Zoning and easements are often overlooked when buying a house. If you're buying in a multi-family neighborhood, the zoning will definitely be residential. But concessions can be a nasty surprise. Find out if there are any types of easements on the property. Easement gives you a third party that's the right use to part of the property. This could include giving your neighbor the right to do something to build a structure on your future property or giving a utility company.