1 Clos Treventy, Cefneithin, Llanelli, SA14 7DH
About 1 Clos Treventy
1 Clos Treventy is a four-bedroom detached house in Cefneithin, Llanelli, Llanelli (SA14 7DH). It has a recorded floor area of 205 m² (around 2207 sq ft), construction records dating it to 2003-2006 and council tax band G. The latest certificate (November 2018) shows a C (score 70). The rating has held steady at C across 2 certificates since October 2008. Between certificates, roof efficiency dropped from Very Good to Good. Main heating runs on oil. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.
Across 2010–2019, sale prices on this property compounded at 1.4% per year. Today's modelled estimate of £423,000 is 49.7% above the 2019 sale price. Last sale on file: £282,500 in April 2019.
What this property has
Inside
- Bedrooms4
- Dining roomYes
- EnsuiteYes
Building
- Heating systemOil
- Previously extendedYes
- Extension potentialPossible
Energy performance
1 Clos Treventy's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Planning history
1 Clos Treventy has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at 1 Clos Treventy
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
1 Clos Treventy saw 3 transfers in just over a decade — high turnover for the postcode.
£423,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.4% per year over 9 years.
£282,500
Growth on file: 1.4% per year over 9 years.
Sales timeline
30 April 2019Most recent
£282,500
+14.4%over 4 years26 June 2014
£247,000
-0.8%over 4 years17 February 2010
£249,000
Median price across the last 5 sales in SA14 7DH: £279,580 (2025–2018).
Nearby sales in SA14 7DH
8 Clos Treventy, Cefneithin, Llanelli, SA14 7DH
Sold Feb 2025
£428,00014 Clos Treventy, Cefneithin, Llanelli, SA14 7DH
Sold Jun 2023
£259,9504 Clos Treventy, Cefneithin, Llanelli, SA14 7DH
Sold Dec 2021
£335,00011 Clos Treventy, Cefneithin, Llanelli, SA14 7DH
Sold Dec 2018
£279,5809 Clos Treventy, Cefneithin, Llanelli, SA14 7DH
Sold Aug 2018
£275,000
Versus other Clos Treventy homes
On price per m², 1 Clos Treventy runs well behind the street norm.
Price per m²
£1,378
Street avg £1,773
Floor Area
205 m²
Street avg 174 m²
Habitable Rooms
7 rooms
Street avg 8 rooms
CO₂ Emissions
6.1 t/year
Street avg 5.3 t/year
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Heol Treventy — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.







