Our Data Sources
21, Clos Y Dderwen, Llanelli has no recent1 records in the the Land Registry and a single entry in the EPC database dated June 2025.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
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 21, Clos Y Dderwen, Llanelli, we estimate a market value of £458,184 and a rental value of £1,595 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £405,820 and £1,412 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Clos Y Dderwen, Llanelli as measuring 811 m2.
That makes it the 7th largest plot in the postcode, where 23 of the 25 other houses have recorded plot data.
Energy Efficiency
21, Clos Y Dderwen, Llanelli has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 13 Jun 2025.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, oil.
Sold Prices
The most recent sale of 21, Clos Y Dderwen, Llanelli completed on 9th June 1998 at £129,500 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
- Sold Jun 1998£129,500
- Sold Oct 1996£17,000
Similar Properties Sold Nearby
Over the past 2 years 15 properties similar to 21, Clos Y Dderwen, Llanelli have sold within a radius of 1.3 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 25th March 2024, was 25A, Penygroes Road, Llanelli, SA14 7LA, a freehold house which sold for £378,000.
Read more about house prices in SA14.
- Sold Mar 2024£378,000 | 5 Bed House25A, Penygroes Road, Llanelli, SA14 7LA25A, Penygroes Road, Llanelli, SA14 7LA
- Sold Sep 2022£425,000 | 5 Bed House69, Black Lion Road, Llanelli, SA14 6RT69, Black Lion Road, Llanelli, SA14 6RT
- Sold Mar 2022£390,000 | 5 Bed House46A, Carmarthen Road, Llanelli, SA14 6SU46A, Carmarthen Road, Llanelli, SA14 6SU
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 25 addresses on Clos Y Dderwen, Cross Hands, Llanelli, SA14, 21, Clos Y Dderwen, Llanelli comes out as the 4th largest and the 3rd most expensive in our analysis of the public data.
It is also £246k more expensive than the average property across the SA14 district.
More reading links
Schools Nearby
Public Transport Nearby
- Ammanford|5.9 km away
- Pantyffynnon|6.3 km away
- Llandybie|7.1 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












