12a, Alwyne Court, Woking, GU21 4ND

12a is a one-bedroom semi-detached house in Woking (GU21 4ND). It has a recorded floor area of 54 m² (around 581 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (August 2018) shows a D (score 57), a step below the typical UK home. When first surveyed in January 2011 the rating was F, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Very Poor to Average, lighting went from Good to Very Good and main heating went from Very Poor to Average; while wall efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 77). Main heating runs on electricity. At 54 m² this is the 2nd smallest of 16 units on EPC record in the building, where floor areas span 53–75 m². The building's EPC ratings span E to C across 16 units on file. The home occupies a cul-de-sac position.

Untraded for 15 years, with the last transfer in April 2011. Across 1996–2011, sale prices on this property compounded at 8.5% per year. Today's modelled estimate of £231,000 is 34.3% above the 2011 sale price. On a £-per-square-foot basis, the last sale (£296/sq ft) was about 47.8% above the typical sold price in the postcode. At 54 m² it's 18.2% smaller than the typical home in the postcode (66 m² median across 15 EPCs).