11a, St Johns Park, Greenwich, London, SE3 7TD

11a is a detached house in Greenwich, London, London (SE3 7TD). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (June 2025) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 6 certificates since November 2009. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 80). At 111 m² this is the 33rd smallest of 46 units on EPC record in the building, where floor areas span 25–443 m². The building's EPC ratings span F to C across 46 units on file.

It hasn't traded since January 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 2004–2007, sale prices on this property compounded at 16.2% per year. Today's modelled estimate of £740,000 sits 74.1% above the 2007 sale of £425,000. 3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. At 111 m² it's 19.4% larger than the typical home in the postcode (93 m² median across 68 EPCs).