Flat 5, 17 Wales Avenue, Carshalton, SM5 3QN

Flat 5 is a one-bedroom mid-terrace house in Carshalton (SM5 3QN). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (December 2023) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in December 2014 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Good and lighting went from Good to Very Good. At 48 m² this is the 5th smallest of 6 units on EPC record in the building, where floor areas span 25–53 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (60 versus a best of 77).

At 48 m² it sits well below the postcode median (71 m² across 24 EPCs), making it one of the more compact homes locally. Last changed hands 11 years ago, in July 2015. Across the public record there are 5 sales, relatively high churn for a single property. Across 1997–2015, sale prices on this property compounded at 7.8% per year. Today's modelled estimate of £279,000 is 14.3% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£472/sq ft) was about 43.3% above the typical sold price in the postcode.