Our Data Sources
17, Heol Dderwen, Llanelli has 31 entries in the Land Registry, most recently in August 2023 and a single entry in the EPC database dated January 2023.
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.
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 17, Heol Dderwen, Llanelli, we estimate a market value of £154,918 and a rental value of £921 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £137,213 and £816 per month respectively.
Plot Size
HM Land Registry records the plot of land for 17, Heol Dderwen, Llanelli as measuring 249 m2.
That makes it the 12th largest plot in the postcode, where all 30 other houses have recorded plot data.
Energy Efficiency
17, Heol Dderwen, Llanelli has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 09 Jan 2023.
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 17, Heol Dderwen, Llanelli completed on 2nd August 2023 at £128,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 3 times.
Values of comparable properties have risen by 39.9% over the period since August 2023.
- Sold Aug 2023£128,000
- Sold Jun 2003£41,000
- Sold Jun 2002£41,000
Similar Properties Sold Nearby
Since 2016 214 properties similar to 17, Heol Dderwen, Llanelli have sold within a radius of 640 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 8th May 2026, was 85, Penyfan Road, Llanelli, SA15 1JG, a freehold house which sold for £144,000.
Read more about house prices in SA15.
- Sold May 2026£144,000 | 3 Bed House85, Penyfan Road, Llanelli, SA15 1JG85, Penyfan Road, Llanelli, SA15 1JG
- Sold Aug 2025£136,000 | 3 Bed House22, Heol Dderwen, Llanelli, SA15 1JQ22, Heol Dderwen, Llanelli, SA15 1JQ
- Sold Jul 2025£129,995 | 3 Bed House69, Firth Road, Llanelli, SA15 1PN69, Firth Road, Llanelli, SA15 1PN
- Sold Apr 2025£130,000 | 3 Bed House75, Penyfan Road, Llanelli, SA15 1JG75, Penyfan Road, Llanelli, SA15 1JG
- Sold Oct 2024£125,000 | 3 Bed House4, Gorsedd, Llanelli, SA15 1JL4, Gorsedd, Llanelli, SA15 1JL
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 £144,153, ranging from £97,990 to £184,461.
- 16 Heol Dderwen
3 Bed House | 9 m | Est. Value: £138,174
- 15 Heol Dderwen
3 Bed House | 16 m | Est. Value: £143,967
- 14 Heol Dderwen
3 Bed House | 25 m | Est. Value: £140,817
- 20 Heol Dderwen
3 Bed House | 29 m | Est. Value: £154,731
- 13 Heol Dderwen
3 Bed House | 32 m | Est. Value: £141,192
Location Comparison
Of the 30 addresses on Heol Dderwen, Llanelli, SA15, 17, Heol Dderwen, Llanelli comes out as the 4th largest and the 3rd most expensive in our analysis of the public data.
It is also £46k less expensive than the average property across the SA15 district.
More reading links
Schools Nearby
Public Transport Nearby
- Llanelli|1.2 km away
- Bynea|3.3 km away
- Llangennech|4.8 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.












