did it undergo any constructional changes in the following years?
Yes, By the time of the American Civil War, the White House had become overcrowded.  A proposal was made to build a new residence south of the White House
White House
 A proposal was made to build a new residence south of the White House
where did the granite for the washington monument come from UNANSWERABLE why was this constructed? It is built to commemorate George Washington, once commander-in-chief of the Continental Army in the American Revolutionary War and the first President of the United States. what is term period for the elected body mentioned in the end? The United States placed a limit of two terms on its presidency by means of the 22nd Amendment to the Constitution in 1951. who holds this position currently? UNANSWERABLE where does this elected body reside? The White House in Washington, D.C. is the official residence of the president. who designed this house? Irish-born architect James Hoban can you name another construction designed by this person? UNANSWERABLE when was the aforementioned monument built? Construction took place between 1792 and 1800 using Aquia Creek sandstone painted white.
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White House [SEP] Overcrowding and building the West Wing
When Chester A. Arthur took office in 1881, he ordered renovations to the White House to take place as soon as the recently widowed Lucretia Garfield moved out. Arthur inspected the work almost nightly and made several suggestions. Louis Comfort Tiffany was asked to send selected designers to assist. Over twenty wagonloads of furniture and household items were removed from the building and sold at a public auction. All that was saved were bust portraits of John Adams and Martin Van Buren. A proposal was made to build a new residence south of the White House, but it failed to gain support.