The restoration of Big Ben and a Japanese 'garden house' are among the stunning architecture shortlisted for a prestigious award.

Six projects are in the running for the Riba Stirling Prize, the UK's highest accolade in architecture, including Appleby in south-east London, described as a pioneering model of housing for later living, and the new home of the London College of Fashion.

Also shortlisted are Hastings House, which saw an ageing hillside home in East Sussex extended with a modern, timber-framed rear; South London's Niwa House - meaning 'garden home' in Japanese, which has an open-plan layout and is described as a 'blueprint for accessible housing'; and Pharmaceutical company AstraZeneca's new Discovery Centre in Cambridge.

The restoration of the Victorian Elizabeth Tower saw traditional materials and bespoke craftspeople used to rectify previous restoration mistakes and repair newly uncovered damage from the Second World War.

Improvements to accessibility, such as a new visitor lift, have opened up the monument to a broader audience.