According to data from HM Land Registry, 21, Greystone Gardens, Harrow sits on a plot of 628 m².

We have plot size data on 11 out of 11 other houses in the postcode and 21, Greystone Gardens, Harrow sits on the 11th largest plot.

21, Greystone Gardens, Harrow has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 17 Sep 2020.

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, 21, Greystone Gardens, Harrow was last sold on 5th February 2021 for £915,000 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 9.9%.

• Sold Feb 2021£915,000

According to the Land Registry and our network of Estate Agents, there have been 115 sales of properties similar to 21, Greystone Gardens, Harrow within a radius of 630 metres since 2012.

The most recent example is 3, Bulmer Gardens, Harrow, HA3 0PA, a freehold house which sold for £940,000 on the 1st April 2026.

Read more about house prices in HA3.

• Sold Apr 2026£940,000 | 5 Bed House3, Bulmer Gardens, Harrow, HA3 0PA3, Bulmer Gardens, Harrow, HA3 0PA
• Sold Jul 2025£950,000 | 4 Bed House7, Dovedale Avenue, Harrow, HA3 0DX7, Dovedale Avenue, Harrow, HA3 0DX
• Sold Jun 2025£1,000,000 | 4 Bed House75, The Ridgeway, Harrow, HA3 0LW75, The Ridgeway, Harrow, HA3 0LW
• Sold Aug 2024£900,000 | 5 Bed House51, Draycott Avenue, Harrow, HA3 0BL51, Draycott Avenue, Harrow, HA3 0BL
• Sold May 2024£890,000 | 5 Bed House12, Sheridan Gardens, Harrow, HA3 0JT12, Sheridan Gardens, Harrow, HA3 0JT
• Sold May 2024£885,000 | 5 Bed House8, The Ridgeway, Harrow, HA3 0LL8, The Ridgeway, Harrow, HA3 0LL
• Sold Feb 2024£900,000 | 5 Bed House98, Draycott Avenue, Harrow, HA3 0BY98, Draycott Avenue, Harrow, HA3 0BY
• Sold Dec 2023£872,500 | 5 Bed House11, Briar Road, Harrow, HA3 0DP11, Briar Road, Harrow, HA3 0DP
• Sold Aug 2023£855,000 | 4 Bed House17, Greystone Gardens, Harrow, HA3 0EF17, Greystone Gardens, Harrow, HA3 0EF
• Sold Feb 2023£1,100,000 | 5 Bed House8, Woodhill Crescent, Harrow, HA3 0LY8, Woodhill Crescent, Harrow, HA3 0LY
• Sold Sep 2021£1,035,000 | 5 Bed House32, Greystone Gardens, Harrow, HA3 0EG32, Greystone Gardens, Harrow, HA3 0EG
• Sold Sep 2021£760,000 | 5 Bed House112, Draycott Avenue, Harrow, HA3 0BY112, Draycott Avenue, Harrow, HA3 0BY
• Sold Sep 2021£870,000 | 4 Bed House6, Lapstone Gardens, Harrow, HA3 0ED6, Lapstone Gardens, Harrow, HA3 0ED
• Sold Jun 2021£975,000 | 5 Bed House11, Woodhill Crescent, Harrow, HA3 0LU11, Woodhill Crescent, Harrow, HA3 0LU
• Sold Apr 2018£900,000 | 5 Bed House18, Lapstone Gardens, Harrow, HA3 0ED18, Lapstone Gardens, Harrow, HA3 0ED
• Sold May 2017£930,000 | 5 Bed House8, Greystone Gardens, Harrow, HA3 0EG8, Greystone Gardens, Harrow, HA3 0EG
• Sold Oct 2016£845,000 | 5 Bed House112, Northwick Avenue, Harrow, HA3 0AT112, Northwick Avenue, Harrow, HA3 0AT
• Sold Jun 2015£837,500 | 5 Bed House2, Lapstone Gardens, Harrow, HA3 0ED2, Lapstone Gardens, Harrow, HA3 0ED
• Sold Sep 2014£729,950 | 5 Bed House63, Draycott Avenue, Harrow, HA3 0DD63, Draycott Avenue, Harrow, HA3 0DD
• Sold May 2012£625,000 | 5 Bed House9, Greystone Gardens, Harrow, HA3 0EF9, Greystone Gardens, Harrow, HA3 0EF

Greystone Gardens, Harrow, HA3 has a total of 31 addresses. According to our analysis of all the public data, 21, Greystone Gardens, Harrow is the 13th largest and the 10th most expensive property on the street.

When compared to the postcode district it is £425k more expensive than the average property in HA3.

• Mount Stewart Infant School

  700 m away
• Mount Stewart Junior School

  700 m away
• Uxendon Manor Primary School

  1.0 km away

• St Gregory's Catholic Science College

  600 m away
• Harrow High School

  1.1 km away
• Claremont High School

  1.3 km away

• Kenton

  |

  400 m away
• Northwick Park

  |

  500 m away

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