Get a foot on the London ladder in less than five years by changing just one thing

The latest research from leading room share platform, ideal flatmate, has looked at an alternative way to save that all important mortgage deposit while renting in the capital without compromising your rental locations, social life or calorie intake.

ideal flatmate looked at how much the average tenant could save in each borough by opting for a single room instead of renting a one-bedroom apartment of their own, based on the average cost of each across the capital.

ideal flatmate then looked at the required mortgage deposit at 10% of the average first-time buyer house price in each borough, before working out how many years it would take with the savings from house/flat sharing to reach this deposit.

Across London the average cost of a one-bedroom property is £1,300 a month, while a room will set you back just £600 – a saving of £700 a month. This equates to £8,400 a month and with the average first-time buyer house price in London currently at £412,679, it would take just under five years (4.9) to save the £41,267 10% mortgage deposit required.

The best borough for this alternative foot on the ladder was Hounslow. The average one-bed apartment costs £1,300 to rent, with a room costing just £596 – £704 cheaper a month or £8,448 a year. With this saving, it would take a tenant in Hounslow just over 4.2 years to compile the required deposit of £35,308

Enfield, Ealing, Tower Hamlets and Newham all provided a large enough saving to ensure tenants could save a mortgage deposit to live in the borough in less than five years.

At the other end of the table it would take tenants in Kensington and Chelsea 10.4 years to save a deposit with their room rental savings as a result of the extreme property prices in the borough.

But perhaps more surprisingly, it would also take tenants in Bexley the same amount of time for the opposite reason. The cost of renting a one bedroom and a room in the borough are both very reasonable so the saving is small, meaning it would take the same time to stump up the £31,000 deposit required in Bexley, as it would for the £120,716 deposit in Kensington and Chelsea.

Co-founder of ideal flatmate, Tom Gatzen, commented:

“The financial barrier of transitioning from a tenant to a homeowner in London is huge and when coupled with a lack of suitable rental stock available, it’s currently one of the biggest factors putting a strain on the capital’s rental market.

We completely understand that for many, the only viable option when living in the capital is to rent a room in a house or flat share already and there’s a very good chance that house prices in London will be higher than they are now in four to five years’ time.

However, while we know the idea of saving for a mortgage deposit seems impossible, we wanted to get people thinking outside the box on ways they can make a lifestyle adjustment in order to start tackling this mammoth task, without compromising the area in which they live or having to forsake avocado for breakfast.”

