3, Warden Avenue, Harrow occupies a 222 m² plot as recorded by HM Land Registry.

Of the 12 other houses in this postcode, 11 have recorded plot sizes, and this one ranks as the 8th largest.

3, Warden Avenue, Harrow has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 16 Jan 2026.

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

3, Warden Avenue, Harrow last changed hands on 7th August 2018, selling for £480,000. 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 8.0% since August 2018.

• Sold Aug 2018£480,000

Land Registry records and our Estate Agent network show 196 sales of comparable properties within 480 metres of 3, Warden Avenue, Harrow since 2019.

Most recently, 239, Kings Road, Harrow, HA2 9LF, a freehold house, sold at £575,000 on the 5th November 2025.

Read more about house prices in HA2.

• Sold Nov 2025£575,000 | 3 Bed House239, Kings Road, Harrow, HA2 9LF239, Kings Road, Harrow, HA2 9LF
• Sold Sep 2025£560,000 | 3 Bed House38, Fairview Crescent, Harrow, HA2 9UD38, Fairview Crescent, Harrow, HA2 9UD
• Sold Jun 2025£530,000 | 3 Bed House4, Oxleay Road, Harrow, HA2 9UY4, Oxleay Road, Harrow, HA2 9UY
• Sold Apr 2025£575,000 | 3 Bed House54, Waverley Road, Harrow, HA2 9RD54, Waverley Road, Harrow, HA2 9RD
• Sold Mar 2025£568,000 | 3 Bed House57, Fairview Crescent, Harrow, HA2 9UB57, Fairview Crescent, Harrow, HA2 9UB
• Sold Mar 2025£560,000 | 3 Bed House16, Drake Road, Harrow, HA2 9EA16, Drake Road, Harrow, HA2 9EA
• Sold Jan 2025£525,000 | 3 Bed House38, Clitheroe Avenue, Harrow, HA2 9UX38, Clitheroe Avenue, Harrow, HA2 9UX
• Sold Nov 2024£580,000 | 3 Bed House251, Rayners Lane, Harrow, HA2 9TU251, Rayners Lane, Harrow, HA2 9TU
• Sold Feb 2024£550,000 | 3 Bed House30, Drake Road, Harrow, HA2 9EA30, Drake Road, Harrow, HA2 9EA
• Sold Dec 2023£550,000 | 3 Bed House77, Oxleay Road, Harrow, HA2 9UZ77, Oxleay Road, Harrow, HA2 9UZ
• Sold Nov 2023£520,000 | 3 Bed House245, Kings Road, Harrow, HA2 9LF245, Kings Road, Harrow, HA2 9LF
• Sold Aug 2023£600,000 | 3 Bed House77, Worple Way, Harrow, HA2 9SW77, Worple Way, Harrow, HA2 9SW
• Sold Mar 2023£675,000 | 3 Bed House66, Worple Way, Harrow, HA2 9SR66, Worple Way, Harrow, HA2 9SR
• Sold Aug 2022£590,000 | 3 Bed House267, Rayners Lane, Harrow, HA2 9TU267, Rayners Lane, Harrow, HA2 9TU
• Sold Jun 2022£560,000 | 4 Bed House19, Oxleay Road, Harrow, HA2 9UZ19, Oxleay Road, Harrow, HA2 9UZ
• Sold Feb 2022£501,000 | 3 Bed House52, Clitheroe Avenue, Harrow, HA2 9UX52, Clitheroe Avenue, Harrow, HA2 9UX
• Sold Jan 2022£540,000 | 4 Bed House25, Oxleay Road, Harrow, HA2 9UZ25, Oxleay Road, Harrow, HA2 9UZ
• Sold Aug 2021£250,000 | 3 Bed House52, Oxleay Road, Harrow, HA2 9UY52, Oxleay Road, Harrow, HA2 9UY
• Sold Oct 2020£560,000 | 3 Bed House269, Rayners Lane, Harrow, HA2 9TU269, Rayners Lane, Harrow, HA2 9TU
• Sold Oct 2019£190,000 | 3 Bed House46, Warden Avenue, Harrow, HA2 9LW46, Warden Avenue, Harrow, HA2 9LW

Our analysis of the public data ranks 3, Warden Avenue, Harrow as the 20th largest and the 70th most expensive of the 132 addresses on Warden Avenue, Harrow, HA2.

Against the HA2 postcode district average, it is £56k more expensive than the typical property.

• Newton Farm Nursery, Infant and Junior School

  400 m away
• Roxbourne Primary School

  800 m away
• Longfield Primary School

  900 m away

• Rooks Heath School

  1.1 km away
• Pinner High School

  1.3 km away
• Whitmore High School

  1.4 km away

• Rayners Lane

  |

  300 m away
• North Harrow

  |

  1.6 km away
• West Harrow

  |

  1.6 km away

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