4a, Fessey Road, Byfield, Daventry, NN11 6XG

4a is a one-bedroom end-of-terrace house in Byfield, Daventry, Daventry (NN11 6XG). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 1983-1990 and council tax band A. The latest certificate (March 2009) shows an F (score 29), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 55), a 2-band jump. Main heating runs on electricity. The latest certificate is from March 2009, so improvements made since then won't be reflected.

Untraded for 18 years, with the last transfer in January 2008. Across the public record there are 5 sales, relatively high churn for a single property. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 39 m² it sits well below the postcode median (71 m² across 37 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1996–2008, sale prices on this property compounded at 14.3% per year. Today's modelled estimate of £143,000 is 21.7% above the 2008 sale price. On a £-per-square-foot basis, the last sale (£280/sq ft) was about 52.4% above the typical sold price in the postcode.