About the Practitioner
Building Pathology Diagnostics is a senior-led diagnostic consultancy operating exclusively on cases requiring advanced diagnostic capability — structural failure, chronic moisture pathology, latent defect identification, and multi-party liability analysis.
Garth Jarrett
01 — Seniority & Operational Background
Over 15 years of direct industry experience in complex building delivery, defect analysis, and forensic investigation. This is not a general survey practice. The firm operates exclusively on cases requiring advanced diagnostic capability — structural failure, chronic moisture pathology, latent defect identification, and multi-party liability analysis.
02 — Academic Foundation
The lead consultant holds a Master of Science (MSc) in Building Surveying, specialising in building pathology and defect diagnosis. This academic grounding provides the theoretical framework for hygrothermal analysis, materials science, and structural behaviour that underpins every investigation. BPD operates at the intersection of rigorous academic research and site-based forensic practice.
03 — The BPD Diagnostic Standard
Standard RICS HomeBuyer reports identify symptoms. BPD identifies cause. Every investigation follows a clinical Root-Cause Analysis (RCA) methodology: the chain of causation is traced from visible defect to origin mechanism, through material failure, design inadequacy, or maintenance neglect. Protimeter moisture mapping, thermal gradient analysis, and borescope inspection of concealed voids are standard procedure — not optional extras.
04 — Legal & Evidential Standard
All BPD findings and reports are drafted to Civil Procedure Rules Part 35 (CPR 35) standards. Every opinion is supported by stated reasoning, every conclusion is evidence-based, and every report contains a statement of truth and declaration of duty to the court. Reports are accepted in County Court, First-tier Tribunal (Property Chamber), and by insurers for building warranty and latent defect claims.
“Every building defect is a consequence, not a coincidence. I trace the chain of causation from symptom to source — then prescribe the fix, not the cover-up.”