2a, Argyle Avenue, Bristol, BS5 6PG

2a is an end-of-terrace house in Bristol (BS5 6PG). It has a recorded floor area of 21 m² (around 226 sq ft), construction records dating it to before 1900 and council tax band A. At 21 m² this is the smallest unit on EPC record across the building (21–114 m²). The building's EPC ratings span E to D, with this unit at the top. The latest certificate (March 2016) shows a D (score 59), a step below the typical UK home. When first surveyed in March 2016 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency dropped from Average to Very Poor and main heating dropped from Average to Very Poor. The recommended improvements would push it to C (score 75). Main heating runs on electricity. The latest certificate is from March 2016, so improvements made since then won't be reflected.

Held since February 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 £170,000 sits 88.9% above the 2007 sale of £90,000. On a £-per-square-foot basis, the last sale (£398/sq ft) was about 173.5% above the typical sold price in the postcode. At 21 m² it sits well below the postcode median (91 m² across 14 EPCs), making it one of the more compact homes locally.