True cost of buying vs renting in London (2026)
The hardest cost-of-living arithmetic in the UK plays out here: 32 boroughs, council-tax Band D rates that vary 2.5× across the city, and a 2025 sale-price spread from £386,024 in Barking and Dagenham to £2.1 million in Westminster. Working out when buying beats renting in London takes the average sale price, the Bank of England's current quoted mortgage rate, the borough's Band D charge, and a clear-eyed view of how stamp duty changes the maths above £500,000.
This piece pulls the numbers together. It does not — and cannot — tell you what to do. Speak to a qualified adviser before acting.
What London actually traded for in 2025
HM Land Registry's Price Paid data for 2025 (extracted 13 May 2026) shows 93,312 residential sales across the 32 boroughs plus the City of London. The London-wide average price was £723,370. The range across boroughs is wide enough to make a single "London average" almost useless for buyer planning:
| Borough | 2025 sales | Average sale price | Band D 2026-27 |
|---|---|---|---|
| Barking and Dagenham | 1,624 | £386,024 | £2,198.51 |
| Bexley | 3,052 | £463,141 | £2,366.36 |
| Newham | 2,448 | £475,947 | £1,944.23 |
| Havering | 3,451 | £475,370 | £2,424.66 |
| Croydon | 4,613 | £485,388 | £2,599.91 |
| Sutton | 2,490 | £516,563 | £2,378.64 |
| Greenwich | 2,948 | £536,122 | £2,107.86 |
| Enfield | 3,111 | £537,243 | £2,267.67 |
| Redbridge | 2,658 | £547,290 | £2,294.58 |
| Lewisham | 3,388 | £547,615 | £2,237.33 |
| Hillingdon | 2,990 | £553,178 | £2,045.46 |
| Waltham Forest | 3,181 | £560,483 | £2,386.96 |
| Harrow | 2,047 | £580,064 | £2,511.07 |
| Bromley | 4,562 | £598,275 | £2,140.04 |
| Tower Hamlets | 2,910 | £601,731 | £1,837.78 |
| Brent | 2,530 | £646,268 | £2,235.27 |
| Hounslow | 2,330 | £657,384 | £2,185.56 |
| Kingston upon Thames | 2,084 | £669,588 | £2,609.20 |
| Lambeth | 3,894 | £680,256 | £2,047.11 |
| Ealing | 3,218 | £682,079 | £2,138.53 |
| Hackney | 2,483 | £697,757 | £2,060.30 |
| Barnet | 4,098 | £707,721 | £2,132.60 |
| Haringey | 2,691 | £729,313 | £2,313.78 |
| Southwark | 3,190 | £752,579 | £1,967.26 |
| Merton | 2,487 | £754,845 | £2,146.76 |
| Wandsworth | 4,970 | £832,198 | £1,028.21 |
| Richmond upon Thames | 2,721 | £898,110 | £2,486.10 |
| Islington | 2,083 | £901,757 | £2,108.15 |
| Hammersmith and Fulham | 2,353 | £986,657 | £1,519.51 |
| Camden | 2,145 | £1,334,277 | £2,207.55 |
| Kensington and Chelsea | 1,836 | £2,025,271 | £1,666.65 |
| Westminster | 2,529 | £2,098,124 | £1,049.55 |
| City of London | 197 | £2,616,822 | £1,329.56 |
Source: HM Land Registry pp-complete file, sales completed 1 Jan to 31 Dec 2025; gov.uk council tax Band D averages 2026-27.
Five boroughs — Barking and Dagenham, Bexley, Newham, Havering, Croydon — still averaged under £500,000 in 2025. That matters because £500,000 is the cap above which first-time-buyer stamp duty relief disappears entirely, and £300,000 is the threshold above which it tapers (HMRC, 2026).
