48a, Montgomerie Road, Southsea, PO5 1ED

48a is a one-bedroom end-of-terrace house in Southsea (PO5 1ED). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (September 2025) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in May 2012 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good, lighting went from Average to Very Good and main heating went from Average to Good; while window efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 76). At 48 m² this is the 2nd smallest of 40 units on EPC record in the building, where floor areas span 47–194 m². The building's EPC ratings span D to C, with this unit at the bottom.

At 48 m² it sits well below the postcode median (109 m² across 39 EPCs), making it one of the more compact homes locally. Across 1995–2013, sale prices on this property compounded at 7% per year. Today's modelled estimate of £148,000 is 42.3% above the 2013 sale price. On a £-per-square-foot basis, the last sale (£201/sq ft) was about 29.2% above the typical sold price in the postcode. On the market in May 2013 and unlisted since — roughly 13 years.