21a, Clarendon Road, Waltham Forest, London, E17 9AY

21a is a two-bedroom semi-detached house in Waltham Forest, London, London (E17 9AY). It has a recorded floor area of 62 m² (around 667 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (August 2020) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 78), a 2-band jump. At 62 m² this is the 13th smallest of 34 units on EPC record in the building, where floor areas span 27–190 m². The building's EPC ratings span F to B across 34 units on file. Period features are noted in the property record.

At 62 m² it sits well below the postcode median (91 m² across 36 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Today's modelled estimate of £439,000 is 19.6% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£550/sq ft) was about 83.8% above the typical sold price in the postcode. Sold June 2021 for £367,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.