Can You Build Against A Neighbour's Wall. You don't want to build to close and destroy the integrity of. Building up against another property structure can create problems, especially if a fire starts in one or the other structures.
Batrouney says you can oppose it on those grounds.
To resolve a problem with a neighbor, it's best to approach the situation with calm politeness. Oh, and it also contains very good pictures! Most zonign districts in nyc allow them, for example if you are in r6 through r10 zoning you can build attached to your neighbors building. You don't want to build to close and destroy the integrity of.