506b, Hertford Road, Enfield, EN3 5SS

506b is a mid-terrace house in Enfield (EN3 5SS). It has a recorded floor area of 36 m² (around 388 sq ft) and construction records dating it to 1930-1949. The latest certificate (July 2020) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in May 2018 the rating was G, the property has climbed 3 bands since. Between certificates, roof efficiency went from Very Poor to Poor, hot-water efficiency went from Very Poor to Average and lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 80). Main heating runs on electricity. At 36 m² this is the 10th smallest of 22 units on EPC record in the building, where floor areas span 16–93 m². The building's EPC ratings span E to C across 22 units on file.

Untraded for 23 years, with the last transfer in October 2003. Across 2002–2003, sale prices on this property compounded at 19.1% per year. Today's modelled estimate of £221,000 sits 57.9% above the 2003 sale of £140,000. On a £-per-square-foot basis, the last sale (£361/sq ft) was about 112.9% above the typical sold price in the postcode. At 36 m² it sits well below the postcode median (70 m² across 21 EPCs), making it one of the more compact homes locally. One historical planning record sits against the property in 2026.