The New Zealand Building Economist is a quarterly Building Cost Guide published in February, May, August and November of each year. It contains current detailed trade building costs for Residential and Light Commercial. The unit rates set by our Registered Quantity Surveyor and are updated as required for each issue. For Architects, Engineers, Drafts people, Developers, Quantity Surveyors, Builders, Carpenters, Sub-contractors, Property Managers, Building Owners, Insurance Assessors, Loss Adjusters, Lawyers, Accountants.