As a Solitary I feel free to Celebrate in my own way. I am including photos of some of my Altars for Samhain over the years. I had to work with whatever space I have available.
I have lived where I had a room or where I had a small table or the top of a dresser which is what I am working with for now due to limitations on space.
The Altar can be big, small, elaborate or simple. It is all up to you and the space you have available.