Flat 1, 3 Leinster Square, London, W2 4PL

Flat 1 is a one-bedroom mid-terrace house in London (W2 4PL). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to before 1900 and council tax band E. At 58 m² this is the largest unit on EPC record across the building (47–58 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (June 2023) shows a C (score 70). When first surveyed in April 2010 the rating was E, the property has climbed 2 bands since. Between certificates, lighting went from Very Poor to Very Good and main heating went from Average to Good; while window efficiency dropped from Poor to Very Poor.

Untraded for 25 years, with the last transfer in October 2001. Today's modelled estimate of £723,000 sits 155.9% above the 2001 sale of £282,510. On a £-per-square-foot basis, the last sale (£453/sq ft) was about 44.3% below the postcode norm. 5 planning records sit against the property, 3 approved, 2 refused. Past consents include an extension and a basement excavation, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations.