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DIEM Ltd staff practice by the standards set by professional bodies to which they are members, including maintaining current knowldedge by continuing professional development.


As a firm, DIEM Ltd takes regulation and professional standards seriously and holds the following memberships and accreditations:



DIEM Ltd is Regulated by RICS

(The Royal Institution of Chartered Surveyors)






DIEM Ltd is pre-qualified by Constructionline

(the UK's largest register for pre-qualified contractors and consultants) for the following work categories:


•Environmental Audit

•Environmental Consultants

•Environmental education, training & marketing

•Estate and land surveying

•Agents (for acquisition or disposal of property)

•Property Management

•Tenant rights and compensation claims (rural)

•Noise environmental prediction and measurement.






DIEM Ltd is a member of the Ombudsman Services: Property

to ensure the highest level of customer care.