Six months into 2026, the London rental market is in an unusual position. Demand is at multi-year highs. Supply is at multi-year lows. Rents are still rising. And the regulatory backdrop has just shifted under landlords' feet with the Renters Rights Act.

If you own property in London, or you're considering buying, this is what you actually need to know about the current market, and how to position your strategy for the next 12-18 months.

Where rents sit in mid-2026

London rents have continued rising into 2026, with prime central boroughs the most expensive in the city. Kensington & Chelsea, Westminster and Camden sit at the top of the table.

The growth pattern is uneven. Mid-tier residential is climbing fastest because that is where the structural shortage is biting hardest. Ultra-prime is moving more slowly because that market was already at premium pricing before the current cycle began.

For landlords with property in the mid-tier bracket — which covers most of our portfolio across Marylebone, Pimlico and Chelsea — pricing power is notably stronger now than it has been at any point in the post-pandemic recovery.

Why supply has tightened so much

The shortage is not accidental. Three things have driven it.

  • Section 24 tax changes have made highly leveraged BTL portfolios less profitable, prompting a wave of disposals between 2020 and 2024
  • The end of the Furnished Holiday Let regime in April 2025 has removed a tax incentive that supported about 25,000 London short-lets
  • Higher mortgage rates have stalled new BTL purchases. Net new private rental supply in London has been negative for three consecutive years

The result: 12 to 15 prospective tenants per available property across most of Central London. Letting agents in Marylebone tell us they're back to running closed viewings to manage the volume.

Regulatory pressure has changed behaviour

The Renters Rights Act came into force on 1 May 2026. The headline change. Section 21 abolition. Has had a measurable behavioural effect on landlords.

We see three responses pretty clearly in our enquiries:

  1. 01A small group are exiting BTL altogether and selling
  2. 02A larger group are sticking with ASTs but tightening tenant vetting significantly
  3. 03A growing group are moving to models that sit outside the Act. Short-let, mid-term and guaranteed rent

That third group is bigger than it looks. Our guaranteed rent enquiries have tripled since January, and the largest single source is landlords pre-empting Section 21 issues by switching structures before they need to.

Where opportunity sits now

For landlords willing to actively manage their position, opportunities are stronger than the gloomy headlines suggest.

Short-let yields in W1, W8 and SW3 remain materially above long-let equivalents. Mid-term lets have grown as a category over the last 18 months and command premium rates. Block-level guaranteed rent contracts are at the highest take-up we've seen. Large property owners want certainty above all else.

Even within ASTs, the rental ceiling is rising. The post-1-May freeze on landlords adjusting rents annually has slowed growth at the lease-renewal point, but new lets continue to price above 2024 levels.

Three strategies for the next 12 months

1. Tighten what you have

If you're sticking with ASTs, the priority is tenant quality and property condition. The new Decent Homes Standard will be enforced. Period buildings need audits on damp, electrical safety and structural condition. Tenants now have more leverage on disrepair. Investing in the property pre-emptively is cheaper than litigating.

2. Consider a model switch

If your property sits in a strong short-let postcode and your mortgage allows it, the maths in 2026 favours short-let or guaranteed rent over AST renewal. We see this most clearly in Mayfair, Marylebone and Kensington.

3. Plan capital expenditure properly

Period buildings across Marylebone, Pimlico and Notting Hill will need Decent Homes Standard work over the next 18 months. Front-loading this expenditure protects rental income and prevents larger problems later.

The takeaway

London's rental market in 2026 is structurally tight, regulatorily complex, and rewards landlords with a clear strategy. Passive holding still produces income, but active management. Pricing properly, choosing the right letting model, and pre-empting regulatory issues. Produces materially better outcomes.

Have a question about your property? Speak to the Taj Cribs team. We manage properties across the whole of Central London and offer free valuations with no obligation.