Mid-Term Rentals in London: How Smaller Landlords Can Compete with Build to Rent Giants

Big Money Is Chasing Build to Rent, But There's an Opening for You

A striking headline landed this month: 71% of professional property investors are now actively targeting Build to Rent (BTR) as their preferred strategy, according to recent findings reported by Landlord Today. At the same time, 43% of traditional landlords are planning to sell up entirely. These are seismic shifts, and if you're a London landlord with a handful of properties, you might be wondering where you fit in.

Here's the good news: this institutional stampede into BTR has created a genuine gap in the market. Construction starts for BTR schemes have plummeted by 79%, meaning the pipeline of purpose-built rental stock is drying up just as demand from corporate relocating tenants continues to grow. Those tenants need somewhere to stay, and they need it now, not in three years when a tower block finally completes.

That's where mid-term rentals come in.

What Are Mid-Term Rentals, and Why Do They Matter Right Now?

Mid-term rentals typically cover stays of one to three months. Think of the space between a short holiday let and a traditional 12-month assured shorthold tenancy. The tenant profile tends to be corporate professionals on relocation assignments, project-based contractors, families between home purchases, and international executives settling into a new city.

London has always attracted this kind of tenant. But two colliding forces are supercharging demand in late 2026:

1. Shrinking private rental supply. With nearly half of traditional landlords looking to exit, fewer furnished properties are available for any rental duration.
2. BTR construction delays. The institutional investors pouring capital into Build to Rent won't deliver new units for years. Meanwhile, the corporate tenants those developments were designed for still need accommodation today.

If you own two, five, or ten furnished units in London, you're sitting on exactly the kind of stock these tenants are searching for.

How Mid-Term Rentals Work in Practice

Pricing and Revenue

Mid-term rentals typically command a premium over standard ASTs because they include furnishings, bills, and flexibility. A one-bedroom flat in Zones 1 or 2 that might achieve £2,000 per month on a long let could realistically generate £2,800 to £3,500 per month as a furnished mid-term rental. Corporate relocation budgets are often generous, and tenants are willing to pay for quality, convenience, and a move-in-ready experience.

Tenant Quality

This is one of the real attractions. Corporate relocating tenants tend to be thoroughly vetted by their employers, financially stable, and respectful of the property. Many bookings come through relocation agencies or corporate travel platforms, adding another layer of screening before a guest ever walks through the door.

Furnishing and Presentation

Mid-term tenants expect a higher standard than a typical long-let tenant. You'll need quality furniture, a fully equipped kitchen, reliable Wi-Fi, and clean, modern interiors. Think hotel-apartment standard rather than IKEA basics. The upfront investment pays for itself quickly through higher nightly or monthly rates.

The Pros of Going Mid-Term

• Higher yields than traditional long lets, often 30% to 60% more per month
• Fewer void periods than you might expect, given the depth of corporate demand in London
• Less wear and tear than short-stay holiday lets, since tenants treat the property as a temporary home
• Flexibility to adjust pricing seasonally or pivot between strategies as the market shifts
• No 90-day limit concerns in most London boroughs, unlike short-term holiday lets

The Pitfalls to Watch For

Mid-term rentals aren't without their complications. Here's what every landlord should consider:

Regulatory grey areas. Depending on your borough and lease terms, stays under 90 days may still trigger short-term let regulations. Stays of one to three months can sometimes fall into an awkward space between planning use classes. Always check your local authority's stance and your lease or mortgage conditions.

Turnover management. Even though turnovers happen less frequently than with short lets, each changeover still requires professional cleaning, linen changes, inventory checks, and sometimes minor maintenance. Multiply that across several units and it becomes a real operational burden.

Marketing complexity. You'll need to maintain listings across multiple platforms (Airbnb, Booking.com, Spotahome, corporate housing portals) and manage enquiries, contracts, and payments. This is more involved than handing keys to a long-term tenant and collecting rent by standing order.

Void risk between bookings. A two-week gap between a departing and arriving tenant can eat significantly into your annual yield. Filling those gaps requires proactive marketing and a solid booking pipeline.

When Mid-Term Gets Complicated, Short-Term Gets Interesting

Here's something worth considering. Many landlords who start exploring mid-term rentals quickly realise that the operational demands, while lighter than full short-term lets, are still substantial. You're essentially running a hospitality business: guest communications, check-ins, cleaning schedules, platform management, pricing optimisation, and compliance monitoring.

The logical next question becomes: if I'm already doing most of this work, could I earn even more by opening up to shorter stays as well?

The answer, for many London landlords, is yes. Short-term lets (stays of a few nights to a few weeks) can generate significantly higher per-night rates, especially in high-demand London locations. When managed professionally, a well-located one-bedroom flat can outperform both long lets and mid-term rentals by a considerable margin.

The catch, of course, is that short-term lets require even more hands-on management: dynamic pricing, 24/7 guest support, rapid turnovers, and meticulous compliance with London's 90-day rule.

That's precisely why companies like Airhosts exist.

The Simplest Path to the Highest Returns

At Airhosts, we manage the entire short-term let operation for London landlords, from listing optimisation and dynamic pricing to guest screening, professional cleaning, and full regulatory compliance. Our clients enjoy the revenue benefits of short-term and mid-term lettings without any of the day-to-day headaches.

For landlords with two to ten units, this is especially powerful. You don't need institutional scale or purpose-built stock to compete with the BTR giants. You just need a great property in a strong London location and a management partner who knows how to maximise its earning potential across every stay duration.

We blend short-term and mid-term bookings strategically, filling gaps between longer corporate stays with high-yield short lets, ensuring your property is earning consistently throughout the year.

Your Properties, Your Advantage

The institutional investors are betting billions on Build to Rent, but their stock won't materialise for years. Traditional landlords are selling up, shrinking the supply of quality furnished rentals. Corporate tenants are arriving in London every week and struggling to find suitable accommodation.

You already own the solution. The only question is whether you want to manage it all yourself, or let a proven team handle everything while you collect the returns.

Get in touch with Airhosts today. Whether you have two flats in Canary Wharf or ten apartments across South London, we'll show you exactly how much more your portfolio could earn, with zero stress on your end. Your properties are already in demand. Let's make sure they're working as hard as they should be.