Key indicators for buyers
The SW1A market is moderately favourable for buyers. Prices have softened (-84.3%), 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 £2,461,898 with a 25% deposit (£615k), a 2-year fixed mortgage at 3.97% costs around £9,716 per month.
Monthly cost comparison based on current data
Uses SW1A avg. price with City of Westminster rental data
Monthly mortgage payments (£9,716) are £6,578 more than renting (£3,138). However, buying requires an upfront deposit of £615k — it would take around 51290 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 31, 73, ST JAMES'S STREET SW1A 1PH | Flat/Maisonette | £2,850,000 | 15 Sept 2025 |
FLAT 143B, 4, WHITEHALL COURT SW1A 2EP | Flat/Maisonette | £1,900,000 | 12 Aug 2025 |
2, CATHERINE WHEEL YARD SW1A 1DR | Terraced | £2,000,000 | 14 Jul 2025 |
FLAT 42, ARLINGTON HOUSE, ARLINGTON STREET SW1A 1RL | Flat/Maisonette | £6,850,000 | 17 Jun 2025 |
APARTMENT 1, 30, ST JAMES'S STREET SW1A 1HD | Flat/Maisonette | £1,400,000 | 14 Apr 2025 |
FLAT 116, 4, WHITEHALL COURT SW1A 2EP | Flat/Maisonette | £1,400,000 | 31 Mar 2025 |
FLAT 7, 73, ST JAMES'S 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 SW1A sold for £2,461,898 in 2025, with a median of £1,515,000 across 12 transactions. Prices fell 84.3% compared to the previous year.
| Flat/Maisonette |
| £480,000 |
| 31 Mar 2025 |
APARTMENT 1.14, 6, HORSE GUARDS AVENUE SW1A 2BH | Flat/Maisonette | £7,554,578 | 21 Mar 2025 |
FLAT 146, 4, WHITEHALL COURT SW1A 2EP | Flat/Maisonette | £1,630,000 | 20 Mar 2025 |
FLAT 4, 25, WHITEHALL SW1A 2BS | Flat/Maisonette | £853,200 | 20 Mar 2025 |
FLAT 152, 4, WHITEHALL COURT SW1A 2EP | Flat/Maisonette | £1,300,000 | 28 Feb 2025 |
SUITE 79A, 3, WHITEHALL COURT SW1A 2EL | Flat/Maisonette | £1,325,000 | 10 Feb 2025 |
FLAT 121, 4, WHITEHALL COURT SW1A 2EP | Flat/Maisonette | £1,400,000 | 24 Oct 2024 |
FLAT 63, 3, WHITEHALL COURT SW1A 2EL | Flat/Maisonette | £1,400,000 | 16 Oct 2024 |
FLAT 132, 4, WHITEHALL COURT SW1A 2EP | Flat/Maisonette | £4,500,000 | 10 Sept 2024 |
APARTMENT 1.01, 6, HORSE GUARDS AVENUE SW1A 2BH | Flat/Maisonette | £10,890,000 | 30 Aug 2024 |
APARTMENT 4.04, 6, HORSE GUARDS AVENUE SW1A 2BH | Flat/Maisonette | £14,087,848 | 18 Jul 2024 |
FLAT A, 1 - 3, SPRING GARDENS SW1A 2BB | Flat/Maisonette | £1,274,800 | 19 Jun 2024 |
66, ST JAMES'S STREET SW1A 1NE | Other | £20,000,000 | 14 May 2024 |
SUITE 55, 3, WHITEHALL COURT SW1A 2EL | Flat/Maisonette | £1,625,000 | 13 May 2024 |
The most recent recorded sale in SW1A was a flat/maisonette property on St James'S Street for £2,850,000 in September 2025. Across the last 20 sales, the median price was £1,630,000.