154a, Chiswick High Road, Hounslow, London, W4 1PR

154a is a mid-terrace house in Hounslow, London, London (W4 1PR). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to 1900-1929 and council tax band E. At 103 m² this is the largest unit on EPC record across the building (41–103 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (November 2019) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since June 2009. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 70).

At 103 m² the property is well over the postcode median (60 m² across 15 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs). One planning record on file: an extension approved in 2016. Past consents include an extension and subdivision, meaningful when judging how the property has evolved.