Governor John Langdon House

The Governor John Langdon House, also known as Governor John Langdon Mansion, is a historic mansion house at 143 Pleasant Street in Portsmouth, New Hampshire, United States. It was built in 1784 by John Langdon , a merchant, shipbuilder, American Revolutionary War general, signer of the United States Constitution, and three-term President of New Hampshire. The house he built for his family showed his status as Portsmouth's leading citizen and received praise from George Washington, who visited there in 1789. Its reception rooms are ornamented by elaborate wood carving in the rococo style. The house was declared a National Historic Landmark in 1974, and is now a house museum operated by Historic New England.
The house Langdon had built resembles typical late Georgian houses, with five bays across, a center entry, and four rooms on each floor, flanking a grand central hall and stairway. It is built on a larger and grander scale than most houses, and has very high quality interior woodwoork. The interior joinery is attributed to Ebenezer Clifford, a leading woodworker of the Portsmouth area. The main entry is also particularly elaborate with a large door flanked by pairs of engaged columns, and sheltered by a semi-circular portico supported by Corinthian columns and topped by a balustrade.

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