Over the past 28 years, there have been 12 property sales recorded in the SA31 3NN postcode area. The highest sale price reached £225,000, while the most recent sale was for a detached house sold in July 2025 for £225,000.

The estimated average property value in SA31 3NN currently stands at £252,383, 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 £2,739.

Property prices in SA31 3NN have risen by 4.6% over the past year , with a total increase of 34% over the past five years, and a long-term rise of 61.6% over the past decade.

The most common type of property sold in the area is semi-detached, making up around 75% of transactions , followed by detached.

Housing in SA31 3NN is predominantly owner-occupied, with an estimated 83% of homes being lived in by the owners.

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Property Sales

102 Llansteffan Road, Johnstown, Carmarthen, Carmarthenshire, SA31 3NN

🏠 Semi-detached
🛏️ 4bed
📐 883 sq ft
Today
£243,202
streetscan.co.uk estimate
26 Sep 2017
£155,000
More details

106 Llansteffan Road, Johnstown, Carmarthen, Carmarthenshire, SA31 3NN

🏠 Detached
🛏️ 6bed
📐 1076 sq ft
Today
£280,283
streetscan.co.uk estimate
19 May 2016
£167,500
25 Jul 2002
£49,000
More details

110 Llansteffan Road, Johnstown, Carmarthen, Carmarthenshire, SA31 3NN

🏠 Semi-detached
🛏️ 5bed
📐 883 sq ft
Today
£248,574
streetscan.co.uk estimate
4 Mar 2016
£144,000
4 Jun 2004
£135,000
More details

112 Llansteffan Road, Johnstown, Carmarthen, Carmarthenshire, SA31 3NN

🏠 Semi-detached
🛏️ 5bed
📐 904 sq ft
Today
£226,313
streetscan.co.uk estimate
11 Jul 2025
£225,000
28 Sep 2007
£164,000
More details

120 Llansteffan Road, Johnstown, Carmarthen, Carmarthenshire, SA31 3NN

Today
£267,733
streetscan.co.uk estimate
5 Aug 2005
£156,000

122 Llansteffan Road, Johnstown, Carmarthen, Carmarthenshire, SA31 3NN

Today
£244,134
streetscan.co.uk estimate
12 Jan 2007
£160,000

124 Llansteffan Road, Johnstown, Carmarthen, Carmarthenshire, SA31 3NN

🏠 Semi-detached
🛏️ 6bed
📐 1130 sq ft
Today
£254,069
streetscan.co.uk estimate
28 Jun 2019
£172,000
More details

126 Llansteffan Road, Johnstown, Carmarthen, Carmarthenshire, SA31 3NN

🏠 Semi-detached
🛏️ 5bed
📐 1087 sq ft
Today
£295,429
streetscan.co.uk estimate
23 Nov 2011
£170,000
More details

134 Llansteffan Road, Johnstown, Carmarthen, Carmarthenshire, SA31 3NN

Today
£275,303
streetscan.co.uk estimate
20 Jun 1997
£53,250

Area Insights

Data Sources

Properties at SA31 3NN appear twelve times in the Land Registry records, with the latest transaction recorded on 11 Jul 2025. It also has six Energy Performance Certificates (EPC) entries, the earliest dating back to 12 Jul 2013. 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.