September 2026 London Rental Market Review - HomeLet Rental Index insights from base property specialists By Kristjan Byfield, co-founder
For years, September has been one of the busiest months in the London lettings calendar. Students return, graduates start new jobs, professionals relocate and landlords prepare for the final rush of activity before the market begins its traditional slowdown towards Christmas. It's a rhythm that anyone who has spent a couple of decades working in London's private rented sector knows rather well.
Except this year, something interesting has happened. September was unusually quiet for us at base, with the number of tenancies agreed around 50% below September 2025. Ordinarily, that might raise a few eyebrows, particularly against a backdrop of London rents reaching another record high. But the explanation is rather less dramatic than the headline might suggest. July and August were both record months for us, and we entered September with exceptionally little available stock. Everything we did have available during the month has subsequently let.
In other words, we haven't experienced a collapse in demand. We've experienced a redistribution of activity, with transactions effectively frontloaded into the earlier summer months.
That distinction is important, because it's exactly the sort of detail that gets lost when rental markets are reduced to a handful of monthly statistics. And with September's HomeLet Rental Index placing a particular emphasis on London, there's plenty to unpack about what is really happening across the capital.
The statistics show one story, but on the ground...
HomeLet's September 2026 Rental Index, produced in conjunction with Dataloft by PriceHubble, reports that average London rents have reached £2,272 per calendar month, a new record and an increase of 1.5% compared with August. Annual growth, however, has slowed to 3.3%, down from the 5.1% reported in August.
At first glance, that might appear contradictory. How can rents be reaching new records while annual growth is slowing? The answer is that these figures are measuring different things. September's monthly increase reflects what happened to achieved rents compared with August, whereas annual growth compares the market with September 2025. A strong monthly performance can coexist with a slowing annual growth rate, particularly when the previous year's market was experiencing substantial increases.
For landlords, this is a useful reminder that the direction of travel matters more than any individual headline. London's rental market is still achieving record rents, but the pace of growth appears to be normalising. That is broadly consistent with what we've been predicting throughout 2026.
Earlier this year, we were cautious about some of the rental inflation appearing in the indices because we believed the implementation of the Renters' Rights Act had temporarily distorted the picture. Landlords with long-standing tenancies at below-market rents were bringing those arrangements to an end or negotiating increases to reflect prevailing market values. The resulting uplift was genuine, but it was partly a correction of historical underpricing rather than evidence that the wider market was suddenly willing to pay substantially more.
As that adjustment has worked its way through the system, we're beginning to see something closer to the underlying market. Our expectation remains that London will settle into a more sustainable period of rental growth, potentially around 2-3% per annum, although individual properties and neighbourhoods will continue to outperform or underperform that benchmark.
Importantly, this is our market outlook rather than a forecast made by HomeLet. And it comes with a rather substantial caveat: quality matters, perhaps more than it ever has.
Hackney up 6.2%, Tower Hamlets down 3.6% - can neighbouring markets really be that different?
One of the most interesting elements of September's report is the extraordinary variation between London's boroughs.
HomeLet records annual rental growth of 10.7% in Wandsworth, 9.8% across Camden and the City of London, and 7.9% across Lewisham and Southwark. Closer to our Shoreditch home, Hackney and Newham have recorded growth of 6.2%, with average monthly rents reaching £2,345.
Tower Hamlets, meanwhile, has recorded a 3.6% annual decline, with average rents of £2,146.
For anyone unfamiliar with London's geography, these figures might suggest two very different markets. For those of us operating across Shoreditch, Bethnal Green, Whitechapel, Aldgate and the wider City Fringe, they're rather more intriguing. We're talking about neighbouring locations, often competing for very similar professional tenants, yet their reported performance differs by almost ten percentage points.
Our own experience offers a slightly different perspective.
Across our Hackney portfolio, we've seen rental increases of approximately 5-10% this year, which broadly supports HomeLet's findings. However, our Tower Hamlets properties have also recorded growth, typically around 2-5%, rather than the decline suggested by the borough-wide figures.
Why the difference? My suspicion is that the substantial concentration of high-end, luxury apartments in parts of Tower Hamlets is influencing the aggregate figures. Some of these developments compete within a particularly price-sensitive segment of the upper market, where demand and achieved rents may have softened. That is a plausible explanation rather than something the HomeLet report itself proves, but it highlights the limitations of relying on a single borough-wide average.
Our own portfolio is weighted more towards the middle market and the lower end of the premium sector, particularly around E1 and the City Fringe. These properties appeal to professionals who value location, condition, convenience and the quality of their living environment. We also invest considerable time and effort in ensuring that the homes we manage are maintained and marketed to exacting standards.
And that's where things get interesting.
