23  St. James's Square

23 St. James's SquareHouse Prices / London, Westminster, St. James's Square, SW1Y 4JH

Last updated Jun 2026

Key Building Insights

23 St. James's Square is a residential building situated on St. James's Square, London, SW1 with 9 addresses.

It ranks as the 2223rd largest and 2659th most expensive of the 2,974 buildings in the SW1Y area. The dominant property type is a modern flat built after 1980.

The building contains a total of 9 properties: 9 flats.

9
Properties
  • Flats

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House Pricesin 23 St. James's Square

Sale prices range from £800,969 for 2 bedroom leasehold flats with a balcony (927 ft2) to £2,486,583 for 3 bedroom leasehold flats with a balcony (1,073 ft2) .

Monthly rental prices range from £3,657 pcm for 2 bed flats to £8,395 pcm for 3 bed flats.

The gross rental yield is between 4.1% and 5.5%.

The average value per square foot is £2,283.

Average Sale Value
£1,654,506
Average Rental Value
£5,948 pcm
Average Rental Yield
4.3% /year
Average Value Per Sqft
£2,283 /ft2
Prices last updated 1st June 2026
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Sales History
in 23, St. James's Square, London, SW1

The last sale was on 16th June 2021 for £2,000,000 and since then the market in the area has decreased by 7.8%. The building has had a total of 16 sales since 1995.

23, St. James's Square, London, SW1 has seen no sales in the last three years and no sales in the last twelve months.

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Property Typesin 23 St. James's Square

  • 4 modern flats built after 1980
  • 5 other addresses of unknown type
  • modern flat (4)
  • Unknown (5)
Energy Efficiency

Energy Efficiencyof properties in 23 St. James's Square

  • Energy Performance Certificate (EPC) surveys conducted for 4 properties.
  • The dominant rating is C.
  • A (0)
  • E (0)
  • B (0)
  • F (0)
  • C (3)
  • G (0)
  • D (1)
  • No EPC (5)
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Schools Nearby

Schools Nearby

The nearest primary school to 23, St. James's Square, London, SW1 is Soho Parish CofE Primary School, which is 600 metres away.
  • 600
    m
    Soho Parish CofE Primary School
  • 1.1
    km
    St Matthew's School, Westminster
  • 1.1
    km
    St George's Hanover Square CofE Primary School
The nearest secondary school is Westminster City School, which is 1.0 kilometres away.
  • 1.0
    km
    Westminster City School
  • 1.2
    km
    The Grey Coat Hospital
  • 1.9
    km
    London Nautical, City of London Academy
More reading links
Source: Ofsted 2026
Public Transport Nearby

Public Transport Nearby

The closest station to 23, St. James's Square, London, SW1 is Piccadilly Circus station, which is 300 metres away.

  • 300
    m
    Piccadilly Circus
  • 500
    m
    Green Park
  • 700
    m
    Charing Cross
  • 700
    m
    Leicester Square
Source: TfL
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