Our Data Sources
Islwyn, Carmarthen has no recent1 records in the Land Registry and a single entry in the EPC database dated February 2022.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low 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 Islwyn, Carmarthen, we estimate a market value of £513,695 and a rental value of £1,626 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £454,987 and £1,440 per month respectively.
Plot Size
HM Land Registry records the plot of land for Islwyn, Carmarthen as measuring 1,087 m2.
That makes it the 3rd largest plot in the postcode, where all 5 other houses have recorded plot data.
Energy Efficiency
Islwyn, Carmarthen has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 04 Feb 2022.
The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (oil).
Sold Prices
The most recent sale of Islwyn, Carmarthen completed on 11th May 2001 at £87,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
- Sold May 2001£87,000
- Sold Aug 1996£54,000
Similar Properties Sold Nearby
Since 2009 31 properties similar to Islwyn, Carmarthen have sold within a radius of 5.0 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 18th August 2025, was Caeralaw, Carmarthen, SA32 8DX, a freehold house which sold for £425,000.
Read more about house prices in SA33.
- Sold Aug 2025£425,000 | 4 Bed HouseCaeralaw, Carmarthen, SA32 8DXCaeralaw, Carmarthen, SA32 8DX
- Sold Aug 2025£425,000 | 4 Bed HouseHolly Lodge, Carmarthen, SA33 5EYHolly Lodge, Carmarthen, SA33 5EY
- Sold Apr 2025£419,797 | 4 Bed House15 Caradog Court, Ferryside, SA17 5RR15 Caradog Court, Ferryside, SA17 5RR
- Sold Nov 2024£515,000 | 4 Bed HouseY Forlan, Heol Smyrna, Carmarthen, SA33 5ABY Forlan, Heol Smyrna, Carmarthen, SA33 5AB
- Sold Aug 2024£505,000 | 4 Bed HouseBlaentir, Carmarthen, SA33 5AYBlaentir, Carmarthen, SA33 5AY
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 £367,496, ranging from £175,679 to £633,460.
- Gwelfor
4 Bed House | 30 m | Est. Value: £478,225
- Ty Issa
4 Bed House | 43 m | Est. Value: £367,581
- Belmont
5 Bed House | 48 m | Est. Value: £527,448
- Danrhiw
5 Bed House | 52 m | Est. Value: £554,503
- Dolau Cottage
4 Bed House | 66 m | Est. Value: £335,362
Location Comparison
Of the 170 addresses on Llangain, Carmarthen, SA33, Islwyn, Carmarthen comes out as the 64th largest and the 18th most expensive in our analysis of the public data.
It is also £240k more expensive than the average property across the SA33 district.
More reading links
Schools Nearby
Public Transport Nearby
- Ferryside|4.2 km away
- Carmarthen|6.4 km away
- Kidwelly|8.4 km away
Available Internet Speeds
Internet coverage here is poor, based on recent Ofcom data, and connectivity may be weak or unavailable.
According to recent data from Ofcom, Slow or No Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
