HM Land Registry records the plot of land for 22, Northwick Avenue, Harrow as measuring 387 m².

That makes it the 19th largest plot in the postcode, where all 33 other houses have recorded plot data.

22, Northwick Avenue, Harrow has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 09 Jun 2020.

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

The most recent sale of 22, Northwick Avenue, Harrow completed on 22nd February 2008 at £375,000 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 56.9% over the period since February 2008.

• Sold Feb 2008£375,000

Since 2007 64 properties similar to 22, Northwick Avenue, Harrow have sold within a radius of 590 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 18th August 2025, was 4, Hawthorne Avenue, Harrow, HA3 8AG, a freehold house which sold for £727,500.

Read more about house prices in HA3.

• Sold Aug 2025£727,500 | 4 Bed House4, Hawthorne Avenue, Harrow, HA3 8AG4, Hawthorne Avenue, Harrow, HA3 8AG
• Sold Jul 2025£700,000 | 4 Bed House7, Ashburnham Gardens, Harrow, HA1 2JH7, Ashburnham Gardens, Harrow, HA1 2JH
• Sold Jun 2025£680,000 | 4 Bed House32, Hawthorne Avenue, Harrow, HA3 8AG32, Hawthorne Avenue, Harrow, HA3 8AG
• Sold May 2025£660,000 | 3 Bed House79, Manor Road, Harrow, HA1 2PG79, Manor Road, Harrow, HA1 2PG
• Sold Oct 2024£655,000 | 4 Bed House51, Northwick Avenue, Harrow, HA3 0AA51, Northwick Avenue, Harrow, HA3 0AA
• Sold Apr 2024£635,000 | 4 Bed House56, Manor Road, Harrow, HA1 2PD56, Manor Road, Harrow, HA1 2PD
• Sold Mar 2024£590,000 | 4 Bed House90, Northwick Avenue, Harrow, HA3 0AT90, Northwick Avenue, Harrow, HA3 0AT
• Sold Nov 2023£500,000 | 4 Bed House45, Crofts Road, Harrow, HA1 2PQ45, Crofts Road, Harrow, HA1 2PQ
• Sold Sep 2023£665,000 | 4 Bed House1, Flambard Road, Harrow, HA1 2NB1, Flambard Road, Harrow, HA1 2NB
• Sold Aug 2023£630,000 | 3 Bed House49, Elmwood Avenue, Harrow, HA3 8AJ49, Elmwood Avenue, Harrow, HA3 8AJ
• Sold Jun 2022£710,000 | 4 Bed House106, Northwick Avenue, Harrow, HA3 0AT106, Northwick Avenue, Harrow, HA3 0AT
• Sold Jan 2021£600,000 | 4 Bed House3, Hawthorne Avenue, Harrow, HA3 8AG3, Hawthorne Avenue, Harrow, HA3 8AG
• Sold May 2018£610,000 | 4 Bed House15, Woodway Crescent, Harrow, HA1 2NH15, Woodway Crescent, Harrow, HA1 2NH
• Sold Sep 2017£561,000 | 4 Bed House16, Northwick Avenue, Harrow, HA3 0AB16, Northwick Avenue, Harrow, HA3 0AB
• Sold May 2017£640,000 | 4 Bed House47, Northwick Avenue, Harrow, HA3 0AA47, Northwick Avenue, Harrow, HA3 0AA
• Sold Feb 2017£676,000 | 4 Bed House16, Hawthorne Avenue, Harrow, HA3 8AG16, Hawthorne Avenue, Harrow, HA3 8AG
• Sold Nov 2011£415,000 | 4 Bed House17, Northwick Avenue, Harrow, HA3 0AA17, Northwick Avenue, Harrow, HA3 0AA
• Sold Jul 2011£380,000 | 3 Bed House4, Woodway Crescent, Harrow, HA1 2NQ4, Woodway Crescent, Harrow, HA1 2NQ
• Sold Mar 2007£347,000 | 4 Bed House31, Hawthorne Avenue, Harrow, HA3 8AG31, Hawthorne Avenue, Harrow, HA3 8AG
• Sold Jan 2007£355,000 | 4 Bed House32, Northwick Avenue, Harrow, HA3 0AB32, Northwick Avenue, Harrow, HA3 0AB

Of the 162 addresses on Northwick Avenue, Harrow, HA3, 22, Northwick Avenue, Harrow comes out as the 71st largest and the 64th most expensive in our analysis of the public data.

It is also £105k more expensive than the average property across the HA3 district.

• Saint Jerome Church of England Bilingual School

  1.0 km away
• Elmgrove Primary School & Nursery

  1.1 km away
• Harris Primary Academy South Kenton

  1.3 km away

• Harrow High School

  500 m away
• St Gregory's Catholic Science College

  1.2 km away
• Wembley High Technology College

  1.9 km away

• Northwick Park

  |

  200 m away
• Kenton

  |

  300 m away
• Harrow-on-the-Hill

  |

  1.0 km away

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