81a, High Street, Collingham, Newark, NG23 7NG

81a is a three-bedroom detached house in Collingham, Newark, Newark (NG23 7NG). It has a recorded floor area of 90 m² (around 969 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (September 2020) shows a D (score 58), a step below the typical UK home. When first surveyed in September 2010 the rating was F, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Average to Good, lighting went from Very Poor to Average and main heating went from Average to Good. The recommended improvements would push it to C (score 74). At 90 m² this is the 8th smallest of 29 units on EPC record in the building, where floor areas span 63–287 m². The building's EPC ratings span F to A across 29 units on file. Period features are noted in the property record.

Across 2004–2019, sale prices on this property compounded at 2.2% per year. Today's modelled estimate of £139,000 is 49.5% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£96/sq ft) was about 38.8% below the postcode norm. At 90 m² it's 18.5% smaller than the typical home in the postcode (110 m² median across 28 EPCs). Most recent transfer: October 2019 at £93,000.