1a, Randolph Gardens, London, NW6 5EH

1a is a semi-detached house in London (NW6 5EH). It has a recorded floor area of 136 m² (around 1464 sq ft) and construction records dating it to before 1900. At 136 m² this is the largest unit on EPC record across the building (62–136 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (47 versus a best of 72). The latest certificate (July 2016) shows an E (score 47), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 66).

At 136 m² the property is well over the postcode median (66 m² across 20 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. On a £-per-square-foot basis, the last sale (£915/sq ft) was about 113% above the typical sold price in the postcode. On the market in August 2017 and unlisted since — roughly 9 years.