Abundant, personal outdoor space in dense, Urban settings is virtually non-existent. Every once in a while, there's an exception to the rule. Of course, one of the 'side benefits' of being in the business is finding clever uses of personal space when touring properties around town. Here's a fun example (from a small SFR in Ashbury Heights) of what to do with a 15' x 25' rear yard to maximize useage...like adding an outdoor "room", extending the living area in what might otherwise be considered a tight, awkward space! The house is situated on a corner lot, and abuts a large two unit building on the opposite side. The owner created a horizontal 'trellis wall' next to the building (spa tub side) to create an outdoor room feel.
OK...confession. It's my backyard! ;-)