Flat 8, 4 Lyall Street, London, SW1X 8DW

Flat 8 is a three-bedroom mid-terrace house in London (SW1X 8DW). It has a recorded floor area of 209 m² (around 2250 sq ft), construction records dating it to before 1900 and council tax band G. At 209 m² this is the largest unit on EPC record across the building (39–209 m²). The building's EPC ratings span E to C, with this unit at the top. Other recorded features include a balcony and notable views. The latest certificate (January 2019) shows a C (score 70). The rating has held steady at C across 2 certificates since November 2008. Between certificates, wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Poor.

It hasn't traded since May 2002, a hold of 24 years that's notably long for the area. Sale prices here have outpaced London HPI: 10.6% per year against 0% for the wider region. Today's modelled estimate of £2,300,000 sits 413.4% above the 2002 sale of £448,000. On a £-per-square-foot basis, the last sale (£199/sq ft) was about 82.9% below the postcode norm. At 209 m² the property is well over the postcode median (111 m² across 10 EPCs), placing it in the larger end of the local stock. 10 planning records sit against the property, 7 approved, 3 refused. Past consents include new windows and an extension, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations.