Over the past 31 years, there have been 30 property sales recorded in the HA7 4RZ postcode area. The highest sale price reached £782,500, while the most recent sale was for a semi-detached house sold in March 2026 for £720,000.

The estimated average property value in HA7 4RZ currently stands at £689,697, which is roughly in line with the city average (within ±8%), suggesting property prices reflect broader market trends.

In terms of size, the average price per square metre is approximately £6,834.

Property prices in HA7 4RZ have risen by 2.5% over the past year , with a total increase of 19.8% over the past five years , and a long-term rise of 39.5% over the past decade .

The most common type of property sold in the area is semi-detached, making up around 97% of transactions , followed by terraced.

Housing in HA7 4RZ is predominantly owner-occupied, with an estimated 91% of homes being lived in by the owners.

Click on the map to change the analyzed area

Property Sales

109 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 5bed
📐 1335 sq ft
Today
£705,090
streetscan.co.uk estimate
7 Mar 2014
£429,950
More details

111 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 6bed
📐 1302 sq ft
Today
£720,000
streetscan.co.uk estimate
26 Mar 2026
£720,000
More details

113 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

Today
£678,774
streetscan.co.uk estimate
3 May 2007
£336,000
26 Jan 2001
£193,000

115 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 4bed
📐 1184 sq ft
Today
£769,652
streetscan.co.uk estimate
18 Jan 2019
£636,000
14 Sep 2006
£325,000
More details

117 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

Today
£653,675
streetscan.co.uk estimate
28 Jan 2005
£289,000
15 Jun 2004
£150,000

121 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

Today
£677,027
streetscan.co.uk estimate
31 Aug 2005
£300,000

123 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 4bed
📐 893 sq ft
Today
£718,182
streetscan.co.uk estimate
25 May 2016
£582,000
27 Jul 2009
£288,000
View +1 more
More details

125 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 6bed
📐 1206 sq ft
Today
£741,124
streetscan.co.uk estimate
15 Sep 2025
£750,000
More details

127 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 4bed
📐 1324 sq ft
Today
£704,376
streetscan.co.uk estimate
17 Jul 2025
£710,000
3 Sep 2004
£300,000
View +3 more
More details

129 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 5bed
📐 915 sq ft
Today
£621,790
streetscan.co.uk estimate
18 Oct 2024
£610,000
More details

135 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 6bed
📐 1507 sq ft
Today
£652,989
streetscan.co.uk estimate
24 Mar 2006
£290,000
More details

139 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 4bed
📐 936 sq ft
Today
£706,607
streetscan.co.uk estimate
15 May 2023
£665,000
9 Aug 1999
£157,000
More details

141 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 4bed
📐 1076 sq ft
Today
£734,866
streetscan.co.uk estimate
27 Jan 2026
£740,000
5 Aug 2019
£660,000
View +2 more
More details

143 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 5bed
📐 850 sq ft
Today
£764,941
streetscan.co.uk estimate
15 Jul 2022
£782,500
28 Mar 2019
£527,500
More details

147 Merrion Avenue, Stanmore, Harrow, Greater London, HA7 4RZ

🏠 Semi-detached
🛏️ 8bed
📐 1518 sq ft
Today
£776,704
streetscan.co.uk estimate
12 Feb 2007
£377,500
19 May 1995
£86,500
More details

Area Insights

Data Sources

Properties at HA7 4RZ appear thirty times in the Land Registry records, with the latest transaction recorded on 26 Mar 2026. It also has twelve Energy Performance Certificates (EPC) entries, the earliest dating back to 1 Aug 2017. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.

Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.