23 Calthorpe Road, Handsworth, Birmingham, B20 3LZ

23 Calthorpe Road is a three-bedroom semi-detached house in Handsworth, Birmingham, Birmingham (B20 3LZ). It has a recorded floor area of 84 m² (around 904 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (October 2014) shows an E (score 49), well below the UK norm with real room to improve. Earlier certificates rated it D (October 2008); the latest reading is one band lower. Between certificates, wall efficiency went from Very Poor to Poor; while roof efficiency dropped from Good to Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 82), a 3-band jump. The latest certificate is from October 2014, so improvements made since then won't be reflected.

It hasn't traded since July 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Sale prices here have outpaced Birmingham HPI: 14.9% per year against 0% for the wider region. Today's modelled estimate of £193,000 sits 60.8% above the 2009 sale of £120,000. On a £-per-square-foot basis, the last sale (£133/sq ft) was about 18.1% above the typical sold price in the postcode.