I hope you are asking about multi-household, commercial, and industrial buildings, because SFDs, duplexes, and twin homes are highly restricted by State Law – preventing design controls.

For multi-households starting with townhouses – limiting the number of attached units (5 to 8) to prevent huge long strings of the “same’ townhouses, staggered units (at least two feet), front porches facing the street, material variations, windows on the sides of end units, amenities varying by the number of units

MH building complexes are usually just facade variations, maybe balconies, material variations, building length (like no more than 150 to 200′), street orientation, 360 degree architecture, and then an emphasis on amenities

Commercial buildings usually just facade and material variations. Discussions about setbacks – in downtowns often up to the street but needs a good streetscape.  I’ve seen some that are trying to promote gathering places in front of big boxes too.

Industrial not much about architecture more about landscaped setbacks and screening the outside storage.