560 houses were sampled from 13 areas across New Zealand, providing national coverage of owned and rented houses. More information on the sampling frame, survey method and survey tools can be found in SR370 BRANZ 2015 House Condition Survey: Comparison of house condition by tenure [PDF, 3.1MB].
Trained surveyors undertake a comprehensive assessment of the physical properties of the house, recording details on materials, systems and services present, energy efficiency (insulation and heating), signs of damp and mould, the condition of individual components and an overall assessment of state of repair.
