10 12, Flat 2, Rockstone Place, Southampton, SO15 2SL

10 12 is a mid-terrace house in Southampton (SO15 2SL). It has a recorded floor area of 106 m² (around 1141 sq ft), construction records dating it to 2007 onwards and council tax band D. The latest certificate (June 2019) shows a C (score 75), near the top of the C band. When first surveyed in August 2010 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Average to Good and main heating went from Very Poor to Average. The recommended improvements would push it to B (score 81). Main heating runs on electricity. At 106 m² this is the 6th smallest of 10 units on EPC record in 10 12, where floor areas span 43–139 m². The building's EPC ratings span F to B across 10 units on file.

One historical planning record sits against the property in 2013. The record references listed-building consent, which constrain future alterations. Its energy rating outperforms most of the postcode (better than 78% of similar EPCs). Last changed hands 15 years ago, in June 2011.