50b, Penrose Street, Southwark, London, SE17 3DW

50b is a one-bedroom mid-terrace house in Southwark, London, London (SE17 3DW). It has a recorded floor area of 70 m² (around 749 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (September 2011) shows an E (score 52), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 67). The latest certificate is from September 2011, so improvements made since then won't be reflected. At 70 m² this is the 4th smallest of 15 units on EPC record in the building, where floor areas span 37–163 m². The building's EPC ratings span F to B across 15 units on file.

Across 2004–2012, sale prices on this property compounded at 4.8% per year. Today's modelled estimate of £472,000 sits 74.8% above the 2012 sale of £270,000. On a £-per-square-foot basis, the last sale (£361/sq ft) was about 171.7% above the typical sold price in the postcode. At 70 m² it sits well below the postcode median (106 m² across 14 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. Last sold in January 2012, so it's been off the market for around 14 years.