I searched but couldn't find anything similar to my conundrum so please link if need be.
I am looking for information on the implications of changing zoning ordinance side yard setbacks to proactively address flooding concerns and issues created with a 3 to 1 slope for side yard swales (5 to 1 preferred). Our smallest lots are 7,800 sf with a 6' required side yard requirement. The minimum lot width is 60' but we have a bunch of 50' nonconformities platted earlier.
I'm not sure if I am even articulating my "question" well. I suppose I'm looking for some feedback on whether this approach has been tried by others, whether there is any empirical data as to the outcome, good resources, etc. I want to be sure our decision is grounded in the assurance of good results rather than being reactionary.
I want to be equipt to respond to some of the ways a 20' separation between homes will change the neighborhood fabric in a mid-sized suburban railroad town with relatively uniform, smallish lot sizes. And how a narrower footprint will impact issues of height/scale without dismissing the community's need to erradicate flooding problems (real and percieved).