9 Osborne House, Courtlands, Sheen Road, Richmond, TW10 5BE

9 Osborne House is a two-bedroom semi-detached house in Richmond (TW10 5BE). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1950-1966 and council tax band E. At 88 m² this is the largest unit on EPC record across the building (60–88 m²). The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (71 versus a worst of 48). Other recorded features include a balcony. The latest certificate (November 2022) shows a C (score 71). When first surveyed in July 2009 the rating was E, the property has climbed 2 bands since. Between certificates, window efficiency went from Very Poor to Good and lighting went from Poor to Very Good.

Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). On a £-per-square-foot basis, the last sale (£718/sq ft) was about 122% above the typical sold price in the postcode. Last changed hands 11 years ago, in August 2015.