Trem Berwyn, Derwen, Corwen, LL21 9SG
About Trem Berwyn
Trem Berwyn is a detached house in Derwen, Corwen, Corwen (LL21 9SG). It has a recorded floor area of 123 m² (around 1324 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (March 2017) shows a G (score 1), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 69), a 4-band jump. Main heating runs on wood logs.
2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Today's modelled estimate of £255,000 is 45.7% above the 2021 sale price. Last sale on file: £175,000 in March 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Trem Berwyn
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
Energy performance
Trem Berwyn's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
- Apr 2022ConditionsIn report
Manylion deunyddiau allanol, osgoi ystlumod ac adar sy'n nythu, goleuadau allanol / mewnol a chynllun tirlunio a gyflwynwyd mewn perthynas ag amodau rhifau 3, 6, 7, 8, & 9 o'r cais cynllunio rhif 12/2021/1207/PF / Details of external materials, bat avoidance and nesting birds, external / internal lighting and landscaping scheme submitted in relation with conditions numbers 3, 6, 7, 8, & 9 of planning application number 12/2021/1207/PF
- Documents
- 12 docs on file
- Reference
- 12/2022/0207
- Feb 2022ExtensionFullIn report
Codi estyniad deulawr a llawr sengl ac addasiadau i annedd, ffurfio patio, tirlunio a gwaith cysylltiedig / Erection of a two storey and a single storey extension and alterations to dwelling, formation of patio, landscaping and associated works
- Documents
- 16 docs on file
- Reference
- 12/2021/1207
What's in Trem Berwyn, Derwen, Corwen, LL21 9SG's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£255,000
Modelled from EPC, postcode comparables.
£175,000
Recorded with HM Land Registry.
Sales timeline
5 March 2021Most recent
£175,000
Median price across the last 5 sales in LL21 9SG: £138,000 (2022–1999).
Everything we know about Trem Berwyn, 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?

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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
St Mary's Church — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.