Energy efficiency in TR17 (Cornwall) sits at an average score of 54 out of 100, placing it below the national average. To put this in context, the national average sits at 67. The most common rating band is E, with 9.2% of homes rated A or B and 40.9% in the C or D bands. Meanwhile, 18.9% of homes sit in the F or G bands — the least efficient categories. In practical terms, an E rating signals significant energy waste. In practical terms, households here could be spending £400-600 more per year on energy than they need to.

Most of the housing stock here consists of houses. Around 58% of properties are owner-occupied , while 22% are privately rented and 20% are social housing. A significant share of homes here rely on electric heating, which tends to be more expensive per unit of energy than gas.

There is genuine room for improvement here. If every recommended upgrade were carried out, the average score could climb from 54 to 79 — a 25-point jump that would lift the typical rating to C. That is a substantial gain, suggesting many homes are missing basic efficiency measures. If you live in TR17 and want to reduce your energy bills, start with our guide to loft insulation — it is one of the most cost-effective upgrades you can make.