15 Portman SquareHouse Prices / London, Westminster, Portman Square, W1H 6LL

Last updated Jun 2026

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15 Portman Square is a residential building situated on Portman Square, London, W1 with 115 addresses.

It ranks as the 2755th largest and 2123rd most expensive of the 2,768 buildings in the W1H area. The dominant property type is a early-century flat built between 1912 and 1935.

The building contains a total of 115 properties: 115 flats.

115

Properties

Flats

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15 Portman Square is a residential building situated on Portman Square, London, W1 with 115 addresses.

The building contains a total of 115 properties: 115 flats.

115

Properties

Flats

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House Pricesin 15 Portman Square

Sale prices range from £384,503 for 1 bedroom leasehold flats (258 ft²) to £4,481,560 for 4 bedroom leasehold flats (2,271 ft²) .

Monthly rental prices range from £1,579 pcm for 1 bed flats to £14,846 pcm for 4 bed flats.

The gross rental yield is between 3.9% and 5.6%.

The average value per square foot is £1,580.

Average Sale Value

£1,582,675

Average Rental Value

£6,075 pcm

Average Rental Yield

4.6% /year

Average Value Per Sqft

£1,580 /ft²

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Prices last updated 1st June 2026

Sales Market Trendsin 15 Portman Square

The last sale in 15 Portman Square sold for £2,700,000 on 7th October 2025. Since then prices are up an average of 3.1%.

The current average value in the building is £1,582,675.
The 15 Portman Square Sales Market has decreased by 12.9% over the last 10 years.

Show table

Show chart

Period	Year on Year	Average Price
May 2026	-0.6%	£1,582,675
May 2025	-2.7%	£1,592,253
May 2024	-0.6%	£1,635,807
May 2023	-1.5%	£1,645,581
May 2022	5.4%	£1,669,812
May 2021	-3.8%	£1,583,820
May 2020	1.2%	£1,646,008
May 2019	-3.8%	£1,625,980
May 2018	-1.4%	£1,689,924
May 2017	-5.7%	£1,713,188
May 2016	-1.5%	£1,817,144
May 2015	5%	£1,844,188
May 2014	15.4%	£1,756,252
May 2013	14.4%	£1,522,342
May 2012	15.7%	£1,331,201
May 2011	9.8%	£1,150,974
May 2010	13.3%	£1,048,359
May 2009	-9.3%	£925,304
May 2008	27.4%	£1,020,388
May 2007	0%	£800,924

Rental Market Trendsin 15 Portman Square

The current average rental value in the building is £6,075.
The 15 Portman Square Rental Market has increased by 32.7% over the last 10 years.

Show table

Show chart

Period	Year on Year	Average Price
May 2026	5.8%	£6,075pcm
May 2025	2.4%	£5,744pcm
May 2024	4.9%	£5,609pcm
May 2023	9.3%	£5,348pcm
May 2022	22.5%	£4,893pcm
May 2021	-10.8%	£3,996pcm
May 2020	-1.9%	£4,481pcm
May 2019	1.2%	£4,565pcm
May 2018	3.2%	£4,509pcm
May 2017	-4.5%	£4,371pcm
May 2016	-0.2%	£4,579pcm
May 2015	-0.9%	£4,589pcm
May 2014	2.2%	£4,631pcm
May 2013	-4.3%	£4,529pcm
May 2012	5.9%	£4,734pcm
May 2011	15%	£4,471pcm
May 2010	12.5%	£3,888pcm
May 2009	-10.2%	£3,455pcm
May 2008	1%	£3,847pcm
May 2007	0%	£3,809pcm

Explore Propertiesin 15, Portman Square, London, W1

Sales History
in 15, Portman Square, London, W1

The last sale was on 7th October 2025 for £2,700,000 and since then the market in the area has increased by 3.1%. The building has had a total of 190 sales since 1995.

15, Portman Square, London, W1 has seen 11 sales in the last three years and 2 sales in the last twelve months.

