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Get startedChy An Gwyn is a three-bedroom detached house in Penryn (TR10 8DG). It has a recorded floor area of 171 m² (around 1841 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (November 2015) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2013); the latest reading is one band lower. Between certificates, roof efficiency dropped from Good to Average and hot-water efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 82), a 3-band jump. Main heating runs on oil. The latest certificate is from November 2015, so improvements made since then won't be reflected.
At 171 m² the property is well over the postcode median (119 m² across 4 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2025. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. Last sold in July 2015, so it's been off the market for around 11 years. Today's modelled estimate of £481,000 is 48% above the 2015 sale price.
Chy An Gwyn's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 24 Nov 2025
Chy An Gwyn has an approved rear extension on the planning record.
Chy An Gwyn valuation sits well clear of the typical sold price in this postcode.
£481,000
Modelled from EPC, postcode comparables.
£325,000
Recorded with HM Land Registry.
On price per m², Chy An Gwyn runs well behind the street norm.
Price per m²
£1,901
Street avg £2,706
Floor Area
171 m²
Street avg 184 m²
Habitable Rooms
6 rooms
Street avg 7 rooms
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Browns Hill — bus stop.

Daytime· 07:00 – 23:00
49.0dB

Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Windows upgraded, improving insulation
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Rear of property
Install a conservatory to the rear of the property
8 July 2015Most recent
£325,000
Median price across the last 5 sales in TR10 8DG: £395,000 (2018–2010).
CO₂ Emissions
9.4 t/year
Street avg 7.9 t/year
TR10 8RJ
Closest school
0.6 km
Penryn Primary Academy. 9 schools nearby.
Night-time· 23:00 – 07:00
38.8dB
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