3a, Orchard Terrace, Great Cambridge Road, Enfield, EN1 1EL

3a is a mid-terrace house in Enfield (EN1 1EL). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1930-1949 and council tax band C. At 47 m² this is the smallest unit on EPC record across the building (47–128 m²). The building's EPC ratings span F to C across 17 units on file. The latest certificate (February 2022) shows a D (score 63), on the cusp of jumping into the C band. Earlier certificates rated it C (April 2010); the latest reading is one band lower. Between certificates, roof efficiency dropped from Average to Very Poor.

It hasn't traded since April 1998, a hold of 28 years that's notably long for the area. Across 1997–1998, sale prices on this property compounded at -4.8% per year. Today's modelled estimate of £292,000 sits 269.6% above the 1998 sale of £79,000. On a £-per-square-foot basis, the last sale (£156/sq ft) was about 22.9% below the postcode norm. At 47 m² it sits well below the postcode median (100 m² across 16 EPCs), making it one of the more compact homes locally.