21 Butlers Court, High Wycombe, HP13 7JH

21 Butlers Court is a two-bedroom semi-detached house in High Wycombe (HP13 7JH). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 1976-1982 and council tax band C. The latest certificate (January 2020) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since November 2009. Between certificates, window efficiency went from Very Poor to Good, lighting went from Very Poor to Very Good and main heating went from Poor to Average; while hot-water efficiency dropped from Average to Very Poor. The recommended improvements would lift it to B (score 81), a 2-band jump. Main heating runs on electricity. At 43 m² this is the 2nd smallest of 28 units on EPC record in the building, where floor areas span 42–52 m². The building's EPC ratings span F to C across 28 units on file. Other recorded features include a conservatory and outbuildings.

It hasn't traded since July 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £191,000 is 30.8% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£315/sq ft) was about 34.2% above the typical sold price in the postcode.