PC Ben Robinson, 32, carried out his campaign of harassment on his victim between September 22, 2018 and April 23, 2019.
On one occasion, on October 20, 2018, when he should have been on duty at Melton Police Station performing his firearms role, he was located and challenged by police officers who saw him peering over the wall at the alleged victim's property while he was wearing police uniform and carrying a police issued firearm.
PC Robinson was also "in close proximity of the officer's property without reason for being there" on dates between February 18, 2019, and April 21, 2019.
On nine different occasions between August 3, 2018 and April 20, 2019, he used the police database to find out the owners of vehicles all associated with the officer.
A misconduct hearing was held at Goole Police Station on Tuesday.
Mr Robinson did not attend and the panel heard he had resigned from the force prior.
Head of Professional Standards Department, Detective Superintendent Matt Baldwin, said: “Our officers are here to protect and serve the public and we will not tolerate any conduct or actions whereby duties and responsibilities are neglected for someone’s own personal gain, undermining public trust and confidence.
“Mr Robinson was suspended from operational duty at the earliest possible opportunity following our investigation beginning last year. Since then, he resigned from the force, which had he not, the proceedings conclude that he would have been dismissed without notice.
"Anyone who fails to meet the high expectations or who commit wrongdoings against our communities or other staff members will be thoroughly investigated, with action taken to remove individuals where necessary.
"Mr Robinson will now be included on the College of Policing Barred List, preventing him from working within policing in the future."