429a, Alexandra Avenue, Harrow, HA2 9SE

429a is a mid-terrace house in Harrow (HA2 9SE). It has a recorded floor area of 66 m² (around 710 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (July 2022) shows an E (score 43), well below the UK norm with real room to improve. When first surveyed in December 2013 the rating was G, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Good and window efficiency went from Very Poor to Good; while hot-water efficiency dropped from Poor to Very Poor and main heating dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 81), a 3-band jump. Main heating runs on electricity. At 66 m² this is the 19th smallest of 29 units on EPC record in the building, where floor areas span 25–123 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (43 versus a best of 75).

Today's modelled estimate of £307,000 is 76.4% below the 2022 sale of £1,300,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£1,830/sq ft) was about 305.5% above the typical sold price in the postcode. At 66 m² the property is well over the postcode median (47 m² across 28 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). Last sale on file: £1,300,000 in December 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.