Our Data Sources
Trethewey House, Penzance has no records in the the Land Registry and a single entry in the EPC database dated June 2013.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For Trethewey House, Penzance, we estimate a market value of £615,898 and a rental value of £2,209 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £545,510 and £1,957 per month respectively.
Plot Size
HM Land Registry records the plot of land for Trethewey House, Penzance as measuring 11,404 m2.
That makes it the 2nd largest plot in the postcode, where 4 of the 14 other houses have recorded plot data.
Energy Efficiency
Trethewey House, Penzance has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 11 Jun 2013.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, oil.
Similar Properties Sold Nearby
Over the past 2 years 45 properties similar to Trethewey House, Penzance have sold within a radius of 3.3 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 12th December 2025, was Tara, Germoe Lane, Penzance, TR20 9QY, a freehold house which sold for £490,000.
Read more about house prices in TR20.
- Sold Dec 2025£490,000 | 5 Bed HouseTara, Germoe Lane, Penzance, TR20 9QYTara, Germoe Lane, Penzance, TR20 9QY
- Sold Feb 2019£420,000 | 4 Bed HouseLittle Brook, Penzance, TR20 9QXLittle Brook, Penzance, TR20 9QX
- Sold May 2016£375,000 | 5 Bed HouseHawthorn Cottage, Penzance, TR20 9QXHawthorn Cottage, Penzance, TR20 9QX
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 78 addresses on Germoe, Penzance, TR20, Trethewey House, Penzance comes out as the 12th largest and the 16th most expensive in our analysis of the public data.
It is also £191k more expensive than the average property across the TR20 district.
More reading links
Schools Nearby
- Germoe Community Primary School300 m away
- Godolphin Primary School2.7 km away
- Breage CofE Primary School3.2 km away
- Helston Community College7.4 km away
- Hayle Academy8.1 km away
- Humphry Davy School11.8 km away
More reading links
Public Transport Nearby
- St Erth|7.8 km away
- Hayle|8.4 km away
- Lelant Saltings|8.5 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












