Kate Middleton’s brother, James, embroiled in nasty feud with ‘nightmare’ neighbor: report

Kate Middleton’s brother, James Middleton, is reportedly feuding with a “nightmare neighbor” who is allegedly trying to attack his family.

The mental health advocate, 37, claims in a new report from The Independent that David Alderton, 65, has put up malicious posters around their Stanford Dingley village and frequently complains about noise and light pollution coming from the family farm in Berkshire.

Per the outlet, Alderton runs a motorcycle dealership and lives in a bungalow opposite Middleton’s farm. He allegedly fell out with the adjacent royal after joining a group that objected to a planning application tendered by James – and has now warned Kate’s sibling that “things are gonna get brutal.”

David Alderton has reportedly accused the family’s Berkshire farm of noise pollution. David Alderton/Facebook

James, seen here with sister Pippa, has reportedly tried a mediation program with Alderton. Getty Images

Their relationship has allegedly become so nasty that James has reportedly asked that they communicate only via email or the local council, noting that a mediation program did nothing to quell the vitriol.

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“Mr Alderton has a history of disputes with neighbours within the village,” James told the outlet. “In 2017 he took legal action against the parish council and a parishioner, and intimidated locals for objecting to a series of planning applications, all of which were refused.”

James alleges that Alderton harassed a housesitter. Good Morning Britain

He also claimed his neighbor screamed over dogs barking. James Middleton / Instagram

Page Six has reached out to both parties for comment but did not immediately hear back.

Alderton declined to give a statement to The Independent regarding the most recent report. However, he alleged to the Daily Mail in February 2023 that James uses “clearly unsuitable machinery” that releases “unwelcome toxic and noxious” fumes.

“It’s ancient, noisy, dirty, smelly machinery, old Massey Fergusons, an old threshing machine, wood chipping machines, you name it,” he claimed at the time. “It’s a farm so I suppose he thinks he feels justified in having farm machinery even if it’s derelict. But he has a duty of care to his neighbors and the environment – it should not impact on people nearby.”

Alderton previously complained about James using noisy farm machinery.

The mental health advocate disputed the accusation. James Middleton / Instagram

The father of one disputed the allegations at the time.

“It is sad that someone who chooses to live in the countryside in a farming community cannot accept that from time to time there will be noise and smells from tractors and animals, especially if they live next to a farm,” James explained.

“We would be neglecting our duty of responsibility for the animals and countryside if we did what he asked us to do to our livestock.”

James is the younger brother of Kate Middleton. James Middleton / Instagram

He has been outspoken about his own mental health. Samir Hussein

Per The Independent, everything took a bizarre turn last July when James and his family went on holiday and had a housesitter stay to look over their property.

The family dogs allegedly scared some guinea fowl, which caused the birds to squawk and prompted Alderton to march over and yell at the housesitter.

“Shut those f–king birds up, you noisy c–t,” he reportedly said.

Per the outlet, James says that police are now involved in the dispute. Getty Images

He and his wife, Alizee, welcomed a son in October 2023. Dave Benett/Getty Images for Bulgari

James told The Independent that he first approached authorities following the birth of his son, Inigo, whom he welcomed with wife Alizee Thevenet in October 2023.

“Police were contacted shortly after our son was born as we became increasingly concerned by the activities surrounding a neighbor,” he shared, noting that the dispute has caused many problems.

“[Mr Alderton’s actions] bred animosity in the community, rumor, ill feeling, and caused myself and my family anxiety and distress.”