“adjoining owner” and “adjoining occupier” respectively mean any owner and any occupier of land, buildings, storeys or rooms adjoining those of the building owner and for the purposes only of section 6 within the distances specified in that section;
The gov.uk Guidance Note provides:
This is the person or company who is the freeholder or leaseholder of the adjoining property. Also for the purposes of section 6 of the Act, a property shall be deemed to be adjoining if it is within the relevant distance even if it is not actually adjoining.
It provides, further:
Essentially, an Adjoining Owner is anyone who is an owner of land, buildings or rooms adjoining those of the building owner, which may include the local authority.
Also, for the purposes of section 6 of the Act a property shall be deemed to be adjoining if it is within the relevant distance even if it is nor actually adjoining.
The adjoining property may have a freehold owner, or a leasehold owner all of whom may be an ‘Adjoining Owner’ under the Act. Where there is more than one owner of the property, or more than one adjoining property, it is your duty to notify all Adjoining Owners.