The upper-level gallery of the new wing provides space for "major nationally touring exhibitions, which we have not been able to accommodate," Carol Nelson, director of advancement for the museum, tells GlobeSt.com. The lower level expands the museum's curatorial and administrative space and also enhances art storage, preparation and handling capabilities, she says. This phase of the project will begin in March or April of 2008 and is expected to open in summer 2009.

The second phase is slated to begin in spring 2009 for a fall 2009 opening. The new all-glass event addition will cover the patio area of the Patricia D. Pfundt sculpture garden and provide space for public programs and private events. Conversion of the Ann and Herman Silverman Pavilion will include two classrooms, an orientation gallery, an enlarged museum shop, café and children's gallery.

Barbara Hillier, a principal of Philadelphia-based RMJM Hillier Architecture, has designed the plans. Hillier is from Bucks County, Nelson says, making her participation "especially appropriate and also fortunate for the museum."