Key indicators for buyers
The SW1Y market is moderately favourable for buyers. Prices have softened (-92.2%), which could present a buying opportunity. Affordability has improved from a peak of 25.4x in 2017 to 16.0x today.
Yearly averages · HM Land Registry Price Paid Data
2025averages · HM Land Registry Price Paid Data
House price ÷ median earnings · ONS data
Affordability data shown for wider City of Westminster area
A home in City of Westminster costs 16.0x the local median salary — very stretched, improving from a peak of 25.4x in 2017.
Average monthly rent · ONS Private Rental Index
Rental data shown for wider City of Westminster area
Average monthly rent in City of Westminster is £3,138, down 4.6% year-on-year. Rents have risen consistently over the past five years.
2yr fixed · 75% LTV · 25yr term · BoE avg. rate
Based on the average City of Westminster price of £846,333 with a 25% deposit (£212k), a 2-year fixed mortgage at 3.97% costs around £3,340 per month.
Monthly cost comparison based on current data
Uses SW1Y avg. price with City of Westminster rental data
Monthly mortgage payments (£3,340) are £202 more than renting (£3,138). However, buying requires an upfront deposit of £212k — it would take around 10 years to recoup that cost compared to renting and investing the difference.
Latest transactions · HM Land Registry Price Paid Data
| Address | Type | Price | Date |
|---|---|---|---|
FLAT 18, CRUSADER HOUSE, 14, PALL MALL SW1Y 5LU | Flat/Maisonette | £800,000 | 18 Dec 2025 |
2, CASTLEMAINE HOUSE, 12, ROSE & CROWN YARD SW1Y 6RE | Flat/Maisonette | £899,000 | 28 Mar 2025 |
3, CASTLEMAINE HOUSE, 12, ROSE & CROWN YARD SW1Y 6RE | Flat/Maisonette | £840,000 | 17 Feb 2025 |
88, JERMYN STREET SW1Y 6JD | Terraced | £6,300,000 | 5 Dec 2024 |
FLAT 7, 59 - 60, JERMYN STREET SW1Y 6LX | Flat/Maisonette | £1,865,000 | 18 Nov 2024 |
GROUND FLOOR SHOP, 15 - 17, KING STREET SW1Y 6QU | Other | £74,007 | 8 Nov 2024 |
FLAT 49, BANK CHAMBERS, 25, JERMYN STREET |
Data sources (all free & public): HM Land Registry Price Paid Data & UK House Price Index · ONS Housing Affordability Ratios · ONS Private Rental Index · Bank of England Quoted Household Interest Rates · HMRC Monthly Property Transactions
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
The average property in SW1Y sold for £846,333 in 2025, with a median of £840,000 across 3 transactions. Prices fell 92.2% compared to the previous year.
| Flat/Maisonette |
| £282,000 |
| 4 Nov 2024 |
1, ST JAMES'S CHAMBERS SW1Y 6QA | Flat/Maisonette | £2,966,250 | 31 Oct 2024 |
FLAT 2, 22, ST JAMES'S SQUARE SW1Y 4JH | Other | £2,450,000 | 21 Oct 2024 |
8, ST JAMES'S SQUARE SW1Y 4JU | Other | £200,000 | 4 Oct 2024 |
1, ST JAMES'S SQUARE SW1Y 4PD | Other | £14,200,000 | 19 Aug 2024 |
SECOND FLOOR, 6, DUKE STREET SW1Y 6BN | Other | £180,000 | 14 Aug 2024 |
APARTMENT 3, OCEANIC HOUSE, 1, COCKSPUR STREET SW1Y 5BG | Flat/Maisonette | £2,600,000 | 1 Aug 2024 |
107, JERMYN STREET SW1Y 6EE | Other | £12,892,963 | 8 Jul 2024 |
FLAT 29, BANK CHAMBERS, 25, JERMYN STREET SW1Y 6HR | Flat/Maisonette | £562,500 | 2 Jul 2024 |
FLAT 3, 5, PANTON STREET SW1Y 4DL | Flat/Maisonette | £495,000 | 17 May 2024 |
FLAT 1, BANK CHAMBERS, 25, JERMYN STREET SW1Y 6HR | Flat/Maisonette | £2,800,000 | 22 Apr 2024 |
67 - 68, PALL MALL SW1Y 5ES | Flat/Maisonette | £31,000,000 | 8 Apr 2024 |
89, JERMYN STREET SW1Y 6JH | Terraced | £7,750,000 | 2 Apr 2024 |
9, BURY STREET SW1Y 6AB | Flat/Maisonette | £162,000 | 9 Feb 2024 |
The most recent recorded sale in SW1Y was a flat/maisonette property on Pall Mall for £800,000 in December 2025. Across the last 20 sales, the median price was £1,865,000.