Linnaean Hill (Joshua Pierce House; Pierce-Klingle Mansion)

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Linnaean Hill, built in 1823 by Joshua Pierce, was named in honor of the Swedish botanist Karl Van Linnaeus as the surrounding area was so conducive to the raising and growing of shrubs and flowers. The Pierces were extremely interested in horticulture and, shortly after establishing their home at Linnaean Hill, developed it into one of the most beautiful garden spots in the city. Joshua Pierce introduced box gardens to Washington, supplying the first ornamental plantings for the White House, the Capitol, and other government buildings and parks. Pierce also maintained the first general nursery in Washington. Linnaean Hill also became a gathering place for several major figures in Washington society, notably Daniel Webster, John C. Calhoun, and Henry Clay.

The three story, ten-room Pennsylvania Dutch farmhouse style structure was built of blue and grey granite. The stonework remains in good condition and, except for superficial touches, it remains as built.

DC Inventory: November 8, 1964 (Joint Committee on Landmarks)
National Register: October 10, 1973