Our Data Sources
Flat 6, 20A, Great Windmill Street has a single entry in the Land Registry from November 2009 and a single entry in the EPC database dated May 2025.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
In very good condition, we estimate Flat 6, 20A, Great Windmill Street would be worth £809,501, with a potential rental value of £3,368 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £716,987, with a rental value of £2,983 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat 6, 20A, Great Windmill Street has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 27 May 2025.
The property is not connected to mains gas and has full secondary glazing. It is heated using Room heaters, electric.
Sold Prices
Flat 6, 20A, Great Windmill Street last changed hands on 13th November 2009, selling for £605,000. The transaction was logged as a leasehold flat by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 33.4% since November 2009.
- Sold Nov 2009£605,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 22 sales of comparable properties within 300 metres of Flat 6, 20A, Great Windmill Street across the last 2 years.
Most recently, Flat 23, Soho Lofts 10, Richmond Mews, London, W1D 3DD, a leasehold flat, sold at £765,000 on the 16th February 2026.
Read more about house prices in W1.
- Sold Feb 2026£765,000 | 2 Bed FlatFlat 23, Soho Lofts 10, Richmond Mews, London, W1D 3DDFlat 23, Soho Lofts 10, Richmond Mews, London, W1D 3DD
- Sold Feb 2025£47,500 | 1 Bed Flat45A, Old Compton Street, London, W1D 6HH45A, Old Compton Street, London, W1D 6HH
- Sold Jan 2025£650,000 | 2 Bed FlatApartment 9, 5, Peter Street, London, W1F 0DNApartment 9, 5, Peter Street, London, W1F 0DN
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks Flat 6, 20A, Great Windmill Street as the 11th largest and the 17th most expensive of the 26 addresses on Great Windmill Street, London, W1.
Against the W1 postcode district average, it is £1.367m less expensive than the typical property.
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Schools Nearby
- Soho Parish CofE Primary School0 m away
- All Souls CofE Primary School1.0 km away
- St Josephs Catholic Primary School1.0 km away
- Westminster City School1.5 km away
- The St Marylebone CofE School1.7 km away
- The Grey Coat Hospital1.7 km away
More reading links
Public Transport Nearby
- Piccadilly Circus|200 m away
- Leicester Square|400 m away
- Tottenham Court Road (Elizabeth line)|600 m away
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
