Sir Leslie Patrick Abercrombie (June 6, 1879—March 23, 1957) was a British town planner. He trained as an architect before becoming the Professor of Civic Design at the Liverpool School of Architecture in 1915. Afterwards, he made award-winning designs for Dublin city centre and gradually asserted his dominance as an architect of international renown, which came about through the replanning of Hull, Bath, Edinburgh and Bournemouth, among others.

He is best known for the post-World War II replanning of London. He created the County of London Plan (1943) and the Greater London Regional Plan (1944) which are commonly referred to as the Abercrombie Plan. The latter document was an extended and more thorough product than the 1943 publication, and for Abercrombie it was an accumulation of nearly 50 years of experience and knowledge in the field of planning and architecture.

From the Abercrombie Plan plan came the New Towns movement which included the building of Harlow and Crawley and the largest 'out-county' estate, Harold Hill in north-east London.

Patrick Abercrombie, knighted in 1945, passed away in 1957 but not before, at the invitation of the British government, redesigning Hong Kong; while in 1956, at the invitation of Emperor Haile Selassie, he drew up plans for the capital of Ethiopia, Addis Ababa.

He is the brother of Lascelles Abercrombie.

External links

• Biography from RIBA
• On the 1943/4 Abercrombie plans
• Now We Must Rebuild: The Greater London Plan, 1944