23 Heddon Court, Cockfosters Road, Barnet, EN4 0DE

23 Heddon Court is a detached house in Barnet (EN4 0DE). It has a recorded floor area of 68 m² (around 727 sq ft), construction records dating it to 1930-1949 and council tax band C. At 68 m² this is the 11th smallest of 26 units on EPC record in the building, where floor areas span 34–107 m². The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (77 versus a worst of 42). The latest certificate (November 2008) shows a C (score 77), near the top of the C band. The latest certificate is from November 2008, so improvements made since then won't be reflected.

Held since March 2005 — that's 21 years off the open market, well above the local norm. Across the public record there are 4 sales, relatively high churn for a single property. Across 1998–2005, sale prices on this property compounded at 14.4% per year. Today's modelled estimate of £366,000 sits 80.7% above the 2005 sale of £202,500. On a £-per-square-foot basis, the last sale (£278/sq ft) was about 19.6% above the typical sold price in the postcode.