After moving full time to our weekend lake place and selling the "City House", I have the luxury of dark (rural Alabama) skies. The problem is I have an hour commute so, while viewing opportunities and quality increased, available time decreased. Add to that the purchase of a C11 and a Losmandy G11 mount and the need/desire for an observatory became clear (at least to me).
I showed my wife pictures of modest roll-off-roof observatories that I thought would tuck neatly away in the back acreage and to my surprise the idea was nixed. Not in the way one would think, but rather in a "I don't want another little shed in the yard" kind of way. We already have a shed for tools and a separate 12x24 storage building that came with the property. The move to full-time residence resulted in this one being converted into climate controlled storage.
I turns out, that to get a dedicated observatory the plan had to go big. The project got approval when the area under the roll-off gantry became useful deck space and a covered porch was added to balance the other end. The other "compromise" I needed to make was to place an outdoor fireplace adjacent to the covered porch.
The plan was sketched out on graph paper about twenty times before a final plan was developed. Thanks to all of you who have published your experience with planning and construction. I have lurked these forums for almost a year while planning and have benefited greatly from everyone's experience, wisdom and design.