21 Hertford Road, Brighton, BN1 7GG

21 Hertford Road is a four-bedroom mid-terrace house in Brighton (BN1 7GG). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (June 2014) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 4 certificates since October 2012. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Good to Very Good and main heating went from Average to Good; while hot-water efficiency dropped from Average to Very Poor. The recommended improvements would lift it to B (score 85), a 2-band jump. Main heating runs on electricity. The latest certificate is from June 2014, so improvements made since then won't be reflected.

Across 2003–2013, sale prices on this property compounded at 3.8% per year. Today's modelled estimate of £508,000 sits 69.3% above the 2013 sale of £300,000. On a £-per-square-foot basis, the last sale (£442/sq ft) was about 42.9% above the typical sold price in the postcode. At 63 m² it sits well below the postcode median (90 m² across 25 EPCs), making it one of the more compact homes locally. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Last changed hands 13 years ago, in April 2013.