13a, Muschamp Road, Southwark, London, SE15 4EG

13a is a one-bedroom detached house in Southwark, London, London (SE15 4EG). It has a recorded floor area of 42 m² (around 452 sq ft) and construction records dating it to before 1900. At 42 m² this is the smallest unit on EPC record across the building (42–185 m²). The building's EPC ratings span E to D, with this unit at the top. The latest certificate (February 2020) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 4 certificates since May 2010. Between certificates, wall efficiency went from Very Poor to Poor and window efficiency went from Very Poor to Good; while lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 74).

Today's modelled estimate of £356,000 sits 122.5% above the 2011 sale of £160,000. At 42 m² it sits well below the postcode median (112 m² across 21 EPCs), making it one of the more compact homes locally. 15 years since the last transfer (November 2011).