48a, Merivale Road, Harrow, HA1 4BH

48a is a one-bedroom mid-terrace house in Harrow (HA1 4BH). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to 1900-1929 and council tax band C. At 49 m² this is the 11th smallest of 30 units on EPC record in the building, where floor areas span 23–109 m². The building's EPC ratings span G to C, with this unit at the top. Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position. The latest certificate (July 2015) shows a C (score 71). When first surveyed in May 2013 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Average and lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average. The latest certificate is from July 2015, so improvements made since then won't be reflected.

Across 1998–2013, sale prices on this property compounded at 7.8% per year. Today's modelled estimate of £316,000 sits 50.5% above the 2013 sale of £210,000. On a £-per-square-foot basis, the last sale (£398/sq ft) was about 32.5% above the typical sold price in the postcode. At 49 m² it sits well below the postcode median (74 m² across 29 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 86% of similar EPCs). On the market in September 2013 and unlisted since — roughly 13 years.