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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
55, Onslow Square, London, SW7 3LR
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55 Onslow SquareHouse Prices / London, Kensington and Chelsea, Onslow Square, SW7 3LR
Last updated May 2026
Key Building Insights
55 Onslow Square is a residential building situated on Onslow Square, London, SW7 with 7 addresses.
It ranks as the 783rd largest and 1179th most expensive of the 1,228 buildings in the SW7 area. The dominant property type is a period flat built between 1800 and 1911.
The building contains a total of 7 properties: 7 flats.
7
Properties
- Flats
Key Building Insights
55 Onslow Square is a residential building situated on Onslow Square, London, SW7 with 7 addresses.
It ranks as the 783rd largest and 1179th most expensive of the 1,228 buildings in the SW7 area. The dominant property type is a period flat built between 1800 and 1911.
The building contains a total of 7 properties: 7 flats.
7
Properties
- Flats
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House Pricesin 55 Onslow Square
Sale prices range from £1,171,382 for 1 bedroom leasehold flats with a garden (516 ft2) to £5,530,783 for 4 bedroom leasehold flats (2,443 ft2) .
Monthly rental prices range from £3,843 pcm for 1 bed flats to £18,886 pcm for 4 bed flats.
The gross rental yield is between 3.9% and 4.3%.
The average value per square foot is £2,266.
Average Sale Value
£3,504,169
Average Rental Value
£11,917 pcm
Average Rental Yield
4.1% /year
Average Value Per Sqft
£2,266 /ft2
Sales Market Trendsin 55 Onslow Square
The last sale in 55 Onslow Square sold for £3,725,000 on 22nd July 2022. Since then prices are down an average of 19.0%.
The current average value in the building is £3,504,169.
The 55 Onslow Square Sales Market has decreased by 18.1% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | -1.3% | £3,504,169 |
| April 2025 | -4.4% | £3,551,231 |
| April 2024 | -2.2% | £3,715,106 |
| April 2023 | -3.6% | £3,800,520 |
| April 2022 | 6.4% | £3,943,706 |
| April 2021 | -3.2% | £3,706,180 |
| April 2020 | 3.1% | £3,827,678 |
| April 2019 | -2.2% | £3,712,432 |
| April 2018 | -3.3% | £3,797,355 |
| April 2017 | -8.2% | £3,926,562 |
| April 2016 | -2.4% | £4,278,069 |
| April 2015 | 2.2% | £4,385,066 |
| April 2014 | 16.9% | £4,289,272 |
| April 2013 | 4.1% | £3,668,309 |
| April 2012 | 15.6% | £3,523,053 |
| April 2011 | 14.9% | £3,047,743 |
| April 2010 | 13.3% | £2,652,813 |
| April 2009 | -11.9% | £2,340,700 |
| April 2008 | 21.6% | £2,657,371 |
| April 2007 | 0% | £2,184,879 |
Rental Market Trendsin 55 Onslow Square
The current average rental value in the building is £11,917.
