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The landscape design for Haversham Offices in Westerly, Rhode Island provides a "sustainable" landscape that compliments the barn-style architecture of the building.
Parking areas are surfaced with permeable materials to avoid the expense of subsurface structures in dealing with stormwater runoff and to provide surfaces that allow surface water to penetrate into the subsoil. Interlocking concrete pavers and gravel surfaces eliminate the use of petroleum based pavements such as asphalt.
Plant material includes deciduous and evergreen trees, shrubs and groundcovers that are suited to a coastal area and easily sustainable for this environment. Existing invasive plants were removed while existing healthy trees and shrubs were retained. With attention to maintaining mulch cover, all plantings will fare well during drought periods and are resistant to most pests and diseases. Wildflower meadow seeding was used along steep slopes and the larger expanse of lawn to reduce mowing, as well as eliminate the need for fertilizer and watering.
In keeping with LEED guidelines, all material for the site work was obtained locally to reduce transportation and energy usage. The large boulders used in the terrace retaining walls were either salvaged from the on-site demolished stone retaining walls or obtained from an adjacent site.
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