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Get started11 Dillwyn Street is a mid-terrace house in Llanelli (SA15 1BT). It has a recorded floor area of 66 m² (around 710 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (September 2025) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in February 2012 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Average and lighting went from Average to Very Good. The recommended improvements would push it to C (score 78).
Sale prices here have outpaced England HPI: 1.5% per year against 0% for the wider region. Today's modelled estimate of £117,000 sits 112.7% above the 2015 sale of £55,000. On a £-per-square-foot basis, the last sale (£77/sq ft) was about 17.6% above the typical sold price in the postcode. 10 years since the last transfer (December 2015). At 66 m² it's 15.4% smaller than the typical home in the postcode (78 m² median across 47 EPCs).
11 Dillwyn Street's sale-price growth has lagged the wider UK trajectory across its history on file.
£117,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.5% per year over 12 years.
£55,000
Growth on file: 1.5% per year over 12 years.
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Detailed AI analysis
11 Dillwyn Street outperforms the street on co₂ emissions by a wide margin.
Price per m²
£833
Street avg £855
Floor Area
66 m²
Street avg 86 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Talbot Street — bus stop.
Changes detected from historical EPC data
Roof insulation improved
Low energy lighting percentage decreased
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
22 December 2015Most recent
£55,000
-37.5%over 8 years18 May 2007
£88,000
+91.3%over 3 years19 September 2003
£46,000
Median price across the last 5 sales in SA15 1BT: £95,000 (2025–2022).
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CO₂ Emissions
2.4 t/year
Street avg 4.2 t/year