Central London flat market 2026: prices, energy and council tax

In 2026 the flat is not a niche corner of London's housing market — it is the market. Of the 78,876 standard residential sales recorded across the capital's 33 boroughs in 2025, 40,121 were flats (HM Land Registry price-paid data). That is 50.9% — an outright majority, and a far higher share than any other major English city, where flats range from 13% of sales in Leeds to 36% in Manchester.

Across the seven inner boroughs that form London's central core — the City of London, Westminster, Camden, Islington, Tower Hamlets, Southwark and Lambeth — flats accounted for 11,695 sales in 2025 at a median price of £530,000. That sits about 20% above the £440,000 median for flats London-wide and reflects the concentration of higher-value apartment stock in zones 1 and 2.

This guide sets out what those numbers look like borough by borough, what they mean for stamp duty and monthly costs, and two findings specific to central London: a council-tax inversion in which the most expensive flats to buy sit in the cheapest-taxed boroughs, and an energy-efficiency picture that is greener than the surrounding stock but by a narrower margin than other cities.

A note on method: every figure below is a median, share or distribution drawn from recorded transactions and energy certificates. We report what was paid, never what an individual property is worth.

Central London flat prices by borough

Source: HM Land Registry price-paid data, standard residential sales (category A) coded as flats/maisonettes, calendar year 2025. Data fetched 20 June 2026.

The ladder reads as two tiers. Prime west — Westminster (£800,000) and the City of London (£780,000) — plus Camden (£680,000) sit well clear of the rest. The river boroughs and the east — Islington, Tower Hamlets, Lambeth and Southwark — cluster between £460,000 and £575,250. Just outside the seven-borough core, the adjacent inner-east borough of Hackney recorded 1,651 flat sales at a £527,000 median.

Tower Hamlets, which contains Canary Wharf and a large share of London's new-build apartment towers, recorded the most flat sales of any inner borough (2,273) at a £475,000 median. Means run far above medians in the prime boroughs — Westminster's mean flat price was £1,264,437 against its £800,000 median — because a thin top tail of multi-million-pound apartments lifts the average. The median is the better guide to a typical sale. To see the all-in monthly cost for properties on a specific central street, you can search any postcode — for example a central Southwark postcode on the Homecost cost tool.

Almost every central flat is leasehold

Of the 11,695 central-core flats sold in 2025, 11,601 (99.2%) were leasehold — only 94 changed hands as freehold, typically share-of-freehold arrangements. Leasehold brings costs that do not appear in the headline price: ground rent, service charges and, on older blocks, major-works contributions. New-build and recently converted blocks in particular can carry service charges of several thousand pounds a year; our guide to typical new-build service charges sets out the ranges.

The typical central flat is also compact. The median floor area on energy certificates for central-core flats is 59.6 m² (about 640 sq ft) — a one- to two-bedroom footprint.

The £500,000 first-time-buyer cliff

At £530,000, the central-core flat median sits above the £500,000 ceiling for first-time-buyer stamp duty relief — and that matters more in London than anywhere else we have measured.

First-time-buyer relief in England charges no Stamp Duty Land Tax (SDLT) up to £300,000 and a reduced rate on the slice to £500,000, but only where the price is £500,000 or below. One pound over the ceiling and the relief disappears entirely: the buyer pays the standard rates on the whole price (HMRC, 2026).

On a £530,000 flat the standard SDLT bill works out as:

That £16,500 — an effective rate of 3.11% — is what a first-time buyer pays too, because the relief is unavailable above £500,000. A buyer of an additional property, such as a second home or buy-to-let, pays a further 5% surcharge on the full price (£26,500), for a total of £43,000. You can run any price and buyer type through the Homecost stamp duty calculator.

The contrast with other city centres is sharp. In Bristol's central flat market, where the median is £311,250, a first-time buyer still receives partial relief, and in the northern city centres covered by our Manchester city-centre flat guide the typical central flat falls below £300,000 and attracts no stamp duty at all. London's flat median is the only one that pushes a typical first-time buyer past the relief ceiling — a point also visible in our pillar piece on the true cost of buying a £500,000 home.

