136a, St Albans Avenue, London, W4 5JR

136a is a one-bedroom end-of-terrace house in London (W4 5JR). It has a recorded floor area of 40 m² (around 431 sq ft) and construction records dating it to 1900-1929. The latest certificate (March 2016) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in December 2011 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Good; while lighting dropped from Very Good to Average. The recommended improvements would push it to C (score 77). The latest certificate is from March 2016, so improvements made since then won't be reflected.

Held since November 2007 — that's 19 years off the open market, well above the local norm. Across the public record there are 5 sales, relatively high churn for a single property. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 40 m² it sits well below the postcode median (140 m² across 40 EPCs), making it one of the more compact homes locally. Across 1998–2007, sale prices on this property compounded at 14.4% per year. Today's modelled estimate of £371,000 is 48.4% above the 2007 sale price.