Stonehills House, Flat 7, Stonehills, Welwyn Garden City, AL8 6DL

Stonehills House is an end-of-terrace house in Welwyn Garden City (AL8 6DL). It has a recorded floor area of 30 m² (around 323 sq ft) and construction records dating it to 1900-1929. At 30 m² this is the 4th smallest of 35 units on EPC record in Stonehills House, where floor areas span 23–75 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (April 2017) shows a C (score 76), near the top of the C band. When first surveyed in September 2016 the rating was F, the property has climbed 3 bands since. Between certificates, hot-water efficiency went from Very Poor to Average and main heating went from Very Poor to Average; while wall efficiency dropped from Very Good to Poor and window efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 85). Main heating runs on electricity.

At 30 m² it sits well below the postcode median (54 m² across 34 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 85% of similar EPCs). Across 2017–2021, sale prices on this property compounded at 3.9% per year. On a £-per-square-foot basis, the last sale (£542/sq ft) was about 29.4% above the typical sold price in the postcode. Sold March 2021 for £175,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.