BDSA Quantity Surveyors Construction Experts. Depreciation Schedules. Quantity Surveyor specialising in Depreciation Reports and Construction Cost Estimating. Quantity Surveying services includes depreciation, sinking fund, bill of quantities, council development cost estimate, insurance valuation, depreciation schedule, investment property depreciation schedules. Quantity Surveyor Depreciation Reports, Sydney, Melbourne, Canberra, Cairns, Perth, Brisbane, Adelaide, Newcastle