(1)Where—
(a)any land comprised in a lease has been reinstated or redeveloped under this Act, or has otherwise been rendered fit in pursuance of an obligation imposed thereunder;
(b)the cost of reinstatement, of redevelopment or of rendering the land fit has been increased by reason of any damage or dilapidation occurring to the land, not being war damage or ordinary wear and tear; and
(c)the person by whom the land was reinstated, redeveloped or rendered fit would have been entitled, but for section one of this Act, to require any person, being his landlord or tenant under any lease comprising the land, to make good the said damage or dilapidation or any part thereof, or to indemnify him in respect of the cost of making good the said damage or dilapidation or any part thereof;
the first-mentioned person shall be entitled to recover from his said landlord or tenant the amount by which the said cost has been so increased, or, as the case may be, such part of the said increase as is attributable to the said part of the damage or dilapidation.
(2)Any person from whom any sum has been recovered under this section shall have the like right (if any) to recover that sum or any part thereof from any person, being his landlord or tenant under any lease comprising the land, as if he himself had reinstated, redeveloped or rendered fit the land.
(3)Nothing in this section shall be taken to affect any right in respect of money payable under a policy of insurance in respect of any such damage or dilapidation as aforesaid, or any right to damages for a failure to insure land in respect thereof, but any amount recovered by any person, or made available for the reinstatement, redevelopment or rendering fit of the land by any person, by virtue of any such right, shall be deducted from the amount recoverable by that person under this section in respect of that damage or dilapidation.