4, Thornley Drive, Harrow occupies a 209 m² plot as recorded by HM Land Registry.

All 12 other houses in this postcode have recorded plot sizes, and this one ranks as the 11th largest.

4, Thornley Drive, Harrow has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 15 Apr 2026.

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

4, Thornley Drive, Harrow last changed hands on 10th September 1999, selling for £124,950. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

• Sold Sep 1999£124,950
• Sold May 1996£66,000

Land Registry records and our Estate Agent network show 139 sales of comparable properties within 390 metres of 4, Thornley Drive, Harrow since 2017.

Most recently, 45, Sandringham Crescent, Harrow, HA2 9BP, a freehold house, sold at £500,000 on the 31st March 2026.

Read more about house prices in HA2.

• Sold Mar 2026£500,000 | 3 Bed House45, Sandringham Crescent, Harrow, HA2 9BP45, Sandringham Crescent, Harrow, HA2 9BP
• Sold Mar 2026£500,000 | 3 Bed House2, Eastleigh Avenue, Harrow, HA2 0UF2, Eastleigh Avenue, Harrow, HA2 0UF
• Sold Feb 2026£470,000 | 3 Bed House2A, Maple Avenue, Harrow, HA2 8DQ2A, Maple Avenue, Harrow, HA2 8DQ
• Sold Nov 2025£490,000 | 3 Bed House40, Eastcote Avenue, Harrow, HA2 8AL40, Eastcote Avenue, Harrow, HA2 8AL
• Sold Aug 2025£550,000 | 3 Bed House65, Southdown Crescent, Harrow, HA2 0QT65, Southdown Crescent, Harrow, HA2 0QT
• Sold Jul 2025£490,000 | 3 Bed House36, Eastcote Avenue, Harrow, HA2 8AL36, Eastcote Avenue, Harrow, HA2 8AL
• Sold Mar 2025£491,500 | 3 Bed House72, Roxeth Green Avenue, Harrow, HA2 8AG72, Roxeth Green Avenue, Harrow, HA2 8AG
• Sold Jan 2025£400,000 | 3 Bed House112, Eastcote Lane, Harrow, HA2 8DH112, Eastcote Lane, Harrow, HA2 8DH
• Sold Jul 2024£440,000 | 3 Bed House43, Maple Avenue, Harrow, HA2 8DG43, Maple Avenue, Harrow, HA2 8DG
• Sold May 2024£540,000 | 3 Bed House161, Welbeck Road, Harrow, HA2 0RY161, Welbeck Road, Harrow, HA2 0RY
• Sold Sep 2023£520,000 | 3 Bed House159, Welbeck Road, Harrow, HA2 0RY159, Welbeck Road, Harrow, HA2 0RY
• Sold Aug 2023£488,000 | 3 Bed House80, Roxeth Green Avenue, Harrow, HA2 8AG80, Roxeth Green Avenue, Harrow, HA2 8AG
• Sold Feb 2022£450,000 | 3 Bed House70, Eastcote Avenue, Harrow, HA2 8AL70, Eastcote Avenue, Harrow, HA2 8AL
• Sold Feb 2022£480,000 | 3 Bed House20, Maple Avenue, Harrow, HA2 8DQ20, Maple Avenue, Harrow, HA2 8DQ
• Sold Sep 2021£515,000 | 3 Bed House44, Eastleigh Avenue, Harrow, HA2 0UG44, Eastleigh Avenue, Harrow, HA2 0UG
• Sold Sep 2021£385,000 | 3 Bed House26, Coles Crescent, Harrow, HA2 0TP26, Coles Crescent, Harrow, HA2 0TP
• Sold Jan 2020£455,000 | 3 Bed House48, Eastleigh Avenue, Harrow, HA2 0UG48, Eastleigh Avenue, Harrow, HA2 0UG
• Sold Aug 2019£440,000 | 3 Bed House47, Eastleigh Avenue, Harrow, HA2 0UG47, Eastleigh Avenue, Harrow, HA2 0UG
• Sold Jan 2019£428,000 | 3 Bed House11, Thornley Drive, Harrow, HA2 8AD11, Thornley Drive, Harrow, HA2 8AD
• Sold Nov 2017£320,000 | 3 Bed House33, Eastleigh Avenue, Harrow, HA2 0UF33, Eastleigh Avenue, Harrow, HA2 0UF

Our analysis of the public data ranks 4, Thornley Drive, Harrow as the 12th largest and the 11th most expensive of the 12 addresses on Thornley Drive, Harrow, HA2.

Against the HA2 postcode district average, it is £40k less expensive than the typical property.

• Grange Primary School

  500 m away
• The Welldon Park Academy

  700 m away
• Heathland School

  900 m away

• Whitmore High School

  700 m away
• Rooks Heath School

  1.1 km away
• Islip Manor High School

  2.1 km away

• South Harrow

  |

  600 m away
• Rayners Lane

  |

  1.1 km away
• Northolt Park

  |

  1.1 km away

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