113a, Flat 4, Lower Marsh, Lambeth, London, SE1 7AE

113a is a mid-terrace house in Lambeth, London, London (SE1 7AE). It has a recorded floor area of 82 m² (around 883 sq ft) and construction records dating it to before 1900. At 82 m² this is the largest unit on EPC record across 113a (45–82 m²). The building's EPC ratings span D to B, with this unit at the bottom. On EPC score it ranks last in the building (57 versus a best of 87). The latest certificate (September 2019) shows a D (score 57), a step below the typical UK home. Earlier certificates rated it C (July 2016); the latest reading is one band lower. Between certificates, wall efficiency dropped from Very Good to Average and roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to C (score 71).

Held since July 2001 — that's 25 years off the open market, well above the local norm. At 82 m² the property is well over the postcode median (55 m² across 18 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 72% of similar EPCs). Today's modelled estimate of £663,000 sits 124.7% above the 2001 sale of £295,000. On a £-per-square-foot basis, the last sale (£334/sq ft) was about 29.3% below the postcode norm.