HM Land Registry records the plot of land for 41, Flask Walk as measuring 129 m².

That makes it the 8th largest plot in the postcode, where all 15 other houses have recorded plot data.

41, Flask Walk has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 04 Feb 2013.

The property is connected to mains gas and has single glazed windows. It is heated using warm air (mains gas).

Since 2008 30 properties similar to 41, Flask Walk have sold within a radius of 300 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 17th December 2025, was Goulding House 85, Heath Street, London, NW3 6UG, a freehold house which sold for £1,300,000.

Read more about house prices in NW3.

• Sold Dec 2025£1,300,000 | 3 Bed HouseGoulding House 85, Heath Street, London, NW3 6UGGoulding House 85, Heath Street, London, NW3 6UG
• Sold May 2025£2,000,000 | 3 Bed House11, Hollyberry Lane, London, NW3 6QT11, Hollyberry Lane, London, NW3 6QT
• Sold Apr 2025£5,936,235 | 3 Bed House2-6, Hampstead High Street, London, NW3 1PR2-6, Hampstead High Street, London, NW3 1PR
• Sold Sep 2022£3,160,000 | 5 Bed House12-14, Holly Hill, London, NW3 6SE12-14, Holly Hill, London, NW3 6SE
• Sold Mar 2022£2,500,000 | 3 Bed House12, Old Brewery Mews, London, NW3 1PZ12, Old Brewery Mews, London, NW3 1PZ
• Sold Sep 2021£1,425,000 | 3 Bed House1, New End Square, London, NW3 1LP1, New End Square, London, NW3 1LP
• Sold Jun 2021£1,200,000 | 3 Bed House22, Holly Hill, London, NW3 6SE22, Holly Hill, London, NW3 6SE
• Sold Nov 2020£1,140,000 | 3 Bed House1, Perrins Lane, London, NW3 1QY1, Perrins Lane, London, NW3 1QY
• Sold Nov 2018£1,390,000 | 3 Bed House59, Flask Walk, London, NW3 1EY59, Flask Walk, London, NW3 1EY
• Sold Sep 2018£1,775,000 | 3 Bed House26, Perrins Lane, London, NW3 1QY26, Perrins Lane, London, NW3 1QY
• Sold Aug 2018£1,360,000 | 3 Bed House3, Prospect Place, London, NW3 6QY3, Prospect Place, London, NW3 6QY
• Sold May 2018£850,000 | 3 Bed House7, New End, London, NW3 1JD7, New End, London, NW3 1JD
• Sold Feb 2017£1,386,517 | 3 Bed House4, Lakis Close, London, NW3 1JX4, Lakis Close, London, NW3 1JX
• Sold Aug 2015£1,825,000 | 3 Bed House18, Spencer Walk, London, NW3 1QZ18, Spencer Walk, London, NW3 1QZ
• Sold Aug 2014£1,616,400 | 3 Bed House57, Flask Walk, London, NW3 1EY57, Flask Walk, London, NW3 1EY
• Sold Dec 2012£972,000 | 3 Bed House13C, Gardnor Road, London, NW3 1HA13C, Gardnor Road, London, NW3 1HA
• Sold Sep 2012£1,600,000 | 3 Bed House37, Flask Walk, London, NW3 1HH37, Flask Walk, London, NW3 1HH
• Sold Dec 2009£900,000 | 3 Bed House9, New End, London, NW3 1JD9, New End, London, NW3 1JD
• Sold Jun 2009£1,237,500 | 3 Bed House51, Flask Walk, London, NW3 1HH51, Flask Walk, London, NW3 1HH
• Sold Dec 2008£835,000 | 3 Bed House13, Back Lane, London, NW3 1HL13, Back Lane, London, NW3 1HL

Of the 81 addresses on Flask Walk, London, NW3, 41, Flask Walk comes out as the 48th largest and the 44th most expensive in our analysis of the public data.

It is also £347k more expensive than the average property across the NW3 district.

• New End Primary School

  100 m away
• Hampstead Parochial Church of England Primary School

  200 m away
• Christ Church Primary School, Hampstead

  300 m away

• The UCL Academy

  1.8 km away
• William Ellis School

  1.8 km away
• Parliament Hill School

  1.9 km away

• Hampstead

  |

  100 m away
• Hampstead Heath

  |

  800 m away
• Finchley Road & Frognal

  |

  900 m away

The flood risk here is rated Very Low, based on Environment Agency data.