460Construction of private drains through adjoining premises
(1)Where, in the opinion of the council, the only practical route of any new private drain is through 1 or more adjoining premises, and any owner or owners of any of those premises will not consent to its construction, the council may, pursuant to a resolution in that behalf, of which notice shall be given to the owner or owners withholding his or their consent as aforesaid, enter upon his or their premises and execute, provide, and do all or any of the works, materials, and things which the council considers necessary, in order that the drain shall be laid in an efficient manner.
(2)Before passing a resolution under subsection (1), the council shall give to every owner refusing his consent as aforesaid an opportunity to be heard before a committee of the council.
(3)The cost incurred by the council in carrying out the said work, including the payment of compensation for injurious affection to any premises through which the drain is laid, shall be payable by the council in the first instance, and may be recovered by it from the owner of the land to be served by the private drain; and section 465 shall apply with respect to the amount so recoverable as if it were an advance made by the council under section 463.
(4)If agreement cannot be reached between the council and any claimant for any such injurious affection, the matter shall be determined as if the work were a public work and the claim were a claim for injurious affection in respect thereof under the Public Works Act 1981.
根据以上法规，如果走你们家地下是对方唯一的方案，建议和对方协商一下吧。造成损失可以和对方在聆听会中提出。