Over the past 30 years, there have been 35 property sales recorded in the SA31 3PL postcode area. The highest sale price reached £290,000, while the most recent sale was for a detached house sold in August 2025 for £232,000.

The estimated average property value in SA31 3PL currently stands at £260,798, 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 £2,805.

Property prices in SA31 3PL have risen by 4% over the past year , with a total increase of 33.4% over the past five years, and a long-term rise of 58.6% over the past decade.

The most common type of property sold in the area is detached, making up around 69% of transactions , followed by terraced and semi-detached.

Housing in SA31 3PL is predominantly owner-occupied, with an estimated 85% of homes being lived in by the owners.

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Property Sales

10 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

Today
£362,717
streetscan.co.uk estimate
17 Apr 2003
£125,000
10 May 2002
£81,000
11 Dec 1998
£60,000

12 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Detached
🛏️ 5bed
📐 977 sq ft
Today
£265,071
streetscan.co.uk estimate
7 Dec 2012
£146,000
13 Jan 1999
£68,000
More details

13 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Detached
🛏️ 6bed
📐 861 sq ft
Today
£233,161
streetscan.co.uk estimate
22 Aug 2025
£232,000
15 Apr 2010
£165,000
More details

15 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Detached
🛏️ 8bed
📐 1248 sq ft
Today
£294,671
streetscan.co.uk estimate
22 Jun 2009
£167,000
More details

16 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Detached
🛏️ 5bed
📐 958 sq ft
Today
£253,944
streetscan.co.uk estimate
15 Dec 2017
£172,500
More details

17 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Detached
🛏️ 5bed
📐 1259 sq ft
Today
£288,080
streetscan.co.uk estimate
28 Nov 2018
£202,000
4 Sep 2003
£160,000
View +1 more
More details

18 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Detached
🛏️ 6bed
📐 1109 sq ft
Today
£253,848
streetscan.co.uk estimate
27 Nov 2015
£156,000
14 Sep 2001
£89,750
More details

19 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

Today
£404,174
streetscan.co.uk estimate
11 Jul 2003
£157,000

2 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Detached
🛏️ 6bed
📐 1055 sq ft
Today
£298,932
streetscan.co.uk estimate
27 Jan 2025
£290,000
More details

21 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Detached
🛏️ 7bed
📐 1292 sq ft
Today
£275,446
streetscan.co.uk estimate
26 Sep 2019
£200,000
14 Oct 1999
£66,000
More details

3 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Terraced
🛏️ 4bed
📐 581 sq ft
Today
£146,836
streetscan.co.uk estimate
6 Feb 2023
£140,000
2 Jul 2004
£115,000
View +2 more
More details

4 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Detached
🛏️ 7bed
📐 1378 sq ft
Today
£344,510
streetscan.co.uk estimate
21 Oct 2014
£210,000
9 Nov 2001
£86,000
More details

5 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Semi-detached
🛏️ 3bed
📐 570 sq ft
Today
£168,297
streetscan.co.uk estimate
21 Jul 2023
£154,950
15 Apr 2011
£125,000
View +3 more
More details

6 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Detached
🛏️ 7bed
📐 1072 sq ft
Today
£287,340
streetscan.co.uk estimate
12 Aug 2014
£170,000
17 Aug 2011
£160,000
View +1 more
More details

7 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Detached
🛏️ 4bed
📐 581 sq ft
Today
£198,158
streetscan.co.uk estimate
20 Aug 1999
£45,000
More details

9 Plas Y Ddol, Johnstown, Carmarthen, Carmarthenshire, SA31 3PL

🏠 Terraced
🛏️ 3bed
📐 570 sq ft
Today
£172,627
streetscan.co.uk estimate
13 Aug 2021
£145,000
21 Aug 1995
£42,000
More details

Area Insights

Data Sources

Properties at SA31 3PL appear thirty-five times in the Land Registry records, with the latest transaction recorded on 22 Aug 2025. It also has fourteen Energy Performance Certificates (EPC) entries, the earliest dating back to 6 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.