Key Street Insights
Onslow Square is a residential street with 321 addresses.
It ranks as the 141st largest and 60th most expensive of the 153 streets in the SW7 area. The most common property type is a period flat built between 1800 and 1911.
The street contains a total of 321 properties: 1 house, 309 flats and 11 other properties.
- Ave. Sale Price
- £2,225,134
- 10 Year change
- down 17.8%
- Ave. Rental Price
- £7,373pcm
- 10 Year change
- up 39.9%
- Ave. £ per ft²
- £1,693/ft²
- Ave. Gross Yield
- 4.0%/year/yr
Key Street Insights
Onslow Square is a residential street with 321 addresses.
It ranks as the 141st largest and 60th most expensive of the 153 streets in the SW7 area. The most common property type is a period flat built between 1800 and 1911.
The street contains a total of 321 properties: 1 house, 309 flats and 11 other properties.
- Ave. Sale Price
- £2,225,134
- 10 Year change
- down 17.8%
- Ave. Rental Price
- £7,373pcm
- 10 Year change
- up 39.9%
- Ave. £ per ft²
- £1,693/ft²
- Ave. Gross Yield
- 4.0%/year/yr
Explore Properties on Onslow Square, London, SW7
- Malvern Court
Early-century Building | 45 Units
- Park Cottage
Flat
- Park House
House
- 1 Onslow Square
3 Bed Period Flat
- 2 Onslow Square
Building | 2 Flats
Sales Market Trends
The last sale on Onslow Square sold for £2,280,000 on 23rd December 2025. Since then prices are down an average of 1.7%.
The current average value in the street is £2,225,134.
The Onslow Square Sales Market has decreased by 17.8% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| July 2026 | -3.2% | £2,225,134 |
| July 2025 | -3.3% | £2,297,675 |
| July 2024 | -3.4% | £2,375,098 |
| July 2023 | -3.4% | £2,458,989 |
| July 2022 | 4.3% | £2,544,886 |
| July 2021 | -1.3% | £2,438,861 |
| July 2020 | 3.3% | £2,471,719 |
| July 2019 | -1.2% | £2,393,123 |
| July 2018 | -4.8% | £2,421,956 |
| July 2017 | -6.1% | £2,543,083 |
| July 2016 | -3.3% | £2,708,032 |
| July 2015 | -0.1% | £2,799,221 |
| July 2014 | 14.2% | £2,802,462 |
| July 2013 | 5.5% | £2,454,770 |
| July 2012 | 13.4% | £2,327,032 |
| July 2011 | 14.7% | £2,052,044 |
| July 2010 | 14.9% | £1,788,876 |
| July 2009 | -4.2% | £1,557,269 |
| July 2008 | 5.5% | £1,625,062 |
| July 2007 | 0% | £1,540,890 |
Rental Market Trends
The current average rental value in the street is £7,373.
The Onslow Square Rental Market has increased by 39.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| July 2026 | 6.9% | £7,373pcm |
| July 2025 | 3.8% | £6,896pcm |
| July 2024 | 1.4% | £6,641pcm |
| July 2023 | 10.4% | £6,547pcm |
| July 2022 | 23.4% | £5,928pcm |
| July 2021 | -2% | £4,802pcm |
| July 2020 | -7.8% | £4,900pcm |
| July 2019 | 3.3% | £5,316pcm |
| July 2018 | 1.4% | £5,144pcm |
| July 2017 | -3.7% | £5,075pcm |
| July 2016 | -4.6% | £5,271pcm |
| July 2015 | 2.4% | £5,526pcm |
| July 2014 | -0.1% | £5,397pcm |
| July 2013 | 0.8% | £5,404pcm |
| July 2012 | 0.9% | £5,359pcm |
| July 2011 | 8.9% | £5,314pcm |
| July 2010 | 16.3% | £4,881pcm |
| July 2009 | -11.6% | £4,197pcm |
| July 2008 | 2.5% | £4,745pcm |
| July 2007 | 0% | £4,628pcm |
Sales History
The last recorded sale was on 23rd December 2025 for £2,280,000 and since then the market in the area has decreased by 1.7%.
Onslow Square, London, SW7 has had 3 sales since 1995, 3 of them in the last twelve months.
- Sold Dec 2025£2,280,000 | 3 Bed FlatFlat 8, 20, Onslow Square, London, SW7 3NPFlat 8, 20, Onslow Square, London, SW7 3NP
- Sold Nov 2025£2,750,000 | 3 Bed FlatFlat 2, 11, Onslow Square, London, SW7 3NJFlat 2, 11, Onslow Square, London, SW7 3NJ
- Sold Oct 2025£1,725,000 | 3 Bed FlatFlat 11, Malvern Court, Onslow Square, London, SW7 3HUFlat 11, Malvern Court, Onslow Square, London, SW7 3HU
Top 3 Most Expensive Sales
- Sold Sep 2022£17,000,000 | 1 Bed Flat57, Onslow Square, London, SW7 3LR57, Onslow Square, London, SW7 3LR
- Sold Dec 2017£7,550,000 | 4 Bed FlatFlat 3, 32, Onslow Square, London, SW7 3NSFlat 3, 32, Onslow Square, London, SW7 3NS
- Sold May 2020£6,700,000 | 2 Bed FlatFlat 2, 38, Onslow Square, London, SW7 3NSFlat 2, 38, Onslow Square, London, SW7 3NS
Nearby Streets
Onslow Square, London, SW7 is the 141st largest and the 60th most expensive street in the SW7 area.
- Sydney Place, London, SW719 Addresses|105 m away
- Sumner Place Mews, London, SW74 Addresses|110 m away
- Onslow Crescent, London, SW781 Addresses|139 m away
- Pelham Place, London, SW724 Addresses|147 m away
- Sumner Place, London, SW745 Addresses|148 m away
- Pelham Crescent, London, SW728 Addresses|163 m away
Sections of this street
There are 11 postcodes on Onslow Square, London, SW7.
- House prices in SW7 3LR32 Addresses
- House prices in SW7 3LS26 Addresses
- House prices in SW7 3NP34 Addresses
- House prices in SW7 3NJ53 Addresses
- House prices in SW7 3NS30 Addresses
- House prices in SW7 3NH23 Addresses
Property Types
- 1 period house built between 1800 and 1911
- 240 period flats built between 1800 and 1911
- 23 mid-century flats built between 1936 and 1979
- 1 flat of an unknown age
- 45 early-century flats built between 1912 and 1935
- 11 other addresses of unknown type
- period house (1)
- period flat (240)
- mid-century flat (23)
- flat (1)
- early-century flat (45)
- Unknown (11)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys have been conducted for 226 properties.
- The most common rating is C.
- A (0)
- E (31)
- B (3)
- F (3)
- C (108)
- G (0)
- D (81)
- No EPC (95)
Schools Nearby
- Oratory Roman Catholic Primary School300 m away
- Marlborough Primary School400 m away
- Our Lady of Victories RC Primary School500 m away
- St. Thomas More Language College700 m away
- Chelsea Academy1.8 km away
- The London Oratory School1.9 km away
More reading links
Public Transport Nearby
The closest station to Onslow Square, London, SW7 is South Kensington station, which is 200 metres away.
- South Kensington|200 m away
- Gloucester Road|700 m away
- Knightsbridge|1.0 km away