A property doesn't exist in isolation from the service surrounding it. A beautifully presented home, supported by professional management and an agent with a strong reputation amongst residents, is a different proposition from an otherwise comparable property where maintenance is neglected, communication is poor and the marketing leaves rather a lot to the imagination.
We believe that difference is increasingly being reflected in rental performance.
The lesson for landlords is not that Tower Hamlets is a poor investment location or that Hackney is guaranteed to deliver superior returns. It's that micro-market knowledge, property quality and management standards can matter considerably more than the borough average.
The HomeLet figures also reveal that Hackney and Newham have experienced the greatest rental growth anywhere in London over the past five years, at an extraordinary 52.2%. That is a remarkable increase, and one that should give investors plenty to think about. It demonstrates the long-term strength of demand across these East London neighbourhoods, but it also raises questions about how much further rents can realistically rise before affordability becomes an increasingly restrictive factor.
A record rent doesn't mean an unlimited appetite to pay more
September's affordability data provides some useful context.
London tenants are now spending an average of 37.9% of gross household income on rent, compared with 38.3% in September 2025. Nationally, the figure is 32.1%.
That modest improvement in London affordability is welcome, although we should be careful not to overstate what it means. The calculation reflects the incomes and rents of households entering new tenancies, rather than tracking the financial circumstances of every existing renter. Changes in the profile of people moving can therefore influence the result.
Nevertheless, the broader picture is clear. Housing continues to consume a substantial proportion of London residents' income, and that inevitably places limits on what the market can sustain.
We have long argued that affordability, rather than a lack of underlying demand, is likely to become the defining constraint on London's rental growth over the next few years. People still want to live in the capital. They want access to its employment opportunities, cultural attractions, social networks and lifestyle. But wanting to live somewhere and being financially able to do so are not quite the same thing.
This is why we're increasingly focused on the relationship between rental value and perceived quality.
In a market where residents are spending close to 40% of their gross income on housing, expectations are understandably high. A well-maintained property, presented beautifully and managed by people who genuinely care about the resident experience, offers a stronger value proposition than one that simply happens to be in the right postcode.
And landlords should recognise that this isn't merely a customer service issue. It's a commercial one.
Properties that residents actively want to live in are better placed to attract suitable applicants, achieve stronger rents and minimise void periods. Equally, a poor management experience can undermine an otherwise attractive home. That relationship between service and financial performance has always been central to how we operate at base, and we believe the market is increasingly rewarding it.
The summer rush has changed, but the real test could arrive at Christmas
If September's rental figures tell us where the market has been, tenant behaviour may offer a much more interesting indication of where it's heading.
One of the clearest changes we've observed since the introduction of periodic tenancies is the lengthening of the property search window. Historically, most tenants would begin looking seriously around four to six weeks before their intended move. Today, we're routinely dealing with applicants beginning their search two to three months in advance.
That has required a fundamental adjustment to how and when we market available properties. Landlords and agents who continue to work to the old timetable risk missing applicants who are already researching their next move considerably earlier.
Interestingly, this longer search period hasn't translated into enormous volumes of enquiries per property. We're typically seeing around six to eight enquiries for a listing, but those enquiries tend to come from motivated applicants who know what they're looking for. The result is that a relatively small pool of suitable applicants is still producing successful tenancies.
It's a rather useful reminder that enquiry volume and actual demand are not interchangeable.
But there is another development that has caught our attention this autumn, and it could prove far more significant.
We've received a noticeable flurry of notices from residents during October, which means we're expecting substantially more stock available for occupation in December than we would ordinarily anticipate.
That is unusual.
Traditionally, London's lettings market begins to slow from around the middle of October, with activity becoming particularly subdued from mid-December until the middle of January. Christmas isn't generally the time people choose to move home unless they have a compelling reason.
However, periodic tenancies may be beginning to alter those established patterns. Residents have greater flexibility to determine when they move, and we're now entering the first winter under the new arrangements.
What we don't yet know is what is motivating this apparent shift.
Are people simply taking advantage of their increased flexibility to move when it suits them? Are some deliberately targeting the quieter winter months in the hope of securing a better rental deal? Or might there be a growing number of London residents choosing to leave the capital temporarily, perhaps staying with family over Christmas or working remotely from somewhere warmer during the least appealing months of the British winter?
These are possibilities rather than established trends, but they are worth investigating.
If a meaningful number of residents begin timing their moves around periods when they expect landlords to be more negotiable, we could see a new seasonal dynamic emerge. Equally, if winter stock increases without a corresponding rise in applicants, landlords may face greater competition and potentially longer voids during a period that has historically been relatively predictable.
For now, it's very much a case of 'suck it and see', to borrow a phrase from one of the more memorable advertising slogans of years gone by.
