47 Griffin Gardens, Harborne, Birmingham, B17 0HU

47 Griffin Gardens is a one-bedroom semi-detached house in Harborne, Birmingham, Birmingham (B17 0HU). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to 1983-1990 and council tax band B. At 40 m² this is the 8th smallest of 28 units on EPC record in the building, where floor areas span 33–79 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (May 2023) shows an E (score 52), well below the UK norm with real room to improve. Earlier certificates rated it D (December 2011); the latest reading is one band lower. Between certificates, lighting went from Poor to Very Good; while window efficiency dropped from Good to Average and hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on electricity.

Held since December 2003 — that's 22 years off the open market, well above the local norm. At 40 m² it's 23.1% smaller than the typical home in the postcode (52 m² median across 27 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2002–2003, sale prices on this property compounded at 18.9% per year. Today's modelled estimate of £149,000 is 49% above the 2003 sale price. On a £-per-square-foot basis, the last sale (£232/sq ft) was about 40.5% above the typical sold price in the postcode.