Sold Oct 2025£2,700,000 | 3 Bed Flat15, Portman Square

Sold Jul 2025£2,100,000 | 3 Bed Flat15, Portman Square

Sold Feb 2025£25,000 | 1 Bed Flat15, Portman Square

Sold Jun 2024£2,000,000 | 3 Bed Flat15, Portman Square

Sold Dec 2023£1,340,000 | 2 Bed Flat15, Portman Square

Sold Nov 2023£975,000 | 3 Bed Flat15, Portman Square

Sold Nov 2023£1,200,000 | 2 Bed Flat15, Portman Square

Sold Oct 2023£450,000 | 1 Bed Flat15, Portman Square

Sold Aug 2023£2,715,000 | 3 Bed Flat15, Portman Square

Sold Jul 2023£1,950,000 | 2 Bed Flat15, Portman Square

Sold Jan 2023£2,545,000 | 3 Bed Flat15, Portman Square

Sold Dec 2022£920,000 | 2 Bed Flat15, Portman Square

Sold Jul 2022£2,150,000 | 3 Bed Flat15, Portman Square

Sold Jul 2022£2,000,000 | 3 Bed Flat15, Portman Square

Sold Jul 2021£1,700,000 | 2 Bed Flat15, Portman Square

Sold Mar 2021£1,350,000 | 2 Bed Flat15, Portman Square

Sold Feb 2021£2,000,000 | 3 Bed Flat15, Portman Square

Sold Jan 2021£3,500,000 | 3 Bed Flat15, Portman Square

Sold Nov 2020£750,000 | 3 Bed Flat15, Portman Square

Sold Jul 2020£3,150,000 | 3 Bed Flat15, Portman Square

Sold Feb 2020£1,260,000 | 2 Bed Flat15, Portman Square

Sold Jan 2020£1,430,000 | 3 Bed Flat15, Portman Square

Sold Jul 2019£2,050,000 | 3 Bed Flat15, Portman Square

Sold Jun 2018£3,015,000 | 3 Bed Flat15, Portman Square

Sold Feb 2018£2,252,056 | 3 Bed Flat15, Portman Square

Sold Jan 2018£700,000 | 2 Bed Flat15, Portman Square

Sold Nov 2017£840,000 | 2 Bed Flat15, Portman Square

Sold Nov 2017£3,350,000 | 3 Bed Flat15, Portman Square

Sold Oct 2017£2,100,000 | 3 Bed Flat15, Portman Square

Sold Aug 2017£660,000 | 2 Bed Flat15, Portman Square

Sold Jul 2017£1,385,000 | 2 Bed Flat15, Portman Square

Sold Mar 2017£1,000,000 | 3 Bed Flat15, Portman Square

Sold Dec 2016£1,150,000 | 2 Bed Flat15, Portman Square

Sold Aug 2016£1,500,000 | 3 Bed Flat15, Portman Square

Sold Jul 2016£2,100,000 | 3 Bed Flat15, Portman Square

Sold Mar 2016£2,000,000 | 3 Bed Flat15, Portman Square

Sold Dec 2015£1,700,000 | 3 Bed Flat15, Portman Square

Sold May 2015£2,000,000 | 2 Bed Flat15, Portman Square

Sold Mar 2015£1,820,000 | 2 Bed Flat15, Portman Square

Sold Aug 2014£1,350,000 | 2 Bed Flat15, Portman Square

Sold Oct 2013£5,250,000 | 4 Bed Flat15, Portman Square

Sold Oct 2013£685,000 | 2 Bed Flat15, Portman Square

Sold Sep 2013£975,000 | 2 Bed Flat15, Portman Square

Sold Sep 2013£1,900,000 | 3 Bed Flat15, Portman Square

Sold May 2013£564,000 | 2 Bed Flat15, Portman Square

Sold May 2013£735,000 | 2 Bed Flat15, Portman Square

Sold Nov 2012£732,000 | 2 Bed Flat15, Portman Square

Sold Jul 2012£1,650,000 | 3 Bed Flat15, Portman Square

Sold Jun 2012£249,975 | 3 Bed Flat15, Portman Square

Sold Jun 2012£385,000 | 1 Bed Flat15, Portman Square

Sold Dec 2011£1,025,000 | 3 Bed Flat15, Portman Square

Sold Nov 2011£213,500 | 3 Bed Flat15, Portman Square

Sold Aug 2011£500,000 | 2 Bed Flat15, Portman Square

Sold Apr 2011£3,200,000 | 4 Bed Flat15, Portman Square

Sold Feb 2011£1,220,000 | 3 Bed Flat15, Portman Square

Sold Nov 2010£900,000 | 3 Bed Flat15, Portman Square

Sold Nov 2010£1,025,000 | 3 Bed Flat15, Portman Square

Sold Nov 2010£1,300,000 | 3 Bed Flat15, Portman Square

Sold Jun 2010£625,000 | 2 Bed Flat15, Portman Square

Sold Jun 2010£1,650,000 | 3 Bed Flat15, Portman Square

Sold Mar 2010£275,000 | 1 Bed Flat15, Portman Square

Sold Mar 2010£1,000,000 | 2 Bed Flat15, Portman Square

Sold Mar 2010£420,000 | 2 Bed Flat15, Portman Square

Sold Feb 2010£600,000 | 2 Bed Flat15, Portman Square

Sold Nov 2009£695,000 | 2 Bed Flat15, Portman Square

Sold Nov 2009£370,000 | 2 Bed Flat15, Portman Square

Sold Oct 2009£1,320,000 | 3 Bed Flat15, Portman Square

Sold Sep 2009£1,082,000 | 3 Bed Flat15, Portman Square

Sold Jun 2009£460,000 | 2 Bed Flat15, Portman Square

Sold Mar 2009£980,000 | 3 Bed Flat15, Portman Square

Sold Nov 2008£875,000 | 3 Bed Flat15, Portman Square

Sold Oct 2008£850,000 | 2 Bed Flat15, Portman Square

Sold Jun 2008£875,000 | 3 Bed Flat15, Portman Square

Sold Feb 2008£1,275,000 | 3 Bed Flat15, Portman Square

Sold Feb 2008£850,000 | 3 Bed Flat15, Portman Square

Sold Dec 2007£1,405,555 | 3 Bed Flat15, Portman Square

Sold Nov 2007£525,000 | 2 Bed Flat15, Portman Square

Sold Nov 2007£695,000 | 2 Bed Flat15, Portman Square

Sold Aug 2007£775,000 | 2 Bed Flat15, Portman Square

Sold Aug 2007£855,000 | 3 Bed Flat15, Portman Square

Sold Jul 2007£950,000 | 3 Bed Flat15, Portman Square

Sold Jun 2007£905,000 | 3 Bed Flat15, Portman Square

Sold Apr 2007£175,000 | 3 Bed Flat15, Portman Square

Sold Mar 2007£578,000 | 2 Bed Flat15, Portman Square

Sold Mar 2007£740,000 | 2 Bed Flat15, Portman Square

Sold Jan 2007£760,000 | 3 Bed Flat15, Portman Square

Sold Dec 2006£400,000 | 2 Bed Flat15, Portman Square

Sold Nov 2006£350,000 | 2 Bed Flat15, Portman Square

Sold Nov 2006£415,000 | 2 Bed Flat15, Portman Square

Sold Oct 2006£617,000 | 3 Bed Flat15, Portman Square

Sold Oct 2006£270,000 | 2 Bed Flat15, Portman Square

Sold Sep 2006£1,000,000 | 3 Bed Flat15, Portman Square

Sold Sep 2006£180,000 | 1 Bed Flat15, Portman Square

Sold Jun 2006£500,000 | 3 Bed Flat15, Portman Square

Sold Jun 2006£335,000 | 2 Bed Flat15, Portman Square

Sold Jun 2006£462,500 | 2 Bed Flat15, Portman Square

Sold Apr 2006£940,000 | 3 Bed Flat15, Portman Square

Sold Jan 2006£310,000 | 2 Bed Flat15, Portman Square

Sold Nov 2005£625,000 | 2 Bed Flat15, Portman Square

Sold Nov 2005£605,000 | 3 Bed Flat15, Portman Square

Sold Nov 2005£400,000 | 3 Bed Flat15, Portman Square

Sold Jul 2005£200,000 | 2 Bed Flat15, Portman Square

Sold Jun 2005£580,000 | 3 Bed Flat15, Portman Square

Sold Apr 2005£399,000 | 2 Bed Flat15, Portman Square

Sold Mar 2005£120,000 | 1 Bed Flat15, Portman Square

Sold Jan 2005£480,000 | 2 Bed Flat15, Portman Square

Sold Dec 2004£555,000 | 3 Bed Flat15, Portman Square

