Demographic Shift in the UK Flatshare Market

New research from SpareRoom highlights a significant change in the age profile of flatshare tenants across the UK. While younger renters under 25 once made up nearly a third of the flatshare market, their representation has declined to just over a quarter (26%). Conversely, renters aged 45 and over now account for 16% of flatsharers, up from 10% in 2015. This shift points to a growing presence of older tenants in shared accommodation.

Older Flatsharers Increasingly Common

The data shows that although 25 to 34-year-olds remain the largest group in the flatshare market at 42%, the most notable growth has occurred among older age groups. The proportion of flatsharers aged 55 to 64 has more than doubled from 2.6% to 5.3%, and those over 65, while still a small segment at 2.4%, have tripled in number over the past decade from 0.8%. This trend reflects a broader demographic change in the rental sector.

High Rents Driving Changes in Living Arrangements

SpareRoom attributes this demographic evolution largely to unaffordably high rents. Average rents have increased by 29% over recent years, reaching a record £753 per month in the third quarter of 2025. As a result, younger renters are increasingly likely to remain living with family, while older renters who may be priced out of home ownership or solo renting turn to flatsharing as a more affordable option.

Impact on Geography and Household Dynamics

Matt Hutchinson, director of SpareRoom, explains: “It used to be the case that multi-generational households were a rarity in flatsharing. The market was dominated by groups of twenty and thirty-somethings chasing jobs and opportunities in cities and major towns.” He adds that “unaffordably high rents are shifting household dynamics as well as changing the geography of flatsharing too.”

Hutchinson notes that older renters are increasingly migrating from expensive city centres to more affordable suburban towns, altering the traditional geography of the flatshare market. This migration reflects the broader affordability pressures facing renters across the UK.

Long-Term Concerns for Renters and Landlords

While the market adapts to these changes, Hutchinson warns of potential long-term issues: “The UK is not a country that’s geared towards renting for life. Those who haven’t built equity in property could be much worse off in their retirement years unless something changes dramatically.”

Additionally, SpareRoom reports a 38% increase over the past two years in over-65s sharing their homes with lodgers, indicating that older renters are not only sharing but also offering accommodation to others.

What This Means for Landlords and Letting Agents

For landlords and agents, the rise in older flatshare tenants may require adjustments in marketing, property suitability, and tenant management strategies. Properties that appeal to a broader age range, including older tenants, could see increased demand. Understanding the needs of multi-generational or mixed-age households will be important in maintaining successful tenancies.

Moreover, as rental affordability continues to influence tenant behaviour, landlords should be aware of shifting geographic demand patterns, with more tenants potentially seeking accommodation in suburban areas rather than city centres.