21 Clos Y Deri, Dafen, Llanelli, SA14 8QZ
About 21 Clos Y Deri
21 Clos Y Deri is a mid-terrace house in Dafen, Llanelli, Llanelli (SA14 8QZ). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1991-1995 and council tax band B. The latest certificate (January 2024) shows a C (score 69), just inside the C band. The rating has held steady at C across 3 certificates since October 2010. Between certificates, roof efficiency went from Average to Good and lighting went from Good to Very Good. The recommended improvements would push it to B (score 89).
Held since December 2005 — that's 21 years off the open market, well above the local norm. Across 1997–2005, sale prices on this property compounded at 9.6% per year. Today's modelled estimate of £139,000 sits 73.8% above the 2005 sale of £80,000. On a £-per-square-foot basis, the last sale (£133/sq ft) was about 61.4% above the typical sold price in the postcode.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
21 Clos Y Deri has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 1 thing worth checking at 21 Clos Y Deri
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
Sale price has at least doubled since 1997.
£139,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.6% per year over 8 years.
£80,000
Growth on file: 9.6% per year over 8 years.
Sales timeline
2 December 2005Most recent
£80,000
+86.3%over 3 years11 September 2002
£42,950
+16.1%over 5 years17 July 1997
£36,995
Median price across the last 5 sales in SA14 8QZ: £140,000 (2024–2023).
Nearby sales in SA14 8QZ
19 Clos Y Deri, Dafen, Llanelli, SA14 8QZ
Sold Nov 2024
£180,00033 Clos Y Deri, Dafen, Llanelli, SA14 8QZ
Sold Jun 2024
£140,00028 Clos Y Deri, Dafen, Llanelli, SA14 8QZ
Sold Oct 2023
£147,50026 Clos Y Deri, Dafen, Llanelli, SA14 8QZ
Sold Oct 2023
£120,00041 Clos Y Deri, Dafen, Llanelli, SA14 8QZ
Sold Jan 2023
£125,000
Versus other Clos Y Deri homes
Years Held for 21 Clos Y Deri runs comfortably ahead of the street norm.
Price per m²
£1,429
Street avg £1,664
Floor Area
56 m²
Street avg 64 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
2.3 t/year
Street avg 2.6 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Heol Bryncelyn — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.







