12a, Clos Plas Isaf, Llangennech, Llanelli, SA14 8RX
About 12a
12a is a semi-detached house in Llangennech, Llanelli, Llanelli (SA14 8RX). It has a recorded floor area of 59 m² (around 635 sq ft) and construction records dating it to 1991-1995. The latest certificate (August 2020) shows a D (score 66), on the cusp of jumping into the C band. Earlier certificates rated it C (February 2010); the latest reading is one band lower. Between certificates, lighting went from Poor to Very Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
At 59 m² it's 21.3% smaller than the typical home in the postcode (75 m² median across 13 EPCs).
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
Planning history
12a has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 1 thing worth checking at 12a
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
12a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£160,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in SA14 8RX: £135,000 (2024–2020).
Nearby sales in SA14 8RX
3 Clos Plas Isaf, Llangennech, Llanelli, SA14 8RX
Sold Aug 2024
£170,0001 Clos Plas Isaf, Llangennech, Llanelli, SA14 8RX
Sold Jun 2023
£260,00014 Clos Plas Isaf, Llangennech, Llanelli, SA14 8RX
Sold Sept 2021
£122,0004 Clos Plas Isaf, Llangennech, Llanelli, SA14 8RX
Sold Mar 2020
£90,0006 Clos Plas Isaf, Llangennech, Llanelli, SA14 8RX
Sold Dec 2013
£108,000
Versus other Clos Plas Isaf homes
12a is notably below the street on habitable rooms.
EPC Rating
66 (D)
Street avg 66 (D)
Floor Area
59 m²
Street avg 76 m²
CO₂ Emissions
2.5 t/year
Street avg 3.1 t/year
Habitable Rooms
3 rooms
Street avg 4 rooms
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Heol Plas Isaf — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.







