40  Onslow Gardens

40 Onslow GardensHouse Prices / London, Kensington and Chelsea, Onslow Gardens, SW7 3PY

Last updated Jun 2026

Key Building Insights

40 Onslow Gardens is a residential building situated on Onslow Gardens, London, SW7 with 2 addresses.

It ranks as the 111th largest and 1153rd most expensive of the 1,225 buildings in the SW7 area. The dominant property type is a period flat built between 1800 and 1911.

The building contains a total of 2 properties: 2 flats.

2
Properties
  • Flats

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House Pricesin 40 Onslow Gardens

Sale prices range from £1,823,908 for 2 bedroom leasehold flats (990 ft2) to £4,295,158 for 3 bedroom leasehold flats with a garden (2,292 ft2) .

Monthly rental prices range from £5,625 pcm for 2 bed flats to £12,615 pcm for 3 bed flats.

The gross rental yield is between 3.5% and 3.7%.

The average value per square foot is £1,858.

Average Sale Value
£3,059,533
Average Rental Value
£9,120 pcm
Average Rental Yield
3.6% /year
Average Value Per Sqft
£1,858 /ft2
Prices last updated 1st June 2026
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Sales History
in 40, Onslow Gardens, London, SW7 3PY

The last sale was on 24th July 2015 for £4,050,000 and since then the market in the area has increased by 34.5%. The building has had a total of 4 sales since 1995.

40, Onslow Gardens, London, SW7 3PY has seen no sales in the last three years and no sales in the last twelve months.

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Property Typesin 40 Onslow Gardens

  • 1 period flat built between 1800 and 1911
  • 1 other address of unknown type
  • period flat (1)
  • Unknown (1)
Energy Efficiency

Energy Efficiencyof properties in 40 Onslow Gardens

  • Energy Performance Certificate (EPC) surveys conducted for 1 property.
  • The dominant rating is C.
  • A (0)
  • E (0)
  • B (0)
  • F (0)
  • C (1)
  • G (0)
  • D (0)
  • No EPC (1)
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Schools Nearby

Schools Nearby

The nearest primary school to 40, Onslow Gardens, London, SW7 3PY is Our Lady of Victories RC Primary School, which is 200 metres away.
  • 200
    m
    Our Lady of Victories RC Primary School
  • 500
    m
    Oratory Roman Catholic Primary School
  • 600
    m
    Bousfield Primary School
The nearest secondary school is St. Thomas More Language College, which is 1.1 kilometres away.
  • 1.1
    km
    St. Thomas More Language College
  • 1.6
    km
    The London Oratory School
  • 1.6
    km
    Chelsea Academy
More reading links
Source: Ofsted 2026
Public Transport Nearby

Public Transport Nearby

The closest station to 40, Onslow Gardens, London, SW7 3PY is South Kensington station, which is 400 metres away.

  • 400
    m
    South Kensington
  • 500
    m
    Gloucester Road
  • 1.1
    km
    Earl's Court
  • 1.3
    km
    West Brompton
Source: TFL & National Rail
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