Is video taping neighbor legal

Different states and different countries all have specific rules and restrictions regarding the recording or monitoring of people. This answer cannot be considered to be accurate in your jurisdiction.

Generally it is legal to make audio or video recordings of people, with or without their consent. This will normally be the case as long as it is done from outside their property and without harassing or impeding people. The same is normally the case whether or not the other party is aware of the taping. Be aware that harassment is interpreted very differently in different jurisdictions.

The use to which the material can be put is normally more restricted. It is normal to require permission from the subjects before it can be published. Restrictions apply to the use in criminal or civil legal proceedings as well.