There are several factors to take into account when choosing a location for the greenhouse. Ideally, the greenhouse is south facing in the sunniest spot in your yard. This will provide you with the most sun during the winter months. However, too much sun and heat can hurt your plants, and you may need to invest in sun shades.
Terrain is also a factor. Ideally, the greenhouse will sit on flat land. The foundation may need to be stepped if building on a hill. Your town’s bylaws should also be factored in when choosing the right location.