Our Data Sources
21, James Street, Llanelli has a single entry in the Land Registry from August 2019 and a single entry in the EPC database dated January 2019.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 21, James Street, Llanelli would be worth £153,313, with a potential rental value of £932 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £135,791, with a rental value of £825 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, James Street, Llanelli occupies a 121 m2 plot as recorded by HM Land Registry.
Of the 37 other houses in this postcode, 35 have recorded plot sizes, and this one ranks as the 33rd largest.
Energy Efficiency
21, James Street, Llanelli has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 04 Jan 2019.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
21, James Street, Llanelli last changed hands on 16th August 2019, selling for £112,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 114.6% since August 2019.
- Sold Aug 2019£112,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 170 sales of comparable properties within 470 metres of 21, James Street, Llanelli since 2021.
Most recently, 16, Als Street, Llanelli, SA15 1SN, a freehold house, sold at £1,100,000 on the 27th March 2026.
Read more about house prices in SA15.
- Sold Mar 2026£1,100,000 | 3 Bed House16, Als Street, Llanelli, SA15 1SN16, Als Street, Llanelli, SA15 1SN
- Sold Feb 2026£132,000 | 4 Bed House39, Marble Hall Road, Llanelli, SA15 1NN39, Marble Hall Road, Llanelli, SA15 1NN
- Sold Dec 2025£173,000 | 4 Bed House1, Als Street, Llanelli, SA15 1SN1, Als Street, Llanelli, SA15 1SN
- Sold Dec 2025£145,000 | 4 Bed House15, Temple Street, Llanelli, SA15 1HT15, Temple Street, Llanelli, SA15 1HT
- Sold Jul 2025£138,000 | 3 Bed House25, James Street, Llanelli, SA15 1DU25, James Street, Llanelli, SA15 1DU
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £115,614, ranging from £74,093 to £147,969.
- 23 James Street
4 Bed House | 6 m | Est. Value: £147,969
- 25 James Street
3 Bed House | 11 m | Est. Value: £140,331
- 27 James Street
3 Bed House | 16 m | Est. Value: £140,992
- 29 James Street
3 Bed Flat | 22 m | Est. Value: £92,055
- 4 James Street
4 Bed House | 23 m | Est. Value: £147,396
Location Comparison
Our analysis of the public data ranks 21, James Street, Llanelli as the 41st largest and the 26th most expensive of the 132 addresses on James Street, Llanelli, SA15.
Against the SA15 postcode district average, it is £44k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Llanelli|1.2 km away
- Bynea|4.0 km away
- Llangennech|5.2 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












