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Upper William StreetHouse Prices / Wales, Carmarthenshire
Last updated May 2026
Key Street Insights
Upper William Street is a residential street with 17 addresses.
It ranks as the 452nd largest and 152nd most expensive of the 1,056 streets in the SA15 area. The dominant property type is a period house built between 1800 and 1911.
The street contains a total of 17 properties: 17 houses.
17
Properties
- Houses
Key Street Insights
Upper William Street is a residential street with 17 addresses.
It ranks as the 452nd largest and 152nd most expensive of the 1,056 streets in the SA15 area. The dominant property type is a period house built between 1800 and 1911.
The street contains a total of 17 properties: 17 houses.
17
Properties
- Houses
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House Priceson Upper William Street
Sale prices range from £105,703 for 3 bedroom freehold houses with a garden (656 ft2) to £232,045 for 4 bedroom freehold houses with a garden (1,367 ft2) .
Monthly rental prices range from £741 pcm for 3 bed houses to £1,070 pcm for 4 bed houses.
The gross rental yield is between 5.5% and 8.4%.
The average value per square foot is £147.
Average Sale Value
£131,463
Average Rental Value
£825 pcm
Average Rental Yield
7.5% /year
Average Value Per Sqft
£147 /ft2
Sales Market Trendson Upper William Street
The last sale on Upper William Street sold for £105,000 on 24th March 2023. Since then prices are up an average of 10.2%.
The current average value in the street is £131,463.
The Upper William Street Sales Market has increased by 73.6% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 3% | £131,463 |
| April 2025 | 2.3% | £127,585 |
| April 2024 | 2.9% | £124,698 |
| April 2023 | 4.9% | £121,135 |
| April 2022 | 14.9% | £115,458 |
| April 2021 | 9.3% | £100,485 |
| April 2020 | 7.8% | £91,970 |
| April 2019 | 2.5% | £85,280 |
| April 2018 | 1.3% | £83,190 |
| April 2017 | 8.5% | £82,127 |
| April 2016 | -2.6% | £75,711 |
| April 2015 | 1.4% | £77,733 |
| April 2014 | 1.7% | £76,666 |
| April 2013 | 2.1% | £75,414 |
| April 2012 | -5.5% | £73,898 |
| April 2011 | -0.8% | £78,214 |
| April 2010 | 1.2% | £78,826 |
| April 2009 | -15.7% | £77,917 |
| April 2008 | -0.9% | £92,455 |
| April 2007 | 0% | £93,257 |
Rental Market Trendson Upper William Street
The current average rental value in the street is £825.
The Upper William Street Rental Market has increased by 73.4% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 4% | £825pcm |
| April 2025 | 5% | £794pcm |
| April 2024 | 7.3% | £756pcm |
| April 2023 | 7.5% | £704pcm |
| April 2022 | 16.3% | £655pcm |
| April 2021 | 7.4% | £563pcm |
| April 2020 | 2.7% | £525pcm |
| April 2019 | 2% | £511pcm |
| April 2018 | 1.8% | £501pcm |
| April 2017 | 3.4% | £492pcm |
| April 2016 | 2.7% | £476pcm |
| April 2015 | 1.6% | £463pcm |
| April 2014 | 2.1% | £456pcm |
| April 2013 | 0.7% | £447pcm |
| April 2012 | 1% | £443pcm |
| April 2011 | -1% | £439pcm |
| April 2010 | 0.4% | £444pcm |
| April 2009 | -6.6% | £442pcm |
| April 2008 | 3.9% | £473pcm |
| April 2007 | 0% | £455pcm |
Explore Propertieson Upper William Street, Llanelli, SA15
- 14, Upper William Street, Llanelli, SA15 1SL
- 15, Upper William Street, Llanelli, SA15 1SL3 bed period house
- 16, Upper William Street, Llanelli, SA15 1SL
- 17, Upper William Street, Llanelli, SA15 1SL3 bed period house
- 18, Upper William Street, Llanelli, SA15 1SL3 bed period house
- 19, Upper William Street, Llanelli, SA15 1SL
- 20, Upper William Street, Llanelli, SA15 1SL3 bed period house
- 21, Upper William Street, Llanelli, SA15 1SL3 bed period house
- 22, Upper William Street, Llanelli, SA15 1SL
- 23, Upper William Street, Llanelli, SA15 1SL3 bed period house
- 24, Upper William Street, Llanelli, SA15 1SL3 bed period house
- 25, Upper William Street, Llanelli, SA15 1SL3 bed period house
- 26, Upper William Street, Llanelli, SA15 1SL
- 27, Upper William Street, Llanelli, SA15 1SL
- 28, Upper William Street, Llanelli, SA15 1SL
- 29, Upper William Street, Llanelli, SA15 1SL4 bed period house
- 30, Upper William Street, Llanelli, SA15 1SL3 bed period house
Sales Historyon Upper William Street, Llanelli, SA15
The last sale was on 24th March 2023 for £105,000 and since then the market in the area has increased by 10.2%. The street has had a total of 24 sales since 1995.
Upper William Street, Llanelli, SA15 has seen 2 sales in the last three years and no sales in the last twelve months.