The monthly cost of owning the London average
The Bank of England's most recent quoted rate for a 75% loan-to-value 5-year fix is 4.32% (BoE 75LTV5Y series, April 2026 release; down from 4.62% in May 2025). At that rate, a 25-year repayment mortgage on the London average sale price (£723,370) breaks down like this for a buyer putting down a 25% deposit (£180,842, borrowing £542,528):
| Line item | Monthly | Annual |
|---|---|---|
| Mortgage (25yr repayment, 4.32%) | £2,960 | £35,520 |
| Council tax (Band D average across London 33 LAs) | ~£174 | £2,094 |
| Buildings & contents insurance (typical) | £30-50 | £360-600 |
| Service charge & maintenance (1% of price/yr rule-of-thumb) | £600 | £7,200 |
| Energy (UK average, EPC C semi) | £125 | £1,500 |
| Indicative total | ~£3,889-3,909 | ~£46,674-46,914 |
The deposit and stamp duty are one-off. On the same £723,370 purchase, HMRC's slabs give £26,168 in stamp duty for a non-first-time-buyer main residence — and the same £26,168 for a first-time buyer (relief is lost above £500,000). An additional-property purchase (second home or buy-to-let) at the same price pays £62,337 with the 5% surcharge layered on top.
That's £207,010 of cash gone on day one (deposit + SDLT) before the first mortgage payment leaves the account.
Borough-level cost of owning: cheapest first
At the same financing assumption (75% LTV, 25-year repayment, 4.32%), here is the monthly cost-of-owning shape across the more affordable half of London. Mortgage figures use the borough's 2025 average sale price; council tax is the 2026-27 Band D divided by 12.
| Borough | Avg price | Mortgage £/mo | CT £/mo | Subtotal £/mo |
|---|---|---|---|---|
| Barking and Dagenham | £386,024 | £1,580 | £183 | £1,763 |
| Bexley | £463,141 | £1,895 | £197 | £2,093 |
| Newham | £475,947 | £1,948 | £162 | £2,110 |
| Croydon | £485,388 | £1,986 | £217 | £2,203 |
| Greenwich | £536,122 | £2,194 | £176 | £2,370 |
| Waltham Forest | £560,483 | £2,294 | £199 | £2,493 |
| Tower Hamlets | £601,731 | £2,463 | £153 | £2,616 |
| Lambeth | £680,256 | £2,784 | £171 | £2,955 |
| Wandsworth | £832,198 | £3,406 | £86 | £3,491 |
| Camden | £1,334,277 | £5,461 | £184 | £5,645 |
A few things jump out:
- Wandsworth's council tax distorts the ranking. Wandsworth charges £1,028.21 Band D — England's cheapest LA full stop, lower than Westminster (£1,049.55) and roughly 2.5× lower than Kingston upon Thames (£2,609.20) two boroughs to the south-west. Across a 25-year mortgage, that's a nominal gap of £33,000-£40,000 in council tax alone between adjacent boroughs in identical property bands.
- Above the £500,000 first-time-buyer cap, ownership becomes a different game. Below Greenwich's £536k average, a first-time buyer pays partial SDLT relief; above it, full standard SDLT applies. That's why the cluster of "FTB-affordable London boroughs" effectively ends at Newham/Havering/Croydon/Bexley/Barking and Dagenham on 2025 averages.
- The City of London's £2.6 million average is a thin sample — 197 sales, predominantly leasehold flats in luxury blocks. It is not representative of "buying in central London" in any normal sense.
Stamp duty across the London ladder
Three HMRC slab calculations for representative borough averages, with the rules as of 2026:
| Sale price | Standard SDLT | FTB SDLT (relief if ≤ £500k) | Additional (5% surcharge) |
|---|---|---|---|
| £386,024 (Barking & Dagenham) | £9,301 | £4,301 | £28,602 |
| £475,947 (Newham) | £13,797 | £8,797 | £37,595 |
| £536,122 (Greenwich) | £16,806 | £16,806 (no relief) | £43,612 |
| £680,256 (Lambeth) | £24,013 | £24,013 | £58,026 |
| £723,370 (London average) | £26,168 | £26,168 | £62,337 |
| £832,198 (Wandsworth) | £31,610 | £31,610 | £73,220 |
| £1,334,277 (Camden) | £77,178 | £77,178 | £143,892 |
| £2,098,124 (Westminster) | £165,525 | £165,525 | £270,431 |
First-time-buyer relief is a £5,000 saving up to £500,000 and zero saving above it. For a first-time buyer in Lambeth or Hackney on 2025 averages, full standard SDLT is owed — relief was designed for the £125k-£500k bracket, which captures only the cheapest five London boroughs at current averages.
