17a, Marlborough Road, Sheffield, S10 1DA

17a is a three-bedroom semi-detached house in Sheffield (S10 1DA). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (December 2020) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in September 2019 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Good, hot-water efficiency went from Poor to Good and lighting went from Poor to Very Good. The recommended improvements would push it to C (score 77). At 88 m² this is the 7th smallest of 31 units on EPC record in the building, where floor areas span 51–232 m². The building's EPC ratings span F to B across 31 units on file.

At 88 m² it sits well below the postcode median (151 m² across 30 EPCs), making it one of the more compact homes locally. Across 2020–2021, sale prices on this property compounded at 33.3% per year. Today's modelled estimate of £252,000 is 14.5% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£232/sq ft) was about 23.2% above the typical sold price in the postcode. Sold April 2021 for £220,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.