When the acquiring authority require to purchase any of the land subject to compulsory purchase, they shall give notice (hereafter in this Act referred to as a "notice to treat") to all the persons interested in, or having power to sell and convey or release, the land, so far as known to the acquiring authority after making diligent inquiry.
Every notice to treat—
For provision about notice of claims for compensation, see sections 4 and 4A of the Land Compensation Act 1961.
A notice to treat shall cease to have effect at the end of the period of three years beginning with the date on which it is served unless—
If the person interested in the land, or having power to sell and convey or release it, and the acquiring authority agree to extend the period referred to in subsection (2A) of this section, the notice to treat shall cease to have effect at the end of the period as extended unless—
Where a notice to treat ceases to have effect by virtue of subsection (2A) or (2B) of this section, the acquiring authority—
The amount of any compensation payable under subsection (2C) shall, in default of agreement, be determined by the Upper Tribunal.
Compensation payable to any person under subsection (2C) shall carry interest at the rate prescribed under section 32 of the Land Compensation Act 1961 from the date on which he was entitled to to be given notice under that subsection until payment.
Schedule 2 to this Act (which relates to absent or untraced owners) shall have effect for the purposes of this Act.