Over the past 29 years, there have been 45 property sales recorded in the SA18 1JL postcode area. The highest sale price reached £422,500, while the most recent sale was for a terraced house sold in July 2025 for £125,000.

The estimated average property value in SA18 1JL currently stands at £214,940, 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 £2,221.

Property prices in SA18 1JL have risen by 4.2% over the past year , with a total increase of 34.5% over the past five years, and a long-term rise of 66% over the past decade.

The most common type of property sold in the area is detached, making up around 49% of transactions , followed by terraced and semi-detached.

Housing in SA18 1JL is predominantly owner-occupied, with an estimated 100% of homes being lived in by the owners.

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Property Sales

12 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£167,920
streetscan.co.uk estimate
29 Jun 2001
£39,950

16 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£186,915
streetscan.co.uk estimate
21 Dec 1995
£35,000

17 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Terraced
🛏️ 5bed
📐 1044 sq ft
Today
£125,365
streetscan.co.uk estimate
18 Jul 2025
£125,000
19 Dec 2013
£86,000
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More details

18 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£230,322
streetscan.co.uk estimate
14 Apr 2000
£47,000
22 Jul 1998
£45,000

2 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£90,826
streetscan.co.uk estimate
30 Jul 1998
£18,500

20 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Detached
🛏️ 6bed
📐 1001 sq ft
Today
£275,898
streetscan.co.uk estimate
24 Sep 2020
£205,000
22 Jan 2015
£95,000
More details

21 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£262,861
streetscan.co.uk estimate
11 Jun 2003
£90,000
27 Aug 1999
£38,000

24 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Detached
🛏️ 7bed
📐 1163 sq ft
Today
£311,768
streetscan.co.uk estimate
14 Apr 2004
£147,500
More details

26 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£214,268
streetscan.co.uk estimate
18 Dec 2006
£140,000
14 Sep 2001
£35,000

27 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£232,715
streetscan.co.uk estimate
11 Feb 2004
£105,000

28 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Terraced
🛏️ 3bed
📐 904 sq ft
Today
£175,876
streetscan.co.uk estimate
11 Jun 2004
£87,000
25 Jun 2001
£40,000
More details

30 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Semi-detached
🛏️ 4bed
📐 603 sq ft
Today
£112,718
streetscan.co.uk estimate
3 Aug 2018
£75,000
More details

31 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£2,547
streetscan.co.uk estimate
7 Feb 2025
£2,500
17 Oct 1997
£72,000

36 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Semi-detached
🛏️ 5bed
📐 1066 sq ft
Today
£175,440
streetscan.co.uk estimate
1 Jul 2022
£160,000
23 Jan 2020
£105,000
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More details

38 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£108,676
streetscan.co.uk estimate
21 Feb 2025
£103,000

39 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Detached
🛏️ 7bed
📐 1757 sq ft
Today
£444,702
streetscan.co.uk estimate
30 Jan 2009
£260,000
23 Dec 2004
£195,000
More details

41 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Detached
🛏️ 9bed
📐 1873 sq ft
Today
£445,826
streetscan.co.uk estimate
12 Jul 2013
£250,000
More details

42 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Detached
🛏️ 6bed
📐 1067 sq ft
Today
£391,631
streetscan.co.uk estimate
16 Oct 2012
£220,000
11 Sep 1996
£38,000
More details

5 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£215,143
streetscan.co.uk estimate
3 Apr 2002
£58,500

50 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Semi-detached
🛏️ 5bed
📐 1023 sq ft
Today
£146,728
streetscan.co.uk estimate
4 Mar 2016
£85,000
More details

54 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Detached
🛏️ 4bed
📐 829 sq ft
Today
£220,175
streetscan.co.uk estimate
13 Apr 2012
£125,000
23 Jun 2006
£90,000
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More details

56 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Detached
🛏️ 6bed
📐 1098 sq ft
Today
£265,031
streetscan.co.uk estimate
5 Oct 2006
£170,000
5 Sep 1997
£65,000
More details

6 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Detached
🛏️ 7bed
📐 2906 sq ft
Today
£428,908
streetscan.co.uk estimate
14 Apr 2023
£422,500
More details

7 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Detached
🛏️ 5bed
📐 1141 sq ft
Today
£166,225
streetscan.co.uk estimate
12 Feb 2016
£100,000
More details

8 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

🏠 Terraced
🛏️ 5bed
📐 947 sq ft
Today
£145,223
streetscan.co.uk estimate
13 May 2016
£85,500
19 Apr 2016
£90,000
View +1 more
More details

9 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£186,940
streetscan.co.uk estimate
11 Oct 1996
£33,000

Ty Gwyn, 25 Highfield Road, Twyn, Ammanford, Carmarthenshire, SA18 1JL

Today
£231,994
streetscan.co.uk estimate
4 Apr 2003
£79,950

Area Insights

Data Sources

Properties at SA18 1JL appear fourty-five times in the Land Registry records, with the latest transaction recorded on 18 Jul 2025. It also has fifteen Energy Performance Certificates (EPC) entries, the earliest dating back to 3 Oct 2012. 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.