The area where Gregor's family lives

I've read through Kafka's Metamorphosis and highlighted certain things to do with Gregors room in one colour. the living room in another, various props that could be used to dress the set and hints to the area he lives in which i've managed to sumarise as there are only a few.

Where they live:

• In an appartment
• On an urban street call Charlotte Street
• It's a city
• it rains in the spring time
• Theres a hospital of some sort accross the street
• There is a place called The Conservatory somewhere in the city which sounds like it could be a school of some sort the way it's mentioned
  
• its a rather grey area
• there is a tower clock in the vascinity
• there are trains and electric trams available