13a, Cantwell Road, London, SE18 3LN

13a is a two-bedroom semi-detached house in London (SE18 3LN). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 1900-1929 and council tax band C. At 51 m² this is the smallest unit on EPC record across the building (51–62 m²). On EPC score it ranks last in the building (65 versus a best of 67). The latest certificate (September 2024) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since July 2013. Between certificates, window efficiency went from Very Poor to Good and lighting went from Average to Very Good. The recommended improvements would push it to C (score 75).

It changed hands recently, sold March 2025 for £300,000. Across the public record there are 4 sales, relatively high churn for a single property. Across 2002–2025, sale prices on this property compounded at 5.6% per year. On a £-per-square-foot basis, the last sale (£546/sq ft) was about 229.7% above the typical sold price in the postcode. At 51 m² it's 25% smaller than the typical home in the postcode (68 m² median across 17 EPCs).