Trethowel Mill, Trethowel, St Austell, PL25 5RR
About Trethowel Mill
Trethowel Mill is a five-bedroom detached house in Trethowel, St. Austell, St Austell (PL25 5RR). It has a recorded floor area of 238 m² (around 2562 sq ft), construction records dating it to before 1900 and council tax band F. The latest certificate (January 2024) shows an E (score 53), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since March 2013. Between certificates, roof efficiency went from Very Poor to Average, window efficiency went from Poor to Good and lighting went from Poor to Very Good. The recommended improvements would lift it to B (score 90), a 3-band jump. Main heating runs on oil. Other recorded features include attached land beyond the plot. Period features are noted in the property record.
Today's modelled estimate of £721,000 sits 50.2% above the 2015 sale of £479,950. 3 planning records sit against the property, 1 approved, 2 refused. Past consents include an extension and a porch, meaningful when judging how the property has evolved. Last changed hands 11 years ago, in October 2015.
What this property has
Inside
- Bedrooms5
- Bathrooms3
- Dining roomYes
- StudyYes
Outside
- Private gardenYes
- GarageYes
- LandYes
Building
- Period featuresYes
Energy performance
Trethowel Mill's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Roof insulation improved
Floor insulation added or improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £1,220 · Includes VAT
Planning history
- May 2004
- Jun 2003PorchFullIn report
Proposed porch and outbuildings
- Council
- L16/14
Extension- Documents
- 8 docs on file
- Reference
- C2/03/00133
We flagged 1 thing worth checking at Trethowel Mill
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
Trethowel Mill valuation sits well clear of the typical sold price in this postcode.
£721,000
Modelled from EPC, postcode comparables.
£479,950
Recorded with HM Land Registry.
Sales timeline
30 October 2015Most recent
£479,950
Median price across the last 5 sales in PL25 5RR: £412,500 (2022–2010).
Nearby sales in PL25 5RR
The Old Stables, Trethowel, St Austell, PL25 5RR
Sold Dec 2022
£699,950Helygen House, Trethowel, St Austell, PL25 5RR
Sold Dec 2019
£110,000The Woodlands, Trethowel, St Austell, PL25 5RR
Sold Dec 2017
£552,500Aston House, Trethowel, St Austell, PL25 5RR
Sold May 2010
£368,000An Golow Chy, Trethowel, St Austell, PL25 5RR
Sold Oct 2007
£317,500
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Railway Terrace — bus stop.
Closest school
0.8 km
Cornwall College. 10 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
44.5dB

Night-time· 23:00 – 07:00
37.6dB