Monthly cost at the median

At the £530,000 median, a buyer with a 25% deposit (£132,500) borrowing £397,500 over 25 years at the Bank of England's most recent quoted 75% loan-to-value five-year fixed rate of 4.32% (April 2026) would pay approximately £2,169 a month in mortgage repayments, before council tax, energy, service charges and insurance. Your own rate will depend on your lender, deposit and credit profile. You can try different figures on the Homecost mortgage calculator.

The council-tax inversion

Here is where central London breaks the national pattern. The boroughs with the most expensive flats to buy include the cheapest places in the country to be taxed.

Source: gov.uk council tax levels by billing authority, 2026-27 (figures include the Greater London Authority precept).

Westminster — home to the dearest flats in the capital at an £800,000 median — levies the lowest Band D council tax in England at £1,049.55 for 2026-27. The City of London (£1,329.56) is the second-cheapest. At the other end of the same central core, Camden charges £2,207.55 — 2.1 times Westminster's figure — for a Band D home. So the cheapest boroughs to be taxed in (Westminster, the City) are also the priciest to buy into, an inversion of the usual rule that dear areas cost more on every line.

This "dearest-to-buy, cheapest-to-run" pattern echoes one we found outside London in our Leeds price guide, where the priciest part of the county levied the cheapest council tax — but Westminster is the starkest example in the dataset. Band D is a benchmark only; the actual bill depends on a property's valuation band, and central flats span the full A–H range.

Energy: greener than the city, but the narrowest gap

Central London's flat stock is more energy-efficient than the housing around it — but by less than in other cities. 51.6% of central-core flats are rated EPC band C or above, against 37.3% of all central-core homes. Across London as a whole the gap is wider still: 47.2% of flats are C-or-above versus 28.6% of all domestic property — an 18.6 percentage-point premium for flats.

That 18.6-point gap is the narrowest of the five city centres we have measured:

The reason is the make-up of London's flat stock. Alongside 21st-century apartment towers, the capital holds a vast inventory of Victorian and Georgian period conversions — handsome, but hard to insulate — which pulls the flat average down. In cities where the apartment stock is overwhelmingly modern, the green premium is wider. The direction, though, is universal: in every city we measured, flats are greener than the surrounding stock, because the apartment-building boom is largely a modern-construction phenomenon.

A caveat on energy data: an EPC band reflects a building's modelled efficiency, not a current bill. The modelled running-cost figures on certificates rest on dated assumptions and should not be read as today's energy costs; it is the band-to-band comparison that is directional.

How central London compares with other city centres

London is in a different league on price, and the comparison comes with one caveat: London's "central core" here is defined at borough level (the seven inner boroughs), a much wider area than the handful of central postcode districts used for the other cities. Even allowing for that, the direction is unambiguous — on this measure the cheapest way into a major English city centre by flat is Leeds, at a £170,000 median, and the most expensive by a wide margin is inner London.

The wider London backdrop

The Land Registry's UK House Price Index for London stood at 95.0 in March 2026, down from 97.0 a year earlier — a fall of about 2% over the year, against a broadly flat UK index (102.8, up 0.1% on the year) (ONS / HM Land Registry UK HPI, March 2026 release). The central flat median above is a level for 2025 sales rather than a year-on-year movement: central-core flats had a new-build share of 11.7% in 2024, and registration lag makes the 2025 share (5.5%) an undercount, so we treat the median as a snapshot, not a trend.

See the figures for your own search

Type any London postcode into the Homecost cost tool to see the all-in monthly cost — mortgage, council tax and energy — for properties on that street, or compare areas through our regional price guides. For the capital-wide picture across all property types, see the average house price across London.

This is general information, not financial, tax or legal advice. Speak to a qualified adviser before acting.