England · Postcode district · Westminster
SW1A house prices, sales and rents
September 2026. Sold prices settled to December 2025; listings read daily. Part of Westminster.
- Sold prices, 12 months
- +1.0%
- index to December 2025
- Homes sold, 12 months
- 22
- registered, to September 2025
- Asking prices, 12 months
- −7.1%
- to June 2026
- Asking rents, 12 months
- +25.9%
- to August 2026
- Homes for sale
- 28
- 7 September 2026
- Median asking price
- £6,500,000
- live listings
- Listings reduced
- 0%
- January 2026
- EPC A or B
- 24.9%
- of certificated homes
Summary
The SW1A market in September 2026
Sold prices in SW1A are +1.0% over the twelve months to December 2025 on the house price index. Over five years it is +17.6%.
SW1A has too few repeat sales for an index of its own, so the published series is the national one. Its turns are national, not local.
22 sales were registered in SW1A in the twelve months to September 2025, −4% on the twelve months before, at a median of £1,900,000. Counts are from HM Land Registry directly; months from February 2026 are still filling and are left out of the total.
On the portals, asking prices moved −7.1% and asking rents +25.9% over twelve months. Asking leads sold by months and includes what never sells. The pipeline publishes these quarterly for this area because the monthly move is too noisy to resolve.
In January 2026, 7 homes came to market in SW1A and 0% of listings were reduced. The median asking price was £6,500,000, £26,865 per square metre. New builds were 43% of listings.
5 agents listed a home for sale that month; the three busiest held 71% of listings.
28 homes were live for sale in SW1A on 7 September 2026, at a median asking price of £6,500,000, with a median listing age of 285 days. The stock count is observed daily from 5 September 2026 and settles as the portal sweep completes.
6 residential lots went to auction in SW1A over the last 5 quarters with results; in Q2 2024, 1 was offered and 1 sold. Guide and hammer averages are computed on different lots, so the table shows both with their counts rather than a difference.
381 homes in SW1A hold an energy certificate. 24.9% are rated A or B and 36.2% D or worse. 48% heat with mains gas, 3.9% with a heat pump. Certificates are lodged on sale or let, so long-held and social housing are under-represented.
Sold prices
House price index for SW1A
Published against SW1A as the national series: the area does not carry enough repeat sales for an index of its own. Settled to December 2025; later points are forecasts with bands. Tool: market_index_series.
Registered sales
Homes sold in SW1A, month by month
Every registered sale, not the cube's matched sample. Months from February 2026 are still filling and will rise. Tool: market_volume_series.
Listings
Asking prices and rents in SW1A
Asking-price index
Asking-rent index
From portal listings; the level is an index, never a price. Shaded points are provisional. Tools: asking_price_index_series, asking_rent_index_series.
Listing statistics
New to market in SW1A
- Came to market
- 7
- never-reduced cohort
- Reduced
- 0%
- of listings
- Median asking
- £6,500,000
- £4,225,000 to £9,875,000 interquartile
- Asking £/m²
- £26,865
- where floor area is stated
- New build
- 43%
- of listings
- Agents active
- 5
- top three hold 71%
- Median asking rent
- £25,567 pcm
- August 2026
January 2026. Listings later reduced lose their listing date, so the count of new listings undercounts by the reduction share. Tool: listing_market_series.
Live stock
Homes on the market in SW1A
Observed daily from 5 September 2026; the portals keep no exit dates, so it cannot be reconstructed for the past. Tool: listing_stock_series.
Auctions
Auction results in SW1A
| Quarter | Offered | Sold | Sale rate | Avg guide (lots) | Avg hammer (lots) |
|---|---|---|---|---|---|
| Q2 2024 | 1 | 1 | 100% | £800,000 (1) | — |
| Q1 2024 | 1 | 0 | 0% | £450,000 (1) | — |
| Q3 2023 | 1 | 0 | 0% | £500,000 (1) | — |
| Q3 2017 | 1 | 1 | 100% | £0 (1) | — |
| Q1 2016 | 2 | 0 | 0% | £0 (2) | — |
Residential lots from five auction houses. Guide and hammer averages are over different lots, so a difference between them is not a discount. Tools: auction_stats, auction_discount.
