21a Herga Court, Sudbury Hill, Harrow, HA1 3RS

21a Herga Court is a one-bedroom mid-terrace house in Harrow (HA1 3RS). It has a recorded floor area of 32 m² (around 344 sq ft), construction records dating it to 1930-1949 and council tax band B. At 32 m² this is the 3rd smallest of 50 units on EPC record in the building, where floor areas span 23–120 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (December 2023) shows a C (score 76), near the top of the C band. The rating has held steady at C across 2 certificates since November 2013. Between certificates, wall efficiency went from Very Poor to Poor; while window efficiency dropped from Good to Average.

Across 1999–2013, sale prices on this property compounded at 6.2% per year. Today's modelled estimate of £206,000 sits 51.5% above the 2013 sale of £136,000. On a £-per-square-foot basis, the last sale (£395/sq ft) was about 77.1% above the typical sold price in the postcode. At 32 m² it sits well below the postcode median (84 m² across 49 EPCs), making it one of the more compact homes locally. Last changed hands 13 years ago, in July 2013.