London's Cheapest Boroughs for First-Time Buyers (2026)

1. Entry price: five boroughs under £300,000, Barking at £227k

• •Barking and Dagenham at £233,000 is the only London borough where the median flat sits below £250,000: 216 flat transactions in the window, Zone 4–5 connections, real market volume.
• •Bexley and Havering at £260,000–£263,000: outer south-east and outer north-east. 473 and 518 flat transactions respectively. More houses than flats in both, which keeps flat prices below their overall borough median.
• •Croydon at £281,000 and Sutton at £287,000 complete the sub-£300,000 tier: Croydon is the most liquid at 1,017 flat transactions. More stock, less risk of overpaying.
• •The London-wide flat median is £426,000, some £193,000 above Barking: that gap is roughly four years of savings at a typical London salary.

2. Income maths: £47k gets you a flat, £81k gets you a house in the same borough

• •At a 4.5x income multiple with a 10% deposit, a flat in Barking requires roughly £46,600 household income: formula is £233,000 × 0.9 ÷ 4.5. Bexley and Havering run £52,000–£52,600; Croydon and Sutton £56,300–£57,400.
• •The cheapest London house borough is also Barking, median £405,000, requiring £81,000 household income: 74% more than the same borough's flat, for the same location.
• •Monthly repayments at 3.97% over 25 years: £1,102 for a Barking flat, £1,920 for a Barking house: £818 per month apart, same rate, same borough.
• •A buyer on the London median salary of £44,000 can borrow roughly £198,000: below the median flat price in every London borough. Joint income is the practical path for most London first-time buyers.

3. Schemes: zero stamp duty on all five, Lifetime ISA valid in 20 of 33 boroughs

• •Stamp Duty Land Tax for a first-time buyer on any of these five boroughs: £0: April 2025 thresholds give zero tax on the first £300,000, 5% on £300,001–£500,000, no relief above £500,000.^[3] All five flat medians sit below £300,000. A standard buyer at £227,000 pays £2,040; a Croydon flat at £285,000 saves £4,250 on the same basis.
• •The Lifetime Individual Savings Account is the most useful savings tool for London first-time buyers in affordable boroughs: save up to £4,000 per year and the government adds a 25% bonus — up to £1,000 per year. The bonus applies when you buy your first home, as long as the property costs £450,000 or less.^[4] All five cheapest flat boroughs sit below that cap, so the bonus is fully usable. In the 13 boroughs above £450,000 median, including most of inner London, the account cannot be used for the median property. You must open the account before age 40, and withdrawing for any purpose other than a first home purchase or retirement triggers a 25% penalty — which claws back the bonus and a portion of your own savings.
• •Shared ownership is an active scheme first-time buyers can use: you buy a 10–75% share of a property and pay subsidised rent on the rest, with the option to increase your share over time. Household income must be £90,000 or below in London. Shared ownership sales are excluded from BrickIntel's data (category B transactions), so all prices shown reflect open-market purchases only.^[5]
• •Help to Buy equity loan closed in October 2022: it is not available. Any content still listing it as an option is out of date.

4. Your number: all 33 boroughs ranked, calculator ready

• •The borough table above covers all 33 London boroughs. Sort by flat median to find your price range: clicking a borough name opens the district-level view, where prices in outer postcodes within a borough can sit well below the borough median.
• •BrickIntel Explore (/explore) shows district-level prices within any borough: outer postcodes in Havering and Bexley can price noticeably below their borough median.
• •Run the mortgage calculator with your actual deposit and current rate to get your real monthly figure: the calculator is at /explore under the Mortgage Calculator tab. A full walkthrough is in the guide.

References

1. HM Land Registry. Price Paid Data. BrickIntel analysis, category A transactions only.
2. Bank of England. Statistical Interactive Database. Series IUMBV34 (2-year fixed, 75% loan to value). February 2026.
3. HMRC. Stamp Duty Land Tax: relief for first-time buyers. April 2025 thresholds.
4. HM Treasury. Lifetime Individual Savings Account. Property purchase cap: £450,000.
5. UK Government. Shared Ownership scheme.