Dr Aaran Marriner-Clark

Dr Aaran Marriner-Clark is a Chartered Fellow Building Surveyor & Chartered  Building Engineer, his specialist areas of expertise are housing pathology and black mould.He is currently appointed as Director of the ISSE following on from his position as Senior chair of the college of Fellows for the ISSE. 

Dr Marriner -Clark is also a Professor of Fellows for Mycological Housing Pathology,  Senior Educational Standards and Research Fellow, and Director at the Institute of Specialist Surveyors and Engineers (ISSE)  (Ofqual level 8).

Dr Marriner-Clark is a doctor of Philosophy from Suffolk College 1993 (Ofqual level 8.) His PhD research looked at the cause and distribution of black pin mould in housing in the UK. This allowed him to achieve full membership of the British Mycological Society in 2019, (Ofqual level 6.) Dr Marriner-Clark is the only BMS accredited black pin mould housing pathology expert in the UK. President and Fellow of the National Institution of Black Mould Experts (Ofqual level 8.) Also, awarded Fellowship of The Royal Society for Public Health, in recognition of his work in Black pin mould (Ofqual level 8.)

Expert witness

Specialist in Housing pathology, supplying expert witness reports for the HM court services and for barristers throughout the UK. 

Responsible for reactive housing complaints work, HHSRS assessment, HMO licensing and enforcement of housing standards for councils across the UK for in excess of 30 years. Dr Marriner-Clark has been engaged as an expert witness for many years mediating in complex court cases where his knowledge and expertise are required to give direction to the courts.

Enforcement of housing legislation has been the backbone of his career, such as prosecuting landlords under the Housing Act 2004, and advised on disputes arising in relation to the Council’s property portfolio, HHSRS and housing standards litigation assessment and to draft advice notes, conduct legal research and prepare reports for Committees for consideration. Furthermore, he has attended relevant Committees and present reports as required by numerous council Solicitors or his/her representative and given testimony in countless court cases.    

Expert in Housing Pathology and Accredited Black Pin Mould Expert.

Professor of the College of Fellows (prof. COF) ISSE Professor of the College of Fellows for the Association of Building Pathology (prof. COF) TABP Chartered Fellow Royal Institution Chartered Surveyors 6677134 Chartered Member Chartered Association of Building Engineers C. Build E MCABE 64149124 Chartered Fellow of The Royal Society for Public Health. FRSPH 133792 Fellow Applied Microbiology International FAMI 462430 Fellow Association of Building Pathology with CMRP Member Royal Society of Biology P0163851 Member of Chartered Institute of Environmental Health 000197051 Member of The British Mycological Society 7431 Member of the Mycological Society of America Member of the British Society for Medical Mycology 482 MBSMM Member of the Residential Property Surveyors Association Member of the International Biodeterioration and Biodegradation Society. MIBBS Member of the British Toxicology Society 1080311 Member of the Chartered Institute of Building MCIOB