According to data from HM Land Registry, 42, Cowbridge Road, Harrow sits on a plot of 373 m².

We have plot size data on 44 out of 45 other houses in the postcode and 42, Cowbridge Road, Harrow sits on the 2nd largest plot.

42, Cowbridge Road, Harrow has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 06 May 2026.

The property is connected to mains gas and has fully double glazed windows. It is heated using room heaters (electric).

According to the Land Registry and our network of Estate Agents, there have been 134 sales of properties similar to 42, Cowbridge Road, Harrow within a radius of 470 metres since 2015.

The most recent example is 29, Sandhurst Road, London, NW9 9LP, a freehold house which sold for £492,000 on the 15th May 2026.

Read more about house prices in HA3.

• Sold May 2026£492,000 | 3 Bed House29, Sandhurst Road, London, NW9 9LP29, Sandhurst Road, London, NW9 9LP
• Sold Jan 2026£600,000 | 3 Bed House175, St. Pauls Avenue, Harrow, HA3 9PT175, St. Pauls Avenue, Harrow, HA3 9PT
• Sold Oct 2025£490,000 | 3 Bed House4, Cowbridge Road, Harrow, HA3 9QA4, Cowbridge Road, Harrow, HA3 9QA
• Sold Jul 2025£570,000 | 3 Bed House98, Honeypot Lane, London, NW9 9QX98, Honeypot Lane, London, NW9 9QX
• Sold Jul 2025£505,000 | 3 Bed House76, Brampton Road, London, NW9 9DD76, Brampton Road, London, NW9 9DD
• Sold Jul 2025£590,000 | 3 Bed House177, Princes Avenue, London, NW9 9QS177, Princes Avenue, London, NW9 9QS
• Sold Mar 2025£527,000 | 3 Bed House71, Sandhurst Road, London, NW9 9LP71, Sandhurst Road, London, NW9 9LP
• Sold Nov 2024£660,000 | 3 Bed House193, Princes Avenue, London, NW9 9QS193, Princes Avenue, London, NW9 9QS
• Sold Oct 2024£535,000 | 3 Bed House56, Ruskin Gardens, Harrow, HA3 9QE56, Ruskin Gardens, Harrow, HA3 9QE
• Sold Oct 2024£575,000 | 3 Bed House96, St. Pauls Avenue, Harrow, HA3 9PU96, St. Pauls Avenue, Harrow, HA3 9PU
• Sold Jul 2023£273,000 | 4 Bed House107, St. Pauls Avenue, Harrow, HA3 9PT107, St. Pauls Avenue, Harrow, HA3 9PT
• Sold Mar 2022£500,000 | 3 Bed House187, Princes Avenue, London, NW9 9QS187, Princes Avenue, London, NW9 9QS
• Sold Jun 2021£500,000 | 3 Bed House48, Berkeley Road, London, NW9 9DG48, Berkeley Road, London, NW9 9DG
• Sold Mar 2021£495,000 | 4 Bed House29, Repton Road, Harrow, HA3 9QD29, Repton Road, Harrow, HA3 9QD
• Sold Sep 2020£348,000 | 3 Bed House5, Cowbridge Road, Harrow, HA3 9QA5, Cowbridge Road, Harrow, HA3 9QA
• Sold Aug 2020£550,000 | 3 Bed House141, Princes Avenue, London, NW9 9QS141, Princes Avenue, London, NW9 9QS
• Sold Oct 2019£545,000 | 3 Bed House185, St. Pauls Avenue, Harrow, HA3 9PT185, St. Pauls Avenue, Harrow, HA3 9PT
• Sold Apr 2019£510,000 | 3 Bed House13, Cowbridge Road, Harrow, HA3 9QA13, Cowbridge Road, Harrow, HA3 9QA
• Sold Oct 2018£456,785 | 3 Bed House175, Princes Avenue, London, NW9 9QS175, Princes Avenue, London, NW9 9QS
• Sold Sep 2015£461,500 | 3 Bed House19, Cowbridge Road, Harrow, HA3 9QA19, Cowbridge Road, Harrow, HA3 9QA

Cowbridge Road, Harrow, HA3 has a total of 49 addresses. According to our analysis of all the public data, 42, Cowbridge Road, Harrow is the 11th largest and the 10th most expensive property on the street.

When compared to the postcode district it is £2k less expensive than the average property in HA3.

• St Bernadette's Catholic Primary School

  400 m away
• Glebe Primary School

  800 m away
• Roe Green Junior School

  900 m away

• Kingsbury High School

  700 m away
• Claremont High School

  800 m away
• JFS

  900 m away

• Queensbury

  |

  600 m away
• Kingsbury

  |

  600 m away
• Preston Road

  |

  2.1 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.