Buy vs Rent London
London rent hit £2,190/month. Property prices reached £561,000. See which option saves you more over 20 years.
Property Details
Rental & Market
Costs & Timeline
You Save
Over 20 years, renting and investing your deposit saves you more money.
💷 Buying Outcome
Net cost after 20 years
🏠 Renting & Investing
Net gain after 20 years
Cost Breakdown
Total Spent on Housing
Total Rent Paid
That’s enough to buy 2 brand new Tesla Model 3s, or take 45 return flights to New York.
Back in 2020, average London rent was £1,850 per month. Now it’s £2,190. Your salary probably didn’t match that 18% jump. Meanwhile, property prices climbed to £561,000 with mortgage rates hovering around 4.5%. This won’t give you a crystal ball, but it will show you the brutal math based on real data.
How This Works
The numbers you see come from straightforward calculations that mirror real-world scenarios. When you choose to buy, we factor in your mortgage payments (principal plus interest), stamp duty, legal fees, maintenance costs, and what your property might sell for after your chosen time period. Property appreciation uses the growth rate you set.
For renting, we take your monthly payments and compound them with the annual increase rate. The deposit you would have used to buy a property? That gets invested at your chosen return rate. Any monthly difference between what you would have paid on a mortgage versus rent also gets invested.
Buying Scenario Formula: Final property value minus (total mortgage paid + deposit + stamp duty + buying costs + selling costs + maintenance over years) = Net outcome
Renting Scenario Formula: (Invested deposit growth + monthly investment growth) minus (total rent paid over years) = Net outcome
UK House Price Index (HM Land Registry): Official government data showing London average property prices reached £561,000 in mid-2025, with annual growth rates between 0.8% and 4.5% depending on property type.
Office for National Statistics (ONS): Private rent data indicates London rents averaging £1,596 to £2,190 monthly as of August 2025, with areas like Westminster and Kensington commanding £3,000+.
Bank of England & Rightmove: Current mortgage rates for 75-85% LTV mortgages range from 4.10% to 4.33% for fixed terms as of December 2025.
Important: This uses average data and standard assumptions. Your actual situation depends on factors like your credit score, specific location, property condition, investment choices, and market timing. Property values can fall. Investments carry risk. Rent can jump unpredictably.
Why Your Decision Matters More Than Ever
London’s property market passed a turning point in late 2024. Prices rose 2.2% year-on-year while mortgage rates settled around 4-5% after the chaos of 2022-2023. At the same time, rent increases slowed to 4.2% annually—a relief compared to the 14.8% spike from 2023, but still brutal for tenants.
Here’s what this means for you: A £561,000 flat with a 10% deposit requires £56,100 upfront, plus around £18,000 in stamp duty. Your monthly mortgage payment at 4.5% over 25 years? Roughly £2,800. Compare that to the £2,190 average rent. But that £56,100 deposit could grow to over £120,000 in 20 years at a 5% return rate if invested instead.
The Bank of England’s base rate decisions directly impact your mortgage costs. After 14 consecutive rate hikes between December 2021 and August 2023, rates peaked at 5.25% before recent cuts brought relief. Fixed-rate mortgages now offer protection against future volatility, but you pay a premium for that certainty.
Government policy adds another layer. First-time buyers pay no stamp duty on properties up to £425,000, saving up to £6,250. Once you cross that threshold, costs escalate fast. The £561,000 London average means new buyers face an £18,050 stamp duty bill—money that vanishes from your wealth before you even own a brick.
Real People, Real Numbers
Emma, 28, Marketing Manager | Shoreditch
Salary: £45,000 | Saved: £60,000
Looking at: £520,000 one-bed flat
Monthly mortgage: £2,610 | Nearby rent: £2,100
After 15 years: Buying leaves her with £62,000 in property equity after selling. Renting and investing her £60,000 deposit grows to £142,000, minus £469,000 in rent paid. Renting wins by £19,000, giving her flexibility to relocate if her career demands it.
James & Sarah, 34, Software Engineers | Zone 4
Combined salary: £120,000 | Saved: £85,000
Looking at: £650,000 three-bed house
Monthly mortgage: £3,250 | Similar rent: £2,600
After 25 years: Their property appreciates to £1.36 million. After paying off the mortgage and costs, they net £690,000. Renting costs £1.1 million total, but their investments grow to £580,000. Buying wins by £110,000, plus they own their home outright for retirement.
Raj, 31, Teacher | Croydon
Salary: £38,000 | Saved: £45,000
Looking at: £380,000 two-bed flat
Monthly mortgage: £1,900 | Current rent: £1,280
After 10 years: Buying costs him £228,000 in mortgage payments, maintenance, and fees. His property is worth £496,000. Net position: £68,000 gain. Renting costs £179,000 total. His invested deposit grows to £73,000. Renting wins by £11,000 because the lower rent lets him save more elsewhere.
Lucy, 26, Nurse | Stratford
Salary: £32,000 | Saved: £35,000
Looking at: £410,000 one-bed flat
Monthly mortgage: £2,060 | Current rent: £1,650
After 8 years (planning to move): Buying costs £197,000 total. Property worth £489,000. After selling and paying off mortgage, she walks away with £61,000. Renting costs £179,000. Her £35,000 deposit grows to £52,000. Buying wins by £28,000 despite the short timeframe, because East London property values jumped 30% in this scenario.