Agents
Who is selling in SW1A
| Agent | Sale listings, 12 months | Median asking price |
|---|---|---|
| Savills Residential Developments, Margaret Street | 7 | £8,750,000 |
| OB Private, Mayfair | 2 | £5,500,000 |
| LONDRA ESTATE, London | 1 | £4,000,000 |
| Coldwell Banker Southbank, London | 1 | £11,289,800 |
| Wetherell, Mayfair | 1 | £2,995,000 |
| Martin & Co, Chelsea | 1 | £600,000 |
| Harding Green, London & Country | 1 | £3,950,000 |
Ranked by sale listings on the portals over the last twelve months. Tool: agent_activity.
EPC
Energy ratings in SW1A
- B24.9%
- C38.8%
- D25.5%
- E8.7%
- F1.8%
- G0.3%
- Certificates
- 381
- Mains gas
- 48%
- Electric heating
- 18.4%
- Heat pump
- 3.9%
Of homes holding a certificate, not of all stock: EPCs are lodged on sale or let, so long-held and social housing are under-represented. Tool: energy_profile.
Do it today
Get the SW1A figures yourself
Every number on this page is a free call. In Claude, ChatGPT, Codex or Cursor with the MarketCode MCP connected, ask: “Give me the house price index, asking indices and current listing stock for SW1A, and say whether the index is local or national.” In code, call the REST twins with area_code="SW1A" and area_type="district".
Nearby
Around SW1A
SW1A is one of 25 postcode districts on the Westminster page, which carries the authority-wide index, cohort prices, agents and energy profile.
- Westminster, the whole authority
- NW8£1,741,710
- SW1E£950,000
- SW1H£860,100
- SW1P£755,345
- SW1V£739,308
- SW1W£2,249,117
- SW1Y£883,333
- W1B£1,053,750
- W1C
- W1D£712,500
- W1F
- W1G£1,719,727
- W1H£975,000
- W1J£1,329,855
- W1K£5,153,571
- W1S£2,652,500
- W1U£1,451,048
- W1W£1,109,755
- W2£847,449
- W9£683,266
- WC2A
- WC2E£940,250
- WC2N
- WC2R£1,390,000
- All areas
From the blog
Reading the numbers
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Company, public body and overseas owners are in bulk registers you can query in one call. Individuals are not. Here is what each route can tell you.
Land Registry Price Paid Data, explained
Every registered sale in England and Wales since 1995 is public. What the file contains, what it leaves out, why the trailing months are always wrong.
How to read a house price index without fooling yourself
A house price index is not an average price. Here is what a repeat-sales index measures, what the forecast tail means, why thin areas borrow the.
FAQ
Questions about the SW1A market
How have house prices in SW1A changed?
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The sold-price index moved +1.0% over the twelve months to December 2025, and +17.6% over five years. The area is too thin for its own index, so this is the national series.
How many homes sold in SW1A last year?
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22 sales were registered in the twelve months to September 2025, against 23 in the twelve months before. The registry fills the most recent months late, so the trailing months are excluded until they settle.
How many homes are for sale in SW1A?
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28 on 7 September 2026, at a median asking price of £6,500,000. The count is read from live portal listings each day.
Which estate agents sell the most in SW1A?
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By sale listings over the last twelve months: Savills Residential Developments, Margaret Street (7), OB Private, Mayfair (2), LONDRA ESTATE, London (1). The table above lists the top 7.
Where does the SW1A data come from?
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HM Land Registry Price Paid Data for the sold-price index, the sale counts and the cube prices; portal listings for the asking indices, listing statistics, live stock and agents; the EPC register for the energy profile; five auction houses for the auction results; the ONS rent index as the check on the rent series. The methodology page explains each; the sources page lists licences and refresh.
Can I get the SW1A figures in my own assistant or code?
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Yes, and every one is free: market_index_series, market_volume_series, asking_price_index_series, asking_rent_index_series, market_facts, listing_market_series, listing_stock_series, auction_stats, energy_profile and agent_activity with area_code "SW1A" and area_type "district". Ask Claude, ChatGPT, Codex or Cursor with the MCP server connected, or call the REST twins with an API key.
Is this a valuation of a property in SW1A?
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No. This page is the area's market. A property is valued from its own record: the valuation tools return an estimate, a range and a trust score for any address in SW1A with a floor area on record.
Value an address in SW1A.
Thirty minutes: the estimate, the range, the comparables and the market behind it, live.