Horizon House, Apartment 906, Borough Road, Sunderland, SR1 1HS

Horizon House is a detached house in Sunderland (SR1 1HS). It has a recorded floor area of 15 m² (around 161 sq ft). At 15 m² this is the 19th smallest of 84 units on EPC record in Horizon House, where floor areas span 14–21 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 (66 versus a best of 76). The latest certificate (October 2019) shows a D (score 66), on the cusp of jumping into the C band. Main heating runs on electricity: electricity, unspecified tariff.

On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £113,000 sits 69.9% above the 2021 sale of £66,500. On a £-per-square-foot basis, the last sale (£412/sq ft) was about 23.8% above the typical sold price in the postcode. Last sale on file: £66,500 in May 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.