Austin House, Flat 3, High Street, Rothwell, Kettering, NN14 6LE

Austin House is a two-bedroom semi-detached house in Rothwell, Kettering, Kettering (NN14 6LE). It has a recorded floor area of 66 m² (around 710 sq ft), construction records dating it to 1991-1995 and council tax band A. At 66 m² this is the largest unit on EPC record across Austin House (44–66 m²). The building's EPC ratings span C to B, with this unit at the top. On EPC score it ranks first in the building (82 versus a worst of 69). The latest certificate (December 2019) returns a B (score 82), comfortably above the UK average. The rating has held steady at B across 3 certificates since March 2009. Between certificates, window efficiency went from Average to Good; while lighting dropped from Very Good to Good.

Held since January 2000 — that's 26 years off the open market, well above the local norm. At 66 m² it's 24.5% larger than the typical home in the postcode (53 m² median across 20 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Across 1995–2000, sale prices on this property compounded at 0.7% per year. Today's modelled estimate of £129,000 sits 258.3% above the 2000 sale of £36,000. On a £-per-square-foot basis, the last sale (£51/sq ft) was about 39.4% below the postcode norm.