12a, Boreham Holt, Elstree, Borehamwood, WD6 3QF

12a is an end-of-terrace house in Elstree, Borehamwood, Borehamwood (WD6 3QF). It has a recorded floor area of 62 m² (around 667 sq ft), construction records dating it to 1950-1966 and council tax band C. At 62 m² this is the 2nd smallest of 27 units on EPC record in the building, where floor areas span 61–81 m². The building's EPC ratings span G to D, with this unit at the top. The latest certificate (March 2014) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in July 2012 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good, window efficiency went from Average to Good and hot-water efficiency went from Very Poor to Poor. The recommended improvements would push it to C (score 79). Main heating runs on electricity. The latest certificate is from March 2014, so improvements made since then won't be reflected.

Across 2012–2015, sale prices on this property compounded at 17.2% per year. On a £-per-square-foot basis, the last sale (£420/sq ft) was about 43.3% above the typical sold price in the postcode. 11 years since the last transfer (March 2015).