3b, Finland Road, London, SE4 2JE

3b is a mid-terrace house in London (SE4 2JE). 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. At 62 m² this is the 3rd smallest of 4 units on EPC record in the building, where floor areas span 53–63 m². The building's EPC ratings span E to D, with this unit at the top. On EPC score it ranks first in the building (68 versus a worst of 47). The latest certificate (October 2019) shows a D (score 68), on the cusp of jumping into the C band. Earlier certificates rated it C (January 2009); the latest reading is one band lower. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Average to Good; while window efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to C (score 77).

Held since November 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £519,000 sits 154.4% above the 2007 sale of £204,000.