11 High Street, Collingtree, Northampton, NN4 0NE

11 High Street is an end-of-terrace house in Collingtree, Northampton, Northampton (NN4 0NE). It has a recorded floor area of 112 m² (around 1206 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (May 2026) shows an E (score 48), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 72), a 2-band jump. This certificate was lodged in the last six months, so the rating reflects current condition.

Held since January 1996 — that's 31 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £309,000 sits 543.8% above the 1996 sale of £48,000. On a £-per-square-foot basis, the last sale (£40/sq ft) was about 81.9% below the postcode norm. One planning record on file: an extension approved in 2005. Past consents include an extension, meaningful when judging how the property has evolved. At 112 m² it's 22.6% larger than the typical home in the postcode (91 m² median across 58 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs).