1b, Oatlands Drive, Slough, SL1 3EH

1b is a one-bedroom semi-detached house in Slough (SL1 3EH). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (March 2019) shows a D (score 59), a step below the typical UK home. When first surveyed in March 2009 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Poor to Average and hot-water efficiency went from Very Poor to Average. The recommended improvements would push it to C (score 78). Main heating runs on electricity. At 41 m² this is the 3rd smallest of 17 units on EPC record in the building, where floor areas span 17–137 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (59 versus a best of 73).

Held since December 2001 — that's 24 years off the open market, well above the local norm. Across 1998–2001, sale prices on this property compounded at 13.7% per year. Today's modelled estimate of £174,000 sits 148.6% above the 2001 sale of £70,000. At 41 m² it sits well below the postcode median (71 m² across 16 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs).