17a, Alma Park Road, Grantham, NG31 9SX

17a is a two-bedroom mid-terrace house in Grantham (NG31 9SX). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 1950-1966 and council tax band A. At 46 m² this is the smallest unit on EPC record across the building (46–113 m²). The building's EPC ratings span F to B, with this unit at the bottom. On EPC score it ranks last in the building (38 versus a best of 86). The latest certificate (August 2023) shows an F (score 38), near the bottom of the EPC scale. Earlier certificates rated it E (October 2008); the latest reading is one band lower. Between certificates, hot-water efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Good to Poor. The recommended improvements would lift it to D (score 68), a 2-band jump. Main heating runs on electricity.

It hasn't traded since May 2006, a hold of 20 years that's notably long for the area. At 46 m² it's 27% smaller than the typical home in the postcode (63 m² median across 13 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £109,000 sits 67.7% above the 2006 sale of £65,000. On a £-per-square-foot basis, the last sale (£131/sq ft) was about 15.3% above the typical sold price in the postcode.