London vs Cardiff: Cost of Living Comparison (2026)
Updated June 2026 · ONS data · HMRC 2026/27 rates
London
Cardiff
See the Difference on Your Salary
Enter your salary to see the estimated monthly difference between London and Cardiff.
Full Cost Breakdown
Average monthly costs for a single person in each city (ONS data, April 2026):
| Cost | London | Cardiff | Difference |
|---|---|---|---|
| Rent (1 bed avg) | £2,100 | £1,000 | £1,100 cheaper in Cardiff |
| Council Tax (est.) | £150 | £110 | £40 cheaper in Cardiff |
| Transport | £180 | £70 | £110 cheaper in Cardiff |
| Gas & Electricity | £137 | £137 | Same |
| Water | £92 | £58 | £34 cheaper in Cardiff |
| Broadband | £36 | £36 | Same |
| Food (average) | £280 | £280 | Same |
| Total monthly costs | £2,975 | £1,691 | £1,284 lower in Cardiff |
Rent: ONS Private Rental Market Survey, April 2026. Energy: Ofgem price cap April 2026. Council tax and water are estimated averages.
Buying a Home: London vs Cardiff
House prices from ONS UK House Price Index, March 2026. Stamp duty calculated using current SDLT rates for first-time buyers in England. Scottish and Welsh properties use LBTT and LTT respectively.
Calculate your buying timeline for London →Salaries in London vs Cardiff
Local salary medians derived from ONS regional pay data (ASHE 2025). Figures are estimates.
See Your Personal Numbers
The figures above are based on average costs. Enter your exact salary, current bills and savings in our Should I Move Simulator to see the precise financial difference for your situation.
Try the Should I Move Simulator →Advertisement
Frequently Asked Questions
Is London or Cardiff cheaper to live in?
Based on average costs, Cardiff is cheaper to live in than London. On a £40,000 salary, Cardiff leaves an estimated £1,284 more per month after average costs. Rent in Cardiff is £1,100/month lower on average.
How much more expensive is London than Cardiff?
On a £40,000 salary, estimated average costs leave £282/month in London and £1,002/month in Cardiff — a difference of £1,284/month. Over a year, that is £15,408.
What salary do I need to live comfortably in London vs Cardiff?
Based on average costs, a single person in London typically needs around £6,300 gross per year for rent to stay within 33% of take-home pay. In Cardiff, that figure is around £3,000. Individual circumstances vary significantly.
What is the average rent in London vs Cardiff?
The average rent for a one-bedroom property is £2,100/month in London and £1,000/month in Cardiff, according to the ONS Private Rental Market Survey (April 2026). Cardiff is £1,100/month cheaper on average.
What is the financial difference between living in London vs Cardiff?
On a £40,000 salary, London leaves an estimated £-282/month after average costs, while Cardiff leaves £1,002/month. The difference is £1,284/month or £15,408/year. Use the Should I Move Simulator to calculate your personal figures.
What is the average house price in London vs Cardiff?
The average house price in London is £523,000 and in Cardiff is £215,000, based on ONS UK House Price Index (March 2026). A 10% deposit in London would be £52,300, compared to £21,500 in Cardiff.
All figures based on ONS data and HMRC 2026/27 rates. Rent from ONS Private Rental Market Survey, April 2026. House prices from ONS UK House Price Index, March 2026. Local salary medians derived from ONS regional pay data (ASHE 2025) — approximations only. Stamp duty calculated using current rates for England (SDLT), Scotland (LBTT) and Wales (LTT). All figures are estimates only and do not constitute financial advice. Individual circumstances vary significantly. Last updated: June 2026.