A patron came in and asked this on a semi-sunny day in late winter. He went on to say that he needed to get some work done and wanted a sunny place to sit. Happily, our library has huge windows on our third floor--even though the west-facing patio was closed for the season, there is a lot of natural light up there and I suggested he check out the bench seating up there.
I think of these as "space advisory" questions. It's almost like readers' advisory but for the actual library building. People come in looking for a particular book or kind of book, and also a particular kind of environment -- one that will help them get work done or relax. It speaks to the varied needs of library visitors -- people need quiet, they need a place to chat or make a phone call or do a job interview online. They need a sunny spot in February to feel warm and productive.