Building control

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We have just had steel removed and whilst inspecting it building control noticed we had removed patio doors to conservatory. Husband told him we were having a roof put on it. They r now refusing to grant building regulations certificate for steel unless we send in another application for the roof and conservatory renovations even though steel is compliant. Can they do this?

Your conservatory is not classed as an habitable structure so it won't comply with structural, energy, fire, radon, ventilation, security or any other regulation. So it won't be able to support same wind, snow and other live loads as well as a compliant structure. It'll cost a fortune to heat and potentially overload your boiler. I'm guessing it is plastic so will have zero fire resistance meaning that it'll go soft and collapse very very quickly. I doubt there has been a radon test or a radon barrier - radon is cancerous. I could go on.

On top of all this even if you do get BC to sign off it will count as part of your permitted development so needs to comply with planning as well.

@woolythoughts you don't have a dining room. You have an unheated adjoining space which is designed to be used in the warmer months of the year. If you wanted a dining room extension, it would have cost more and would comply with the building regs for a habitable space.
You can pitch a tent in the garden, place a table in it and call it a dining room - it will be comfortable during summer but it isn't a dining room - same with a conservatory.
You seem to think that it is an option to only comply with laws that you agree with?

Because it would become an open space rather then two rooms. Lucky for me i know what im doing and loop holes. It wont cost more in energy as its all been worked out. So those who are spouting rubbish clearly dont have any idea what my extension/con will be and arent in the buisness.

Go on tictac, I'm the one spouting rubbish but I'm definitely in the 'business' and I'm always willing to learn and be proved wrong.
I'm writing on this thread trying to assist the OP with impartial advice, you're claiming my advice is rubbish...
so you can help us all by giving us the spec of your glass which is more efficient than an insulated roof and explain how you won't use more energy by creating open door and window holes into a conservatory. It is simple physics - heat loss/m2 (uvalue) of the different building elements (roof, wall, floor, doors, windows) multiplied by the areas of the different building elements.
I am ready to be proved wrong by your thorough heat loss analysis which shows that removing doors and windows is energy neutral.
PS, there are no loopholes in Physics - it either is or it isn't.

I wouldn't trust a mechanic to fix my car properly if he suggested taking off good tyres and putting on bald ones after the MOT, much as I wouldn't trust a builder who suggested taking a building out of compliance once it had been signed off.

I agree I would do with what Building Control say over the builders or installers.

You can find out a bit more here:
www.doubleglazingontheweb.co.uk/resource/category/building-regulations/

Or go to the Government Planning Portal to find out more:

www.planningportal.co.uk/

got it signed off with no door or window and its not cold as i put the radiator on. The council came round to check it out as neighbour claimed we were doing something wrong. All is good. But i like i said i know what im doing