Westmark House, Flat 3, 436 Havant Road, Farlington, Portsmouth, PO6 1AB

Westmark House is a one-bedroom mid-terrace house in Farlington, Portsmouth, Portsmouth (PO6 1AB). It has a recorded floor area of 47 m² (around 506 sq ft) and construction records dating it to 1900-1929. At 47 m² this is the largest unit on EPC record across Westmark House (38–47 m²). The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (76 versus a worst of 58). The latest certificate (July 2020) shows a C (score 76), near the top of the C band. Earlier certificates rated it B (October 2008); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Good and lighting went from Very Poor to Good; while wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Very Good to Good.

At 47 m² it sits well below the postcode median (83 m² across 23 EPCs), making it one of the more compact homes locally. Last sale on file: £140,000 in November 2020. Across the public record there are 4 sales, relatively high churn for a single property. Across 2001–2020, sale prices on this property compounded at 4.7% per year. Today's modelled estimate of £155,000 is 10.7% above the 2020 sale price.