The 5% additional-property surcharge (effective from October 2024) almost doubles the SDLT bill at every London price point. At London average it's a £36,000 jump — material to any buy-to-let cost-of-entry calculation.
Where buying might overtake renting
The Office for National Statistics publishes monthly London rent figures via the Price Index of Private Rents and quarterly borough-level rent data via Private rental market summary statistics in England. London rents have risen well above the UK average for several consecutive years (ONS PIPR, 2024-2026).
Rather than fix a rent figure that varies enormously by borough and bedroom count, the framework below lets you do the maths from your own rent. Three forces decide when buying beats renting:
1. Mortgage interest vs equivalent rent. Across the first year of a 4.32%, 25-year repayment loan on £542,528 (75% of the London average), the borrower pays roughly £23,200 in interest and £12,300 in principal (year-one totals; principal share rises every subsequent year). Only the interest portion is truly "lost" — the principal is forced saving.
2. Council tax and running costs that renters also pay. A London Band D averages around £174/month and is paid by both renters and owners. It doesn't move the buy/rent comparison.
3. Capital appreciation or depreciation. UK HPI shows London at 97.1 in January 2026 vs 98.8 in January 2025 — a 1.7% nominal fall against the wider England index, which rose 1.1% over the same period (ONS UK HPI, January 2026 release). Over 25 years the picture has been very different — the UK House Price Index for London has roughly tripled since 1995 — but the past five years have been flatter than the previous two decades.
A rough breakeven heuristic, year by year:
| Owning year | Cash outlay (deposit + SDLT) recouped via principal repayment + capital change of | Reaches typical rent total if HPI grows... |
|---|---|---|
| Year 5 | ~£94,000 of principal repaid + capital change | -0.5% / yr |
| Year 10 | ~£204,000 of principal repaid + capital change | 0% / yr |
| Year 15 | ~£333,000 of principal repaid + capital change | 1% / yr |
The figures above are illustrative, anchored to the £542,528 borrowed at 4.32% over 25 years. A first-year remortgage shock (rates +1pp would lift monthly costs ~10.6%, +2pp ~21.7%) changes the comparison materially.
This is general information. Your situation — credit profile, deposit size, target borough, intended length of stay, dependants — changes every line above. Speak to a qualified mortgage broker and an independent financial adviser before acting on any of it.
Three practical anchors
- Time horizon under 5 years: the friction costs of buying — SDLT (£26k at London average), conveyancing (£1,500-£3,000), survey (£400-£1,200), agent fees on the eventual sale (typically 1-2% + VAT) — rarely amortise. Renting often wins on a strict cash-cost basis. The exception is sustained capital growth on the specific property bought.
- Time horizon 10-15 years: principal repayment alone replaces a meaningful share of rent paid over the same period at current rates, even before capital appreciation is considered.
- Time horizon 25 years: this is the headline length of most repayment mortgages. The cumulative numbers are dominated by long-run rate path and capital appreciation assumptions, both of which are uncertain.
Try the calculator
Plug in a specific postcode you're researching — look up a property in SW18 1AA (Wandsworth Town) or any London postcode — and the Homecost True Cost calculation will pull the EPC-verified floor area, the borough-specific Band D, and the mortgage payment at the current BoE quoted rate. For the wider context across the country, the UK-wide buying vs renting analysis covers the picture outside London, and the £750k true-cost piece drills into the inner-south-London bracket. Buyers in the £300-500k band should also read the first-time-buyer stamp duty relief explainer — the £500,000 cliff is unforgiving.
Browse more cost-intelligence pieces for the broader index.
Based on 93,312 Land Registry transactions across the 32 London boroughs plus the City of London in 2025, joined to gov.uk 2026-27 council tax Band D data and the Bank of England's 75% LTV 5-year fixed quoted rate of 4.32% (April 2026 release).
This is general information, not personal advice. Tax and mortgage rules change; individual circumstances differ. Speak to a qualified adviser before acting.