Borough
Average Rent (1 bed)
Single Room Rent
Monthly Saving
Yearly Saving
FTB House Price
Mortgage Deposit Required @ 10%
Years of Saving Required
Hounslow
£1,300
£596
£704
£8,448
£353,076
£35,308
4.2
Enfield
£1,100
£442
£658
£7,896
£352,056
£35,206
4.5
Ealing
£1,200
£442
£758
£9,096
£426,620
£42,662
4.7
Tower Hamlets
£1,430
£693
£737
£8,844
£415,189
£41,519
4.7
Newham
£1,200
£592
£608
£7,296
£342,734
£34,273
4.7
Brent
£1,250
£592
£658
£7,896
£406,390
£40,639
5.1
Southwark
£1,300
£588
£712
£8,544
£446,372
£44,637
5.2
Hackney
£1,495
£667
£828
£9,936
£523,280
£52,328
5.3
Lambeth
£1,300
£596
£704
£8,448
£453,022
£45,302
5.4
Lewisham
£1,100
£550
£550
£6,600
£366,680
£36,668
5.6
Kingston
£1,100
£492
£608
£7,296
£409,397
£40,940
5.6
Haringey
£1,250
£567
£683
£8,196
£478,903
£47,890
5.8
Greenwich
£1,150
£650
£500
£6,000
£352,939
£35,294
5.9
Islington
£1,517
£701
£816
£9,792
£582,156
£58,216
5.9
Redbridge
£990
£476
£514
£6,168
£370,373
£37,037
6.0
Croydon
£900
£492
£408
£4,896
£302,758
£30,276
6.2
Barnet
£1,150
£548
£602
£7,224
£446,786
£44,679
6.2
Hillingdon
£1,000
£542
£458
£5,496
£341,413
£34,141
6.2
Harrow
£1,050
£539
£511
£6,132
£386,293
£38,629
6.3
Waltham Forest
£1,075
£523
£552
£6,624
£419,083
£41,908
6.3
Westminster
£1,842
£715
£1,127
£13,524
£895,636
£89,564
6.6
Wandsworth
£1,365
£713
£652
£7,824
£521,095
£52,110
6.7
Merton
£1,200
£642
£558
£6,696
£447,387
£44,739
6.7
Barking and Dagenham
£950
£592
£358
£4,296
£287,108
£28,711
6.7
Bromley
£950
£527
£423
£5,076
£353,448
£35,345
7.0
Sutton
£925
£550
£375
£4,500
£320,221
£32,022
7.1
Richmond
£1,200
£614
£586
£7,032
£528,510
£52,851
7.5
Camden
£1,582
£802
£780
£9,360
£706,879
£70,688
7.6
Havering
£875
£549
£326
£3,912
£312,903
£31,290
8.0
Hammersmith and Fulham
£1,400
£801
£599
£7,188
£641,542
£64,154
8.9
Bexley
£800
£550
£250
£3,000
£310,631
£31,063
10.4
Kensington and Chelsea
£1,950
£980
£970
£11,640
£1,207,159
£120,716
10.4
London
£1,300
£600
£700
£8,400
£412,679
£41,268
4.9

END 

Properganda PR

National and local media coverage for property businesses. Journo quotes delivered in minutes.

You May Also Enjoy

Letting Agent Talk

29 is the age house sharing becomes ‘embarrassing’

but 11% still do it, according to new Nationwide research That equates to 27 million admitting they have felt embarrassed about their living situation With 69% saying living alone is unaffordable, it’s no surprise the average age of those in house shares is 35 From moving home (12%) to living with an ex (10%), as…
Read More
Estate Agent Talk

1 in 5 London Homes Listed in Last 30 Days

The latest research from London lettings and estate agent, Benham and Reeves, reveals that one in five homes currently for sale in London have been added to the market within the last 30 days, as sellers respond to strong buyer demand. Demand for London homes is strong Benham and Reeves has analysed current residential property…
Read More
Commercial Agent Talk

Biggest block management headaches revealed

The latest insight from property management specialist, Rushbrook & Rathbone, has found that utilities, cleaning and gardening are the most common block management requirements, accounting for almost two thirds of all call-outs and maintenance tasks carried out in 2025. Rushbrook & Rathbone’s internal data shines a light on what most frequently drives costs when it…
Read More
Home and Living

Invasive plants could be damaging your property

What every homeowner needs to know. Invasive plants growing in your garden could be causing serious and costly damage to your property without your realising. Some species can undermine foundations, cracking patios and driveways, and spreading rapidly beyond your boundaries, potentially leading to disputes with neighbours. The financial impact can be significant. Left untreated, these…
Read More
Rightmove logo
Breaking News

Rents stand still at start of the year for the first time since 2017

The average advertised rent of homes outside of London remains flat (0.0%) at £1,370 per calendar month, the first time since 2017 that there has been no rise from Q4 to Q1: Average advertised rents in London rose by 0.7% this quarter to £2,736pcm Average rents outside of London are still 1.6% higher than this time last year, though this is the lowest this figure has been since 2018…
Read More
Breaking News

London estate agents represent best value added

The latest research from AgentWise, the agent community helping to support estate agents through global collaboration and market insight, has found that London estate agents represent the best value added during the transaction process when compared to many other global property hotspots, with the average commission earned per property sitting well below other major global…
Read More