Once the initial notice or a copy of it has been given in accordance with section 13 or Part II of Schedule 3 to the reversioner or to any other relevant landlord, that person and any person authorised to act on his behalf shall, in the case of—
in which he has a freehold or leasehold interest which is included in the proposed acquisition by the nominee purchaser, have a right of access thereto for the purpose of enabling him to obtain a valuation of that interest in connection with the notice or if it is reasonable in connection with any other matter arising out of the claim to exercise the right to collective enfranchisement.
Once the initial notice has been given in accordance with section 13, the nominee purchaser and any person authorised to act on his behalf shall have a right of access to—
where such access is reasonably required by the nominee purchaser in connection with any matter arising out of the notice.
A right of access conferred by this section shall be exercisable at any reasonable time and on giving not less than 10 days' notice to the occupier of any premises to which access is sought (or, if those premises are unoccupied, to the person entitled to occupy them).