http://www.legislation.gov.uk/ukpga/1984/55/section/63Building Act 1984 An Act to consolidate certain enactments concerning building and buildings and related matters.1984-10-31texttext/xmlenStatute Law Database2026-03-06Expert Participation2026-01-27 Building Act 1984s. 131ABuilding Safety Act 2022s. 59s. 170(4)(c)Building Act 1984s. 95(5)Building Safety Act 2022s. 60(2)s. 170(4)(c)Building Act 1984s. 131BBuilding Safety Act 2022s. 60(3)s. 170(4)(c)Building Act 1984Sch. 1 para. 7A(4)Building Safety Act 2022Sch. 5 para. 83(5)s. 170(4)(b)(c)reg. 2(n)(xxxiii)reg. 2(d)(xi)Sch.reg. 348- 12Building Act 1984s. 44(11)Sustainable and Secure Buildings Act 2004s. 3(8)s. 11(3)Building Act 1984ActThe Building etc. (Amendment) (No. 2) (Wales) Regulations 2025Rheoliadau Adeiladu etc. (Diwygio) (Rhif 2) (Cymru) 2025reg. 21reg. 1(2)Building Act 1984s. 1(1A)(d)Infrastructure Act 2015s. 37(2)s. 57(5)(a)Building Act 1984Sch. 1 para. 7AInfrastructure Act 2015s. 37(4)s. 57(5)(a) Part III631If a water-closet, drain or soil pipe is so constructed or repaired as to be prejudicial to health or a nuisance, the person who undertook or executed the contruction or repair is liable on summary conviction to a fine not exceeding level 1 on the standard scale, unless he shows that the prejudice to health or nuisance could not have been avoided by the exercise of reasonable care.2A person charged with an offence under this section (hereafter in this section referred to as “the original defendant”) is entitled, upon information duly laid by him and on giving to the prosecutor not less than three clear days’ notice of his intention, to have any other person, being his agent or servant, to whose act or default he alleges that the offence was due brought before the court at the time appointed for the hearing of the charge; and—aif after the commission of the offence has been proved the original defendant proves that the offence was due to the act or default of that other person, that other person may be convicted of the offence, andbif the original defendant further proves that he used all due diligence to secure that the water-closet, drain or soil pipe in question was so constructed or repaired as not to be prejudicial to health or a nuisance, he shall be acquitted of the offence.3Where the original defendant seeks to avail himself of subsection (2) above—athe prosecutor as well as the person whom the original defendant charges with the offence has the tight to cross-examine the original defendant, if he gives evidence, and any witness called by him in support of his pleas, and to call rebutting evidence, andbthe court may make such order as it thinks fit for the payment of costs by any party to the proceedings to any other party to them.4In this section in its application to Greater London, a reference to a water-closet includes a reference to a urinal.