51a, Roxborough Park, Harrow, HA1 3BA

51a is a one-bedroom detached house in Harrow (HA1 3BA). It has a recorded floor area of 152 m² (around 1636 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (March 2019) shows an E (score 41), well below the UK norm with real room to improve. When first surveyed in September 2009 the rating was F, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Poor; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would lift it to C (score 71), a 2-band jump. Other recorded features include a balcony.

Untraded for 20 years, with the last transfer in December 2005. At 152 m² the property is well over the postcode median (56 m² across 40 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). Today's modelled estimate of £880,000 sits 85.3% above the 2005 sale of £475,000. 9 planning records sit against the property, 4 approved, 2 refused. Past consents include an extension and subdivision, meaningful when judging how the property has evolved.