A report of the building at Millbank Wharf was drawn up by professional valuers in December 1900 in anticipation of the proposed incorporation of the company following year. The report stated that the main building comprised a three-room office, two storerooms, five cement kilns, two plaster ovens, a lime mill, a rending store, a circular saw bench, an iron store, a cement store and two engine room complete with boilers. Other buildings included lime kilns, coal stores, cement sheds, brick sheds, iron stores, slurry pits, a cement-drying building, a lime house and a chimney shed. The yard had a frontage to the River Itchen of nearly and a rear frontage of . The value of the whole property was estimated at £6670 freehold.