According to data from HM Land Registry, 30, Flask Walk sits on a plot of 84 m².

We have plot size data on 10 out of 19 other houses in the postcode and 30, Flask Walk sits on the 7th largest plot.

30, Flask Walk has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 17 Aug 2021.

The property is connected to mains gas and has single glazed windows. It is heated using a boiler and radiators (mains gas).

According to the Land Registry and our network of Estate Agents, there have been 44 sales of properties similar to 30, Flask Walk within a radius of 300 metres since 2011.

The most recent example is 33, Willoughby Road, London, NW3 1RT, a freehold house which sold for £2,750,000 on the 27th March 2026.

Read more about house prices in NW3.

• Sold Mar 2026£2,750,000 | 4 Bed House33, Willoughby Road, London, NW3 1RT33, Willoughby Road, London, NW3 1RT
• Sold Dec 2025£2,185,000 | 4 Bed House17, The Mount, London, NW3 6SZ17, The Mount, London, NW3 6SZ
• Sold Nov 2025£1,500,000 | 4 Bed HouseSide Door, 16, Flask Walk, London, NW3 1HESide Door, 16, Flask Walk, London, NW3 1HE
• Sold May 2023£1,810,000 | 4 Bed House2, Well Road, London, NW3 1LJ2, Well Road, London, NW3 1LJ
• Sold Aug 2022£2,550,000 | 4 Bed House61, New End, London, NW3 1HY61, New End, London, NW3 1HY
• Sold Jul 2022£2,870,000 | 4 Bed House14, Gardnor Road, London, NW3 1HA14, Gardnor Road, London, NW3 1HA
• Sold Jul 2022£2,600,000 | 4 Bed House14, The Mount, London, NW3 6SZ14, The Mount, London, NW3 6SZ
• Sold Jun 2022£1,830,000 | 4 Bed House39, Flask Walk, London, NW3 1HH39, Flask Walk, London, NW3 1HH
• Sold Jan 2022£1,675,000 | 4 Bed House9, Benhams Place, London, NW3 6QX9, Benhams Place, London, NW3 6QX
• Sold Sep 2021£2,500,000 | 4 Bed House35, Flask Walk, London, NW3 1HH35, Flask Walk, London, NW3 1HH
• Sold Apr 2021£2,000,000 | 4 Bed House55A, Gayton Road, London, NW3 1TU55A, Gayton Road, London, NW3 1TU
• Sold Jan 2021£1,750,000 | 4 Bed House5, Old Brewery Mews, London, NW3 1PZ5, Old Brewery Mews, London, NW3 1PZ
• Sold Oct 2020£2,400,000 | 4 Bed House2, The Mount, London, NW3 6SZ2, The Mount, London, NW3 6SZ
• Sold Sep 2020£1,640,000 | 3 Bed House14, Back Lane, London, NW3 1HL14, Back Lane, London, NW3 1HL
• Sold Jul 2020£2,225,000 | 4 Bed House71B, Flask Walk, London, NW3 1ET71B, Flask Walk, London, NW3 1ET
• Sold Mar 2020£2,250,000 | 4 Bed House35, Spencer Walk, London, NW3 1QZ35, Spencer Walk, London, NW3 1QZ
• Sold Jun 2018£2,850,000 | 4 Bed House5, Back Lane, London, NW3 1HL5, Back Lane, London, NW3 1HL
• Sold May 2018£2,435,000 | 4 Bed House34, Flask Walk, London, NW3 1HE34, Flask Walk, London, NW3 1HE
• Sold Aug 2011£1,850,000 | 4 Bed House37, Rudall Crescent, London, NW3 1RR37, Rudall Crescent, London, NW3 1RR
• Sold Jan 2011£1,495,000 | 4 Bed House18, Flask Walk, London, NW3 1HE18, Flask Walk, London, NW3 1HE

Flask Walk, London, NW3 has a total of 81 addresses. According to our analysis of all the public data, 30, Flask Walk is the 26th largest and the 13th most expensive property on the street.

When compared to the postcode district it is £1.007m more expensive than the average property in NW3.

• 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

  1.7 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

  |

  800 m away

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