Havelock House, Flat 1, 114 Crasswell Street, Portsmouth, PO1 1HT

Havelock House is a two-bedroom semi-detached house in Portsmouth (PO1 1HT). It has a recorded floor area of 44 m² (around 474 sq ft), construction records dating it to 1900-1929 and council tax band A. At 44 m² this is the smallest unit on EPC record across Havelock House (44–54 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (53 versus a best of 69). The latest certificate (November 2022) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it D (December 2010); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while window efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to D (score 63).

On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 14 years since the last transfer (October 2012). Across the public record there are 4 sales, relatively high churn for a single property. Across 1998–2012, sale prices on this property compounded at 6.4% per year. Today's modelled estimate of £125,000 is 45.3% above the 2012 sale price. On a £-per-square-foot basis, the last sale (£182/sq ft) was about 31.9% above the typical sold price in the postcode.