HM Land Registry records the plot of land for 15, Borrowdale Avenue, Harrow as measuring 558 m².

That makes it the 6th largest plot in the postcode, where all 16 other houses have recorded plot data.

The most recent sale of 15, Borrowdale Avenue, Harrow completed on 4th October 2007 at £372,500 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 83.2% over the period since October 2007.

• Sold Oct 2007£372,500

Since 2017 98 properties similar to 15, Borrowdale Avenue, Harrow have sold within a radius of 460 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 31st October 2025, was 39, Talbot Road, Harrow, HA3 7QQ, a freehold house which sold for £620,000.

Read more about house prices in HA3.

• Sold Oct 2025£620,000 | 4 Bed House39, Talbot Road, Harrow, HA3 7QQ39, Talbot Road, Harrow, HA3 7QQ
• Sold Mar 2025£625,000 | 4 Bed House101, Elgin Avenue, Harrow, HA3 8QN101, Elgin Avenue, Harrow, HA3 8QN
• Sold Feb 2025£553,000 | 4 Bed House4, Borrowdale Avenue, Harrow, HA3 7PZ4, Borrowdale Avenue, Harrow, HA3 7PZ
• Sold Dec 2024£550,000 | 4 Bed House28, Borrowdale Avenue, Harrow, HA3 7PZ28, Borrowdale Avenue, Harrow, HA3 7PZ
• Sold Oct 2024£660,000 | 4 Bed House221, Kenmore Avenue, Harrow, HA3 8PD221, Kenmore Avenue, Harrow, HA3 8PD
• Sold May 2024£487,500 | 4 Bed House85, Radcliffe Road, Harrow, HA3 7QA85, Radcliffe Road, Harrow, HA3 7QA
• Sold Feb 2024£575,000 | 3 Bed House24, Mountbel Road, Stanmore, HA7 2AF24, Mountbel Road, Stanmore, HA7 2AF
• Sold Dec 2023£625,000 | 4 Bed House8, Borrowdale Avenue, Harrow, HA3 7PZ8, Borrowdale Avenue, Harrow, HA3 7PZ
• Sold Sep 2023£573,000 | 4 Bed House41, Grasmere Gardens, Harrow, HA3 7PS41, Grasmere Gardens, Harrow, HA3 7PS
• Sold Jul 2023£663,000 | 4 Bed House31, Radcliffe Road, Harrow, HA3 7QA31, Radcliffe Road, Harrow, HA3 7QA
• Sold Sep 2022£646,000 | 4 Bed House23, Mountbel Road, Stanmore, HA7 2AG23, Mountbel Road, Stanmore, HA7 2AG
• Sold Dec 2021£590,000 | 4 Bed House275, Kenmore Avenue, Harrow, HA3 8PD275, Kenmore Avenue, Harrow, HA3 8PD
• Sold Dec 2021£545,000 | 4 Bed House50, Borrowdale Avenue, Harrow, HA3 7PZ50, Borrowdale Avenue, Harrow, HA3 7PZ
• Sold Jun 2021£560,000 | 4 Bed House211, Kenmore Avenue, Harrow, HA3 8PB211, Kenmore Avenue, Harrow, HA3 8PB
• Sold Jan 2021£528,000 | 4 Bed House6, Mountbel Road, Stanmore, HA7 2AF6, Mountbel Road, Stanmore, HA7 2AF
• Sold Nov 2020£540,000 | 4 Bed House36, Mountbel Road, Stanmore, HA7 2AF36, Mountbel Road, Stanmore, HA7 2AF
• Sold Jan 2020£565,000 | 4 Bed House23, Radcliffe Road, Harrow, HA3 7QA23, Radcliffe Road, Harrow, HA3 7QA
• Sold Aug 2019£577,500 | 4 Bed House7, Radcliffe Road, Harrow, HA3 7QA7, Radcliffe Road, Harrow, HA3 7QA
• Sold Jun 2018£496,000 | 4 Bed House20, Borrowdale Avenue, Harrow, HA3 7PZ20, Borrowdale Avenue, Harrow, HA3 7PZ
• Sold Feb 2017£574,000 | 4 Bed House2, Borrowdale Avenue, Harrow, HA3 7PZ2, Borrowdale Avenue, Harrow, HA3 7PZ

Of the 67 addresses on Borrowdale Avenue, Harrow, HA3, 15, Borrowdale Avenue, Harrow comes out as the 21st largest and the 21st most expensive in our analysis of the public data.

It is also £176k more expensive than the average property across the HA3 district.

• St Joseph's Catholic Primary School

  200 m away
• Belmont School

  300 m away
• Priestmead Primary School and Nursery

  700 m away

• The Sacred Heart Language College

  900 m away
• Salvatorian Roman Catholic College

  1.1 km away
• Park High School

  1.5 km away

• Harrow & Wealdstone

  |

  1.0 km away
• Kenton

  |

  1.9 km away

The flood risk here is rated Very Low, based on Environment Agency data.