43a, Greenbank Road, Birkenhead, CH42 7JT

43a is a semi-detached house in Birkenhead (CH42 7JT). It has a recorded floor area of 55 m² (around 592 sq ft) and construction records dating it to before 1900. At 55 m² this is the 10th smallest of 32 units on EPC record in the building, where floor areas span 37–257 m². The building's EPC ratings span F to C, with this unit at the top. The latest certificate (August 2017) shows a C (score 69), just inside the C band. The rating has held steady at C across 2 certificates since November 2012. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Poor to Very Good.

At 55 m² it's 29.5% smaller than the typical home in the postcode (78 m² median across 31 EPCs). Its energy rating outperforms most of the postcode (better than 81% of similar EPCs). Today's modelled estimate of £166,000 is 10.7% above the 2012 sale price. On a £-per-square-foot basis, the last sale (£253/sq ft) was about 179.2% above the typical sold price in the postcode. Last changed hands 14 years ago, in July 2012.