According to data from HM Land Registry, 45, Flask Walk sits on a plot of 167 m².

We have plot size data on 15 out of 15 other houses in the postcode and 45, Flask Walk sits on the 3rd largest plot.

45, Flask Walk has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 08 Aug 2014.

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

According to HM Land Registry, 45, Flask Walk was last sold on 2nd December 2014 for £2,300,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since December 2014, the market for similar properties has risen by 1.7%.

• Sold Dec 2014£2,300,000

According to the Land Registry and our network of Estate Agents, there have been 43 sales of properties similar to 45, Flask Walk within a radius of 310 metres since 2010.

The most recent example is 17, The Mount, London, NW3 6SZ, a freehold house which sold for £2,185,000 on the 23rd December 2025.

Read more about house prices in NW3.

• Sold Dec 2025£2,185,000 | 4 Bed House17, The Mount, London, NW3 6SZ17, The Mount, London, NW3 6SZ
• Sold May 2025£3,075,000 | 4 Bed House32, Flask Walk, London, NW3 1HE32, Flask Walk, London, NW3 1HE
• Sold Feb 2025£2,400,000 | 4 Bed House7, Gardnor Road, London, NW3 1HA7, Gardnor Road, London, NW3 1HA
• Sold Jun 2024£2,725,000 | 4 Bed House1, Trinity Close, London, NW3 1SD1, Trinity Close, London, NW3 1SD
• Sold May 2023£1,810,000 | 4 Bed House2, Well Road, London, NW3 1LJ2, Well Road, London, NW3 1LJ
• Sold Nov 2022£2,675,000 | 4 Bed House63, New End, London, NW3 1HY63, New End, London, NW3 1HY
• Sold Sep 2022£1,915,333 | 4 Bed House35, Willow Road, London, NW3 1TN35, Willow Road, London, NW3 1TN
• Sold Jul 2022£2,870,000 | 4 Bed House14, Gardnor Road, London, NW3 1HA14, Gardnor Road, London, NW3 1HA
• 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 Jul 2020£2,225,000 | 4 Bed House71B, Flask Walk, London, NW3 1ET71B, Flask Walk, London, NW3 1ET
• 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 Dec 2017£2,650,000 | 4 Bed House1, The Mount, London, NW3 6SZ1, The Mount, London, NW3 6SZ
• Sold Sep 2017£2,350,000 | 4 Bed House32, New End Square, London, NW3 1LS32, New End Square, London, NW3 1LS
• Sold Jun 2017£2,275,000 | 4 Bed House49, Flask Walk, London, NW3 1HH49, Flask Walk, London, NW3 1HH
• Sold Feb 2015£2,400,000 | 4 Bed HouseThe Old Bank House 14, Hampstead High Street, London, NW3 1PXThe Old Bank House 14, Hampstead High Street, London, NW3 1PX
• Sold Feb 2013£1,995,000 | 4 Bed House12, Gardnor Road, London, NW3 1HA12, Gardnor Road, London, NW3 1HA
• Sold Oct 2010£1,910,000 | 4 Bed House19, The Mount, London, NW3 6ST19, The Mount, London, NW3 6ST

Flask Walk, London, NW3 has a total of 81 addresses. According to our analysis of all the public data, 45, Flask Walk is the 8th largest and the 8th most expensive property on the street.

When compared to the postcode district it is £1.078m 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

  1.8 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

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