Sarnat Gwyn, Derwen, Corwen, LL21 9SH
About Sarnat Gwyn
Sarnat Gwyn is a detached house in Derwen, Corwen, Corwen (LL21 9SH). It has a recorded floor area of 122 m² (around 1313 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (October 2013) shows an F (score 24), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 67), a 2-band jump. Main heating runs on dual fuel. The latest certificate is from October 2013, so improvements made since then won't be reflected.
At 122 m² it sits well below the postcode median (198 m² across 4 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1997–2021, sale prices on this property compounded at 7.6% per year. Today's modelled estimate of £497,000 is 24.9% above the 2021 sale price. Most recent transfer: February 2021 at £398,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Sarnat Gwyn
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
Sarnat Gwyn sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 04 Oct 2023
EPC Rating
Planning history
Sarnat Gwyn has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
Price for Sarnat Gwyn has grown more than fourfold since the 1997 starting point.
£497,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.6% per year over 24 years.
£398,000
Growth on file: 7.6% per year over 24 years.
Sales timeline
10 February 2021Most recent
£398,000
+6.1%over 2 years23 January 2019
£375,000
+424.5%over 21 years24 July 1997
£71,500
Median price across the last 5 sales in LL21 9SH: £425,000 (2024–2004).
Nearby sales in LL21 9SH
Everything we know about Sarnat Gwyn, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
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Versus the street
On epc rating, Sarnat Gwyn runs well behind the street norm.
EPC Rating
24 (F)
Street avg 64 (D)
Floor Area
122 m²
Street avg 210 m²
CO₂ Emissions
12.0 t/year
Street avg 8.8 t/year
Habitable Rooms
7 rooms
Street avg 7 rooms
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.9 km
Is Awel — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.