Our Data Sources
12, Derwent Street, Llanelli has no recent1 records in the Land Registry and a single entry in the EPC database dated July 2022.
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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 12, Derwent Street, Llanelli, we estimate a market value of £148,761 and a rental value of £899 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £131,759 and £796 per month respectively.
Plot Size
HM Land Registry records the plot of land for 12, Derwent Street, Llanelli as measuring 162 m2.
That makes it the 2nd largest plot in the postcode, where 10 of the 12 other houses have recorded plot data.
Energy Efficiency
12, Derwent Street, Llanelli has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 15 Jul 2022.
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
The most recent sale of 12, Derwent Street, Llanelli completed on 20th February 1998 at £15,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
- Sold Feb 1998£15,000
Similar Properties Sold Nearby
Since 2014 135 properties similar to 12, Derwent Street, Llanelli have sold within a radius of 620 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 7th November 2025, was 86, Pembrey Road, Llanelli, SA15 3BP, a freehold house which sold for £140,000.
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.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £138,636, ranging from £134,991 to £150,224.
- 10 Derwent Street
3 Bed House | 6 m | Est. Value: £135,312
- 14 Derwent Street
3 Bed House | 7 m | Est. Value: £136,035
- 6 Derwent Street
4 Bed House | 17 m | Est. Value: £150,224
- 18 Derwent Street
3 Bed House | 19 m | Est. Value: £139,590
- 20 Derwent Street
3 Bed House | 25 m | Est. Value: £138,180
Location Comparison
Of the 63 addresses on Derwent Street, Llanelli, SA15, 12, Derwent Street, Llanelli comes out as the 9th largest and the 41st most expensive in our analysis of the public data.
It is also £48k less expensive than the average property across the SA15 district.
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
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












