31a, Baker Street, Brighton, BN1 4JN

31a is a mid-terrace house in Brighton (BN1 4JN). It has a recorded floor area of 38 m² (around 409 sq ft) and construction records dating it to before 1900. The latest certificate (April 2017) shows a C (score 73). When first surveyed in May 2011 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Average to Good and hot-water efficiency went from Very Poor to Good; while window efficiency dropped from Good to Average and lighting dropped from Very Good to Average. At 38 m² this is the 9th smallest of 39 units on EPC record in the building, where floor areas span 14–141 m². The building's EPC ratings span F to B across 39 units on file.

Held since January 2002 — that's 24 years off the open market, well above the local norm. Across 1995–2002, sale prices on this property compounded at 18.6% per year. Today's modelled estimate of £239,000 sits 117.3% above the 2002 sale of £110,000. On a £-per-square-foot basis, the last sale (£269/sq ft) was about 24.2% below the postcode norm. At 38 m² it's 16.8% smaller than the typical home in the postcode (46 m² median across 38 EPCs). Its energy rating outperforms most of the postcode (better than 76% of similar EPCs).