An Alternative Use For Greenhouses...
Chickens often enjoy fresh vegetables as a treat but you could also find your greenhouse can serve a double purpose as a chicken coop like the chickens in the video below have :-)
This video shows chickens enjoying a dustbath in the middle of a cold December when the snow on the ground had prevented the chickens from bathing or foraging comfortably outside : "We give them free access to the 1250 square foot greenhouse, where the soil is warm and soft even in the winter. They love it."
If building your own greenhouse is something you have considered then you might be interested in this downloadable greenhouses plans book which contains detailed step-by-step instructions for five different greenhouses. The greenhouses plans include a Victorian style greenhouse and plans for how to build a large hoop / arch greenhouse as well as several other designs.
Victorian Style Greenhouse
Affordable PVC hoop Greenhouse