the borough council always send planning applications to the parish for the councillors/and the public to view and comment on. The parish wouldn't be able to say how they wanted the houses to look say, but they could comment that maybe they weren't in keeping with the parish. Whether the borough council take note or not is a different issue.
The parish council cannot AFAIK be picky about who might live there or whether or not somone has left their van on the road. (like noone else does ever!!!) but obviously the housing association have rules and regs of their own for such things.