Flat 3, 22 Leinster Gardens, London, W2 3AN

Flat 3 is a semi-detached house in London (W2 3AN). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 1900-1929 and council tax band G. At 73 m² this is the smallest unit on EPC record across the building (73–256 m²). The building's EPC ratings span E to B across 7 units on file. The latest certificate (October 2021) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in March 2010 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average and main heating dropped from Good to Average. The recommended improvements would push it to C (score 75). Main heating runs on electricity.

Untraded for 15 years, with the last transfer in December 2010. Today's modelled estimate of £1,265,000 is 27.1% above the 2010 sale price. On a £-per-square-foot basis, the last sale (£1,266/sq ft) was about 50.2% above the typical sold price in the postcode.