The entrance hall comprises a marble mosaic floor incorporating multiple colours, with a decorative roundel to the central field and a defined outer border.

Areas of missing and damaged tesserae were identified during the survey, together with a crack in the subfloor adjacent to the mat well and also in one of the thresholds.

Tesserae surrounding the crack were carefully lifted, the substrate locally repaired and stabilised, and the original tesserae re-laid before the repaired areas were grouted.

Upon completion of the structural and surface repairs, the entire entrance hall floor was thoroughly cleaned using an HTC machine with successive grades of recycled diamond pads and clean water only. This chemical-free process removed ingrained dirt and residues while remaining environmentally responsible and sympathetic to the historic materials.