Key Street Insights
William Street is a residential street with 21 addresses.
It ranks as the 200th largest and 224th most expensive of the 447 streets in the SW1 area. The most common property type is a period flat built between 1800 and 1911.
The street contains a total of 21 properties: 21 flats.
Key Street Insights
William Street is a residential street with 21 addresses.
It ranks as the 200th largest and 224th most expensive of the 447 streets in the SW1 area. The most common property type is a period flat built between 1800 and 1911.
The street contains a total of 21 properties: 21 flats.
Explore Propertieson William Street, London, SW1
- William Street House
Period Building | 9 Units
- 1 William Street
Modern Building | 9 Units
- 3 William Street
Unknown
- 4 William Street
3 Bed Period Flat
- 7 William Street
Unknown
Sales Market Trendson William Street
The last sale on William Street sold for £2,550,000 on 30th September 2025. Since then prices are up an average of 2.4%.
The current average value in the street is £6,007,708.
The William Street Sales Market has decreased by 12.0% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 0.2% | £6,007,708 |
| June 2025 | -2.3% | £5,997,630 |
| June 2024 | -2.9% | £6,141,180 |
| June 2023 | 1.1% | £6,325,209 |
| June 2022 | 3.6% | £6,253,894 |
| June 2021 | -4.1% | £6,038,956 |
| June 2020 | 2.4% | £6,297,051 |
| June 2019 | -3.4% | £6,148,023 |
| June 2018 | -4.6% | £6,364,046 |
| June 2017 | -2.2% | £6,672,523 |
| June 2016 | -3.1% | £6,825,293 |
| June 2015 | -0.3% | £7,045,817 |
| June 2014 | 12.6% | £7,066,692 |
| June 2013 | 10.9% | £6,274,067 |
| June 2012 | 16.1% | £5,657,806 |
| June 2011 | 11.6% | £4,873,598 |
| June 2010 | 12.6% | £4,368,231 |
| June 2009 | -6.4% | £3,879,667 |
| June 2008 | 15.1% | £4,146,556 |
| June 2007 | 0% | £3,602,532 |
Rental Market Trendson William Street
The current average rental value in the street is £18,088.
The William Street Rental Market has increased by 42.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 9% | £18,088pcm |
| June 2025 | 3.9% | £16,589pcm |
| June 2024 | -0.3% | £15,964pcm |
| June 2023 | 13.8% | £16,010pcm |
| June 2022 | 24.7% | £14,064pcm |
| June 2021 | -8% | £11,282pcm |
| June 2020 | -5.1% | £12,257pcm |
| June 2019 | 2% | £12,920pcm |
| June 2018 | 0.8% | £12,664pcm |
| June 2017 | -0.8% | £12,559pcm |
| June 2016 | -3.6% | £12,656pcm |
| June 2015 | -2% | £13,133pcm |
| June 2014 | 0.7% | £13,402pcm |
| June 2013 | -0.6% | £13,305pcm |
| June 2012 | 4.5% | £13,388pcm |
| June 2011 | 13% | £12,816pcm |
| June 2010 | 10% | £11,345pcm |
| June 2009 | -10.6% | £10,317pcm |
| June 2008 | 11.1% | £11,535pcm |
| June 2007 | 0% | £10,380pcm |
Sales Historyon William Street, London, SW1
The last sale was on 30th September 2025 for £2,550,000 and since then the market in the area has increased by 2.4%. The street has had a total of 7 sales since 1995.
William Street, London, SW1 has seen 3 sales in the last three years and 1 sale in the last twelve months.
- Sold Sep 2025£2,550,000 | 3 Bed FlatApartment 9, 1, William Street, London, SW1X 9HLApartment 9, 1, William Street, London, SW1X 9HL
- Sold Mar 2024£2,650,000 | 3 Bed FlatApartment 7, 1, William Street, London, SW1X 9HLApartment 7, 1, William Street, London, SW1X 9HL
- Sold Sep 2023£15,200,000 | 3 Bed FlatApartment 4, 1, William Street, London, SW1X 9HLApartment 4, 1, William Street, London, SW1X 9HL
- Sold Aug 2004£1,850,000 | 3 Bed FlatFlat 5, William Street House, William Street, London, SW1X 9HHFlat 5, William Street House, William Street, London, SW1X 9HH
- Sold Jul 2002£1,250,000 | 3 Bed FlatFlat 5, William Street House, William Street, London, SW1X 9HHFlat 5, William Street House, William Street, London, SW1X 9HH
Top 3 Most Expensive Saleson William Street, London, SW1
- Sold Sep 2023£15,200,000 | 3 Bed FlatApartment 4, 1, William Street, London, SW1X 9HLApartment 4, 1, William Street, London, SW1X 9HL
- Sold Mar 2024£2,650,000 | 3 Bed FlatApartment 7, 1, William Street, London, SW1X 9HLApartment 7, 1, William Street, London, SW1X 9HL
- Sold Sep 2025£2,550,000 | 3 Bed FlatApartment 9, 1, William Street, London, SW1X 9HLApartment 9, 1, William Street, London, SW1X 9HL
Nearby Streetsto William Street, London, SW1
William Street, London, SW1 is the 200th largest and the 224th most expensive street in the SW1 area.
- Duplex Ride, London, SW11 Addresses|31 m away
- Studio Place, London, SW117 Addresses|38 m away
- Kinnerton Place North, London, SW110 Addresses|55 m away
- Bowland Yard, London, SW18 Addresses|66 m away
- Kinnerton Place South, London, SW111 Addresses|83 m away
- Frederic Mews, London, SW18 Addresses|105 m away
Sections of this streeton William Street, London, SW1
There are 2 postcodes on William Street, London, SW1.
- House prices in SW1X 9HL12 Addresses
- House prices in SW1X 9HH9 Addresses
Property Typesin William Street
- 10 period flats built between 1800 and 1911
- 9 modern flats built after 1980
- 2 other addresses of unknown type
- period flat (10)
- modern flat (9)
- Unknown (2)
Energy Efficiencyof properties on William Street
- Energy Performance Certificate (EPC) surveys conducted for 15 properties.
- The most common rating is C.
- A (0)
- E (0)
- B (0)
- F (0)
- C (8)
- G (0)
- D (7)
- No EPC (6)
Schools Nearby
- St George's Hanover Square CofE Primary School900 m away
- Holy Trinity CofE Primary School1.0 km away
- St Peter's Eaton Square CofE Primary School1.0 km away
- St. Thomas More Language College1.0 km away
- Westminster City School1.4 km away
- The Grey Coat Hospital1.8 km away
More reading links
Public Transport Nearby
The closest station to William Street, London, SW1 is Knightsbridge station, which is 400 metres away.
- Knightsbridge|400 m away
- Hyde Park Corner|400 m away
- Sloane Square|1.1 km away
