Who is an aggrieved party?

For zoning adjustment appeals an aggrieved party is an owner of land whose property is directly or indirectly affected by the granting or denial of a permit or variance under Town code; a person whose land abuts land for which a permit or variance has been granted; or any other person or group of persons who may seem to suffer particularized injury as a result of the granting or denial of such permit, or variance.