The 55 Onslow Square Rental Market has increased by 37.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 7.9% | £11,917pcm |
| April 2025 | 4% | £11,042pcm |
| April 2024 | 1% | £10,621pcm |
| April 2023 | 12.9% | £10,517pcm |
| April 2022 | 26.4% | £9,313pcm |
| April 2021 | -11.3% | £7,367pcm |
| April 2020 | -1.7% | £8,301pcm |
| April 2019 | 2.6% | £8,445pcm |
| April 2018 | 0.8% | £8,230pcm |
| April 2017 | -5.5% | £8,167pcm |
| April 2016 | -2.9% | £8,645pcm |
| April 2015 | 1.7% | £8,907pcm |
| April 2014 | 0.6% | £8,754pcm |
| April 2013 | 0.1% | £8,704pcm |
| April 2012 | 4.1% | £8,697pcm |
| April 2011 | 13.7% | £8,352pcm |
| April 2010 | 9.8% | £7,344pcm |
| April 2009 | -15.8% | £6,690pcm |
| April 2008 | 10.1% | £7,948pcm |
| April 2007 | 0% | £7,218pcm |
Explore Propertiesin 55, Onslow Square, London, SW7 3LR
- Flat 1, 55, Onslow Square, London, SW7 3LR
- Flat 2, 55, Onslow Square, London, SW7 3LR3 bed flat
- Flat 3, 55, Onslow Square, London, SW7 3LR4 bed period flat
- Flat 4, 55, Onslow Square, London, SW7 3LR
- Flat 5, 55, Onslow Square, London, SW7 3LR4 bed period flat
- Flat 6, 55, Onslow Square, London, SW7 3LR3 bed flat
- Flat 7, 55, Onslow Square, London, SW7 3LR3 bed period flat
Sales Historyin 55, Onslow Square, London, SW7 3LR
The last sale was on 22nd July 2022 for £3,725,000 and since then the market in the area has decreased by 19.0%. The building has had a total of 9 sales since 1995.
55, Onslow Square, London, SW7 3LR has seen no sales in the last three years and no sales in the last twelve months.
Sold Jul 2022£3,725,000 | 4 Bed Flat55, Onslow SquareFlat 3, 55, Onslow Square, London, SW7 3LR
Sold May 2014£3,150,000 | 3 Bed Flat55, Onslow SquareFlat 7, 55, Onslow Square, London, SW7 3LR
Sold Sep 2011£4,490,000 | 3 Bed Flat55, Onslow SquareFlat 2, 55, Onslow Square, London, SW7 3LR
Sold Jun 2010£3,995,200 | 3 Bed Flat55, Onslow SquareFlat 2, 55, Onslow Square, London, SW7 3LR
Sold Aug 2009£2,150,000 | 3 Bed Flat55, Onslow SquareFlat 6, 55, Onslow Square, London, SW7 3LR
Sold Jun 2006£1,880,000 | 3 Bed Flat55, Onslow SquareFlat 2, 55, Onslow Square, London, SW7 3LR
Sold Nov 2005£1,130,000 | 3 Bed Flat55, Onslow SquareFlat 6, 55, Onslow Square, London, SW7 3LR
Sold Jun 1998£700,000 | 3 Bed Flat55, Onslow SquareFlat 2, 55, Onslow Square, London, SW7 3LR
Sold Jan 1995£800,000 | 4 Bed Flat55, Onslow SquareFlat 5, 55, Onslow Square, London, SW7 3LR
Property Typesin 55 Onslow Square
- 3 period flats built between 1800 and 1911
- 2 flats of an unknown age
- 2 other addresses of unknown type
- period flat (3)
- flat (2)
- Unknown (2)
Energy Efficiencyof properties in 55 Onslow Square
- Energy Performance Certificate (EPC) surveys conducted for 3 properties.
- The dominant rating is C.
- A (0)
- E (1)
- B (0)
- F (0)
- C (1)
- G (0)
- D (1)
- No EPC (4)
Top 3 Most Expensive Saleson Onslow Square, London, SW7
Schools Nearbyto 55, Onslow Square, London, SW7 3LR
The nearest primary school to 55, Onslow Square, London, SW7 3LR is Oratory Roman Catholic Primary School which is 379 metres away.
- 379mOratory Roman Catholic Primary School
- 388mOur Lady of Victories RC Primary School
- 540mMarlborough Primary School
The nearest secondary school is St. Thomas More Language College which is 809 metres away.
- 809mSt. Thomas More Language College
- 1.8kmChelsea Academy
- 1.9kmThe London Oratory School
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Public Transport Nearbyto 55, Onslow Square, London, SW7 3LR
The closest station to 55, Onslow Square, London, SW7 3LR is South Kensington station which is 100 metres away.
- 123mSouth Kensington
- 624mGloucester Road
- 1.1kmKnightsbridge
- 1.2kmSloane Square
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