10 Darwin Close, Valley Road, St Albans, AL3 6LH

10 Darwin Close is a four-bedroom detached house in St Albans (AL3 6LH). It has a recorded floor area of 144 m² (around 1550 sq ft), construction records dating it to 1983-1990 and council tax band F. The property has underfloor heating on record, all of which lower running costs and tend to lift resale appeal. Records show the property has been extended at some point in its history. The latest certificate (April 2025) shows a C (score 72). The rating has held steady at C across 2 certificates since March 2009. Between certificates, window efficiency went from Average to Good and lighting went from Poor to Very Good; while roof efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 81).

At 144 m² the property is well over the postcode median (93 m² across 11 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). Across 1997–2015, sale prices on this property compounded at 7.4% per year. Today's modelled estimate of £906,000 sits 75.9% above the 2015 sale of £515,000. On a £-per-square-foot basis, the last sale (£332/sq ft) was about 22.1% below the postcode norm. Last changed hands 11 years ago, in September 2015. Across the public record there are 6 sales, relatively high churn for a single property. 3 planning records sit against the property, 1 approved, 1 refused. Past consents include a loft conversion, meaningful when judging how the property has evolved.