18 Quartz Terrace, Rayners Lane, Harrow, HA2 0BT

18 Quartz Terrace is a one-bedroom end-of-terrace house in Harrow (HA2 0BT). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 2007 onwards and council tax band B. At 42 m² this is the 2nd smallest of 27 units on EPC record in the building, where floor areas span 38–150 m². The building's EPC ratings span C to B, with this unit at the bottom. Other recorded features include a balcony. The latest certificate (July 2020) shows a C (score 79), near the top of the C band. Earlier certificates rated it B (December 2008); the latest reading is one band lower. Between certificates, roof efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average.

At 42 m² it sits well below the postcode median (66 m² across 26 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £229,000 is 33.1% above the 2013 sale price. On a £-per-square-foot basis, the last sale (£381/sq ft) was about 32.6% above the typical sold price in the postcode. 13 years since the last transfer (April 2013).