Over the past 30 years, there have been 47 property sales recorded in the SA31 3NS postcode area. The highest sale price reached £210,000, while the most recent sale was for a semi-detached house sold in February 2025 for £165,500.

The estimated average property value in SA31 3NS currently stands at £199,681, which is approximately 22.7% 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 £3,022.

Property prices in SA31 3NS have risen by 4.9% over the past year , with a total increase of 34.9% over the past five years, and a long-term rise of 58.4% over the past decade.

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

Housing in SA31 3NS is predominantly owner-occupied, with an estimated 81% of homes being lived in by the owners.

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Property Sales

1 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

Today
£297,646
streetscan.co.uk estimate
1 Jul 1998
£67,000

13 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

🏠 Terraced
🛏️ 3bed
📐 581 sq ft
Today
£136,433
streetscan.co.uk estimate
27 Sep 2021
£114,995
24 Sep 2021
£120,000
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15 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

Today
£272,440
streetscan.co.uk estimate
6 Jan 1998
£51,000

17 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

🏠 Terraced
🛏️ 4bed
📐 732 sq ft
Today
£219,969
streetscan.co.uk estimate
29 Oct 2015
£131,000
1 Nov 2006
£141,000
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19 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

🏠 Terraced
🛏️ 3bed
📐 570 sq ft
Today
£191,932
streetscan.co.uk estimate
11 Sep 2015
£113,000
18 Aug 2006
£125,000
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2 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

🏠 Detached
🛏️ 3bed
📐 603 sq ft
Today
£162,197
streetscan.co.uk estimate
31 Aug 2023
£155,250
18 Apr 2019
£110,000
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21 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

Today
£216,597
streetscan.co.uk estimate
28 Sep 2001
£50,000
31 Mar 1999
£45,000
31 Mar 1995
£41,000

23 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

🏠 Terraced
🛏️ 3bed
📐 581 sq ft
Today
£160,141
streetscan.co.uk estimate
15 Dec 2017
£105,000
17 Aug 1995
£39,900
More details

25 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

🏠 Terraced
🛏️ 4bed
📐 818 sq ft
Today
£196,302
streetscan.co.uk estimate
25 Aug 2010
£119,000
4 Apr 2003
£87,000
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27 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

🏠 Terraced
🛏️ 4bed
📐 904 sq ft
Today
£225,766
streetscan.co.uk estimate
22 Sep 2023
£210,000
30 Jan 2015
£148,000
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4 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

🏠 Terraced
🛏️ 3bed
📐 574 sq ft
Today
£204,834
streetscan.co.uk estimate
26 Feb 2016
£120,000
2 Oct 2009
£119,000
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5 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

🏠 Terraced
🛏️ 4bed
📐 743 sq ft
Today
£203,774
streetscan.co.uk estimate
15 Jul 2021
£168,000
6 Aug 2015
£132,500
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6 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

🏠 Semi-detached
🛏️ 3bed
📐 581 sq ft
Today
£174,619
streetscan.co.uk estimate
19 Feb 2025
£165,500
7 Oct 2016
£116,000
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7 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

Today
£218,451
streetscan.co.uk estimate
27 Nov 1998
£45,000
1 Nov 1996
£42,250

9 Plas Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3NS

🏠 Semi-detached
🛏️ 3bed
📐 538 sq ft
Today
£199,992
streetscan.co.uk estimate
4 May 2001
£47,000
10 Mar 1995
£41,950
More details

Area Insights

Data Sources

Properties at SA31 3NS appear fourty-seven times in the Land Registry records, with the latest transaction recorded on 19 Feb 2025. It also has eleven 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.