9 Mount Liell Court East, The Leas, Westcliff On Sea, SS0 8HH

9 Mount Liell Court East is a semi-detached house in Westcliff On Sea (SS0 8HH). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to before 1900 and council tax band D. At 58 m² this is the 7th smallest of 9 units on EPC record in the building, where floor areas span 31–62 m². The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (71 versus a worst of 59). The latest certificate (October 2025) shows a C (score 71). When first surveyed in July 2012 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Average to Very Good and lighting went from Poor to Good; while window efficiency dropped from Average to Poor.

Across 1999–2012, sale prices on this property compounded at 6.6% per year. Today's modelled estimate of £280,000 sits 53.4% above the 2012 sale of £182,500. On a £-per-square-foot basis, the last sale (£292/sq ft) was about 23.5% above the typical sold price in the postcode. Its energy rating outperforms most of the postcode (better than 88% of similar EPCs). On the market in October 2012 and unlisted since — roughly 14 years.