Sold Dec 2004£575,000 | 3 Bed Flat15, Portman Square

Sold Nov 2004£322,500 | 2 Bed Flat15, Portman Square

Sold Nov 2004£695,000 | 3 Bed Flat15, Portman Square

Sold Aug 2004£254,000 | 2 Bed Flat15, Portman Square

Sold Jul 2004£525,000 | 3 Bed Flat15, Portman Square

Sold Mar 2004£440,000 | 3 Bed Flat15, Portman Square

Sold Jan 2004£450,000 | 3 Bed Flat15, Portman Square

Sold Dec 2003£310,000 | 2 Bed Flat15, Portman Square

Sold Sep 2003£535,000 | 3 Bed Flat15, Portman Square

Sold Aug 2003£249,950 | 2 Bed Flat15, Portman Square

Sold Jul 2003£800,000 | 3 Bed Flat15, Portman Square

Sold Jun 2003£425,000 | 3 Bed Flat15, Portman Square

Sold Jun 2003£950,000 | 4 Bed Flat15, Portman Square

Sold May 2003£320,000 | 2 Bed Flat15, Portman Square

Sold Apr 2003£525,000 | 3 Bed Flat15, Portman Square

Sold Mar 2003£542,500 | 3 Bed Flat15, Portman Square

Sold Oct 2002£320,000 | 3 Bed Flat15, Portman Square

Sold Sep 2002£500,000 | 2 Bed Flat15, Portman Square

Sold Aug 2002£475,000 | 3 Bed Flat15, Portman Square

Sold Aug 2002£420,000 | 3 Bed Flat15, Portman Square

Sold Aug 2002£824,500 | 3 Bed Flat15, Portman Square

Sold Aug 2002£415,000 | 2 Bed Flat15, Portman Square

Sold Jul 2002£775,000 | 4 Bed Flat15, Portman Square

Sold Jun 2002£550,000 | 3 Bed Flat15, Portman Square

Sold Jun 2002£354,000 | 2 Bed Flat15, Portman Square

Sold Jun 2002£175,000 | 2 Bed Flat15, Portman Square

Sold May 2002£500,000 | 2 Bed Flat15, Portman Square

Sold Dec 2001£571,000 | 3 Bed Flat15, Portman Square

Sold Nov 2001£250,000 | 2 Bed Flat15, Portman Square

Sold Nov 2001£390,000 | 3 Bed Flat15, Portman Square

Sold Oct 2001£759,017 | 3 Bed Flat15, Portman Square

Sold Oct 2001£470,000 | 3 Bed Flat15, Portman Square

Sold Aug 2001£343,000 | 3 Bed Flat15, Portman Square

Sold Jul 2001£335,000 | 2 Bed Flat15, Portman Square

Sold Jul 2001£310,000 | 3 Bed Flat15, Portman Square

Sold May 2001£475,000 | 3 Bed Flat15, Portman Square

Sold Apr 2001£285,000 | 2 Bed Flat15, Portman Square

Sold Mar 2001£260,000 | 2 Bed Flat15, Portman Square

Sold Mar 2001£105,000 | 3 Bed Flat15, Portman Square

Sold Jan 2001£950,000 | 3 Bed Flat15, Portman Square

Sold Aug 2000£400,000 | 3 Bed Flat15, Portman Square

Sold Jun 2000£310,000 | 3 Bed Flat15, Portman Square

Sold Jun 2000£375,000 | 3 Bed Flat15, Portman Square

Sold Feb 2000£280,000 | 3 Bed Flat15, Portman Square

Sold Feb 2000£275,000 | 2 Bed Flat15, Portman Square

Sold Nov 1999£460,000 | 3 Bed Flat15, Portman Square

Sold Oct 1999£190,000 | 2 Bed Flat15, Portman Square

Sold Jun 1999£235,000 | 2 Bed Flat15, Portman Square

Sold Jun 1999£320,000 | 3 Bed Flat15, Portman Square

Sold May 1999£235,000 | 3 Bed Flat15, Portman Square

Sold May 1999£265,000 | 3 Bed Flat15, Portman Square

Sold Apr 1999£245,000 | 2 Bed Flat15, Portman Square

Sold Jan 1999£378,000 | 3 Bed Flat15, Portman Square

Sold Dec 1998£265,000 | 3 Bed Flat15, Portman Square

Sold Oct 1998£312,000 | 3 Bed Flat15, Portman Square

