London Landlords Are Refinancing Into a Broken Model: Why Serviced Accommodation Is the Smarter Play

The Remortgage Boom Is Here, but Where Is the Capital Going?

The numbers are striking. In Q1 2026, 58,272 new buy-to-let loans worth £10.8 billion were issued across the UK, with remortgages dominating the landscape as new purchases fell sharply. A full 76% of landlords say they plan to refinance and expand their portfolios. On paper, that sounds like confidence. In practice, it raises a crucial question that too few investors are asking: what exactly are you expanding into?

For most London landlords, the answer is more of the same. More traditional buy-to-let. More HMOs. More long-term tenancies with thinning margins, rising regulation, and the ever-present headache of Section 21 reform. Meanwhile, the equity they are unlocking through remortgage could be deployed into a strategy that consistently delivers two to three times the net yield: professionally managed serviced accommodation.

Let's unpack why the default playbook is costing landlords money, and what the smarter alternative looks like.

Why Traditional BTL Expansion Is Losing Its Edge

There was a time when buying another flat in Zone 3, slapping a tenant in, and collecting rent was a reliable wealth-building strategy. That time has passed, or at the very least, it has become far more complicated.

Here is what London BTL landlords are contending with in 2026:

• Mortgage interest tax relief is gone. The full transition to the 20% tax credit system means higher-rate taxpayers are paying significantly more tax on rental income than they did a decade ago.
• The Renters Reform Act has reshaped the eviction landscape. Removing no-fault evictions adds risk and complexity to tenant management.
• Licensing and compliance costs continue to climb, particularly for HMOs, where selective licensing schemes across London boroughs add layers of bureaucracy.
• Net yields on traditional BTL in London hover around 3% to 4% after costs. For overleveraged portfolios, that can shrink to near zero once voids, maintenance, and management fees are factored in.

So when a landlord remortgages at a competitive rate, releases £100,000 in equity, and immediately funnels it into another conventional rental property, they are essentially doubling down on a model with compressing margins. The capital is working, but it is working slowly.

The Hidden Opportunity Cost of Refinancing Into More BTL

Opportunity cost is the return you miss by choosing one investment over another. It is the concept most landlords instinctively understand but rarely apply to their own portfolio decisions.

Consider two scenarios for that £100,000 in released equity:

Scenario A: Another BTL Property

You use the capital as a deposit on a £400,000 one-bed flat in South London. After mortgage payments, service charges, management fees, insurance, maintenance, and void periods, you net roughly £4,000 to £6,000 per year. Your return on the deployed £100,000 sits at 4% to 6%.

Scenario B: Converting to Serviced Accommodation

You invest £15,000 to £25,000 furnishing and fitting out an existing property in your portfolio to a high standard, then hand it to a professional short-term let management company like Airhosts. The property generates £3,000 to £5,000 per month in gross revenue through platforms like Airbnb and Booking.com. After management fees and running costs, you net £18,000 to £30,000 per year from a single unit. Your return on the deployed capital is dramatically higher, and you still have £75,000 or more left to convert additional properties.

The maths are not even close. Yet the vast majority of that £10.8 billion in Q1 lending is flowing into Scenario A.

How Serviced Accommodation Actually Works

If you are new to the concept, serviced accommodation simply means furnishing a property to hotel standard and letting it on a short-term basis, typically for stays of one to thirty nights, through platforms like Airbnb, Booking.com, and direct booking channels.

Here is what makes it work in London specifically:

• Demand is relentless. London attracts over 20 million overnight visitors per year. Corporate travel, medical tourism, relocation stays, and leisure bookings create year-round demand that hotels cannot fully absorb.
• Nightly rates outperform monthly rents. A well-located one-bed apartment that would rent for £1,800 per month on an AST can generate £120 to £200 per night on short-term platforms, even at 70% to 75% occupancy.
• Flexibility is a strategic advantage. Unlike a 12-month tenancy, you retain full control of your asset. You can adjust pricing dynamically, block dates for personal use, or pivot back to long-term letting if your circumstances change.

What Landlords Need to Know Before Converting

Serviced accommodation is not without its complexities. Going in with eyes open is essential:

• Planning and lease restrictions. Check your lease for any short-let restrictions. Some London boroughs require planning permission for stays under 90 consecutive days, and the Greater London 90-day rule on Airbnb still applies unless you have specific planning consent.
• Furnishing and setup costs. Expect to invest £10,000 to £25,000 depending on the property size and condition. Quality matters here. Professional photography, high-end linens, and a well-equipped kitchen directly impact your nightly rate and reviews.
• Operational intensity. This is the big one. Guest communications, cleaning turnovers, linen management, pricing optimisation, review management, and maintenance coordination all happen at a pace that traditional BTL simply does not demand. Managing this yourself is a full-time job.
• Regulatory compliance. You will need to register with your local authority, comply with fire safety regulations, arrange appropriate insurance, and ensure your mortgage lender permits short-term letting.

The Complexity Problem, and How Professional Management Solves It

Here is where many landlords stall. They see the yield potential of serviced accommodation, run the numbers, get excited, and then realise the operational demands are significant. The gap between "this looks profitable" and "I can actually run this" is where most conversions die.

This is precisely why professional short-term let management exists.

A company like Airhosts handles every aspect of the operation: listing creation and optimisation, dynamic pricing, guest vetting and communication, professional cleaning and linen services, maintenance coordination, and full regulatory compliance. The landlord's role becomes genuinely passive. You own the asset, you receive the income, and someone else does the work.

Compare that to the "hands-off" promise of traditional BTL, which in reality still involves dealing with tenant disputes, rent arrears, periodic inspections, and the slow grind of wear and tear on a property you cannot easily access.

With serviced accommodation under professional management, you get higher returns and less hassle. It is a rare combination in property investment.

The Smart Move for London Landlords in 2026

If you are among the 76% of landlords planning to refinance this year, take a moment before you sign on the next conventional purchase. Ask yourself whether that released equity could work harder.

The data suggests it can. London's short-term rental market continues to outperform long-term letting on a per-pound basis, and the operational barriers that once made serviced accommodation inaccessible to individual landlords have been largely removed by professional management companies.

Airhosts works with London landlords every day who have made exactly this transition, converting underperforming BTL properties into high-yield serviced accommodation without lifting a finger beyond the initial decision. The results speak for themselves: higher monthly income, stronger capital preservation through better-maintained properties, and the flexibility to adapt as the market evolves.

If you are sitting on unlocked equity and wondering where to put it, the answer might not be another rental property. It might be transforming the ones you already own. Get in touch with the Airhosts team today and find out exactly what your property could earn as a professionally managed short-term let.