21, Chartley Avenue, Stanmore occupies a 395 m² plot as recorded by HM Land Registry.

All 16 other houses in this postcode have recorded plot sizes, and this one ranks as the 5th largest.

21, Chartley Avenue, Stanmore has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 04 Nov 2021.

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

21, Chartley Avenue, Stanmore last changed hands on 17th September 2025, selling for £555,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has dropped by 3.1% since September 2025.

• Sold Sep 2025£555,000
• Sold Apr 2006£273,000

Land Registry records and our Estate Agent network show 102 sales of comparable properties within 540 metres of 21, Chartley Avenue, Stanmore since 2008.

Most recently, 10, The Chase, Stanmore, HA7 3RY, a freehold house, sold at £672,500 on the 19th March 2026.

Read more about house prices in HA7.

• Sold Mar 2026£672,500 | 3 Bed House10, The Chase, Stanmore, HA7 3RY10, The Chase, Stanmore, HA7 3RY
• Sold Dec 2025£545,000 | 3 Bed House4, Newbolt Road, Stanmore, HA7 3LT4, Newbolt Road, Stanmore, HA7 3LT
• Sold Nov 2025£550,000 | 3 Bed House6, Winston Close, Harrow, HA3 6AL6, Winston Close, Harrow, HA3 6AL
• Sold Oct 2025£690,000 | 3 Bed House28, Chartley Avenue, Stanmore, HA7 3QZ28, Chartley Avenue, Stanmore, HA7 3QZ
• Sold Oct 2025£595,000 | 3 Bed House18, Sitwell Grove, Stanmore, HA7 3NB18, Sitwell Grove, Stanmore, HA7 3NB
• Sold Nov 2024£565,000 | 3 Bed House11, Ashdale Grove, Stanmore, HA7 3SB11, Ashdale Grove, Stanmore, HA7 3SB
• Sold Sep 2024£725,000 | 3 Bed House42, Kenneth Gardens, Stanmore, HA7 3SD42, Kenneth Gardens, Stanmore, HA7 3SD
• Sold Aug 2024£570,000 | 3 Bed House39, Sitwell Grove, Stanmore, HA7 3NB39, Sitwell Grove, Stanmore, HA7 3NB
• Sold Jul 2023£530,000 | 3 Bed House34, Binyon Crescent, Stanmore, HA7 3NF34, Binyon Crescent, Stanmore, HA7 3NF
• Sold May 2023£625,000 | 3 Bed House1, Ashdale Grove, Stanmore, HA7 3SB1, Ashdale Grove, Stanmore, HA7 3SB
• Sold May 2023£582,500 | 3 Bed House9, Ashdale Grove, Stanmore, HA7 3SB9, Ashdale Grove, Stanmore, HA7 3SB
• Sold Aug 2022£650,000 | 3 Bed House10, Daventer Drive, Stanmore, HA7 3TJ10, Daventer Drive, Stanmore, HA7 3TJ
• Sold Jun 2022£470,000 | 3 Bed House10, Sitwell Grove, Stanmore, HA7 3NB10, Sitwell Grove, Stanmore, HA7 3NB
• Sold Sep 2021£570,000 | 3 Bed House26, Binyon Crescent, Stanmore, HA7 3NF26, Binyon Crescent, Stanmore, HA7 3NF
• Sold Sep 2021£610,000 | 3 Bed House44, Kenneth Gardens, Stanmore, HA7 3SD44, Kenneth Gardens, Stanmore, HA7 3SD
• Sold Jun 2021£675,000 | 3 Bed House17, Binyon Crescent, Stanmore, HA7 3ND17, Binyon Crescent, Stanmore, HA7 3ND
• Sold Aug 2020£466,000 | 3 Bed House2, Ashdale Grove, Stanmore, HA7 3SB2, Ashdale Grove, Stanmore, HA7 3SB
• Sold Jun 2015£425,000 | 3 Bed House33, Chartley Avenue, Stanmore, HA7 3RA33, Chartley Avenue, Stanmore, HA7 3RA
• Sold Feb 2011£302,500 | 3 Bed House19, Chartley Avenue, Stanmore, HA7 3RA19, Chartley Avenue, Stanmore, HA7 3RA
• Sold May 2008£299,000 | 3 Bed House25, Chartley Avenue, Stanmore, HA7 3RA25, Chartley Avenue, Stanmore, HA7 3RA

Our analysis of the public data ranks 21, Chartley Avenue, Stanmore as the 24th largest and the 20th most expensive of the 50 addresses on Chartley Avenue, Stanmore, HA7.

Against the HA7 postcode district average, it is £22k less expensive than the typical property.

• Weald Rise Primary School

  700 m away
• Hujjat Primary School

  800 m away
• St John's CofE School

  1.1 km away

• Bentley Wood High School

  600 m away
• The Sacred Heart Language College

  1.6 km away
• Salvatorian Roman Catholic College

  1.7 km away

• Stanmore

  |

  1.8 km away
• Headstone Lane

  |

  2.3 km away
• Harrow & Wealdstone

  |

  2.3 km away

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