Here's one approach worth considering, if you just want a small layout.
Unfortunately I no longer have the track, but the issues I had with my missus
were:-
1) The space must be able to be used for other purposes as well
2) It must remain dust free
3) It must look nice
So I had a special table made, with the table top easily removable, and housed the track inside. She was able to use the work surface for her quilting, so was absolutely delighted. I also made sure it had cupboards to accommodate the cars, controllers, etc., one of which also housed the power
supply:-
(Apologies for the poor quality pre-digital photo's)
I built the track during the time when I raced open class Eurosport cars, so didn't care too much about scenery. I'm presently converting our dining room table to do the same thing but using Scalextric track and with scenery. The reason it hasn't been finished yet is because I'm waitng for Scalextric to release their digital system.....
Kind regards
Russell