12b, Grosvenor Square, Uppermill, Oldham, OL3 6DG

12b is a one-bedroom mid-terrace house in Uppermill, Oldham, Oldham (OL3 6DG). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to before 1900 and council tax band A. At 40 m² this is the smallest unit on EPC record across the building (40–146 m²). The building's EPC ratings span E to C across 4 units on file. The home occupies a cul-de-sac position. The latest certificate (November 2022) shows a D (score 66), on the cusp of jumping into the C band. Earlier certificates rated it C (February 2010); the latest reading is one band lower. Between certificates, lighting went from Poor to Very Good; while window efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 77).

At 40 m² it sits well below the postcode median (122 m² across 3 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £132,000 is 45.9% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£210/sq ft) was about 78.6% above the typical sold price in the postcode. Last changed hands 12 years ago, in September 2014.