According to data from HM Land Registry, 19, Northwick Avenue, Harrow sits on a plot of 603 m².

We have plot size data on 25 out of 27 other houses in the postcode and 19, Northwick Avenue, Harrow sits on the 7th largest plot.

19, Northwick Avenue, Harrow has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 26 Jun 2019.

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 the Land Registry and our network of Estate Agents, there have been 61 sales of properties similar to 19, Northwick Avenue, Harrow within a radius of 580 metres since 2011.

The most recent example is 6, Mayfield Avenue, Harrow, HA3 8EU, a freehold house which sold for £770,000 on the 31st March 2025.

Read more about house prices in HA3.

• Sold Mar 2025£770,000 | 4 Bed House6, Mayfield Avenue, Harrow, HA3 8EU6, Mayfield Avenue, Harrow, HA3 8EU
• 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 Nov 2022£665,000 | 4 Bed House30, Carlton Avenue, Harrow, HA3 8AY30, Carlton Avenue, Harrow, HA3 8AY
• Sold Oct 2022£815,000 | 4 Bed House11, Hawthorne Avenue, Harrow, HA3 8AG11, Hawthorne Avenue, Harrow, HA3 8AG
• Sold Sep 2022£875,000 | 4 Bed House7, Hawthorne Avenue, Harrow, HA3 8AG7, Hawthorne Avenue, Harrow, HA3 8AG
• Sold Feb 2022£656,000 | 4 Bed House1, Northwick Avenue, Harrow, HA3 0AA1, Northwick Avenue, Harrow, HA3 0AA
• Sold Aug 2021£853,500 | 4 Bed House23, Hawthorne Avenue, Harrow, HA3 8AG23, Hawthorne Avenue, Harrow, HA3 8AG
• Sold Apr 2021£680,000 | 4 Bed House26, Northwick Avenue, Harrow, HA3 0AB26, Northwick Avenue, Harrow, HA3 0AB
• Sold Jan 2021£752,000 | 5 Bed House5, Rushout Avenue, Harrow, HA3 0AS5, Rushout Avenue, Harrow, HA3 0AS
• Sold Nov 2020£755,000 | 4 Bed House57, Northwick Avenue, Harrow, HA3 0AU57, Northwick Avenue, Harrow, HA3 0AU
• 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 Feb 2016£617,200 | 4 Bed House24, Northwick Avenue, Harrow, HA3 0AB24, Northwick Avenue, Harrow, HA3 0AB
• Sold Jan 2016£685,000 | 4 Bed House27, Hawthorne Avenue, Harrow, HA3 8AG27, 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 Feb 2011£420,000 | 4 Bed House44, Northwick Avenue, Harrow, HA3 0AB44, Northwick Avenue, Harrow, HA3 0AB

Northwick Avenue, Harrow, HA3 has a total of 162 addresses. According to our analysis of all the public data, 19, Northwick Avenue, Harrow is the 35th largest and the 27th most expensive property on the street.

When compared to the postcode district it is £242k 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.