Sold Sep 1998£235,000 | 3 Bed Flat15, Portman Square

Sold Jun 1998£262,000 | 3 Bed Flat15, Portman Square

Sold May 1998£250,000 | 3 Bed Flat15, Portman Square

Sold May 1998£270,000 | 2 Bed Flat15, Portman Square

Sold May 1998£300,000 | 3 Bed Flat15, Portman Square

Sold Mar 1998£135,000 | 2 Bed Flat15, Portman Square

Sold Mar 1998£260,000 | 3 Bed Flat15, Portman Square

Sold Mar 1998£420,000 | 3 Bed Flat15, Portman Square

Sold Mar 1998£380,000 | 3 Bed Flat15, Portman Square

Sold Feb 1998£245,000 | 3 Bed Flat15, Portman Square

Sold Nov 1997£258,000 | 3 Bed Flat15, Portman Square

Sold Jul 1997£210,000 | 2 Bed Flat15, Portman Square

Sold Jul 1997£221,000 | 2 Bed Flat15, Portman Square

Sold Jun 1997£205,000 | 3 Bed Flat15, Portman Square

Sold May 1997£360,000 | 2 Bed Flat15, Portman Square

Sold May 1997£195,000 | 3 Bed Flat15, Portman Square

Sold Apr 1997£200,000 | 3 Bed Flat15, Portman Square

Sold Mar 1997£135,000 | 2 Bed Flat15, Portman Square

Sold Mar 1997£225,000 | 3 Bed Flat15, Portman Square

Sold Jan 1997£165,000 | 2 Bed Flat15, Portman Square

Sold Nov 1996£60,000 | 1 Bed Flat15, Portman Square

Sold Sep 1996£200,000 | 3 Bed Flat15, Portman Square

Sold Sep 1996£170,000 | 2 Bed Flat15, Portman Square

Sold Aug 1996£175,000 | 3 Bed Flat15, Portman Square

Sold Jun 1996£105,500 | 2 Bed Flat15, Portman Square

Sold May 1996£100,000 | 2 Bed Flat15, Portman Square

Sold Dec 1995£185,000 | 3 Bed Flat15, Portman Square

Property Typesin 15 Portman Square

9 flats of an unknown age
77 early-century flats built between 1912 and 1935
29 other addresses of unknown type

flat (9)
early-century flat (77)
Unknown (29)

Energy Efficiencyof properties in 15 Portman Square

Energy Performance Certificate (EPC) surveys conducted for 77 properties.
The dominant rating is C.

A (0)
E (5)
B (1)
F (0)
C (42)
G (0)
D (29)
No EPC (38)

Top 3 Most Expensive Saleson Portman Square, London, W1

Schools Nearby

The nearest primary school to 15, Portman Square, London, W1 is St Vincent's Catholic Primary School, which is 300 metres away.

300
m
St Vincent's Catholic Primary School
600
m
Hampden Gurney CofE Primary School
700
m
St Mary's Bryanston Square CofE School

The nearest secondary school is The St Marylebone CofE School, which is 700 metres away.

700
m
The St Marylebone CofE School
1.5
km
Marylebone Boys' School
2.2
km
Maria Fidelis Catholic School FCJ

Schools and house prices

Source: Ofsted 2026

Public Transport Nearby

The closest station to 15, Portman Square, London, W1 is Marble Arch station, which is 400 metres away.

400
m
Marble Arch
500
m
Bond Street
500
m
Bond Street (Elizabeth line)
700
m
Baker Street

Source: TFL & National Rail

Available Internet Speeds

According to recent data from Ofcom, ultrafast broadband is available in this area.

Ultrafast

10,000 mbps

Max upload

1,000 mbps

Max download

According to recent data from Ofcom, Ultrafast broadband is available in the area.

