Flat 2, 21, Frognal has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 26 Apr 2018.

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

Flat 2, 21, Frognal last changed hands on 22nd May 1998, selling for £67,000. The transaction was logged as a leasehold flat by HM Land Registry.

That is its only recorded sale since 1995.

• Sold May 1998£67,000

Land Registry records and our Estate Agent network show 13 sales of comparable properties within 330 metres of Flat 2, 21, Frognal since 2010.

Most recently, Flat 8, 19, Frognal, London, NW3 6AR, a leasehold flat, sold at £341,000 on the 1st August 2025.

Read more about house prices in NW3.

• Sold Aug 2025£341,000 | 1 Bed FlatFlat 8, 19, Frognal, London, NW3 6ARFlat 8, 19, Frognal, London, NW3 6AR
• Sold Jul 2024£325,000 | 1 Bed FlatFlat 9, 28, Frognal, London, NW3 6AGFlat 9, 28, Frognal, London, NW3 6AG
• Sold Apr 2024£260,000 | 1 Bed FlatFlat 9, 21, Frognal, London, NW3 6ARFlat 9, 21, Frognal, London, NW3 6AR
• Sold Aug 2022£388,000 | 1 Bed FlatFlat 7, 28, Frognal, London, NW3 6AGFlat 7, 28, Frognal, London, NW3 6AG
• Sold May 2019£311,000 | 1 Bed FlatFlat 14, 21, Frognal, London, NW3 6ARFlat 14, 21, Frognal, London, NW3 6AR
• Sold Oct 2017£384,000 | 1 Bed FlatFlat 4, 16, Frognal, London, NW3 6AGFlat 4, 16, Frognal, London, NW3 6AG
• Sold Aug 2015£359,950 | 1 Bed FlatFlat 10, 21, Frognal, London, NW3 6ARFlat 10, 21, Frognal, London, NW3 6AR
• Sold May 2015£425,000 | 1 Bed FlatFlat 9, 19, Frognal, London, NW3 6ARFlat 9, 19, Frognal, London, NW3 6AR
• Sold Apr 2015£410,000 | 1 Bed FlatFlat 4, 28, Frognal, London, NW3 6AGFlat 4, 28, Frognal, London, NW3 6AG
• Sold Mar 2014£191,000 | 1 Bed FlatFlat 4, 13, Arkwright Road, London, NW3 6AAFlat 4, 13, Arkwright Road, London, NW3 6AA
• Sold Aug 2012£260,000 | 1 Bed FlatFlat 9, Rosemont Mansions, Lithos Road, London, NW3 6DYFlat 9, Rosemont Mansions, Lithos Road, London, NW3 6DY
• Sold Jun 2011£244,000 | 1 Bed FlatFlat 3, 6, Frognal, London, NW3 6AJFlat 3, 6, Frognal, London, NW3 6AJ
• Sold Sep 2010£260,000 | 1 Bed FlatFlat 1, 6, Frognal, London, NW3 6AJFlat 1, 6, Frognal, London, NW3 6AJ

Our analysis of the public data ranks Flat 2, 21, Frognal as the 352nd largest and the 362nd most expensive of the 386 addresses on Frognal, London, NW3.

Against the NW3 postcode district average, it is £995k less expensive than the typical property.

• Fitzjohn's Primary School

  400 m away
• Holy Trinity CofE Primary School, NW3

  600 m away
• Hampstead Parochial Church of England Primary School

  600 m away

• The UCL Academy

  1.2 km away
• Harris Academy St John's Wood

  1.5 km away
• Hampstead School

  1.9 km away

• Finchley Road & Frognal

  |

  200 m away
• Finchley Road

  |

  500 m away
• Hampstead

  |

  600 m away

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