21 Hayfield Avenue, Sawston, Cambridge, CB22 3JZ

21 Hayfield Avenue is a four-bedroom semi-detached house in Sawston, Cambridge, Cambridge (CB22 3JZ). It has a recorded floor area of 102 m² (around 1101 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (January 2010) shows a D (score 62), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 72). The latest certificate is from January 2010, so improvements made since then won't be reflected. Records show the property has been extended at some point in its history.

It hasn't traded since October 2010, a hold of 16 years that's notably long for the area. Across the public record there are 4 sales, relatively high churn for a single property. Across 1998–2010, sale prices on this property compounded at 6.9% per year. Today's modelled estimate of £385,000 sits 95.4% above the 2010 sale of £197,000. On a £-per-square-foot basis, the last sale (£179/sq ft) was about 17.8% below the postcode norm. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. At 102 m² it's 19.7% larger than the typical home in the postcode (86 m² median across 22 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs).