17 Caroline Street, Newport, NP20 1EQ

17 Caroline Street is a three-bedroom mid-terrace house in Newport (NP20 1EQ). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (March 2018) shows a D (score 62), on the cusp of jumping into the C band. When first surveyed in October 2015 the rating was G, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Good and hot-water efficiency went from Very Poor to Good. The recommended improvements would lift it to B (score 81), a 2-band jump.

Held since September 2002 — that's 24 years off the open market, well above the local norm. Sale prices here have outpaced Newport HPI: 22.3% per year against 0% for the wider region. Today's modelled estimate of £150,000 sits 66.7% above the 2002 sale of £90,000. On a £-per-square-foot basis, the last sale (£97/sq ft) was about 26.9% above the typical sold price in the postcode.