Max Upload

10,000 mbps

Max Download

1,000 mbps

Source: Ofcom (May 2026)

Risk of Flooding

According to data from the Environment Agency, the flood risk in this area is considered to be very low.

Very low floodriskin this area

Local Flood RiskVery low

Source: Environment Agency (2024)

Home Ownership Nearby

The recent census recorded whether a resident owned or rented their home.

In the area around 15, Portman Square, London, W1, 57.1% of property is privately rented and 23.6% is socially rented.

The graph below shows how this compares to Greater London and the rest of England & Wales.

This area

Greater London

England & Wales

Owned (Outright)

Owned (Mortgage)

Shared ownership

Rented (Social)

Rented (Private)

Source: ONS Census (2021)

Education Levels in the Area

The recent census recorded the highest level of education achieved by residents in the local area.

In the area around 15, Portman Square, London, W1, 27.6% of residents are recorded as possessing school level qualifications and 63.6% as possessing degree level qualifications.

The graph below shows how this compares to Greater London and the rest of England & Wales.

This area

Greater London

England & Wales

School Students

Students 16+

Degree educated

Other

Source: ONS Census (2021)

Average Age of Residents

Average age

The most recent census in 2021 recorded the age of all UK residents.

In the area around 15, Portman Square, London, W1, the average age was 41 and the most common age was 27.

Within this area

Within Greater London

England & Wales

Age distribution

The graph below shows how this compares to Greater London and the rest of England & Wales

Source: ONS Census (2021)

Number of Second Homes

The recent census recorded whether a property was a primary or secondary home for the resident.

In the area around 15, Portman Square, London, W1, 2.8% of property was a second home.

Comparison figures for Greater London and the rest of England & Wales are listed below.

2.8%

Within this area

1.5%

Within Greater London

0.8%

England & Wales

Source: ONS Census (2021)

Average Cars per Home

The recent census recorded the number of cars registered in each household.

In the area around 15, Portman Square, London, W1, there are an average of 0.5 cars per household.

See below for how this compares to Greater London and the rest of England & Wales.

0.5

Within this area

0.8

Within Greater London

1.2

England & Wales

Source: ONS Census (2021)

Estate Agents active nearby!

15 Portman SquareHouse Prices / London, Westminster, Portman Square, W1H 6LL

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House Pricesin 15 Portman Square

Sales Market Trendsin 15 Portman Square

Rental Market Trendsin 15 Portman Square

Explore Propertiesin 15, Portman Square, London, W1

Sales History
in 15, Portman Square, London, W1

Property Typesin 15 Portman Square

Energy Efficiencyof properties in 15 Portman Square

Top 3 Most Expensive Saleson Portman Square, London, W1

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Schools Nearby

Public Transport Nearby

Available Internet Speeds

Risk of Flooding

Home Ownership Nearby

Education Levels in the Area

Average Age of Residents

Average age

Age distribution

Number of Second Homes

Average Cars per Home

Home Ownership Nearby

Education Levels in the Area

Average Age of Residents

Average age

Age distribution

Number of Second Homes

Average Cars per Home

Available Internet Speeds

Risk of Flooding

Estate Agents active nearby!

15 Portman SquareHouse Prices / London, Westminster, Portman Square, W1H 6LL

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House Pricesin 15 Portman Square

Sales Market Trendsin 15 Portman Square

Rental Market Trendsin 15 Portman Square

Explore Propertiesin 15, Portman Square, London, W1

Sales Historyin 15, Portman Square, London, W1

Property Typesin 15 Portman Square

Energy Efficiencyof properties in 15 Portman Square

Top 3 Most Expensive Saleson Portman Square, London, W1

Schools Nearby

Public Transport Nearby

Available Internet Speeds

Risk of Flooding

Home Ownership Nearby

Education Levels in the Area

Average Age of Residents

Average age

Age distribution

Number of Second Homes

Average Cars per Home

Home Ownership Nearby

Education Levels in the Area

Average Age of Residents

Average age

Age distribution

Number of Second Homes

Average Cars per Home

Available Internet Speeds

Risk of Flooding

Our partners and
data sources

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Sales History
in 15, Portman Square, London, W1