49, Flask Walk occupies a 270 m² plot as recorded by HM Land Registry.

All 15 other houses in this postcode have recorded plot sizes, and this one ranks as the largest.

49, Flask Walk has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 11 Nov 2016.

The property is connected to mains gas and has partial double glazing. It is heated using a boiler and radiators (mains gas).

49, Flask Walk last changed hands on 26th June 2017, selling for £2,275,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has risen by 0.7% since June 2017.

• Sold Jun 2017£2,275,000

Land Registry records and our Estate Agent network show 40 sales of comparable properties within 310 metres of 49, Flask Walk since 2007.

Most recently, 17, The Mount, London, NW3 6SZ, a freehold house, sold at £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 Jan 2022£1,675,000 | 4 Bed House9, Benhams Place, London, NW3 6QX9, Benhams Place, London, NW3 6QX
• 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 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 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 Dec 2014£2,300,000 | 4 Bed House45, Flask Walk, London, NW3 1HH45, Flask Walk, London, NW3 1HH
• 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
• Sold Aug 2007£1,360,000 | 4 Bed House1, Lutton Terrace, London, NW3 1HB1, Lutton Terrace, London, NW3 1HB

Our analysis of the public data ranks 49, Flask Walk as the 7th largest and the 7th most expensive of the 81 addresses on Flask Walk, London, NW3.

Against the NW3 postcode district average, it is £1.088m more expensive than the typical property.

• 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

Environment Agency data suggests this area has a Very Low risk of flooding.