House prices in the most exclusive Central London postcodes have endured what can only be described as a lost decade. Land Registry data shows house prices here have, for the most part, been fairly flat, managing growth of around 5% over the past ten years. Values are below where they were in 2016 and after taking into account inflation, prices have seen a 25%-30% fall in real terms.
This isn't market volatility; rather, it represents a fundamental recalibration of one of the world's most prestigious markets. The price gap, which once separated Prime Central London (PCL) from prime suburbs, has been steadily eroded over the last decade. The PCL premium has contracted by 31% for flats and 55% for houses when measured against areas such as Richmond, Fulham, Highgate, and Putney. The exclusivity premium that justified big price tags has halved.
The Seller's Dilemma
For those looking to test current market conditions, the financial arithmetic presents a mixed picture. Most are still sitting on hefty increases in value, which were accumulated prior to 2015. The average seller in PCL this year has seen the value of their property increase by £599,000 since purchase, or 66% in percentage terms. However, this figure also marks the first time since 2012 that the average uplift has dipped below £600,000.
But these gains haven’t been equally shared. Sellers who bought more recently have tended to see much less house price growth. Around one in four (24%) of sellers this year sold their property for less than they originally paid, up from 7% for those who cashed in back in 2015. In particular, anyone who bought after higher stamp duty rates were introduced in 2014 and 2016, and before the market re-adjusted, is among the most likely to get back less for their home than they paid for it. Meanwhile, those who bought more recently, typically at lower prices, are more likely to stay in the black.
The Great Standoff
These challenging conditions have created a standoff. Since 2015, PCL homeowners have been 61% less likely to sell than the average person in England and Wales. This reluctance reflects the fundamentally loss-averse nature of property owners who prefer to wait rather than crystallise losses. Nationally, more 2025 sellers purchased during 2021 than in any other year, while for PCL, 2014 purchases were most typical.
The PCL market demonstrates that smaller short-term falls in house price growth don’t have a significant impact on the behaviour of buyers and sellers. Rather, it’s when price growth stalls or declines over what is a typical ownership period of around ten years, housing transactions tend to drop sharply. This can create a self-perpetuating cycle of stagnation.
Future Remedies
There is little coincidence that house prices peaked immediately after the introduction of current stamp duty rates in 2014, which was followed by the second home surcharge (then 3%) in early 2016. This meant the stamp duty on a £5m purchase rose from £350,000 to £513,000, or £763,000 if the buyer isn’t replacing their primary residence (which is fairly common in prime markets).
These figures represent a dramatic escalation from the late 1990s when stamp duty rates stood at just 1% over £60,000 (compared to 12%-17% above £1.5m today). The tax burden has fundamentally altered the investment proposition for PCL property and the potential for future price growth.
However, recent kite flying from the Treasury on the potential replacement of stamp duty with an annual tax on a property’s value could potentially revitalise activity in Prime London. A well-designed replacement for stamp duty, with recognition for stamp duty bills that have already been paid, and that only begins raising revenue after 10+ years of ownership, could restore some liquidity.
Our analysis shows that for a £5m purchase, it would take around 21 years for the cost of a 0.5% annual property tax to outweigh the current regular stamp duty rates. Or just over 30 years if the surcharge is applied. This would slash the amount of cash buyers need to hand over upfront and spread payments over a much longer period.
In prime markets, a review of stamp duty would suggest elevated headline tax rates on high-value purchases have suppressed activity in the market, making it likely that government revenue is no longer being maximised. Stamp duty revenues would almost certainly be higher if headline rates were lower, as more people would move home.
A shift towards an annual property tax levied on the value of a home, as a replacement for stamp duty, could, in the long term, raise more revenue while also reducing what has become an increasingly unassailable burden on buyers.
