57 Trowley Hill Road, Flamstead, St Albans, AL3 8DL

57 Trowley Hill Road is a four-bedroom detached house in Flamstead, St. Albans, St Albans (AL3 8DL). It has a recorded floor area of 180 m² (around 1938 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (October 2023) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2013. Between certificates, roof efficiency went from Average to Very Good and lighting went from Poor to Very Good; while wall efficiency dropped from Good to Average and window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 82), a 2-band jump. Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.

Held since October 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 180 m² the property is well over the postcode median (76 m² across 13 EPCs), placing it in the larger end of the local stock. Across 1997–2007, sale prices on this property compounded at 12.9% per year. Today's modelled estimate of £810,000 sits 50% above the 2007 sale of £540,000. One planning record on file: an extension approved in 2006. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved.