Buyers are returning. Their budgets are not.

The facts: Zoopla’s August House Price Index, published on 27 August, recorded buyer searches 7% higher than a year ago—the strongest annual increase for 12 months. Agreed sales remain 6% below last year, while buyers have 5% more homes to choose from. UK price growth slowed to 0.9%, London prices were 1% lower annually and flats and maisonettes fell 1.6% nationally.

Mark’s view: This is an autumn reopening, not an autumn boom.

More buyers searching is clearly positive, but an online search is not yet a viewing—and a viewing is not yet a proceedable offer. Buyers are returning to a market where they have more choice and less borrowing power.

The strategic mistake for sellers would be to interpret renewed activity as permission to overprice. September creates a valuable second launch window. It should be used to sharpen the campaign, reposition anything stale and meet buyers within their genuine search brackets.

Buyers should not assume that every seller is distressed. The best homes will attract the same returning audience simultaneously, which can create competition even within a softer overall market.

Mortgage rates have changed what “affordable” means

The facts: Zoopla estimates that average five-year mortgage rates have risen from below 4% in January to approximately 4.8%. That has reduced purchasing power by around 9%.

A buyer able to borrow £200,000 at the start of the year could now borrow approximately £182,000 for the same monthly payment. Buying the same property would require an additional deposit of around £18,200 nationally—and approximately £35,500 in London.

Moneyfacts’ leading low-loan-to-value products on 27 August included two- and five-year fixes around 4.47%–4.65%, but these involved restricted LTVs, product fees and individual eligibility requirements. Markets now expect the Bank of England to keep Bank Rate at 3.75% through 2026, with a full quarter-point increase not priced until February 2027. That is a market expectation, not a guarantee.

Mark’s view: The rate headline matters less than the affordability calculation underneath it.

A buyer who was comfortable at £1 million in January may not be the same £1 million buyer today. That is why fall-through risk and down-valuations can appear even when demand looks healthier.

Sellers should establish how an offer is funded before psychologically spending it. Buyers should update their agreement in principle before September viewings—not after finding the house.

Housing policy is shifting toward supply—but delivery is the test

The facts: The Government announced the first £9.6 billion allocation from its £39 billion Social and Affordable Homes Programme on 24 August. The wider ten-year programme targets 300,000 homes, with at least 60% intended for social rent.

London is expected to receive at least £6 billion through its separate programme. Councils and mayoral authorities will have a greater role in allocating and delivering the homes.

Mark’s view: The scale is serious, but funding announcements do not immediately become front doors.

London’s constraint is not simply a shortage of ambition. It is land, planning, construction costs, infrastructure and delivery capacity. The programme could materially improve rental security and affordable supply, but it will not resolve London’s housing imbalance in the next selling season.

The more immediate political risk for the private market remains uncertainty. Buyers and sellers can adapt to clear rules; they struggle to act around repeatedly floated changes to property taxation and ownership costs.

A significant win for flat owners

The facts: On 27 August, the Supreme Court ruled in favour of leaseholders at Cresta Court in west London seeking the Right to Manage their building.

The court decided that failing to serve one qualifying leaseholder with a participation notice did not automatically defeat the claim. The procedural requirements still apply, but the freeholder could not use that omission alone to block the residents’ entitlement.

Mark’s view: This does not repair the entire leasehold system, but it removes one technical weapon that could be used against leaseholders.

That matters commercially. Buyers increasingly treat the management of a building as part of the asset itself. Service charges, planned works and the responsiveness of the managing agent can now influence value almost as much as the kitchen or view.

A well-run share-of-freehold or resident-managed building should make that advantage obvious in its marketing. A seller who cannot explain the building’s finances and management is asking the buyer to price an unknown risk.

Prime Central London: cash-rich does not mean price-blind

The facts: No credible new street-level dataset specifically covering Chelsea, Belgravia and Notting Hill was released this week. The strongest new London evidence is therefore the 1% annual fall in prices, the £35,500 additional deposit requirement and the 5% annual increase in available stock reported by Zoopla.

Mark’s view: Prime Central London will experience the autumn return unevenly.

In Notting Hill, the right family house can bring several returning buyers into conflict because supply at the top end is structurally limited. Apartments and compromised layouts face a much harder comparison process.

In Chelsea, turnkey houses and best-in-class flats can still outperform, but ordinary stock must compete on price. Buyers are scrutinising service charges, leases and future capital expenditure before judging the finish.

In Belgravia, mortgage affordability is less dominant, but the cost of capital still matters. A cash buyer is not an irrational buyer. At this level, buyers are comparing London property with every other investment and jurisdiction available to them.

September’s opportunity is therefore not to “test” an inflated figure. It is to bring a property to market with sufficient precision that a returning buyer immediately understands why it deserves attention.

South West London: the family deadline returns

The facts: This week produced no robust new borough-level release for South West London. The relevant fresh national evidence shows improving search activity alongside weaker purchasing power, more available stock and continued underperformance by flats.

Mark’s view: September should benefit South West London because its market is strongly needs-driven.

Families return from summer with decisions about schools, bedrooms, gardens and commuting unresolved. That creates motivation—but not unlimited budgets.

Across Fulham, Putney, Wandsworth, Clapham and Streatham, a strong family house can still create urgency. The weaker category remains the flat carrying unexplained service charges, an approaching lease issue or pricing inherited from a stronger market.

There is also a simple portal-search problem. A property at £675,000 may be invisible to the buyer searching to £650,000, even if that buyer could stretch. Correct bracket placement is now part of the marketing strategy, not merely a valuation decision.

Key takeaway

September will produce more buyers—but not restore the borrowing power they have lost.

The sellers most likely to benefit are those who use the returning demand to create momentum at a credible price. The buyers most likely to succeed are those who have recalculated their finances and can act decisively when the right property appears.

Activity is returning. Pricing discipline still decides who converts it.