12 Corners, Welwyn Garden City, AL7 1RL

12 Corners is a two-bedroom semi-detached house in Welwyn Garden City (AL7 1RL). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1950-1966 and council tax band C. At 65 m² this is the 12th smallest of 20 units on EPC record in the building, where floor areas span 45–70 m². The building's EPC ratings span D to C, with this unit at the top. The property has solar panels on record, all of which lower running costs and tend to lift resale appeal. Other recorded features include a balcony. Period features are noted in the property record. The latest certificate (July 2020) shows a C (score 75), near the top of the C band. The rating has held steady at C across 2 certificates since January 2010. Between certificates, wall efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good.

Sale prices here have outpaced England HPI: 2% per year against 0% for the wider region. Today's modelled estimate of £269,000 sits 78.1% above the 2012 sale of £151,000. At 65 m² it's 27.5% larger than the typical home in the postcode (51 m² median across 19 EPCs). On the market in August 2012 and unlisted since — roughly 14 years.