15 Holyrood Court, Marlborough Road, Watford, WD18 0QX

15 Holyrood Court is a one-bedroom semi-detached house in Watford (WD18 0QX). It has a recorded floor area of 36 m² (around 388 sq ft), construction records dating it to 1983-1990 and council tax band B. The latest certificate (January 2021) shows a D (score 56), a step below the typical UK home. When first surveyed in October 2009 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Average to Very Good and main heating went from Very Poor to Average. The recommended improvements would push it to C (score 76). Main heating runs on electricity. At 36 m² this is the 11th smallest of 16 units on EPC record in the building, where floor areas span 29–40 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (56 versus a best of 80).

It hasn't traded since June 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. Across 2000–2007, sale prices on this property compounded at 10% per year. Today's modelled estimate of £203,000 is 38.1% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£379/sq ft) was about 18.3% above the typical sold price in the postcode.