The aesthetic dimension represents one of the main criteria of architectural design. As an architect, I like to know the rules you usually use and which part of your design you are focusing on. Is it the form, 2D, parts, details, or all?
The answer is the same for whether the project is architectural, sculpture, product design or whatever. The thing should be viewed from all possible positions. Then squint so that only the parts that are observed are the broad outlines of the thing. Finally, notice whether the thing seems to organize space in a pleasing fashion.
What is a pleasing fashion? Any time you attempt to apply rules here, someone will break the rules and still succeed.
To response to aesthetic, I think the architecture is different than sculpture as it has to response to the functional requirements. However in contemporary architectural trends, we can see the building as a piece of sculpture.
You mentioned important quality to aesthetics which is pleasure. Moreover you mentioned very important issue that is breaking rules which may create unfamiliarity. In turn unfamiliar object may increase the required time for perception and then comprehension. Those are very important parameters.
Things usually evolve slowly: tall buildings, non-representational art, jazz. Occasionally, there is revolutionary change. When that happens, change agents are going to initially be thought of as idiots, except for a few like-minded "idiots."