23a, Westmoreland Road, Southwark, London, SE17 2AX

23a is a two-bedroom mid-terrace house in Southwark, London, London (SE17 2AX). It has a recorded floor area of 81 m² (around 872 sq ft) and construction records dating it to 1900-1929. The latest certificate (October 2018) shows a D (score 56), a step below the typical UK home. When first surveyed in August 2016 the rating was G, the property has climbed 3 bands since. Between certificates, window efficiency went from Poor to Average, hot-water efficiency went from Average to Good and lighting went from Very Poor to Good. The recommended improvements would push it to C (score 70). At 81 m² this is the 11th smallest of 18 units on EPC record in the building, where floor areas span 13–140 m². The building's EPC ratings span E to C across 18 units on file. Other recorded features include a basement.

Held since May 2008 — that's 18 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 81 m² the property is well over the postcode median (54 m² across 20 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Across 2000–2008, sale prices on this property compounded at 19.1% per year. Today's modelled estimate of £538,000 sits 53.7% above the 2008 sale of £350,000. On a £-per-square-foot basis, the last sale (£401/sq ft) was about 15.8% above the typical sold price in the postcode.