Sold Mar 2023£105,000 | 3 Bed HouseUpper William Street21, Upper William Street, Llanelli, SA15 1SL
Sold Mar 2023£90,000 | 3 Bed HouseUpper William Street20, Upper William Street, Llanelli, SA15 1SL
Sold Jul 2022£125,000 | 4 Bed HouseUpper William Street29, Upper William Street, Llanelli, SA15 1SL
Sold Apr 2022£43,000 | 4 Bed HouseUpper William Street26, Upper William Street, Llanelli, SA15 1SL
Sold Nov 2020£92,000 | 3 Bed HouseUpper William Street23, Upper William Street, Llanelli, SA15 1SL
Sold Nov 2018£92,500 | 3 Bed HouseUpper William Street30, Upper William Street, Llanelli, SA15 1SL
Sold Oct 2017£67,000 | 3 Bed HouseUpper William Street15, Upper William Street, Llanelli, SA15 1SL
Sold May 2016£57,000 | 3 Bed HouseUpper William Street17, Upper William Street, Llanelli, SA15 1SL
Sold Jun 2015£79,500 | 3 Bed HouseUpper William Street21, Upper William Street, Llanelli, SA15 1SL
Sold Dec 2014£77,000 | 3 Bed HouseUpper William Street20, Upper William Street, Llanelli, SA15 1SL
Sold Aug 2013£51,500 | 3 Bed HouseUpper William Street21, Upper William Street, Llanelli, SA15 1SL
Sold Mar 2013£49,000 | 3 Bed HouseUpper William Street20, Upper William Street, Llanelli, SA15 1SL
Sold Oct 2008£117,500 | 3 Bed HouseUpper William Street30, Upper William Street, Llanelli, SA15 1SL
Sold Feb 2007£90,000 | 3 Bed HouseUpper William Street25, Upper William Street, Llanelli, SA15 1SL
Sold Nov 2005£40,000 | 3 Bed HouseUpper William Street23, Upper William Street, Llanelli, SA15 1SL
Sold Nov 2005£80,000 | 3 Bed HouseUpper William Street25, Upper William Street, Llanelli, SA15 1SL
Sold Oct 2003£61,750 | 3 Bed HouseUpper William Street18, Upper William Street, Llanelli, SA15 1SL
Sold Oct 2003£61,750 | 3 Bed HouseUpper William Street18, Upper William Street, Llanelli, SA15 1SL
Sold Dec 2001£37,500 | 3 Bed HouseUpper William Street19, Upper William Street, Llanelli, SA15 1SL
Sold Nov 2000£29,500 | 3 Bed HouseUpper William Street22, Upper William Street, Llanelli, SA15 1SL
Sold Jul 2000£27,000 | 3 Bed HouseUpper William Street24, Upper William Street, Llanelli, SA15 1SL
Sold Feb 2000£25,000 | 3 Bed HouseUpper William Street14, Upper William Street, Llanelli, SA15 1SL
Sold Dec 1999£19,500 | 3 Bed HouseUpper William Street16, Upper William Street, Llanelli, SA15 1SL
Sold Oct 1998£35,000 | 4 Bed HouseUpper William Street28, Upper William Street, Llanelli, SA15 1SL
Top 3 Most Expensive Saleson Upper William Street, Llanelli, SA15
- Sold Jul 2022£125,000 | 4 Bed HouseUpper William Street29, Upper William Street, Llanelli, SA15 1SL
- Sold Oct 2008£117,500 | 3 Bed HouseUpper William Street30, Upper William Street, Llanelli, SA15 1SL
- Sold Mar 2023£105,000 | 3 Bed HouseUpper William Street21, Upper William Street, Llanelli, SA15 1SL
Nearby Streetsto Upper William Street, Llanelli, SA15
Upper William Street, Llanelli, SA15 is the 452nd largest and the 152nd most expensive street in the SA15 area.
- 63 mAls Street, Llanelli, SA1519 Addresses
- 75 mCollege Square, Llanelli, SA1523 Addresses
- 84 mStepney Place, Llanelli, SA1525 Addresses
- 97 mLawrence Terrace, Llanelli, SA156 Addresses
- 121 mEastgate, Llanelli, SA153 Addresses
- 122 mCwrt Y Wern, Llanelli, SA1532 Addresses
Postcodeson Upper William Street, Llanelli, SA15
There is 1 postcode on Upper William Street, Llanelli, SA15.
- House prices in SA15 1SL17 Addresses
Property Typesin Upper William Street
- 10 period houses built between 1800 and 1911
- 7 other addresses of unknown type
- period house (10)
- Unknown (7)
Energy Efficiencyof properties on Upper William Street
- Energy Performance Certificate (EPC) surveys conducted for 10 properties.
- The dominant rating is D.
- A (0)
- E (3)
- B (0)
- F (0)
- C (2)
- G (0)
- D (5)
- No EPC (7)
Schools Nearbyto Upper William Street, Llanelli, SA15
Public Transport Nearbyto Upper William Street, Llanelli, SA15
The closest station to Upper William Street, Llanelli, SA15 is Llanelli station which is 1.0 kilometres away.
- 1.0kmLlanelli
- 4.1kmBynea
- 5.4kmLlangennech
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