11 Artesian Grove, Barnet, EN5 5HU

11 Artesian Grove is a two-bedroom detached house in Barnet (EN5 5HU). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 1983-1990 and council tax band D. At 53 m² this is the 12th smallest of 33 units on EPC record in the building, where floor areas span 50–103 m². The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (February 2020) shows a D (score 66), on the cusp of jumping into the C band. Earlier certificates rated it C (September 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Good and main heating went from Poor to Average; while roof efficiency dropped from Good to Average and hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 79). Main heating runs on electricity.

Untraded for 15 years, with the last transfer in May 2011. Across the public record there are 5 sales, relatively high churn for a single property. Across 1996–2011, sale prices on this property compounded at 7.2% per year. Today's modelled estimate of £313,000 sits 58.9% above the 2011 sale of £197,000. On a £-per-square-foot basis, the last sale (£345/sq ft) was about 38.1% above the typical sold price in the postcode.