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Glenstone Expansion

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katie_gerfen, Hanley Wood

Project Name

Glenstone Expansion

Year Completed



150,000 sq. feet


Emily Wei Rales (co-founder and director); Mitchell P. Rales (co-founder)


  • Landscape Architect: PWP Landscape Architecture
  • General Contractor: DPR Construction
  • Structural Engineer: Skidmore, Owings & Merrill
  • Altieri Sebor Wieber
  • Arup
  • Civil Engineer: VIKA
  • Buro Happold
  • Reginold D. Hough Associates
  • Henshell and Buccellato
  • R.A. Heintges & Associates
  • Artex Fine Art Services
  • PFP Engineering and Design,
  • Hector Columbani Associates,
  • Stuart-Lynn Co.
  • JGL Food Service Consultants
  • Piscatello Design Centre
  • Layne Consultants International
  • Construction Specifications,



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Project Description

From the Architect:
Glenstone Overview
Located on 200 acres in Potomac, Maryland, Glenstone strives to provide visitors with a seamless integration of art, architecture and landscape. Its first exhibition building, designed by the late Charles Gwathmey, opened to the public in 2006 and hosts exhibitions of artworks drawn from Glenstone’s collection of post-World War II art. The landscape is home to monumental sculptures sited amid rolling pastures and unspoiled woodlands. Admission is always free, and visits are scheduled by appointment to enable an unhurried, intimate engagement between viewers and their surroundings.

Project Description
Glenstone is now embarking upon an expansion to strengthen its commitment to the public. The centerpiece of this project will be a new exhibition building designed by Thomas Phifer and Partners. Its principal feature will be a series of discrete pavilions—in effect gallery rooms—surrounding a central water courtyard, with many of the pavilions devoted to single-artist installations. The building will significantly expand Glenstone’s gallery space and provide increased support facilities. Landscape architects Peter Walker and Partners will oversee a revised masterplan of Glenstone’s landscape. The expansion project will incorporate a new public entrance and visitor amenities to support a more comfortable and rewarding visit.
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