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

Advice for London landlords and tenants ahead of the Renters’ Rights Act implementation

Phase one of the Renters’ Rights Act (RRA) comes into force on 1 May 2026, and with it brings about the most significant overhaul of the private rental sector in a generation. While the Act will see new responsibilities introduced, it will also offer an opportunity for landlords to strengthen their practices with a clear…
Read More
Estate Agent Talk

Budget-friendly ways to boost your chances of a successful spring house sale

With many households feeling the pressure of changing global economic conditions, tighter finances, and the high costs associated with moving, such as Stamp Duty, legal fees and removals, selling a home can currently feel like challenge. At the same time, spring traditionally brings a surge in buyer activity. Longer days and better weather tend to encourage more viewings,…
Read More
Letting Agent Talk

Expert Reacts To Renters’ Rights Act Ahead of Changes This Week

The Renters’ Rights Act comes into force this week (1st May), introducing major reforms to tenancy structures, eviction rules, and tenant protections across England. The changes will reshape how landlords manage properties and how tenants experience private renting, with significant implications for student private rentals and the wider rental market. Ahead of implementation, Owen Dixon,…
Read More
Breaking News

52% of buyers are cash purchasers – and they’re ready to move

New research from LRG reveals that sellers entering the spring market are meeting an unusually large pool of cash-ready buyers, many of whom aren’t constrained by affordability, but by a lack of suitable homes. According to LRG’s Spring 2026 Sales Report, based on a survey of 307 buyers and sellers across England and Wales, more than…
Read More
for sale sign london
Breaking News

Landlords sell up as Renters’ Rights prove final straw

Leading Kent and London law firm Thackray Williams have had a wave of last-minute instructions from landlords looking to sell their portfolios ahead of the Renters’ Rights Act coming into force this Friday. The litigation team has been instructed to seek possession by landlords wishing to sell their entire buy-to-let portfolios, as well as last-minute…
Read More
Breaking News

Breaking Property News 27/4/26

Daily bite-sized proptech and property news in partnership with Proptech-X. Will AI change the way we search on property portals? Thought Leadership by Andrew Stanton, CEO Proptech-PR Rightmove: the UK’s most profitable proptech Rightmove is widely seen as the UK’s most profitable proptech, generating £300m+ annually with operating margins around 70%. Even with slight recent…
Read More