Recurring house theme

Houses play an important part in my dreams.  There are several houses that occur over and over.  One is a ramshackle house that is by the railroad tracks.  It is on the side of a hill such that the front door is on the top of the hill and the back door which goes out of the basement is at the bottom of the hill.  The house is completely unpainted and there are cracks from the wood drying out and shrinking all over.  I sometimes walk down the stairs from the kitchen and back up again.  If I go out the front door of this house there is a cement front porch that is in good shape. 

There is another house that is several stories high.  There is a stairway that goes up to hidden rooms.  The rooms keep getting smaller until the top one which is only enough room to lay down.  This room is quite comfortable because it has lots of books to read and a great stereo system.  If I go downstairs in this house there is a kitchen which has a leaky roof.  I keep repairing it but it continues to leak.  The living room is very big and has a balcony overlooking it.  The balcony also connects to the staircase that goes up to the small room upstairs. 

There is another house with a sprinkler system in the front yard.  The yard always collapses and all that is left of the yard is all the pipes from the sprinkler system.

There is a large house with many bedrooms and bathrooms.  Some of the rooms are quite nice and some need repairs.  All the room are connected by long corridors.  There is one bedroom that has a kitchen attached.  Whenever I try to sleep in this bedroom the kitchen is full of people walking in and out.

There is a house on the water.  Their are piers with boats right below the house.

There is a house at the bottom of a very tall narrow waterfall.  The water runs right next to the house.  There is no visible way to get to this house.