Prime Central London's First Quarterly Price Rise in Four Years: What Sellers Should Do Before the Budget

📊 MARKET INSIGHT · 9 October 2026 · 7 min read · Hiten Arya, Director

For four years, the headline in prime central London has been the same: prices drifting lower. This month, that changed – narrowly, but measurably. Knight Frank’s September index shows prime central London (PCL) prices rose 0.3% over the quarter, the first quarterly increase in four years.

It is a small number. It is also exactly the kind of turn that owners who have been waiting should take seriously. Here is what the data says, what it does not say, and how to approach a sale in the weeks before the Chancellor’s Budget on 28 October.

What the latest figures actually show

Knight Frank’s data, published on 2 October 2026, gives a measured picture rather than a boom:

• PCL prices rose 0.3% in the September quarter, the first quarterly rise in four years.
• Over the year, PCL prices are still down 2% – but that is the smallest annual decline in 18 months.
• Average PCL prices remain around 22% below their August 2015 peak.
• Exchanges across prime central and prime outer London were down 2.5% in the year to September, compared with a 14% fall in March.
• At the very top, 121 homes above £10m changed hands in the year to September – level with the previous year – but total spend rose 14% to £2.4bn.

In short: the market has stopped getting worse, and the top end is already spending more. Knight Frank’s head of London sales, Liza-Jane Kelly, notes that sellers are becoming more realistic on price while buyers, some of whom have been renting, are sensing value after a decade of declines.

Why “stable” is the word that matters

After years of falling values, stability is itself a signal. Buyers who have sat on the sidelines are re-engaging, and they are doing so at prices that have been reset. In my 40+ years in this market, the turning point is rarely announced by a dramatic jump. It arrives as a quiet change in tone: fewer withdrawn properties, more genuine viewings, and offers that finally meet realistic asking prices.

That is why pricing discipline matters more than ever. Homes priced to the current market are transacting; homes priced to a 2015 memory are not. If you have been waiting for the market to “come back” to an old figure, the evidence suggests the market is turning – but around today’s values, not yesterday’s.

The calendar risk: 28 October and beyond

Two dates sit over the market. The Budget is on 28 October, and the US mid-term elections follow on 3 November. Mortgage rates have also risen again since mid-September, a reminder that financing costs can move quickly.

On tax, it is important to separate what is confirmed from what is speculation:

• Confirmed: a High Value Council Tax Surcharge on English homes worth over £2m from April 2028, with annual charges of £2,500 to £7,500 depending on value.
• Not confirmed: talk of aligning Capital Gains Tax with income tax rates, or lowering the £2m surcharge threshold. These are reports and political comments, not policy.

My advice is consistent: do not make a sale – or a purchase – on rumour alone, but do make sure you have a plan before the Budget, so that you can act on facts rather than react to headlines. Take tax advice specific to your circumstances.

Selling discreetly: the off-market option

For many owners, the question is not simply when to sell but how. A public listing on the portals puts your address, your asking price and your time on market in front of everyone – including neighbours, staff and future buyers who will read a long listing as weakness.

A discreet off-market sale avoids that. We introduce your property privately to a vetted network of qualified buyers and investors, with no public price history and full control over who sees what. It will not suit every property, but where privacy matters, or where a reduction on a public listing would damage your negotiating position, it is often the stronger route. Every approach is principal-led: you deal with me directly, not a rota of junior negotiators.

Own an HMO? The timing question is sharper

If you hold a house in multiple occupation, regulation has moved the goalposts: licensing obligations, Article 4 planning controls and tighter lender underwriting all bear on value and on what a buyer can finance. Licences do not transfer on sale, so the buyer’s position needs to be handled carefully from the start. As specialists in HMO sales, we know which investors are actively buying, what they will pay for, and how to present your asset – licences, compliance and income – so that value is protected. If you are weighing a sale against another round of compliance spend, a candid conversation early is worth far more than a rushed decision later.

What I would do now if I were selling

• Get an honest valuation. Evidence-based, not flattering. Price to the market that exists.
• Decide open market or off-market. Each has a place; the choice should follow your priorities on price, privacy and speed.
• Have your documents ready. Title, leases, licences, compliance certificates and tax position – ready before a buyer asks.
• Plan around the Budget, not in fear of it. Know your options before 28 October so you are not forced to decide under pressure.

I don’t make excuses. I make results – and that begins with telling you plainly what the market is doing.

Sources: Knight Frank Research, “No news has been good news for the prime London market”, 2 October 2026; BKL, “Property and other taxes: where things stand ahead of Autumn Budget 2026”. This article is general information, not tax or financial advice.