Our Data Sources
42, Flask Walk has no recent1 records in the Land Registry and a single entry in the EPC database dated February 2026.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 42, Flask Walk, we estimate a market value of £712,321 and a rental value of £2,214 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £630,913 and £1,961 per month respectively.
Energy Efficiency
42, Flask Walk has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 24 Feb 2026.
The property is connected to mains gas and has single glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 42, Flask Walk completed on 27th November 1998 at £151,550 and was recorded by HM Land Registry as a leasehold flat.
Since 1995 this is the property's only sale.
- Sold Nov 1998£151,550
Similar Properties Sold Nearby
Since 2017 37 properties similar to 42, Flask Walk have sold within a radius of 300 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 6th February 2026, was Flat 2, 28, Carlingford Road, London, NW3 1RX, a leasehold flat which sold for £560,000.
Read more about house prices in NW3.
- Sold Feb 2026£560,000 | 1 Bed FlatFlat 2, 28, Carlingford Road, London, NW3 1RXFlat 2, 28, Carlingford Road, London, NW3 1RX
- Sold Jan 2026£640,000 | 2 Bed FlatFlat 72, Greenhill, Prince Arthur Road, London, NW3 5TZFlat 72, Greenhill, Prince Arthur Road, London, NW3 5TZ
- Sold Oct 2025£680,000 | 1 Bed FlatFlat 2, 31, Willow Road, London, NW3 1TLFlat 2, 31, Willow Road, London, NW3 1TL
- Sold Jul 2025£740,000 | 1 Bed FlatFlat 3, 31, Willow Road, London, NW3 1TLFlat 3, 31, Willow Road, London, NW3 1TL
- Sold Oct 2024£600,000 | 2 Bed FlatFlat 120, Greenhill, Prince Arthur Road, London, NW3 5TYFlat 120, Greenhill, Prince Arthur Road, London, NW3 5TY
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £1,732,345, ranging from £638,884 to £2,629,501.
- 44 Flask Walk
1 Bed Flat | 0 m | Est. Value: £691,529
- 40 Flask Walk
1 Bed Flat | 0 m | Est. Value: £638,884
- 36 Flask Walk
3 Bed House | 9 m | Est. Value: £1,473,325
- 34 Flask Walk
4 Bed House | 13 m | Est. Value: £2,520,663
- 21 Spencer Walk
3 Bed Flat | 16 m | Est. Value: £1,558,602
Location Comparison
Of the 81 addresses on Flask Walk, London, NW3, 42, Flask Walk comes out as the 78th largest and the 71st most expensive in our analysis of the public data.
It is also £656k less expensive than the average property across the NW3 district.
More reading links
Schools Nearby
- New End Primary School100 m away
- Hampstead Parochial Church of England Primary School200 m away
- Christ Church Primary School, Hampstead300 m away
- The UCL Academy1.7 km away
- William Ellis School1.8 km away
- Parliament Hill School1.9 km away
More reading links
Public Transport Nearby
- Hampstead|100 m away
- Hampstead Heath|800 m away
- Finchley Road & Frognal|800 m away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
