Our Data Sources
Flat 91, 15, Portman Square has no recent1 records in the the Land Registry and a single entry in the EPC database dated October 2010.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If Flat 91, 15, Portman Square is in very good condition we estimate a sale value of £1,875,955 and a rental value of £7,709 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £1,661,560 and a rental value of £6,828 per month.
Energy Efficiency
Flat 91, 15, Portman Square has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 19 Oct 2010.
The property is not connected to mains gas and has single glazed windows. It is heated using Community scheme, mains gas.
Sold Prices
According to HM Land Registry, Flat 91, 15, Portman Square was last sold on 4th January 1999 for £378,000 and was recorded as a leasehold flat.
The property has had 2 sales since 1995.
- Sold Jan 1999£378,000
- Sold Jun 1998£262,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 57 sales of properties similar to Flat 91, 15, Portman Square within a radius of 320 metres over the last 2 years.
The most recent example is Flat 41, 15, Portman Square, London, W1H 6LJ, a leasehold flat which sold for £975,000 on the 23rd November 2023.
Read more about house prices in W1.
- Sold Nov 2023£975,000 | 3 Bed FlatFlat 41, 15, Portman Square, London, W1H 6LJFlat 41, 15, Portman Square, London, W1H 6LJ
- Sold Nov 2020£750,000 | 3 Bed FlatFlat 97, 15, Portman Square, London, W1H 6LLFlat 97, 15, Portman Square, London, W1H 6LL
- Sold Jul 2019£2,050,000 | 3 Bed FlatFlat 82, 15, Portman Square, London, W1H 6LLFlat 82, 15, Portman Square, London, W1H 6LL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Portman Square, London, W1 has a total of 269 addresses. According to our analysis of all the public data, Flat 91, 15, Portman Square is the 100th largest and the 130th most expensive property on the street.
When compared to the postcode district it is £352k less expensive than the average property in W1.
More reading links
Schools Nearby
- St Vincent's Catholic Primary School300 m away
- Hampden Gurney CofE Primary School600 m away
- St Mary's Bryanston Square CofE School700 m away
- The St Marylebone CofE School700 m away
- Marylebone Boys' School1.5 km away
- Maria Fidelis Catholic School FCJ2.2 km away
More reading links
Public Transport Nearby
- Marble Arch|400 m away
- Bond Street|500 m away
- Bond Street (Elizabeth line)|500 m away
Available Internet Speeds
According to recent data from Ofcom, there is poor internet coverage in this area which may result in poor or no internet connectivity.
According to recent data from Ofcom, Slow/none Broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












