28 Portland Street, Mansfield, NG18 1HD

28 Portland Street is a semi-detached house in Mansfield (NG18 1HD). It has a recorded floor area of 34 m² (around 366 sq ft) and construction records dating it to 1900-1929. At 34 m² this is the smallest unit on EPC record across the building (34–73 m²). The building's EPC ratings span F to C across 8 units on file. The latest certificate (July 2025) shows an E (score 39), well below the UK norm with real room to improve. Earlier certificates rated it D (March 2013); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while window efficiency dropped from Good to Poor and hot-water efficiency dropped from Good to Very Poor. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on electricity.

Across 2013–2025, sale prices on this property compounded at 10.8% per year. Today's modelled estimate of £116,000 is 10.1% below the 2025 sale of £129,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£352/sq ft) was about 760% above the typical sold price in the postcode. Most recent transfer was February 2025 at £129,000 — fresh data. At 34 m² it sits well below the postcode median (68 m² across 7 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs). One planning record on file: change of use to residential approved in 2023. Past consents include change of use to residential, meaningful when judging how the property has evolved.