Foster's City Hall criticised in row over £145,000 window-cleaning bill

Architects should consider how the windows of building they are designing are going to get clean and how much is going to cost the property owner to maintain them.  It seems that more and more designing a glass building at odd angles is the norm.
http://www.bdonline.co.uk/news/uk/fosters-city-hall-criticised-in-row-over-%C2%A3145000-window-cleaning-bill/5008289.article

http://www.thisislondon.co.uk/standard/article-23893121-dim-view-of-bill-for-cleaning-city-hall-windows.do