23a, Abbey Grove, Greenwich, London, SE2 9EU

23a is a one-bedroom semi-detached house in Greenwich, London, London (SE2 9EU). It has a recorded floor area of 47 m² (around 506 sq ft) and construction records dating it to 1900-1929. The latest certificate (June 2022) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 4 certificates since March 2009. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 76). At 47 m² this is the 2nd smallest of 13 units on EPC record in the building, where floor areas span 46–114 m². The building's EPC ratings span E to C across 13 units on file.

It hasn't traded since May 1999, a hold of 27 years that's notably long for the area. Across 1996–1999, sale prices on this property compounded at 9.7% per year. Today's modelled estimate of £250,000 sits 235.6% above the 1999 sale of £74,500. On a £-per-square-foot basis, the last sale (£147/sq ft) was about 27.9% below the postcode norm. At 47 m² it sits well below the postcode median (96 m² across 15 EPCs), making it one of the more compact homes locally. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.