antiquities arc785f architecture athens(greece) buildings byzantineantiquities california californie citizenparticipation cityplanning communitydevelopment constructions docklands docks développementcommunautaireurbain etc frontsdemer general gentrification history kirchenbau lokalepolitiek londondocklandsdevelopmentcorporation losangeles participationdescitoyens rénovation socialeconflicten sociology stadsvernieuwing stadtentwicklung stadtsanierung stadtökologie structures urbanrenewal villes waterfronts