31 Cardigan Street, Luton, LU1 1RP

31 Cardigan Street is a mid-terrace house in Luton (LU1 1RP). It has a recorded floor area of 23 m² (around 248 sq ft) and construction records dating it to 1967-1975. The latest certificate (May 2021) shows an E (score 46), well below the UK norm with real room to improve. Earlier certificates rated it C (February 2017); the latest reading is 2 bands lower. Between certificates, main heating went from Very Poor to Average; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on electricity. At 23 m² this is the 2nd smallest of 37 units on EPC record in the building, where floor areas span 15–102 m². The building's EPC ratings span G to C across 37 units on file.

At 23 m² it sits well below the postcode median (58 m² across 36 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 72% of similar EPCs). One planning record on file: an extension approved in 2025. Past consents include an extension, meaningful when judging how the property has evolved.