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Onslow Square

Onslow SquareHouse Prices / London, Kensington and Chelsea

Last updated Jun 2026

Key Street Insights

Onslow Square is a residential street with 321 addresses.

It ranks as the 141st largest and 62nd most expensive of the 153 streets in the SW7 area. The dominant property type is a period flat built between 1800 and 1911.

The street contains a total of 321 properties: 2 houses and 319 flats.

321
Properties
  • Houses
  • Flats

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House Priceson Onslow Square

Sale prices range from £416,181 for 1 bedroom leasehold flats with a garden (258 ft2) to £7,739,750 for 3 bedroom leasehold flats with a garden (2,981 ft2) .

Monthly rental prices range from £1,421 pcm for 1 bed flats to £22,613 pcm for 3 bed flats.

The gross rental yield is between 3.1% and 7.2%.

The average value per square foot is £1,752.

Average Sale Value
£2,262,632
Average Rental Value
£7,356 pcm
Average Rental Yield
3.9% /year
Average Value Per Sqft
£1,752 /ft2
Prices last updated 1st June 2026
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Properties and Buildingson Onslow Square, London, SW7

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Sales History
on Onslow Square, London, SW7

The last sale was on 20th November 2025 for £2,750,000 and since then the market in the area has increased by 2.7%. The street has had a total of 412 sales since 1995.

Onslow Square, London, SW7 has seen 33 sales in the last three years and 4 sales in the last twelve months.

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Nearby Streetsto Onslow Square, London, SW7

Onslow Square, London, SW7 is the 141st largest and the 62nd most expensive street in the SW7 area.

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Postcodeson Onslow Square, London, SW7

There are 11 postcodes on Onslow Square, London, SW7.

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Property Typesin Onslow Square

  • 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 Efficiencyof properties on Onslow Square

  • Energy Performance Certificate (EPC) surveys conducted for 226 properties.
  • The dominant rating is C.
  • A (0)
  • E (31)
  • B (3)
  • F (3)
  • C (108)
  • G (0)
  • D (81)
  • No EPC (95)
Schools Nearby

Schools Nearbyto Onslow Square, London, SW7

The nearest primary school to Onslow Square, London, SW7 is Oratory Roman Catholic Primary School which is 300 metres away.
  • 300
    m
    Oratory Roman Catholic Primary School
  • 400
    m
    Marlborough Primary School
  • 500
    m
    Our Lady of Victories RC Primary School
The nearest secondary school is St. Thomas More Language College which is 700 metres away.
  • 700
    m
    St. Thomas More Language College
  • 1.8
    km
    Chelsea Academy
  • 1.9
    km
    The London Oratory School
More reading links
Source: Ofsted 2026
Public Transport Nearby

Public Transport Nearbyto Onslow Square, London, SW7

The closest station to Onslow Square, London, SW7 is South Kensington station which is 200 metres away.

  • 200
    m
    South Kensington
  • 700
    m
    Gloucester Road
  • 1.0
    km
    Knightsbridge
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