johnraynerarchitecture provides specialised services to architects and lawyers in the areas of architectural specification writing, expert witness opinions and evidence, as well as expert determination for parties to construction contracts.

The services offered include:
+ Architectural specifications
+ Expert witness services
+ Expert determinations

The principal of johnraynerarchitecture, John Rayner is a registered architect, an expert witness, an accredited commercial arbitrator, an accredited adjudicator and an expert determinator.