A few days ago on the Keep Roslindale Quirky Facebook group, somebody asked about finding a building permit for a particular address in the neighborhood. Somebody else told her she could find it on a database off the ISD page on the city Web site. Sure, if you're familiar with how the city database interface works, which most people aren't. But using that interface, I created a map of open building permits in Roslindale (well, ones for projects worth more than $1,500).
Possibly useful? Something worth doing for other Boston neighborhoods?