Our Data Sources
18, Derwent Street, Llanelli has no records in the Land Registry and a single entry in the EPC database dated April 2024.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 18, Derwent Street, Llanelli is in very good condition we estimate a sale value of £146,569 and a rental value of £893 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £129,819 and a rental value of £791 per month.
Energy Efficiency
18, Derwent Street, Llanelli has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 09 Apr 2024.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 137 sales of properties similar to 18, Derwent Street, Llanelli within a radius of 630 metres since 2008.
The most recent example is 86, Pembrey Road, Llanelli, SA15 3BP, a freehold house which sold for £140,000 on the 7th November 2025.
Read more about house prices in SA15.
- Sold Nov 2025£140,000 | 3 Bed House86, Pembrey Road, Llanelli, SA15 3BP86, Pembrey Road, Llanelli, SA15 3BP
- Sold Oct 2025£125,000 | 3 Bed House96, Pembrey Road, Llanelli, SA15 3BP96, Pembrey Road, Llanelli, SA15 3BP
- Sold Apr 2025£128,000 | 3 Bed House2, Derwent Street, Llanelli, SA15 3EP2, Derwent Street, Llanelli, SA15 3EP
- Sold Jan 2025£128,000 | 3 Bed House10, Derwent Street, Llanelli, SA15 3EP10, Derwent Street, Llanelli, SA15 3EP
- Sold Dec 2024£118,500 | 3 Bed House36, Greenway Street, Llanelli, SA15 3BS36, Greenway Street, Llanelli, SA15 3BS
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £148,335, ranging from £134,991 to £198,637.
- 20 Derwent Street
3 Bed House | 6 m | Est. Value: £138,180
- 14 Derwent Street
3 Bed House | 12 m | Est. Value: £136,035
- 24 Derwent Street
3 Bed House | 16 m | Est. Value: £138,887
- 12 Derwent Street
3 Bed House | 19 m | Est. Value: £141,677
- 10 Derwent Street
3 Bed House | 25 m | Est. Value: £135,312
Location Comparison
Derwent Street, Llanelli, SA15 has a total of 63 addresses. According to our analysis of all the public data, 18, Derwent Street, Llanelli is the 16th largest and the 45th most expensive property on the street.
When compared to the postcode district it is £51k less expensive than the average property in SA15.
More reading links
Schools Nearby
Public Transport Nearby
- Llanelli|1.4 km away
- Bynea|5.0 km away
- Pembrey & Burry Port|5.5 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












