I'm following up on the above. Without some further information from you as above, I am limited in what I can say on the matter but in the hope it is helpful nonetheless, I will provide you with the following broad answer. If you are able to kindly provide me with the above further information or if you have any further questions generally, I will be delighted to expand on the following - please just reply back to me in this case:
Notwithstanding the above, in general terms if I have understood the position correctly above, if you have received an enforcement notice from the local authority or an indication that they will serve an enforcement notice, you have the right to appeal such enforcement notice. However, I think the appeal is likely to be challenging in this respect because whilst I appreciate you have not taken these actions necessarily so as to create a new dwelling, in effect, in what you have done, in planning law, you are creating a brand-new property. you could then subsequently having established a new property curtilage, applied to build a new dwelling to replace or perhaps even in addition to the annex. The council may be keen to prevent this.
Providing you are alive to the possible difficulties associated with appealing the above, if you wish to make an appeal in relation to an enforcement notice, initially you can discuss the matter with the local authority and see if you can come to an agreement in relation to the same but if that is not possible, you can appeal to the planning Inspectorate using the following link:
if making an appeal, you must do so before the date the enforcement notice comes into effect
I hope the above is of some assistance but if you have any further questions, please revert to me