The Great Fire of London began in 1666 and consumed over 13,000 houses and 87 churches. It started in a bakery and spread rapidly across London, ultimately destroying around 80% of the city. The fire was at its worst on September 4th and destroyed St. Paul's Cathedral. Christopher Wren was commissioned to rebuild St. Paul's Cathedral, completing it in 1708. While many proposals were made, London was reconstructed on the original street plan but with wider streets and buildings made of brick instead of timber. Over 9,000 new houses and buildings were completed by 1671. A monument to the Great Fire was also erected in the city, designed by Wren, standing at the site where the fire began.