London Court Evicts Financier Andrew Grijns Over £2.6 Million Claim to Mother’s Chelsea Townhouse

A senior London financier who spent more than two decades living rent-free in his mother’s £3.85 million Chelsea residence has lost his legal battle to seize two-thirds of the property.

He walked away with nothing.

Instead, High Court Master Timothy Bowles ruled that 50-something financier Andrew Grijns held no legal or equitable entitlement to the four-storey Georgian townhouse in Bury Walk, Chelsea, declaring him an unlawful trespasser in the home owned by his 80-year-old mother, Janice Grijns. Under the High Court order, Andrew must now pay his mother £85,000 for every year he remained inside the property past August 2023—an occupancy the court determined had degenerated into an acrimonious, hostile holdout.

Decades of Luxury Shelter in Bury Walk

The dispute centers on a prime slice of West London real estate. Janice Grijns and her late husband, Leendert Grijns, purchased the Bury Walk townhouse in 1994 to serve as a family hub, an occasional holiday retreat, and a convenient base for their son as he launched his career in London's financial district. An independent appraisal placed the market value of the four-bedroom house, which includes a self-contained basement flat, at approximately £3.85 million in July 2024.

Leendert worked as an international banker, while Janice built a professional background in commercial real estate before pivoting to academia. For Janice, the Chelsea townhouse offered direct access to London’s opera houses, West End theatres, and antiques markets.

Andrew moved into the residence around 1999. He stayed for more than 20 years.

That arrangement saved him a fortune. By remaining in Bury Walk through his thirties and forties, Andrew anchored himself in one of the capital's most expensive postcodes without taking on a mortgage or acquiring independent real estate of his own.

The Estoppel Argument and Tax Maneuvers

Andrew anchored his lawsuit to the doctrine of proprietary estoppel, claiming his parents made binding verbal pledges as far back as 2004 that he would inherit the majority of the property.

He argued before the court that he had shaped his adult life around those promises. According to his legal filings, remaining in Bury Walk constituted a personal and financial detriment. He insisted the house was far larger than he required, maintained that its traditional furnishings clashed with his personal taste, and argued that paying for routine maintenance had depleted cash he could have deployed to purchase his own real estate.

The friction over succession intensified during family negotiations concerning potential tax liabilities. Andrew lobbied his parents for a larger share of the London house than his three brothers, arguing that inheriting American assets from his mother’s estate would expose him to punitive enforcement by United States tax authorities.

In 2015, Janice sent an email outlining a proposal to bequeath him a two-thirds stake in the Chelsea property upon her death, leaving the remaining third to be split among his three brothers. Andrew replied that he felt lucky and deeply grateful.

In court, he argued that this email exchange constituted an enforceable legal contract.

Master Bowles rejected that interpretation outright. The court determined the email represented nothing more than a mother expressing a conditional, revocable testamentary intention, not an irrevocable legal surrender of her primary asset.

Bitter Email Exchanges and the 2019 Fracture

The family alliance fractured irreversibly in 2019 following the death of Andrew’s father, Leendert, which left Janice as the sole registered proprietor of the townhouse.

At the time, Andrew was weathering both a divorce and a parallel civil lawsuit against a former business associate. Strains between mother and son erupted into open hostility. During a series of blistering email confrontations in June 2020, Andrew accused his mother of running a bullying campaign designed to sabotage his social and professional standing.

Janice hit back directly, accusing her son of waiting for her to die so he could liquidate the home.

Recognizing that cohabitation had become impossible, Janice revoked her consent for him to reside on the premises and ordered him to vacate Bury Walk immediately. Andrew refused to budge, barricading himself in the residence and eventually filing the High Court claim to block eviction and extract £2.6 million from the estate.

The Legal Stakes: Under English property law, proprietary estoppel demands ironclad proof that an owner made clear, unambiguous assurances, that the claimant relied on those assurances, and that the claimant suffered substantial personal detriment as a result. Master Bowles found that Andrew had suffered no detriment whatsoever, having derived decades of rent-free luxury living in central London while drawing an executive salary in finance.

With his proprietary estoppel claim dismissed, Andrew Grijns faces formal enforcement proceedings to vacate the Bury Walk townhouse, alongside court-mandated occupation fees accumulating at £85,000 per year from August 2023 until he hands over the keys.