Cotswold Conservatory
The Cotswold Conservatory is a building kit i bought at Dollshouse Emporium. 
The kit consists of 50 different parts + the ones I have added - like windows sills, sink, floor panels, etc. See pictures of the building process here.

Apart from my own private miniatures, I also temporarily store all the flower pots, bowls, baskets and other planters I use for my miniature flowers.

Instead of being stored in a drawer they can play a part as decor until used - this way the 'exhibition' also change continuously.