Our Data Sources
6, Mostyn Avenue, Carmarthen has 21 entries in the Land Registry, most recently in December 2020 and a single entry in the EPC database dated May 2023.
We combine this information with that 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
In very good condition, we estimate 6, Mostyn Avenue, Carmarthen would be worth £478,823, with a potential rental value of £1,736 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £424,100, with a rental value of £1,538 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
6, Mostyn Avenue, Carmarthen occupies a 641 m2 plot as recorded by HM Land Registry.
Of the 15 other houses in this postcode, 13 have recorded plot sizes, and this one ranks as the 3rd largest.
Energy Efficiency
6, Mostyn Avenue, Carmarthen has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 09 May 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
6, Mostyn Avenue, Carmarthen last changed hands on 18th December 2020, selling for £365,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 20.1% since December 2020.
- Sold Dec 2020£365,000
- Sold Dec 1998£89,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 26 sales of comparable properties within 1.5 kilometres of 6, Mostyn Avenue, Carmarthen since 2009.
Most recently, 17, Ffordd Y Briallu, Carmarthen, SA31 2JU, a freehold house, sold at £416,000 on the 20th January 2026.
Read more about house prices in SA31.
- Sold Jan 2026£416,000 | 4 Bed House17, Ffordd Y Briallu, Carmarthen, SA31 2JU17, Ffordd Y Briallu, Carmarthen, SA31 2JU
- Sold Aug 2025£420,000 | 4 Bed HouseTy'R Orsaf, Park Close, Carmarthen, SA31 2JRTy'R Orsaf, Park Close, Carmarthen, SA31 2JR
- Sold Aug 2023£440,000 | 4 Bed House86, Abergwili Road, Carmarthen, SA31 2HJ86, Abergwili Road, Carmarthen, SA31 2HJ
- Sold Mar 2023£395,000 | 4 Bed House16, Parc Y Neuadd, Carmarthen, SA31 2DF16, Parc Y Neuadd, Carmarthen, SA31 2DF
- Sold Dec 2022£395,000 | 4 Bed House17, Parc Y Neuadd, Carmarthen, SA31 2DF17, Parc Y Neuadd, Carmarthen, SA31 2DF
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 £368,762, ranging from £269,642 to £616,355.
- 5 Mostyn Avenue
4 Bed House | 20 m | Est. Value: £378,577
- 23 Bronwydd Road
4 Bed House | 33 m | Est. Value: £284,971
- 25 Bronwydd Road
4 Bed House | 34 m | Est. Value: £299,264
- 21 Bronwydd Road
5 Bed House | 39 m | Est. Value: £352,769
- 27 Bronwydd Road
5 Bed House | 43 m | Est. Value: £379,391
Location Comparison
Our analysis of the public data ranks 6, Mostyn Avenue, Carmarthen as the 7th largest and the 4th most expensive of the 15 addresses on Mostyn Avenue, Carmarthen, SA31.
Against the SA31 postcode district average, it is £211k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Carmarthen|2.3 km away
- Ferryside|12.6 km away
- Kidwelly|15.2 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
