23 Isabel Drive, Elsenham, Bishop's Stortford, CM22 6GU

23 Isabel Drive is a five-bedroom detached house in Bishop's Stortford (CM22 6GU). It has a recorded floor area of 17 m² (around 183 sq ft) and construction records dating it to 2012-2021. Tenure is freehold. At 17 m² this is the smallest unit on EPC record across the building (17–191 m²). The building's EPC ratings span C to B, with this unit at the bottom. On EPC score it ranks last in the building (76 versus a best of 89). The latest certificate (October 2025) shows a C (score 76), near the top of the C band. Earlier certificates rated it B (July 2018); the latest reading is one band lower. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Average.

Today's modelled estimate of £588,000 is 21.6% below the 2018 sale of £749,995, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£4,099/sq ft) was about 993% above the typical sold price in the postcode. At 17 m² it sits well below the postcode median (70 m² across 23 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. Most recent transfer: July 2018 at £749,995.