15c, Higher Market Street, Penryn, TR10 8ED

15c is a one-bedroom end-of-terrace house in Penryn (TR10 8ED). It has a recorded floor area of 33 m² (around 355 sq ft) and construction records dating it to before 1900. The latest certificate (October 2018) shows an E (score 43), well below the UK norm with real room to improve. When first surveyed in January 2009 the rating was F, the property has climbed 1 band since. Between certificates, lighting went from Average to Good. The recommended improvements would lift it to C (score 76), a 2-band jump. Main heating runs on electricity. At 33 m² this is the 2nd smallest of 19 units on EPC record in the building, where floor areas span 31–124 m². The building's EPC ratings span E to C, with this unit at the bottom.

At 33 m² it sits well below the postcode median (70 m² across 18 EPCs), making it one of the more compact homes locally. Sold September 2020 for £123,000. Across the public record there are 4 sales, relatively high churn for a single property. Across 2000–2020, sale prices on this property compounded at 5.8% per year. On a £-per-square-foot basis, the last sale (£346/sq ft) was about 82.7% above the typical sold price in the postcode.