According to data from HM Land Registry, 13, Northwick Avenue, Harrow sits on a plot of 325 m².

We have plot size data on 25 out of 27 other houses in the postcode and 13, Northwick Avenue, Harrow sits on the 23rd largest plot.

13, Northwick Avenue, Harrow has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 07 Sep 2018.

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

According to HM Land Registry, 13, Northwick Avenue, Harrow was last sold on 25th February 2021 for £695,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since February 2021, the market for similar properties has dropped by 0.0%.

• Sold Feb 2021£695,000

According to the Land Registry and our network of Estate Agents, there have been 44 sales of properties similar to 13, Northwick Avenue, Harrow within a radius of 580 metres since 2011.

The most recent example is 19, Northwick Avenue, Harrow, HA3 0AA, a freehold house which sold for £800,000 on the 30th January 2026.

Read more about house prices in HA3.

• Sold Jan 2026£800,000 | 4 Bed House19, Northwick Avenue, Harrow, HA3 0AA19, Northwick Avenue, Harrow, HA3 0AA
• Sold Jan 2025£655,000 | 4 Bed House39, Rushout Avenue, Harrow, HA3 0AS39, Rushout Avenue, Harrow, HA3 0AS
• Sold Sep 2024£840,000 | 5 Bed House36, Northwick Avenue, Harrow, HA3 0AB36, Northwick Avenue, Harrow, HA3 0AB
• Sold Jul 2024£1,000,000 | 5 Bed House20, Manor Road, Harrow, HA1 2PB20, Manor Road, Harrow, HA1 2PB
• Sold Mar 2024£725,000 | 4 Bed House32, Gerard Road, Harrow, HA1 2NE32, Gerard Road, Harrow, HA1 2NE
• Sold Feb 2024£815,000 | 5 Bed House6 Croft Villas, Bonnersfield Lane, Harrow, HA1 2LF6 Croft Villas, Bonnersfield Lane, Harrow, HA1 2LF
• Sold Nov 2023£625,000 | 4 Bed House3, Bonnersfield Close, Harrow, HA1 2LQ3, Bonnersfield Close, Harrow, HA1 2LQ
• Sold Nov 2022£665,000 | 4 Bed House30, Carlton Avenue, Harrow, HA3 8AY30, Carlton Avenue, Harrow, HA3 8AY
• Sold Sep 2022£875,000 | 4 Bed House7, Hawthorne Avenue, Harrow, HA3 8AG7, Hawthorne Avenue, Harrow, HA3 8AG
• Sold Jun 2022£700,000 | 5 Bed House32, Carlton Avenue, Harrow, HA3 8AY32, Carlton Avenue, Harrow, HA3 8AY
• Sold Aug 2021£853,500 | 4 Bed House23, Hawthorne Avenue, Harrow, HA3 8AG23, Hawthorne Avenue, Harrow, HA3 8AG
• Sold Jan 2021£752,000 | 5 Bed House5, Rushout Avenue, Harrow, HA3 0AS5, Rushout Avenue, Harrow, HA3 0AS
• Sold Nov 2017£780,000 | 5 Bed House20, Mayfield Avenue, Harrow, HA3 8EU20, Mayfield Avenue, Harrow, HA3 8EU
• Sold Sep 2017£620,000 | 4 Bed House33, Hawthorne Avenue, Harrow, HA3 8AG33, Hawthorne Avenue, Harrow, HA3 8AG
• Sold May 2017£790,000 | 4 Bed House20A, Northwick Avenue, Harrow, HA3 0AB20A, Northwick Avenue, Harrow, HA3 0AB
• Sold Jun 2016£658,000 | 4 Bed House46, Woodway Crescent, Harrow, HA1 2NQ46, Woodway Crescent, Harrow, HA1 2NQ
• Sold Mar 2016£820,000 | 4 Bed House21, Hawthorne Avenue, Harrow, HA3 8AG21, Hawthorne Avenue, Harrow, HA3 8AG
• Sold Aug 2015£625,000 | 4 Bed House23, Rushout Avenue, Harrow, HA3 0AS23, Rushout Avenue, Harrow, HA3 0AS
• Sold Sep 2013£456,000 | 5 Bed House8, Northwick Avenue, Harrow, HA3 0AB8, Northwick Avenue, Harrow, HA3 0AB
• Sold Mar 2011£470,000 | 5 Bed House90, Kenton Road, Harrow, HA3 8AE90, Kenton Road, Harrow, HA3 8AE

Northwick Avenue, Harrow, HA3 has a total of 162 addresses. According to our analysis of all the public data, 13, Northwick Avenue, Harrow is the 23rd largest and the 34th most expensive property on the street.

When compared to the postcode district it is £212k more expensive than the average property in HA3.

• Saint Jerome Church of England Bilingual School

  1.1 km away
• Elmgrove Primary School & Nursery

  1.1 km away
• Mount Stewart Infant School

  1.3 km away

• Harrow High School

  500 m away
• St Gregory's Catholic Science College

  1.2 km away
• Claremont High School

  1.9 km away

• Northwick Park

  |

  100 m away
• Kenton

  |

  300 m away
• Harrow-on-the-Hill

  |

  1.1 km away

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