Álvaro Siza steps orange-hued concrete home into sloped site in Barcelona
Park Hill Phase 2 "contains the history and stories of the people of Sheffield"
Twentieth Century Society calls for preservation of "just one set of cooling towers"
Decommissioned cooling towers turned into theme parks, music venues and extreme sports centres
Hydro showcases "revolutionary" aluminium design pieces at London Design Festival
MVRDV transforms world war two military base into housing
Metabolic Studio diverts LA River water to "facilitate natural systems that want to repair themselves"
Virginia Commonwealth University in Qatar presents four student design projects
