42  Portman Square

42 Portman SquareHouse Prices / London, Westminster, Portman Square, W1H 6AR

Last updated Jun 2026

Key Building Insights

42 Portman Square is a residential building situated on Portman Square, London, W1 with 20 addresses.

It ranks as the 2571st largest and 1294th most expensive of the 2,768 buildings in the W1H area. The dominant property type is a modern flat built after 1980.

The building contains a total of 20 properties: 20 flats.

20
Properties
  • Flats

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House Pricesin 42 Portman Square

Sale prices range from £553,526 for 1 bedroom Leasehold flats (527 ft2) to £3,796,880 for 4 bedroom Leasehold flats (1,689 ft2) .

Monthly rental prices range from £2,646 pcm for 1 bed flats to £12,186 pcm for 4 bed flats.

The gross rental yield is between 3.9% and 5.7%.

The average value per square foot is £1,420.

Average Sale Value
£1,316,731
Average Rental Value
£5,492 pcm
Average Rental Yield
5.0% /year
Average Value Per Sqft
£1,420 /ft2
Prices last updated 1st June 2026
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properties list title title

Property Typesin 42 Portman Square

  • 20 modern flats built after 1980
  • modern flat (20)
Energy Efficiency

Energy Efficiencyof properties in 42 Portman Square

  • Energy Performance Certificate (EPC) surveys conducted for 20 properties.
  • The dominant rating is C.
  • A (0)
  • E (0)
  • B (0)
  • F (0)
  • C (19)
  • G (0)
  • D (1)
  • No EPC (0)
properties list title title
Schools Nearby

Schools Nearby

The nearest primary school to 42, Portman Square, London, W1 is St Vincent's Catholic Primary School, which is 400 metres away.
  • 400
    m
    St Vincent's Catholic Primary School
  • 700
    m
    Hampden Gurney CofE Primary School
  • 800
    m
    St George's Hanover Square CofE Primary School
The nearest secondary school is The St Marylebone CofE School, which is 800 metres away.
  • 800
    m
    The St Marylebone CofE School
  • 1.6
    km
    Marylebone Boys' School
  • 2.2
    km
    Westminster City School
More reading links
Source: Ofsted 2026
Public Transport Nearby

Public Transport Nearby

The closest station to 42, Portman Square, London, W1 is Marble Arch station, which is 300 metres away.

  • 300
    m
    Marble Arch
  • 400
    m
    Bond Street
  • 400
    m
    Bond Street (Elizabeth line)
  • 800
    m
    Baker Street
Source: TFL & National Rail
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