29a, Harrow View, Harrow, HA1 1RE

29a is a two-bedroom semi-detached house in Harrow (HA1 1RE). It has a recorded floor area of 21 m² (around 226 sq ft), construction records dating it to 1900-1929 and council tax band C. At 21 m² this is the smallest unit on EPC record across the building (21–134 m²). The building's EPC ratings span E to C across 33 units on file. The latest certificate (March 2015) shows a D (score 59), a step below the typical UK home. When first surveyed in December 2012 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good; while hot-water efficiency dropped from Good to Average. The recommended improvements would push it to C (score 74). The latest certificate is from March 2015, so improvements made since then won't be reflected.

Untraded for 19 years, with the last transfer in October 2007. Across the public record there are 4 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 21 m² it sits well below the postcode median (64 m² across 32 EPCs), making it one of the more compact homes locally. Across 1997–2007, sale prices on this property compounded at 13.6% per year. Today's modelled estimate of £312,000 is 38.7% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£995/sq ft) was about 317.6% above the typical sold price in the postcode.