Massachusetts State House

The Massachusetts State House, also known as the Massachusetts Statehouse or the New State House, is the state capitol and seat of government for the Commonwealth of Massachusetts, located in the Beacon Hill neighborhood of Boston. The building houses the Massachusetts General Court (state legislature) and the offices of the Governor of Massachusetts. The building, designed by architect Charles Bulfinch, was completed in January 1798 at a cost of $133,333 (more than five times the budget), and has repeatedly been enlarged since. It is one of the oldest state capitols in current use. It is considered a masterpiece of Federal architecture and among Bulfinch's finest works, and was designated a National Historic Landmark for its architectural significance.

Today the building officially functions and is maintained under the auspices of the Superintendent of the Bureau of the State House.

The building is situated on 6.7 acres (2.7 ha) of land on top of Beacon Hill in Boston, opposite the Boston Common on Beacon Street. It was built on land once owned by John Hancock, Massachusetts's first elected governor. The Masonic cornerstone ceremony took place on July 4, 1795, with Paul Revere, then Grand Master of the Grand Lodge of Massachusetts, presiding.

Before the current State House was completed in 1798, Massachusetts's government house was the Old State House on what is now Washington Street. For the building's design, architect Charles Bulfinch made use of two existing buildings in London: William Chambers's Somerset House, and James Wyatt's Pantheon.

After Maine separated from Massachusetts and became an independent state in 1820, Charles Bulfinch designed Maine's capitol building with architectural influence of the Massachusetts Capitol building with a simplified Greek Revival influence.

The Commonwealth completed a major expansion of the original building in 1895. The architect for the annex was Bostonian Charles Brigham.

In 1917, the east and west wings, designed by architects Sturgis, Bryant, Chapman & Andrews, were completed.

In July 2016, Governor Charlie Baker proposed to the state legislature to sell 300 square feet (28 m²) of permanent easement on the west side of the State House lawn to a neighboring condominium. The land in question was once pasture owned by John Hancock and the easement would allow for the addition of au pair units. Through legislation passed by the legislature the land surrounding the state house is considered "open space".