Stonehills House, Flat 16, Stonehills, Welwyn Garden City, AL8 6DL

Stonehills House is a mid-terrace house in Welwyn Garden City (AL8 6DL). It has a recorded floor area of 44 m² (around 474 sq ft) and construction records dating it to 1900-1929. At 44 m² this is the 9th 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. On EPC score it ranks first in the building (77 versus a worst of 39). The latest certificate (March 2022) shows a C (score 77), near the top of the C band. When first surveyed in September 2016 the rating was E, the property has climbed 2 bands since. Between certificates, 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 83). Main heating runs on electricity.

At 44 m² it's 18.5% smaller than the typical home in the postcode (54 m² median across 34 EPCs). Its energy rating outperforms most of the postcode (better than 85% of similar EPCs). Across 2019–2023, sale prices on this property compounded at 1.4% per year. On a £-per-square-foot basis, the last sale (£486/sq ft) was about 16% above the typical sold price in the postcode. Most recent transfer: February 2023 at £230,000.