+1 to all the contributions so far.
I have built a MBC timberframe house and used an independent BCO. I started off by sending a full MBC design package, including SE Caculations and foundation design, asking to be advised of anything else that was required for BC approval. I received the following " Do you have a building regs specification as I need to do a plan check and comment on compliance with the building regs ..."
I then responded "Not sure what you require for the "building regs specification" - can you please clarify for me? I have sent you a calculation and drawings package for the timberframe and the foundation. What else do you require and I will arrange to provide it? "
He responded " with all jobs we normally see a detailedspecification to cover aspects such as fire/ means of escape. ventilation,staircase design etc the plans provided so far cover the structural aspectsand thermal requirements "
I asked "Do you an good example that I could use to ensure that I cover everything and i will then quickly develop a detailed specification specific to Eastcroft?" I never received a response.
So I did some research online, including Websites such as http://www.buildingregs4plans.co.uk and looked at what @JSHarris had done and what @Bitpipe was experiencing with questions from his BCO at the same time . I then proceeded to develop my Building Regulation Specification and sent it to the BCO with the following note " I have done some research, looking at similar documents, and produced the attached Building Regulation Specification for your review and comment. I have endeavoured to detail all the relevant information but if you require more detail the please advise and I will revise to meet your requirements It refers to various drawings, calculations and related documents (which I attach for your reference and convenience, as I have already submitted most of these documents to you before) and have included them all in one zipped folder for your convenience "
I never received any nore questions or comments, though he did visit site on a few occaasions and I kept him updated with regular emails and photos. I requested approval of a couple of areas - proposals for fire/smoke detectors installtion and forjuliet balcony fixings - to which he responded and gave approval.
I attach my Building Regulation Specification without the attachments. On reflection, it is not particulalrly good document and I could have included a lot more detail/definition of various systems. I thought that it would require updating with specific information, as the BCO asked questions but the questions never came and I never updated it... On the positive side, it did force me to read and understand all the Buiding Regulations as they applied to my build.
Building Regulation Specification for new build house.pdf