A row has boiled over after a man kept returning home to find his neighbour parked on his private driveway drive.

The resident, who lives in a duplex with a clearly marked driveway, took to Reddit to explain that his lease explicitly states the parking space is reserved exclusively for his property.

The issue began when a new neighbour, whom he refers to as 'Chad' to protect his identity, moved into the upstairs unit.

Since then, the man has been treating the driveway "like it's a free-for-all", according to the post shared on Reddit's 'Entitled People' subreddit.

The row broke out over the drive (file pic)

Initially, the resident let the behaviour slide, thinking his neighbour might simply be confused about the parking arrangements.

He decided to approach the matter diplomatically, casually mentioning that the space belonged to him.

To remove any doubt, he "even showed Chad the lease" as evidence of his exclusive right to the driveway.

The neighbour "acted super chill" during this conversation and gave assurances that there would be "no problem" going forward. Despite these promises, the parking violations continued.

The situation came to a head the previous week when the man returned from work in the rain, laden with groceries, only to find Chad's car once again occupying his driveway.

His frustration was compounded by the poor weather and the inconvenience of carrying shopping whilst unable to park at his own home.

When he knocked on Chad's door to remind him about the parking arrangement, the neighbour's response was dismissive. "Well I was just gonna be a few minutes, it's not like you own it," Chad told him.

The man attempted to remain composed, reiterating that the space was specified in his lease and that he had already asked politely.

His neighbour's reaction was to roll his eyes and mutter: "Dude, it's just a driveway, don't be so uptight."

This confrontation convinced the resident that Chad would continue to disregard the parking boundaries. He decided more formal intervention was necessary to resolve the ongoing dispute.

The resident consulted his landlord about the situation, who backed him up and ensured Chad was made aware he could not use the driveway.

This intervention has not been well received by the neighbour, who is now "giving [him] the cold shoulder" and "acting like [he's] the bad guy".

"I just don't get how some people can feel so entitled to something that's clearly not theirs and then get mad at you for setting a boundary," the man wrote.

His post resonated with Reddit users, attracting thousands of upvotes and hundreds of comments.

One commenter suggested: "I feel like the answer to every 'it's not a big deal' response is to say 'then it shouldn't be a big deal for you not to park there.'"