Woolwich Market
Beresford Square is a pedestrianised town and market square in Woolwich in the Royal Borough of Greenwich in London, England. It was formed in the early 19th century and was named after the Anglo-Irish general William Beresford, Master-General of the Ordnance and Governor of the Royal Military Academy in Woolwich. Its lively street market and lined with shops, pubs and restaurants, Beresford Square has been the heart of Woolwich for over two centuries. Since 2019 the square is part of a conservation area.

Beresford Square is a pedestrianised town and market square in Woolwich in the Royal Borough of Greenwich in London, England. It was formed in the early 19th century and was named after the Anglo-Irish general William Beresford, Master-General of the Ordnance and Governor of the Royal Military Academy in Woolwich. Its lively street market and lined with shops, pubs and restaurants, Beresford Square has been the heart of Woolwich for over two centuries. Since 2019 the square is part of a conservation area.
Check the official site before travelling; hours and prices can change.
More markets

Borough Market
London's defining food market — go early Saturday, eat your way around the perimeter.

Columbia Road Flower Market
Sunday-only flower market in the East End — 8 a.m. for choice, 2 p.m. for prices.

Maltby Street Market
Borough's smaller, scruffier sibling — railway arches, weekend only.
Source: wiki-list