“ 35 Refund of VAT to persons constructing certain buildings (1) Where— ( a ) a person carries out works to which this section applies, ( b ) his carrying out of the works is lawful and otherwise than in the course or furtherance of any business, and ( c ) VAT is chargeable on the supply, acquisition or importation of any goods used by him for the purposes of the works, the Commissioners shall, on a claim made in that behalf, refund to that person the amount of VAT so chargeable. (1A) The works to which this section applies are— ( a ) the construction of a building designed as a dwelling or number of dwellings; ( b ) the construction of a building for use solely for a relevant residential purpose or relevant charitable purpose; and ( c ) a residential conversion. … (2) The Commissioners shall not be required to entertain a claim for a refund of VAT under this section unless the claim— ( a ) is made within such time and in such form and manner, and ( b ) contains such information, and ( c ) is accompanied by such documents, whether by way of evidence or otherwise, as the Commissioners may by regulations prescribe or, in the case of documents, as the Commissioners may determine in accordance with the regulations. … (4) The notes to Group 5 of Schedule 8 shall apply for construing this section as they apply for construing that Group but this is subject to subsection (4A) below.”
“(2) A building is designed as a dwelling or a number of dwellings where in relation to each dwelling the following conditions are satisfied— ( a ) the dwelling consists of self-contained living accommodation; ( b ) there is no provision for direct internal access from the dwelling to any other dwelling or part of a dwelling; ( c ) the separate use, or disposal of the dwelling is not prohibited by the term of any covenant, statutory planning consent or similar provision; and ( d ) statutory planning consent has been granted in respect of that dwelling and its construction or conversion has been carried out in accordance with that consent. … (16) For the purpose of this Group, the construction of a building does not include— ( a ) the conversion, reconstruction or alteration of an existing building; or ( b ) any enlargement of, or extension to, an existing building except to the extent the enlargement or extension creates an additional dwelling or dwellings; or ( c ) subject to Note (17) below, the construction of an annexe to an existing building. … (18) A building only ceases to be an existing building when: ( a ) demolished completely to ground level; or ( b ) the part remaining above ground level consists of no more than a single facade or where a corner site, a double facade, the retention of which is a condition or requirement of statutory planning consent or similar permission.”