Our Data Sources
23, Union Buildings, Llanelli has 31 entries in the Land Registry, most recently in December 2022 and a single entry in the EPC database dated May 2016.
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
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 23, Union Buildings, Llanelli is in very good condition we estimate a sale value of £144,137 and a rental value of £849 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £127,664 and a rental value of £752 per month.
Plot Size
According to data from HM Land Registry, 23, Union Buildings, Llanelli sits on a plot of 136 m2.
We have plot size data on 30 out of 31 other houses in the postcode and 23, Union Buildings, Llanelli sits on the 4th largest plot.
Energy Efficiency
23, Union Buildings, Llanelli has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 06 May 2016.
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
According to HM Land Registry, 23, Union Buildings, Llanelli was last sold on 1st December 2022 for £145,000 and was recorded as a freehold house.
The property has had 3 sales since 1995.
Since December 2022, the market for similar properties has risen by 39.2%.
- Sold Dec 2022£145,000
- Sold Jul 2016£98,000
- Sold Oct 2002£23,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 37 sales of properties similar to 23, Union Buildings, Llanelli within a radius of 610 metres since 2007.
The most recent example is 31, Union Buildings, Llanelli, SA15 3JW, a freehold house which sold for £135,000 on the 31st March 2025.
Read more about house prices in SA15.
- Sold Mar 2025£135,000 | 3 Bed House31, Union Buildings, Llanelli, SA15 3JW31, Union Buildings, Llanelli, SA15 3JW
- Sold Mar 2025£138,000 | 3 Bed House36, Pentrepoeth Road, Llanelli, SA15 4HL36, Pentrepoeth Road, Llanelli, SA15 4HL
- Sold Aug 2024£83,000 | 3 Bed House35, Felinfoel Road, Llanelli, SA15 3JQ35, Felinfoel Road, Llanelli, SA15 3JQ
- Sold May 2024£140,500 | 3 Bed House21, Gilbert Crescent, Llanelli, SA15 3RB21, Gilbert Crescent, Llanelli, SA15 3RB
- Sold Feb 2024£50,000 | 3 Bed House41, Felinfoel Road, Llanelli, SA15 3JQ41, Felinfoel Road, Llanelli, SA15 3JQ
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 £138,669, ranging from £123,263 to £147,799.
- 21 Union Buildings
3 Bed House | 5 m | Est. Value: £143,685
- 25 Union Buildings
4 Bed House | 6 m | Est. Value: £145,030
- 19 Union Buildings
3 Bed House | 10 m | Est. Value: £132,819
- 27 Union Buildings
3 Bed House | 10 m | Est. Value: £147,799
- 15 Union Buildings
3 Bed House | 20 m | Est. Value: £139,445
Location Comparison
Union Buildings, Llanelli, SA15 has a total of 40 addresses. According to our analysis of all the public data, 23, Union Buildings, Llanelli is the 28th largest and the 29th most expensive property on the street.
When compared to the postcode district it is £53k less expensive than the average property in SA15.
More reading links
Schools Nearby
Public Transport Nearby
- Llanelli|1.6 km away
- Bynea|4.6 km away
- Llangennech|5.6 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












