Greater London is one of the UK’s most diverse and expensive housing markets, covering everything from central apartments and Victorian terraces to suburban semi-detached homes and large detached houses. That diversity makes simple headlines dangerous. The latest UK House Price Index puts the average London property at about £550,000 in July 2026, down 3.3% from a year earlier. A separate HM Land Registry completed-sales median for the Greater London county boundary shows a 2026 year-to-date median of about £495,000, compared with £492,000 in 2021. In other words, the five-year median is almost flat in nominal terms even though individual boroughs and property types have moved very differently. The distinction between average and median is important: the average can be pulled upwards by expensive transactions, while the median is the middle completed sale.
What Greater London looks like as a housing market
Greater London is not one uniform property market. Inner London contains a large concentration of flats, mansion blocks, converted period properties and high-value central homes. Outer London has more terraced, semi-detached and detached housing, often serving family buyers who want more space while retaining access to the capital’s transport and employment network.
This mixed stock explains why the London average can move differently from the median. A small number of very expensive central transactions can have a large effect on the mean, while the median is less sensitive to extreme prices. For estate agents and buyers, both measures are useful but they answer different questions.
The latest official UK HPI figure for July 2026 gives London an average price of about £550,000. That was 3.3% below July 2025. At the same time, borough-level results were highly uneven. Some outer boroughs recorded modest gains while several central and high-value boroughs showed much larger annual falls.
The advantage of London is depth of demand. It has a large owner-occupier market, rental market, international buyer base and a huge employment catchment. The disadvantage is affordability. Mortgage costs, stamp duty and service charges can make even apparently small price changes commercially important.
That is why London should be analysed by geography and property type rather than through one headline figure.
How the 2026 median compares with 2021
HM Land Registry Price Paid Data derivatives for the Greater London county boundary put the 2026 year-to-date median sold price at about £495,000. The equivalent 2021 median was about £492,000. That is a nominal increase of only around 0.6% over roughly five years.
This is striking because 2021 sat in a very different financing environment. Mortgage rates were much lower, the post-pandemic market was unusually active and buyers were reassessing how much space they wanted. By 2026, higher borrowing costs had changed affordability calculations and reduced the amount many buyers could comfortably finance.
The five-year comparison therefore shows that London has not behaved like some lower-priced regional markets where medians rose more strongly. It also illustrates why a property owner should not assume that a national house-price headline applies directly to the capital.
The advantage for some 2026 buyers is that London’s weaker performance has reduced the risk of chasing a rapidly rising market. The disadvantage for sellers is that nominal values may have made little progress in five years, and in real terms after inflation the picture is weaker still.
Recent 2026 median data also needs caution because the year is incomplete and Land Registry records arrive with a lag. The correct interpretation is that the current registered-sales median is around £495,000, not that every London property is worth that amount.
Which property types are most active in London
The current completed-sales dataset shows flats and maisonettes as the largest transaction category in Greater London. Around 16,087 flat or maisonette sales are recorded in the current 2026 dataset, compared with about 9,370 terraced homes, 5,043 semi-detached homes and 1,386 detached homes.
That means flats are the most-sold property type in this dataset. This is a genuine popularity measure based on transaction volume, not an assumption based on price.
Current median sold prices also show the wide price ladder between housing types: about £400,000 for flats, £540,000 for terraced homes, £610,000 for semi-detached properties and £840,000 for detached homes.
Official July 2026 UK HPI averages tell a similar story at a different statistical level. Flats and maisonettes averaged roughly £424,000, terraced homes £642,000, semi-detached homes £724,000 and detached properties about £1.168 million.
The flat segment is especially important because it has been the weakest recent performer. London flats were down about 6.6% year on year in the July 2026 HPI data. Detached homes, by contrast, were slightly higher year on year.
The advantage of flats is entry price and location. They often give first-time buyers access to London at lower absolute prices. The disadvantage can be service charges, leasehold complexity and weaker price momentum when buyers favour more space.
Why houses and flats are behaving differently
London’s property types respond differently to borrowing costs and lifestyle preferences. Flats are generally cheaper, but service charges and leasehold obligations add to the monthly cost. In some developments, service-charge inflation can offset the apparent affordability advantage of a lower purchase price.
Houses are more expensive but offer space, gardens and usually simpler ownership structures. Since the pandemic, many buyers have continued to value extra internal and external space, particularly in outer London where transport links still allow commuting.
The advantage of terraced and semi-detached homes is that they sit between flats and detached houses in both price and space. They can therefore attract family buyers who cannot afford prime detached stock.
The disadvantage is that London houses remain expensive in absolute terms. Even if a semi-detached home performs better than a flat, the deposit and mortgage requirement can be far beyond the reach of many households.
For investors, the flat market can still be attractive where rental demand is deep, but gross yield should not be considered without service charges, maintenance, lease length and financing costs. For owner-occupiers, the decision is more about long-term suitability than short-term percentage growth.
What buyers, sellers and agents should take from the five-year picture
The clearest message is that Greater London has been broadly flat on a five-year nominal median basis. The current registered-sales median of about £495,000 is only slightly above the 2021 figure of £492,000, while the July 2026 official average of about £550,000 is lower than a year earlier.
That does not mean every part of London has stagnated. Borough, street, property condition, tenure and building quality can create large differences. A well-located family house can behave very differently from a high-service-charge flat in a development with many similar units.
For buyers, the advantage of a softer market is greater negotiating room. For sellers, realistic pricing matters more because buyers can compare many alternatives and financing remains expensive.
For estate agents, the practical lesson is to use completed local comparables and property-type evidence rather than relying on London-wide averages. Median and mean should be labelled correctly, and current registration lags should be explained.
London remains a huge and liquid market, but the data shows that the last five years have not delivered uniform capital growth. The most useful conclusion is therefore not that London is “up” or “down”, but that flats dominate transaction volume, houses have held up better recently, and the five-year median has moved very little.
Sources: UK House Price Index, July 2026; HM Land Registry Price Paid Data-derived Greater London completed-sales statistics.