Walnut Creek Wetland Center
Green Design Features

Sketches provided by Erin Sterling of Frank Harmon Architect PA

Street View Site Plan Perspective Floor Plan

Walnut Creek Wetland Center - Peterson Street View

Street View
Multiple Airways
Many of the window assemblies are operable. This allows them to be opened on ideal weather days so that natural ventilation can be enjoyed and the need for air conditioning is reduced.
Salvaged Wood Construction
All of the wood siding on the center comes from northeastern North Carolina in or near the Dismal Swamp. No trees used for wood siding on the project were cut down to provide the material. Instead, wood was taken from felled trees from a recent hurricane. Since the wood was harvested and milled locally, the design supports businesses within the state of North Carolina.
Sloped Roof
The high point of the roof is located on the north side of the building and slopes down to the south side. This design feature allows ambient, indirect northern light to enter the building through large, tall polycarbonate windows. Little overhang from the roof is needed because the north side of the building is always in shade.

Since the south side of the building is exposed to sunlight for most of the day, the low slope of the roof and the deep overhang protects the fully glazed windows from full sun exposure. This reduces the cooling load in the summer. The angle of the sun in winter is lower such that more sunlight is able to reach spaces along the south side of the building. This allows sunlight to enter and warm the space thus lowering the heating load. Additionally, the large windows on the south side afford beautiful views out to the wooded aspect of the site. All of this saves a great deal of energy and makes for a wonderful space to enjoy all year round.
Multiple Natural Light Sources
Every room in the building receives light from at least two sides. Some rooms receive light from three sides. Light from the south is let in through standard glass windows that are operable in several locations.

These pages show the building plans and some of the green features for the new Walnut Creek Wetland Center. Designed by Frank Harmon Architect PA, the Walnut Creek Wetland Center is the first green municipal building in Raleigh. A green building exhibits environmental stewardship through energy, water, and material conserving features. Ideally the building will improve local and downstream ecosystems. Things like natural light sources are one of the many green features in the Walnut Creek Wetland Center. Green design often includes not just a building’s design but the design of the building site as well.

Click on the tabs above to learn more about the green design of the Walnut Creek Wetland Center building and site.