The Breakeven Point
Most scenarios show a crossover between years 7 and 15. Before that point, buying bleeds money through upfront costs and higher monthly payments. Your deposit sits locked in bricks rather than earning returns. Legal fees, surveys, and stamp duty pile up fast.
| Timeframe | Buying Advantage | Renting Advantage | Winner |
|---|---|---|---|
| Years 1-3 | Building equity slowly | Deposit invested, zero upfront fees, lower monthly outlay | Renting (£15k-£30k ahead) |
| Years 4-7 | Mortgage principal paid down, property value rising | Investment compound growth accelerating, rent inflation painful | Depends on location |
| Years 8-15 | Property appreciation compounds, mortgage balance shrinking | Rent now £3,200+/month, investments solid but can’t match property gains in hot areas | Buying (£20k-£80k ahead) |
| Years 16-25 | Mortgage paid off or nearly there, living rent-free, property worth £800k+ | Rent hit £3,800/month, investments strong at £250k+ but rent costs exceed gains | Buying (£100k-£200k ahead) |
| 25+ Years | Own outright, can pass to children, borrow against equity, zero housing costs | Renting forever at £4,500+/month, no asset to pass on | Buying (£300k+ ahead) |
The longer you stay, the more buying tends to win. Short stays (under 5 years) almost always favor renting because selling fees and stamp duty eat your gains. If you expect a job change, relationship uncertainty, or relocation, renting protects you from being locked in.
What The Numbers Don’t Show
Buying gives you control. Paint the walls purple. Get a dog. Replace the kitchen without asking permission. Renting means your landlord can serve Section 21 notice, forcing you out with two months warning—though recent government reforms aim to end this practice by late 2025.
Buying brings stress: boiler breaks at midnight, roof leaks during storms, service charges jump unexpectedly. Renting means one phone call and someone else pays for repairs. But that landlord might not fix things promptly, or at all.
Mortgage approval isn’t guaranteed. Lenders scrutinize your income, credit history, employment stability. Self-employed workers face tougher standards. A 10% deposit on a £561,000 property requires £56,100—most Londoners take 8-12 years to save that while paying rent. The “Bank of Mum and Dad” funded 28% of UK property purchases in 2024, according to Legal & General. Without family help, the ladder feels impossibly tall.
FAQs
Is buying always better if I plan to stay 20+ years?
Usually, but not always. If property values stagnate or fall while your investments perform well, renting can still win. The 2008-2012 period proved this when London property dropped 15% while global stock markets recovered faster. Location matters hugely—Zone 1 flats appreciate differently than Zone 6 houses.
Run the numbers with conservative property growth (1-2%) and higher investment returns (6-7%) to test worst-case buying scenarios.
What if mortgage rates jump to 7% again?
Your monthly payments would soar. A £500,000 mortgage at 4.5% costs £2,780/month. At 7%, that becomes £3,324—an extra £544 monthly or £6,528 yearly. Fixed-rate deals protect you for 2, 5, or 10 years, but you pay a premium for that security. Variable rates leave you exposed to Bank of England base rate changes.
If rates spike, renting suddenly looks cheaper again. That’s exactly what happened in 2022-2023 when rates tripled in 18 months.
Can I really get 5% returns investing my deposit?
The FTSE All-Share index returned an average of 7.3% annually over the past 30 years, but past performance guarantees nothing. Low-cost index funds tracking global markets offer diversification. High-interest savings accounts currently pay 4-5% risk-free, though inflation eats into that.
The key word is “average”—some years you gain 15%, others you lose 10%. Property values also fluctuate, just less visibly because you don’t check Rightmove daily like you check investment apps.
What happens if I need to sell before my mortgage term ends?
Early repayment charges (ERCs) can cost 1-5% of your outstanding mortgage balance. On a £400,000 mortgage, that’s £4,000-£20,000 extra. Most fixed-rate deals include ERCs for the fixed period. Once you’re on the variable rate, you can usually sell penalty-free.
Estate agent fees add 1-1.5% plus VAT. Legal costs run £1,000-£2,500. Total selling costs often hit £10,000-£15,000, wiping out gains from short-term ownership.
Does the stamp duty holiday change anything?
There is no stamp duty holiday active in December 2025. First-time buyers pay zero stamp duty up to £425,000 (saving up to £6,250), then 5% on the portion between £425,000-£625,000. Everyone else pays from £250,000 upwards. Additional properties face a 3% surcharge on all bands.
These thresholds change with government policy. Always check current rates before calculating costs.
What about Help to Buy or shared ownership schemes?
Help to Buy equity loans closed for new applications in March 2023. Shared ownership lets you buy 25-75% of a property and pay rent on the remainder, reducing your deposit and mortgage size. You can “staircase” to 100% ownership over time.
Shared ownership works for people priced out of full ownership, but you pay rent plus mortgage plus service charges. The math gets complicated—factor all three costs into your calculations.
Should I wait for prices to drop?
Timing the market is notoriously difficult. People who waited for crashes in 2015, 2017, and 2019 watched prices climb another 20-30% instead. The 2020 pandemic briefly froze the market, then prices jumped 15% through 2021-2022 as people sought more space.
If you find a property you can afford and plan to stay 7+ years, trying to time a dip often costs more in rising rents and prices than any crash would save. Markets can stay “overvalued” for decades.
What if I lose my job after buying?
Mortgage payment protection insurance can cover payments for 12-24 months if you’re made redundant, but policies exclude voluntary resignations and have waiting periods. Without insurance, you could face repossession if you miss payments for 3+ months.
Renting offers more flexibility to downsize quickly. Selling a property takes 3-6 months minimum and costs thousands in fees. Keep an emergency fund covering 6 months of mortgage payments if you buy.