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 (101 m² across 12 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). Most recent transfer was December 2025 at £900,000 — fresh data. 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. Across 1997–2025, sale prices on this property compounded at 6.7% per year. Today's modelled estimate of £1,002,000 is 11.3% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£581/sq ft) was about 65% above the typical sold price in the postcode.