Imagine staying in a shared house well into your 40s—sounds unconventional, right? But that’s exactly what’s happening across Britain, as more adults are embracing multigenerational flatmate living. Take Nicola Whyte, for instance, who moved into a four-bedroom house share in Balham 16 years ago, never dreaming she’d still be there at 45. Yet, with skyrocketing rents and the daunting challenge of saving for a house deposit, she’s found herself as a long-term housemate—and surprisingly, she’s content. “I didn’t expect to be here after all these years, but I’m not unhappy,” she shares. “My friends think it’s a bit odd, but I genuinely enjoy it. The rent is affordable, it’s close to work, and living with diverse people broadens your perspective.” But here’s where it gets controversial: is this trend a sign of housing crisis creativity, or a symptom of deeper economic struggles?
Data from SpareRoom, the UK’s top platform for shared living, reveals a striking shift: roommates under 35 are declining, while those over 35 are on the rise. Their survey of 3,500 flatmates shows that under-25s now make up just 26% of the market, down from 32% a decade ago. Meanwhile, renters aged 45 and above have jumped from 10% in 2015 to 16% today. This change has fueled the growth of multigenerational households—nearly two-fifths of flatmates live with someone 20 or more years their senior or junior. And this is the part most people miss: it’s not just about age; it’s about compatibility. Nicola’s youngest flatmate is 28, 17 years her junior, and she’s lived with people from 21 to their late 40s. While most get along, age gaps can lead to clashes over housemate etiquette—think independent older tenants versus party-loving younger ones. “Some people just didn’t fit in,” Nicola admits, “but it’s more about who they are, not their age.”
Experts point to two key drivers: fewer young adults leaving home and older renters being priced out of solo living or homeownership. “People assume flat sharing is for the young, but the older cohort is growing fastest,” says Matt Hutchinson of SpareRoom. “There’s this idea that people want to live with their peers, but many actually prefer diverse ages and backgrounds.” Another surprising factor? Over-65s are increasingly sharing their homes with lodgers, up 38% in the past two years. Take Thea May, 29, who moved to south-west Wales and found no affordable rentals. Her mum’s Facebook post led her to Paul Williams, 67, who had a spare room after his daughter left for university. “I wondered if it was a wild idea,” Thea recalls, “but we clicked instantly. It’s given us both purpose, friendship, and companionship.” Paul adds, “I never expected such a strong bond. My friends say they couldn’t live with a stranger, but she’s not a stranger anymore—she’s family.”
Platforms like Cohabitas, a house-sharing site for over-40s, are tapping into this trend. Co-founder Nick Henley notes that 18% of their 5,000 recent registrants are open to intergenerational living, whether in traditional shares or ‘helpful housemate’ setups, where younger people assist older housemates with chores. “Most people will have to house share in the future,” Henley predicts, “but developers aren’t building shared housing—they’re focused on small, single dwellings for young people.” Housing charities warn of a looming crisis: homelessness among over-60s is rising, and retirees without property ownership are increasingly turning to house shares. SpareRoom reports that flatsharers aged 65+ have tripled in the past decade, though they still make up just 2.4% of the market. “It’s baffling this isn’t a bigger topic,” Hutchinson says. “We’re sitting on a ticking timebomb.”
But here’s the question: Is multigenerational flat sharing a creative solution to the housing crisis, or a stark reminder of systemic failures? And could this trend reshape how we think about community and aging? Share your thoughts below—let’s spark a conversation!
