12 Chiltern Court, Twyford Road, St Albans, AL4 9BN

12 Chiltern Court is a one-bedroom semi-detached house in St Albans (AL4 9BN). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to 1983-1990 and council tax band C. The latest certificate (July 2019) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in June 2009 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Good, lighting went from Poor to Very Good and main heating went from Poor to Average. The recommended improvements would push it to C (score 76). Main heating runs on electricity. At 40 m² this is the 3rd smallest of 15 units on EPC record in the building, where floor areas span 37–54 m². The building's EPC ratings span E to C across 15 units on file.

Across 2005–2014, sale prices on this property compounded at 3.9% per year. Today's modelled estimate of £249,000 sits 50.9% above the 2014 sale of £165,000. On a £-per-square-foot basis, the last sale (£383/sq ft) was about 33.1% above the typical sold price in the postcode. On the market in May 2014 and unlisted since — roughly 12 years. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.