18, Goonbell, St Agnes, TR5 0PL

18 is a one-bedroom mid-terrace house in Goonbell, St. Agnes, St Agnes (TR5 0PL). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (December 2025) shows a D (score 57), a step below the typical UK home. When first surveyed in December 2011 the rating was F, the property has climbed 2 bands since. Between certificates, main heating went from Very Poor to Poor; while window efficiency dropped from Poor to Very Poor and lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 79). Main heating runs on dual fuel. This certificate was lodged in the last six months, so the rating reflects current condition.

At 41 m² it sits well below the postcode median (87 m² across 16 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. On the market in November 2016 and unlisted since — roughly 10 years. Across the public record there are 4 sales, relatively high churn for a single property. Across 1997–2016, sale prices on this property compounded at 9.2% per year. Today's modelled estimate of £237,000 is 24.7% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£431/sq ft) was about 55.5% above the typical sold price in the postcode.