Donnachadh O’ Brien & Associates has 20 years’ experience in the assessment of the Civil & Structural requirements of both new and existing developments. Our knowledge, experience and detailed assessment is invaluable at pre-purchase and feasibility stage to allow us to comprehensively report to our clients on project viability.

Our due diligence would typically cover the following areas:

  • External works – drainage, roads, services
  • Desk top assessment in relation to Planning Permission compliance
  • Review of all relevant and available project Documentation
  • Foundations and below ground structures
  • Overall robustness and stability
  • Basements and basement construction
  • Ground and suspended floors and assessment of load carrying capacity
  • Roof structure assessment
  • External walls assessment


Donnachadh O’Brien & Associates utilise the latest Building Information Modelling (BIM) technology throughout all design phases on our projects. Through training and development on Revit Structure, BIM enables us as civil and structural engineers to seamlessly coordinate structural design, drawing and detailing, minimize errors, effect design changes quickly and streamline collaboration between design teams. By incorporating 3D detailing through Revit, we integrated our design software tools such as Robot, Tekla Fastrack and Building Designer to support the structural design and information delivery process.

Our BIM works at DOB&A are carried out to the highest standard and in accordance with IS EN ISO Regulations (namely IS EN ISO 19650-1, IS EN ISO 19650-2 and PAS 1192 Frameworks) across numerous levels of model detail ranging from LOD1:Symbolic to LOD4:Specific. 


Donnachadh O’Brien and Associates has 10 years’ experience in the analysis of piping systems in large scale data centre schemes and other similar projects. Our range of services typically extends to pipe stress analysis for various piping materials including HDPE and Carbon Steel based on the Client’s preferred pipe routing system. DOB&A also offer a design service for the associated pipe support bracketry where required

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