3 Gwern Gwalia, Glanrafon, Corwen, LL21 0HG
About 3 Gwern Gwalia
3 Gwern Gwalia is a three-bedroom semi-detached house in Glanrafon, Corwen, Corwen (LL21 0HG). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (June 2017) shows an F (score 35), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since November 2013. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Very Poor to Very Good and lighting went from Average to Very Good; while hot-water efficiency dropped from Poor to Very Poor and main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 80), a 3-band jump. Main heating runs on dual fuel. Other recorded features include notable views.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £161,000 sits 101.3% above the 2020 sale of £80,000. Most recent transfer: January 2020 at £80,000.
Know exactly what you're buying at 3 Gwern Gwalia
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- CloakroomYes
Outside
- Private gardenFront and rear
- ParkingYes
- Notable viewsYes
Building
- RefurbishedYes
Energy performance
3 Gwern Gwalia sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
3 Gwern Gwalia has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£161,000
Modelled from EPC, postcode comparables.
£80,000
Recorded with HM Land Registry.
Sales timeline
31 January 2020Most recent
£80,000
Median price across the last 3 sales in LL21 0HG: £128,500 (2024–2003).
Everything we know about 3 Gwern Gwalia, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Gwern Gwalia homes
On epc rating, 3 Gwern Gwalia runs well behind the street norm.
EPC Rating
35 (F)
Street avg 58 (D)
Floor Area
82 m²
Street avg 90 m²
CO₂ Emissions
7.2 t/year
Street avg 5.4 t/year
Habitable Rooms
5 rooms
Street avg 5 rooms
Similar properties nearby
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LL21 0HG
1 Cae Coed
LL21 0DA
1 Bro Helyg, Llandrillo
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1 Erw Wern, Berwyn Street, Llandrillo
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1 Ceidiog Cottages, Berwyn Street, Llandrillo
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
St James` Church — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.