Our Data Sources
21, Mansel Street, Llanelli has 61 entries in the Land Registry, most recently in February 2025 and a single entry in the EPC database dated February 2026.
We combine this information with that 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 21, Mansel Street, Llanelli, we estimate a market value of £110,496 and a rental value of £764 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £97,867 and £677 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Mansel Street, Llanelli as measuring 197 m2.
That makes it the 17th largest plot in the postcode, where 25 of the 29 other houses have recorded plot data.
Energy Efficiency
21, Mansel Street, Llanelli has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 03 Feb 2026.
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 21, Mansel Street, Llanelli completed on 21st February 2025 at £80,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 6 times.
Values of comparable properties have risen by 53.1% over the period since February 2025.
- Sold Feb 2025£80,000
- Sold Jul 2018£70,000
- Sold Jul 2016£74,000
Similar Properties Sold Nearby
Since 2015 126 properties similar to 21, Mansel Street, Llanelli have sold within a radius of 460 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 9th January 2026, was 28, Craddock Street, Llanelli, SA15 1BE, a freehold house which sold for £126,000.
Read more about house prices in SA15.
- Sold Jan 2026£126,000 | 3 Bed House28, Craddock Street, Llanelli, SA15 1BE28, Craddock Street, Llanelli, SA15 1BE
- Sold Jul 2025£85,000 | 3 Bed House24, Emma Street, Llanelli, SA15 1BA24, Emma Street, Llanelli, SA15 1BA
- Sold May 2025£71,000 | 3 Bed House31, Craddock Street, Llanelli, SA15 1BE31, Craddock Street, Llanelli, SA15 1BE
- Sold Feb 2025£67,500 | 3 Bed House25, Hick Street, Llanelli, SA15 1AR25, Hick Street, Llanelli, SA15 1AR
- Sold Jan 2025£73,000 | 3 Bed House21, Craddock Street, Llanelli, SA15 1BE21, Craddock Street, Llanelli, SA15 1BE
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 £112,746, ranging from £101,346 to £158,099.
- 23 Mansel Street
3 Bed House | 4 m | Est. Value: £103,696
- 19 Mansel Street
3 Bed House | 8 m | Est. Value: £108,983
- 25 Mansel Street
3 Bed House | 9 m | Est. Value: £104,468
- 27 Mansel Street
3 Bed House | 14 m | Est. Value: £101,346
- 29 Mansel Street
3 Bed House | 19 m | Est. Value: £102,136
Location Comparison
Of the 40 addresses on Mansel Street, Llanelli, SA15, 21, Mansel Street, Llanelli comes out as the 30th largest and the 33rd most expensive in our analysis of the public data.
It is also £85k less expensive than the average property across the SA15 district.
More reading links
Schools Nearby
Public Transport Nearby
- Llanelli|400 m away
- Bynea|4.0 km away
- Llangennech|5.6 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.












