20 New Road, Welwyn, AL6 0AG

20 New Road is a six-bedroom detached house in Welwyn (AL6 0AG). It has a recorded floor area of 259 m² (around 2788 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (March 2020) shows a D (score 61), on the cusp of jumping into the C band. When first surveyed in September 2010 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Average, window efficiency went from Very Poor to Good and hot-water efficiency went from Poor to Good. The recommended improvements would push it to C (score 80).

One planning record on file: an extension approved in 2018. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). Across 2011–2020, sale prices on this property compounded at 4.5% per year. Today's modelled estimate of £1,502,000 is 18.1% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£456/sq ft) was about 48.5% above the typical sold price in the postcode. Most recent transfer: September 2020 at £1,271,875.