Can a garden wall be rebuilt in the same position?
Possibly, but the reason for replacement, foundation condition and intended function need checking. Repeating the old dimensions does not confirm the old construction was suitable. Provide photographs and any information about damage so the proposed work can address the actual circumstances.
Can a garden building be positioned tight against another structure?
That position needs assessment of both structures, relevant restrictions, drainage and access for construction and future care. A small gap may be difficult to inspect or maintain even when the footprint fits on a drawing. Explain the intended use and provide views of the adjoining structure. Agree a workable relationship before choosing the final dimensions; placing the new wall close to an old one does not establish that the old building can support it.
What distinguishes a repair from cosmetic covering?
A repair should address an assessed defect within a defined scope. Changing the surface appearance does not demonstrate that an underlying problem has been resolved.
Does rebuilding in the same position remove the need for checks?
No. Existing location does not prove that the proposed replacement is suitable or that all permissions and boundary issues are settled. The new height, use, construction and property context still matter. Provide any relevant records, and confirm the requirements with the appropriate authority or adviser. A like-for-like description should identify what is actually being retained and what is changing.