217a, High Road, Loughton, IG10 1BB

217a is an end-of-terrace house in Loughton (IG10 1BB). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (July 2016) shows a D (score 57), a step below the typical UK home. When first surveyed in April 2013 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Average and lighting went from Very Poor to Good; while wall efficiency dropped from Poor to Very Poor and main heating dropped from Average to Poor. The recommended improvements would push it to C (score 75). Main heating runs on electricity. At 45 m² this is the 3rd smallest of 14 units on EPC record in the building, where floor areas span 33–89 m². The building's EPC ratings span E to B across 14 units on file.

Across 1999–2015, sale prices on this property compounded at 9.6% per year. Today's modelled estimate of £233,000 is 15.3% below the 2015 sale of £275,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£568/sq ft) was about 22.2% above the typical sold price in the postcode. At 45 m² it sits well below the postcode median (70 m² across 13 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. On the market in December 2015 and unlisted since — roughly 10 years.