17 Hardcastle Gardens, Sheffield, S13 7GN

17 Hardcastle Gardens is a three-bedroom semi-detached house in Sheffield (S13 7GN). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (January 2017) shows a D (score 56), a step below the typical UK home. The rating has held steady at D across 2 certificates since November 2010. Between certificates, window efficiency went from Very Poor to Good and lighting went from Poor to Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 72). Other recorded features include outbuildings. The home occupies a corner plot.

Held since January 2011 — that's 15 years off the open market, well above the local norm. Today's modelled estimate of £156,000 sits 387.5% above the 2011 sale of £32,000. On a £-per-square-foot basis, the last sale (£39/sq ft) was about 52.6% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 70% of similar EPCs).