Sorry, building is not really my expertise so I m not sure. However, I believe any companies under "Building Inspection" or similar heading in Yellow Pages could do.
However, if you ask me "有推荐的不错公司做 Environmental Impacts Assessment Report, Traffic Impacts Assessment Report, Landscape/Urban Design Assessment, Arboricultural (Trees) Report or Acoustic Report???", etc, for resource consent purpose - I maybe able to give you some good advices ...