SL 08-132

HPA number
HPA 08-464

2101 Constitution Avenue, NW
United States

National Academy of Sciences
Exterior restoration and repair; new accessible entrance; infill facade; modifications to side drive and parking lot; and other building modifications
Review Type


No objection to the concept design for exterior restoration, repair, and replacement in kind of masonry, roof, and windows; new accessible entrance and ramps at south terrace; modifications to side drive and parking lot with new rain canopies; infill of two interior courtyards and one courtyard visible on north elevation; new infill facade and terrace at north elevation; new roof-top corridor; and new roof-top photovoltaic system, as shown in materials received and dated 9 September 2008. Encourage further consultation with Commission staff as design develops, particularly at north infill fa\'e7ade and east rain canopies. Refer to the Historic Preservation Review Board.