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Bricks&Logic is a trading name of Urban Markets Ltd
Company No. 11113204
  | Â
VAT No. GB 287 0845 68
Registered Address: 2 Leman St, London E1 8FA
15, Onslow Square, London, SW7 3NJ
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15 Onslow SquareHouse Prices / London, Kensington and Chelsea, Onslow Square, SW7 3NJ
Last updated Jun 2026
Key Building Insights
15 Onslow Square is a residential building situated on Onslow Square, London, SW7 with 7 addresses.
It ranks as the 724th largest and 892nd most expensive of the 1,225 buildings in the SW7 area.
The building contains a total of 7 properties: 7 flats.
7
Properties
- Flats
Key Building Insights
15 Onslow Square is a residential building situated on Onslow Square, London, SW7 with 7 addresses.
It ranks as the 724th largest and 892nd most expensive of the 1,225 buildings in the SW7 area.
The building contains a total of 7 properties: 7 flats.
7
Properties
- Flats
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House Pricesin 15 Onslow Square
Sale prices range from £1,814,714 for 3 bedroom leasehold flats with a garden (1,076 ft2) to £1,814,714 for 3 bedroom leasehold flats with a garden (1,076 ft2) .
Monthly rental prices range from £7,321 pcm for 3 bed flats to £7,321 pcm for 3 bed flats.
The gross rental yield is between 4.8% and 4.8%.
The average value per square foot is £1,687.
Average Sale Value
£1,814,714
Average Rental Value
£7,321 pcm
Average Rental Yield
4.8% /year
Average Value Per Sqft
£1,687 /ft2
Sales Market Trendsin 15 Onslow Square
The current average value in the building is £1,814,714.
The 15 Onslow Square Sales Market has decreased by 13.6% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| May 2026 | 0.1% | £1,814,714 |
| May 2025 | -3.6% | £1,813,738 |
| May 2024 | -2.3% | £1,880,847 |
| May 2023 | -3.2% | £1,924,457 |
| May 2022 | 6.1% | £1,988,242 |
| May 2021 | -2.7% | £1,874,470 |
| May 2020 | 4.5% | £1,926,715 |
| May 2019 | -1.5% | £1,844,580 |
| May 2018 | -1.7% | £1,872,819 |
| May 2017 | -9.3% | £1,905,515 |
| May 2016 | -2.4% | £2,100,906 |
| May 2015 | -1% | £2,151,636 |
| May 2014 | 16.1% | £2,173,772 |
| May 2013 | 4.9% | £1,872,333 |
| May 2012 | 15.6% | £1,784,969 |
| May 2011 | 14.3% | £1,543,849 |
| May 2010 | 17.4% | £1,350,195 |
| May 2009 | -8.8% | £1,150,186 |
| May 2008 | 18% | £1,260,585 |
| May 2007 | 0% | £1,067,864 |
Rental Market Trendsin 15 Onslow Square
The current average rental value in the building is £7,321.
The 15 Onslow Square Rental Market has increased by 40.3% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| May 2026 | 5% | £7,321pcm |
| May 2025 | 4.9% | £6,972pcm |
| May 2024 | 1.5% | £6,650pcm |
| May 2023 | 13.5% | £6,552pcm |
| May 2022 | 26.4% | £5,775pcm |
| May 2021 | -8.9% | £4,569pcm |
| May 2020 | -3.3% | £5,013pcm |
| May 2019 | 3.4% | £5,182pcm |
| May 2018 | 2.9% | £5,011pcm |
| May 2017 | -6.7% | £4,869pcm |
| May 2016 | -2.4% | £5,216pcm |
| May 2015 | -1% | £5,345pcm |
| May 2014 | 0.4% | £5,401pcm |
| May 2013 | 0.9% | £5,378pcm |
| May 2012 | 3.1% | £5,331pcm |
| May 2011 | 12.4% | £5,170pcm |
| May 2010 | 15.2% | £4,600pcm |
| May 2009 | -14.5% | £3,994pcm |
| May 2008 | 9.9% | £4,670pcm |
| May 2007 | 0% | £4,250pcm |
Explore Propertiesin 15, Onslow Square, London, SW7 3NJ
- Flat 1, 15, Onslow Square, London, SW7 3NJ
- Flat 2, 15, Onslow Square, London, SW7 3NJ
- Flat 3, 15, Onslow Square, London, SW7 3NJ
- Flat 4, 15, Onslow Square, London, SW7 3NJ
- Flat 5, 15, Onslow Square, London, SW7 3NJ
- Flat 6, 15, Onslow Square, London, SW7 3NJ
- Flat 7, 15, Onslow Square, London, SW7 3NJ
Property Typesin 15 Onslow Square
- 7 other addresses of unknown type
- Unknown (7)
Energy Efficiencyof properties in 15 Onslow Square
- Energy Performance Certificate (EPC) surveys conducted for 0 properties.
- The dominant rating is no_epc_ratings.
- A (0)
- E (0)
- B (0)
- F (0)
- C (0)
- G (0)
- D (0)
- No EPC (7)
Top 3 Most Expensive Saleson Onslow Square, London, SW7
Schools Nearbyto 15, Onslow Square, London, SW7 3NJ
The nearest primary school to 15, Onslow Square, London, SW7 3NJ is Oratory Roman Catholic Primary School which is 300 metres away.
- 300mOratory Roman Catholic Primary School
- 400mMarlborough Primary School
- 500mOur Lady of Victories RC Primary School
The nearest secondary school is St. Thomas More Language College which is 700 metres away.
- 700mSt. Thomas More Language College
- 1.8kmChelsea Academy
- 1.9kmThe London Oratory School
More reading links
Public Transport Nearbyto 15, Onslow Square, London, SW7 3NJ
The closest station to 15, Onslow Square, London, SW7 3NJ is South Kensington station which is 200 metres away.
- 200mSouth Kensington
- 700mGloucester Road
- 1.0kmKnightsbridge
- 1.1kmSloane Square
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