Over the past 26 years, there have been 19 property sales recorded in the SA4 4YN postcode area. The highest sale price reached £220,000, while the most recent sale was for a semi-detached house sold in April 2026 for £146,000.

The estimated average property value in SA4 4YN currently stands at £149,005, which is approximately 37.5% lower than the city average - making it a relatively affordable option for buyers.

In terms of size, the average price per square metre is approximately £1,662.

Property prices in SA4 4YN have risen by 4.1% over the past year , with a total increase of 36.6% over the past five years , and a long-term rise of 65.3% over the past decade .

The most common type of property sold in the area is semi-detached, making up around 84% of transactions , followed by terraced and other.

Housing in SA4 4YN is predominantly owner-occupied, with an estimated 77% of homes being lived in by the owners.

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Property Sales

12 Grenfell Avenue, Gorseinon, Swansea, SA4 4YN

🏠 Semi-detached
🛏️ 7bed
📐 1399 sq ft
Today
£235,462
streetscan.co.uk estimate
26 Apr 2024
£220,000
More details

15 Grenfell Avenue, Gorseinon, Swansea, SA4 4YN

🏠 Semi-detached
🛏️ 5bed
📐 915 sq ft
Today
£162,541
streetscan.co.uk estimate
17 Jul 2020
£120,000
11 Jan 2019
£87,000
View +1 more
More details

18 Grenfell Avenue, Gorseinon, Swansea, SA4 4YN

🏠 Semi-detached
🛏️ 5bed
📐 904 sq ft
Today
£102,940
streetscan.co.uk estimate
12 Nov 2021
£90,000
More details

25 Grenfell Avenue, Gorseinon, Swansea, SA4 4YN

🏠 Semi-detached
🛏️ 5bed
📐 915 sq ft
Today
£147,614
streetscan.co.uk estimate
9 Mar 2012
£83,500
1 Nov 2004
£35,000
More details

28 Grenfell Avenue, Gorseinon, Swansea, SA4 4YN

🏠 Semi-detached
🛏️ 5bed
📐 915 sq ft
Today
£148,325
streetscan.co.uk estimate
24 Jan 2020
£107,000
More details

30 Grenfell Avenue, Gorseinon, Swansea, SA4 4YN

🏠 Semi-detached
🛏️ 5bed
📐 1012 sq ft
14 Apr 2026
£146,000
31 May 2013
£95,000
View +1 more
More details

34 Grenfell Avenue, Gorseinon, Swansea, SA4 4YN

Today
£143,825
streetscan.co.uk estimate
22 Oct 1999
£34,000

35 Grenfell Avenue, Gorseinon, Swansea, SA4 4YN

🏠 Semi-detached
🛏️ 5bed
📐 915 sq ft
Today
£168,678
streetscan.co.uk estimate
14 Feb 2022
£147,000
11 May 2001
£27,000
More details

36 Grenfell Avenue, Gorseinon, Swansea, SA4 4YN

🏠 Other
🛏️ 5bed
📐 840 sq ft
Today
£152,538
streetscan.co.uk estimate
29 Feb 2024
£153,000
8 Jan 2021
£115,000
View +2 more
More details

40 Grenfell Avenue, Gorseinon, Swansea, SA4 4YN

🏠 Terraced
🛏️ 5bed
📐 915 sq ft
Today
£101,715
streetscan.co.uk estimate
10 Aug 2007
£68,000
More details

Area Insights

Data Sources

Properties at SA4 4YN appear nineteen times in the Land Registry records, with the latest transaction recorded on 14 Apr 2026. It also has nine Energy Performance Certificates (EPC) entries, the earliest dating back to 20 Jul 2021. 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.