Haydon Hill House, 4, Merry Hill Road, Bushey, WD23 1DU

Haydon Hill House is a three-bedroom mid-terrace house in Bushey (WD23 1DU). It has a recorded floor area of 189 m² (around 2034 sq ft), construction records dating it to before 1900 and council tax band F. At 189 m² this is the 8th smallest of 10 units on EPC record in Haydon Hill House, where floor areas span 80–261 m². The building's EPC ratings span G to C, with this unit at the top. On EPC score it ranks first in the building (75 versus a worst of 14). The latest certificate (February 2020) shows a C (score 75), near the top of the C band. When first surveyed in October 2008 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Poor and lighting went from Average to Very Good. The recommended improvements would push it to B (score 81).

Sale prices here have outpaced England HPI: 7% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£417/sq ft) was about 31.8% above the typical sold price in the postcode. At 189 m² the property is well over the postcode median (126 m² across 9 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. 7 planning records sit against the property, 4 approved, 2 refused. Past consents include a basement excavation, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Sold September 2020 for £847,500. Across the public record there are 4 sales, relatively high churn for a single property.