The Rebuilding of London Act 1670 is an Act

Act of Parliament

An Act of Parliament is a statute enacted as primary legislation by a national or sub-national parliament. In the Republic of Ireland the term Act of the Oireachtas is used, and in the United States the term Act of Congress is used.In Commonwealth countries, the term is used both in a narrow...

 of the Parliament of England

Parliament of England

The Parliament of England was the legislature of the Kingdom of England. In 1066, William of Normandy introduced a feudal system, by which he sought the advice of a council of tenants-in-chief and ecclesiastics before making laws...

 (22 Cha II c. 11) with the long title

Long title

The long title is the formal title appearing at the head of a statute or other legislative instrument...

 "Act for the rebuilding of the City of London, uniting of Parishes and rebuilding of the Cathedral and Parochial Churches within the said City."
In 1666, a similar act

Rebuilding of London Act 1666

The Rebuilding of London Act 1666 is an Act of the Parliament of England with the long title "An Act for rebuilding the City of London." The Act was passed in the aftermath of the Great Fire of London and drawn up by Sir Matthew Hale. An earlier Act, the Fire of London Disputes Act 1666, had set...

 had been passed in order to rebuild the City of London

City of London

The City of London is a small area within Greater London, England. It is the historic core of London around which the modern conurbation grew and has held city status since time immemorial. The City’s boundaries have remained almost unchanged since the Middle Ages, and it is now only a tiny part of...

 following the Great Fire

Great Fire of London

The Great Fire of London was a major conflagration that swept through the central parts of the English city of London, from Sunday, 2 September to Wednesday, 5 September 1666. The fire gutted the medieval City of London inside the old Roman City Wall...

. This particular Act extended the powers to enlarge streets and also ordered the rebuilding of St Paul's Cathedral

St Paul's Cathedral

St Paul's Cathedral, London, is a Church of England cathedral and seat of the Bishop of London. Its dedication to Paul the Apostle dates back to the original church on this site, founded in AD 604. St Paul's sits at the top of Ludgate Hill, the highest point in the City of London, and is the mother...

.