|The search of cycle parking?|
Storage of bikes in tenements has long been a problem - though there are now in some common stairs helpful bits of kit which help store them efficiently. There is currently a project aiming at developing equipment and procedures to help cyclists co-exist better with limited parking space. See here for details from the Spokes website.
In addition, Edinburgh Council is soon to order some cycle storage equipment and if you are in a position to purchase some for your dwelling you may be able to obtain it more cheaply by piggy backing on the Council's bulk order. See here for more details (order deadline 17th Jan).