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Energy and Sustainability Hub

Design Matters has been appointed a Nationwide Home Energy Rating Scheme (NatHERS) Assessor Accrediting Organisation by the Department of Environment and Energy. 

Persons wishing to enlist the services of an accredited TPA should visit the Find a Thermal Performance Assessor section at this website.

Thermal Performance Assessors

Thermal Performance Assessors (TPAs) conduct residential building thermal performance assessments.

Residential building thermal performance assessment is required for all proposed residential construction under current legislation, and measures the thermal performance of a proposed dwelling design.