Marien Court, Flat 4, 45 The Avenue, Waltham Forest, London, E4 9LB

Marien Court is a semi-detached house in Waltham Forest, London, London (E4 9LB). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1950-1966 and council tax band C. At 47 m² this is the 7th smallest of 11 units on EPC record in Marien Court, where floor areas span 45–81 m². The building's EPC ratings span E to B, with this unit at the bottom. On EPC score it ranks last in the building (50 versus a best of 83). The latest certificate (February 2023) shows an E (score 50), well below the UK norm with real room to improve. Earlier certificates rated it D (March 2018); the latest reading is one band lower. Between certificates, wall efficiency went from Poor to Average; while hot-water efficiency dropped from Average to Very Poor and lighting dropped from Very Good to Good. The recommended improvements would lift it to C (score 72), a 2-band jump. Main heating runs on electricity.

At 47 m² it sits well below the postcode median (78 m² across 32 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 72% of similar EPCs). On a £-per-square-foot basis, the last sale (£534/sq ft) was about 99.4% above the typical sold price in the postcode. Last sale on file: £270,000 in February 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.