But we'll be watching November and December particularly closely, because this could be one of the first tangible signs that the Renters' Rights Act is changing not just the legal framework of renting, but the actual behaviour of London's tenants.
London's tenants are younger, more international and increasingly informed
HomeLet's September report also provides a particularly useful snapshot of the people renting homes across the capital.
Over the preceding twelve months, 56% of tenants in its London dataset were under 29, with a further 19% aged between 30 and 39. The predominant rental band was £1,000-£1,499 per month, and flats accounted for the overwhelming majority of properties let.
The movement data is equally revealing. Around a third of London moves were within five miles, while 21% originated overseas, compared with 12% nationally.
None of this is especially surprising to those of us working in London's lettings market every day. London remains an international city, attracting students, graduates and professionals from across the world, while established residents often prefer to remain within neighbourhoods where they've built their careers, friendships and social lives.
Our own portfolio is predominantly let to professionals rather than students, so we would expect the proportion of international arrivals to be slightly lower than the HomeLet figure, probably somewhere around 15-20%.
But there's another change in tenant behaviour that doesn't appear in the rental index and which I believe could have an enormous influence on the sector over the next few years.
Artificial intelligence.
For decades, there has been a significant knowledge imbalance between professional landlords or letting agents and the residents occupying their properties. Understanding the finer points of housing legislation required time, research and often specialist advice. Most tenants simply didn't have the inclination or resources to investigate every potential issue unless something had gone seriously wrong.
That world is disappearing remarkably quickly.
We're increasingly receiving correspondence from residents referencing specific pieces of legislation, statutory obligations and potential remedies that many would have been unlikely to identify or articulate twelve months ago. AI tools have made information and formal correspondence much easier to access and produce.
Of course, AI-generated advice isn't always accurate, and an authoritative-sounding letter doesn't automatically mean the legal position is correct. But the shift in accessibility is undeniable.
Personally, I think better informed residents are a positive thing. We have always advocated transparency, fairness and accountability across both sides of the rental relationship. Residents should understand their rights, and landlords should understand their responsibilities.
The challenge is that this new accessibility to information creates a much less forgiving environment for landlords and agents who are relying on outdated knowledge or inadequate systems.
A resident who previously might have tolerated a questionable practice can now challenge it in minutes. That doesn't mean every challenge will be justified, but it does mean every landlord needs to be capable of responding accurately, professionally and with the appropriate supporting records.
Which brings us to what I believe is the biggest structural change facing the private rented sector.
The hobby landlord is becoming a critically endangered species
Over the past year, we've spoken extensively about the growing number of landlords approaching base for professional property management. That trend is continuing, and I don't see it reversing any time soon.
The reason is relatively straightforward. The technical knowledge, administrative systems and compliance processes required to manage residential property properly have reached a level where casual self-management is becoming increasingly difficult to justify.
This isn't an attack on private landlords. Quite the opposite. Many of the self-managing landlords we've met over the years have been conscientious, decent people who care deeply about their properties and the residents living in them.
But being a good person and being a fully compliant landlord are not necessarily the same thing.
The regulatory environment has become extraordinarily complex, and further substantial changes are expected before the end of the decade. Landlords need to understand not only the legislation itself, but also how to demonstrate compliance, maintain accurate records, respond to disputes and ensure that nothing falls through the cracks.
For those willing to invest the necessary time, training, technology and resources, self-management will remain a perfectly legitimate choice. There are some exceptionally knowledgeable private landlords operating in London.
For everyone else, however, the options are becoming increasingly stark: bring in the professionals or consider leaving the sector.
And I suspect we're about to see something similar happen amongst letting agents themselves.
For years, some agencies have resisted investing properly in technology, relying instead on manual processes, spreadsheets and the accumulated knowledge of individual employees. That approach may have been commercially viable in a less regulated environment, but it becomes increasingly fragile as compliance obligations multiply and the consequences of errors become more severe.
Technology isn't a luxury in modern property management. It's part of the infrastructure required to deliver consistent service, maintain reliable audit trails, manage risk and operate a profitable business.
At base, we've long believed that the strongest results come from combining excellent people, robust processes and intelligently selected technology. None of those elements is sufficient on its own. Technology without capable people creates a different set of problems, while excellent staff without the right systems are inevitably constrained by the amount of work they can manage safely and effectively.
AI will accelerate this divide.
Agencies that successfully adopt and integrate new technologies should be able to improve productivity, consistency and responsiveness while freeing their teams to focus on the parts of property management that genuinely benefit from human expertise. Those that fail to adapt may find themselves facing rising costs, greater operational risk and shrinking margins.
My prediction is that the next three to five years could deliver one of the largest periods of consolidation the private rented sector has experienced.
