By 1892, Shirley and Freemantle Local Board of Health were considering building new offices on the Brooklyn estate, which the 1860s Ordnance Survey map shows to be consistent with the extant building's location. Plans were submitted in 1892 and a Public inquiry was held in January 1893. The building has a foundation stone laid by W.A.Killby esq, chairman of the Shirley and Freemantle Local Board, 12 June 1893. The stone also mentions that H.J.West was the architect and F.Osman was the contractor. Speeches at the laying ceremony were used to attempt to justify the expense of the building, criticise Southampton for polluting the Itchen, and express resistance to Southampton ever annexing Shirley. The report in the Hampshire Advertiser also describes the building which would include an upstairs boardroom 30 ft long by 25 ft wide, and downstairs offices for the clerk, surveyor, inspector of nuisances, and the collector (of revenues).