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Get started29 Derwent Street is a three-bedroom end-of-terrace house in Llanelli (SA15 3ES). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (May 2020) shows an E (score 48), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since October 2010. Between certificates, roof efficiency went from Very Poor to Good, lighting went from Average to Very Good and main heating went from Average to Good; while wall efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 83), a 3-band jump.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Sale prices here have lagged England HPI: -1.8% per year against 0% for the wider region. Today's modelled estimate of £149,000 sits 51.3% above the 2021 sale of £98,500. Most recent transfer: February 2021 at £98,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
29 Derwent Street sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
29 Derwent Street's sale-price growth has lagged the wider UK trajectory across its history on file.
£149,000
Modelled from EPC, postcode comparables and a sale-price growth of -1.8% per year over 10 years.
£98,500
Growth on file: -1.8% per year over 10 years.
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Detailed AI analysis
On epc rating, 29 Derwent Street runs well behind the street norm.
EPC Rating
48 (E)
Street avg 66 (D)
Floor Area
93 m²
Street avg 102 m²
CO₂ Emissions
6.7 t/year
Street avg 3.9 t/year
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Lotus House — bus stop.
Changes detected from historical EPC data
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.
15 February 2021Most recent
£98,500
-17.2%over 10 years22 October 2010
£119,000
Median price across the last 5 sales in SA15 3ES: £80,000 (2020–2003).
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Habitable Rooms
5 rooms
Street avg 5 rooms
SA15 3RU