We are likely to see more landlords selling individual properties or entire portfolios, more established investors acquiring stock from those choosing to exit, and more letting agencies being acquired as smaller operators struggle with the growing cost and complexity of running a compliant business.
That won't necessarily mean fewer rental homes overall, although the impact on supply will depend on who buys the properties and what they choose to do with them. What it could mean is a substantial change in who owns, operates and manages London's rental housing.
The sector is becoming more professional, more technical and more demanding. In many respects, that is long overdue.
What does all this mean for London landlords and property investors?
For landlords, the message from September's data is encouraging, but it comes with conditions.
London continues to demonstrate remarkable resilience. Average rents have reached another record, demand remains effective and well-presented properties in desirable locations are still achieving excellent results. Yet the market is becoming increasingly selective, and the gap between a well-run investment and a poorly managed one may continue to widen.
The days when landlords could rely almost entirely on a rising market to deliver improved returns are, in our view, coming to an end.
Future performance is likely to depend increasingly on the fundamentals: buying the right property, understanding the local market, maintaining the home properly, pricing accurately, selecting suitable residents and managing the tenancy professionally from beginning to end.
For investors considering acquisitions, the extraordinary five-year growth recorded in Hackney and Newham demonstrates the potential of well-located London residential property. But historical performance should never be confused with a guarantee of future returns. With affordability already stretched, acquisition decisions need to be based on realistic rental assumptions, operating costs, financing and the long-term sustainability of demand.
For existing landlords, meanwhile, professional management is becoming less about convenience and more about protecting the investment itself.
An experienced agent should bring considerably more to the relationship than finding a tenant and collecting the rent. They should provide accurate market intelligence, practical advice, robust compliance systems, transparent communication and a service that protects the interests of both the owner and the resident.
That is the standard we believe landlords should expect, and it's the standard we've spent more than two decades building our business around.
The first winter of the new rental era
As we head into the final quarter of 2026, I'm less interested in whether London's average rent rises another £20 or £30 next month than I am in what happens to the movement of tenants.
We've already seen the traditional summer lettings cycle change, with activity frontloaded into July and August and September becoming quieter largely because available stock had been exhausted. We've seen residents begin searching months earlier than they historically would have done, and we're now seeing an unusual number of notices that could result in substantially more properties being available during December.
Whether these developments represent temporary adjustments or the beginning of a more fundamental change in seasonal behaviour remains to be seen.
What I do know is that this is the first winter of the Renters' Rights Act era, and the market is already behaving differently from the one we've grown accustomed to over the past two decades.
The HomeLet data tells us that London rents remain at record levels, but it also highlights the increasingly varied performance of individual boroughs, the continuing pressure on affordability and the changing profile of the capital's rental population.
Our experience on the frontline adds another layer. We're seeing a market where quality is increasingly rewarded, where tenants are more informed and deliberate in their decisions, and where landlords are recognising that professional property management is becoming an essential part of successful long-term investment.
For those prepared to adapt, I remain enormously positive about London's private rented sector. This is still one of the world's great cities, with an extraordinary concentration of employment, education, culture and opportunity. People will continue to need homes here, and private landlords will continue to play a vital role in providing them.
But the rules of engagement are changing, and the winners over the next decade won't necessarily be those with the largest portfolios or the most aggressive rental ambitions. They'll be the ones who understand that quality, compliance, technology and genuinely good service are no longer optional extras. They're the foundations of a successful property investment.
And as for what happens this winter? Well, after more than two decades in London lettings, I'm rather looking forward to finding out.
About the author
Kristjan Byfield is the co-founder of base property specialists, an independent London lettings and property management agency established in 2004 and based in Shoreditch. Specialising in East London, the City Fringe and the wider capital, base combines detailed local market knowledge with a technology-led approach to residential lettings, compliance and property management.
Kristjan is also a founding member of Zoopla's Lettings Advisory Board, on which he has served since September 2021, and contributes regular market commentary to the HomeLet Rental Index.
Looking for a better way to manage your London rental property?
Whether you're an experienced portfolio landlord, a first-time investor or someone who has been managing a former home independently for years, understanding your property's true market position is only part of the equation.
At base property specialists, we combine detailed London rental market intelligence with comprehensive lettings, compliance and property management services, helping landlords protect their investments while delivering the quality of experience their residents deserve.
If you're questioning whether your current arrangements are delivering the returns, protection and service you should expect, we'd welcome the opportunity to review them with you.
Source: HomeLet Rental Index, September 2026, produced in conjunction with Dataloft by PriceHubble. Rental figures reflect achieved rents for new tenancies, using HomeLet's mix-adjusted methodology. Portfolio performance, operational observations and forward-looking predictions represent the views and experience of base property specialists.
