HMS President (1918) , formerly HMS Saxifrage, is a Flower-class anti-submarine Q-Ship completed in 1918, and is one of the last three surviving warships of the Royal Navy built during the First World War, (along with the 1914 Light cruiserHMS Caroline in Belfast, and the 1915 Monitor HMS M33 in Portsmouth dockyard).
The average single-family home built today is 2,657 square feet, more than twice the average single-family home built in 1920. To determine how homes have changed over the past century, 24/7 Wall St. estimated the size of a newly constructed single-family house between 1920 and 2014.
The average American house size has more than doubled since the 1950s, despite the fact that the average family size has steadily dropped. In the 1950s, the average house measured about 1,000 square feet (about 90 square meters) and housed three or four people. Since then, the average house size has grown to about 2,500 square feet (about 230 square meters), and the average house is home to two or three people. More about house and family sizes: