Grosvenor House, Flat 1, Ambrose Place, Worthing, BN11 1PZ

Grosvenor House is a five-bedroom detached house in Worthing (BN11 1PZ). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to before 1900 and council tax band G. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. Other recorded features include a basement. Period features are noted in the property record. Records show the property has been extended at some point in its history. At 74 m² this is the largest unit on EPC record across Grosvenor House (39–74 m²). The building's EPC ratings span E to C across 6 units on file. The latest certificate (April 2025) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 75).

Untraded for 29 years, with the last transfer in July 1997. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 74 m² the property is well over the postcode median (48 m² across 43 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £452,000 sits 653.3% above the 1997 sale of £60,000. On a £-per-square-foot basis, the last sale (£75/sq ft) was about 69.6% below the postcode norm.