A local government exercising power under s 170(3)(b) of the Planning and Development Act 2005 (WA) may impose conditions requiring defects liability periods, performance bonds, and certificates of compliance in respect of subdivisional road works, provided such conditions are imposed for the purpose of ensuring that the construction and drainage of roads is consistent with the Commission's approval, including subdivisional conditions. The authorised purpose under s 170(3)(b) directs attention to the Commission's approval rather than to the developer's submitted drawings and specifications. The discretionary power is subject to an implied requirement of reasonableness.
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