The City I work for is contemplating allowing secondary suites (granny flats) in our R1 -- Single Family District. Many people are in support of a greater variety of housing options, including secondary suites because we have next to no affordable housing in this community. However, there are several people concerned about traffic increases, noise, impacts to utilities, etc. I was trying to explain to the Planning Commission last night that there are ways to mitigate many of these concerns through added regulations on secondary suites, and that generally speaking a small percentage of existing houses typically retrofit for the second unit given the chance.
When I was in Davis granny flats were conditional uses in the R1 zone, and I think we maybe had four to five permits a year for a population of around 60,000 people. I don't think that is the widespread proliferation that everyone seems to fear here.
So for those of you that have permits for this type of use, do you have any statistics about the number of permits you issued in the past few years in relation to your single family housing stock? Also, what have been the impacts of allowing granny flats (good and bad)?
As always... thanks so much for all of your help.