comfortable solely through cross ventilation. The only materials are stone quarried from the site when excavating for the pool, concrete, certified sustainable hardwood, glass and stucco (the ceiling). The green roof, planted with native grasses, is sloped away from the ocean to avoid any runoff in the event of a deluge.
The pool was the first completely chemical free living pool started in the US, it avoids any possibility of oceanic contamination from typical pool chemicals. Modeled on the biology of Alpine (Oligotrophic or low nutrient) lakes usually found above the tree line, it maintains a low phosphate level through gravel filtration beds and like these lakes creates clear potable water without chemicals (zooplankton dominate phytoplankton and consume alga as well as bacteria). These natural processes were embraced as a point of departure for creating a pool with an affinity for the natural beauty of the site. The pool’s mechanics consume very little energy and it requires no external heat source, the primary energy consumer of a typical pool. Instead, it absorbs solar radiation through the dark cementitious pool liner and the warm water of the adjacent shallow filtration beds.