17 Holly Avenue, New Silksworth, Sunderland, SR3 1DT

17 Holly Avenue is a one-bedroom semi-detached house in New Silksworth, Sunderland, Sunderland (SR3 1DT). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (March 2022) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since February 2009. Between certificates, hot-water efficiency went from Poor to Good, lighting went from Very Poor to Very Good and main heating went from Average to Good; while roof efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 73). At 47 m² this is the 4th smallest of 27 units on EPC record in the building, where floor areas span 44–138 m². The building's EPC ratings span E to C across 27 units on file.

Across 2009–2022, sale prices on this property compounded at 2.5% per year. Today's modelled estimate of £95,000 sits 90.2% above the 2022 sale of £49,950. At 47 m² it sits well below the postcode median (79 m² across 26 EPCs), making it one of the more compact homes locally. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. Last sale on file: £49,950 in July 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.