Why well‑designed HMOs deliver more than just yield
By Chetwood Mortgages
Houses in Multiple Occupation have long been one of the most polarising elements of the UK’s private rental sector. For years, HMOs have been associated with overcrowding, poor standards and regulatory scrutiny, often viewed as a necessary but problematic part of the housing ecosystem.
That perception is now changing.
Across towns and cities, a new generation of complex, high‑end HMOs is emerging, particularly within larger Georgian and Victorian properties. These assets reflect a shift away from models that maximised bedroom numbers towards a more considered approach that prioritises quality of accommodation, tenant experience and long‑term sustainability, while still delivering strong commercial outcomes for landlords.
This evolution is not accidental. It’s being driven by changing tenant demand, tighter regulation and a growing recognition that how a property is designed directly affects how it performs.
Redefining what a modern HMO looks like
At a basic level, an HMO is defined as a property occupied by non‑related individuals sharing a household. In practice, however, the performance of an HMO is shaped far more by design and configuration than by definition.
Historically, many HMOs were optimised around density. Smaller room sizes, limited communal space and reactive management often led to friction between tenants, accelerated wear and tear, and higher levels of churn. These properties frequently generated strong headline yields but suffered from instability and rising maintenance costs over time.
High‑end HMOs challenge that model entirely.
Rather than maximising bed numbers, landlords are increasingly repurposing larger properties to support fewer occupants in a more considered way. Larger bedrooms, en‑suite facilities, well‑designed communal areas and clear zoning between private and shared space all contribute to a markedly different tenant experience.
The result is not just a better living environment, but a more resilient investment.
Design as a behavioural and commercial driver
Design is often discussed as an aesthetic consideration. In the context of complex HMOs, it’s far more than that.
The way a property is laid out influences tenant behaviour, stability and engagement. Adequate space reduces conflict. Private facilities make day-to-day living easier. Well thought out, well proportioned communal areas encourage responsible, shared use rather than creating issues between tenants.
These factors have a direct commercial impact. Tenants are more likely to stay longer, look after the property and engage positively with management. Void periods reduce, maintenance becomes more predictable and the overall cost of management decreases.
In effect, quality of accommodation becomes a yield stabiliser, not a cost centre.
Professional tenants and changing demand
Demand for high‑end HMOs is being driven largely by professional and mobile tenants. Consultants, contractors, key workers and mobile professionals increasingly require flexible accommodation that supports both living and working patterns.
For these tenants, price is only one consideration. Space, privacy, location and quality matter just as much. Properties that meet these expectations command stronger rents, but more importantly, they attract tenants who value stability and quality.
This shift in demand aligns closely with broader changes in how people live and work. As flexibility becomes more common, shared living models that offer dignity and space are becoming increasingly attractive.
Planning, heritage and environmental considerations
Many complex HMOs are located in older buildings subject to planning restrictions or conservation controls. Georgian and Victorian properties often come with architectural significance that limits how far they can be adapted.
Improving these properties requires careful navigation of planning frameworks, particularly when it comes to environmental performance. While wholesale retrofitting may not always be possible, landlords are increasingly investing in sympathetic upgrades that improve comfort and efficiency within permitted boundaries.
Improved heating systems, insulation where appropriate and enhanced ventilation can significantly improve tenant comfort while reducing long‑term running costs. These measures also support compliance with evolving regulatory expectations around property standards.
Importantly, this approach aligns with the intent of the Renters’ Rights Act, which seeks to improve tenant outcomes without undermining responsible investment in the sector.
The commercial case for quality‑led HMOs
From an investment perspective, complex HMOs can deliver attractive yields. However, their real strength lies in resilience.
Lower tenant churn reduces voids and reletting costs. Better‑designed properties experience less reactive maintenance. Stable occupancy supports more predictable cashflow.
For many landlords, this represents a shift away from optimising short‑term yield towards long‑term performance. In an environment of rising costs and increased regulation, that resilience is becoming increasingly valuable.
Why standard lending models struggle
Despite their strengths, complex HMOs often sit uncomfortably within standard lending frameworks.
Non‑standard layouts, higher capital values and specialist tenant profiles can fall outside template‑driven criteria. When assessment is reduced to isolated metrics, the broader strengths of well‑designed HMOs risk being overlooked.
This is where many complex HMO transactions encounter problems. Not because they’re inherently risky, but because they require judgement and context to be properly understood.
Judgement‑led finance as an enabler
Financing complex, high‑end HMOs requires a lender that’s comfortable engaging with detail rather than avoiding it.
At CHL Mortgages, this is the space we’re built to operate in. Complex HMOs sit at the core of our specialist buy to let proposition, and our role is to support these assets in a way that reflects how they work in practice.
That means understanding how the property has been designed, the type of tenants it’s intended to attract and how those decisions support stability, ongoing management and long‑term performance. Rather than relying on simplified measures, we apply judgement and context to assess how the asset is likely to perform over time.
This approach allows us to support transactions that might otherwise stall or be overlooked by more mainstream lenders, giving brokers and landlords a clear route forward on assets that sit beyond standard lending models. In doing so, we enable investment into better‑designed, higher‑quality HMOs that deliver more stable income and improved tenant outcomes.
The future of the HMO market
As the private rental sector continues to evolve, the future of HMOs lies not in density, but in quality.
High‑end, complex HMOs demonstrate that it’s possible to align yield, sustainability and tenant wellbeing. For landlords willing to invest thoughtfully, and lenders willing to apply judgement, these assets represent not a challenge, but a significant opportunity.
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