Over the past 30 years, there have been 49 property sales recorded in the SA31 3NY postcode area. The highest sale price reached £186,000, while the most recent sale was for a terraced house sold in July 2025 for £165,000.

The estimated average property value in SA31 3NY currently stands at £179,028, which is approximately 30.7% 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 £2,445.

Property prices in SA31 3NY have risen by 5.1% over the past year , with a total increase of 35.5% over the past five years, and a long-term rise of 62.4% over the past decade.

The most common type of property sold in the area is terraced, making up around 94% of transactions , followed by semi-detached.

Housing in SA31 3NY is predominantly owner-occupied, with an estimated 70% of homes being lived in by the owners.

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Property Sales

1 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 5bed
📐 818 sq ft
Today
£201,072
streetscan.co.uk estimate
14 Oct 2003
£74,500
More details

10 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Semi-detached
🛏️ 5bed
📐 753 sq ft
Today
£178,276
streetscan.co.uk estimate
21 Sep 2005
£105,000
More details

11 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 5bed
📐 731 sq ft
Today
£176,395
streetscan.co.uk estimate
5 Mar 2007
£116,000
10 Jan 2000
£41,500
More details

13 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 5bed
📐 721 sq ft
Today
£199,787
streetscan.co.uk estimate
15 Feb 2017
£121,500
9 Mar 2016
£81,500
More details

14 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 4bed
📐 732 sq ft
Today
£140,804
streetscan.co.uk estimate
25 May 2018
£90,000
More details

17 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 4bed
📐 721 sq ft
Today
£165,482
streetscan.co.uk estimate
15 Jul 2025
£165,000
24 Mar 2020
£100,000
More details

18 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

Today
£222,919
streetscan.co.uk estimate
15 Sep 2000
£48,000

19 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

Today
£176,328
streetscan.co.uk estimate
25 Apr 2025
£170,000

2 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 5bed
📐 732 sq ft
Today
£182,190
streetscan.co.uk estimate
17 Dec 2019
£129,000
More details

20 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 4bed
📐 764 sq ft
Today
£198,269
streetscan.co.uk estimate
22 Oct 2014
£120,000
More details

22 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 4bed
📐 753 sq ft
Today
£209,201
streetscan.co.uk estimate
21 Feb 2014
£118,500
4 Nov 2005
£105,000
View +3 more
More details

23 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 5bed
📐 829 sq ft
Today
£280,801
streetscan.co.uk estimate
31 Jan 2002
£67,000
22 Oct 1999
£38,500
View +1 more
More details

26 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

Today
£196,952
streetscan.co.uk estimate
17 Jul 2009
£115,000
22 Jun 2000
£41,500
17 Dec 1999
£39,500
23 May 1997
£39,000

27 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

Today
£228,318
streetscan.co.uk estimate
13 Sep 2002
£64,000
4 Mar 2000
£39,500
6 May 1997
£37,500

29 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 5bed
📐 775 sq ft
Today
£199,269
streetscan.co.uk estimate
21 Sep 2001
£46,000
17 Dec 1999
£43,000
View +1 more
More details

3 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 5bed
📐 829 sq ft
Today
£186,829
streetscan.co.uk estimate
21 Jun 2024
£176,500
27 May 2016
£123,000
More details

30 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 4bed
📐 775 sq ft
Today
£203,142
streetscan.co.uk estimate
12 Jan 2024
£186,000
28 Mar 2002
£52,000
View +1 more
More details

33 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

Today
£209,244
streetscan.co.uk estimate
26 Jul 2002
£55,000

34 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 4bed
📐 775 sq ft
Today
£199,654
streetscan.co.uk estimate
17 Mar 2017
£122,000
28 Oct 2005
£124,000
View +1 more
More details

36 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 4bed
📐 753 sq ft
Today
£143,638
streetscan.co.uk estimate
29 Jul 2016
£90,000
More details

4 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 5bed
📐 732 sq ft
Today
£164,385
streetscan.co.uk estimate
4 Nov 2016
£103,000
28 Sep 2001
£48,500
More details

5 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 4bed
📐 840 sq ft
Today
£132,920
streetscan.co.uk estimate
22 Nov 2021
£115,000
More details

6 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 5bed
📐 807 sq ft
Today
£158,734
streetscan.co.uk estimate
8 Jan 2018
£103,000
More details

7 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Terraced
🛏️ 5bed
📐 743 sq ft
Today
£117,829
streetscan.co.uk estimate
21 Feb 2022
£100,000
30 Jun 2006
£120,000
More details

8 Glan Yr Ystrad, Johnstown, Carmarthen, Carmarthenshire, SA31 3NY

🏠 Semi-detached
🛏️ 5bed
📐 743 sq ft
Today
£202,304
streetscan.co.uk estimate
14 Aug 2000
£45,000
26 Jan 1996
£40,000
More details

Area Insights

Data Sources

Properties at SA31 3NY appear fourty-nine times in the Land Registry records, with the latest transaction recorded on 15 Jul 2025. It also has twenty Energy Performance Certificates (EPC) entries, the earliest dating back to 26 Feb 2010. 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.