http://www.legislation.gov.uk/asc/2026/6/section/93Planning (Wales) Act 2026enStatute Law Database2026-06-16Expert Participation2026-04-28 PART 3PLANNING PERMISSIONCHAPTER 9EFFECT, DURATION AND IMPLEMENTATION OF PLANNING PERMISSIONDuration of planning permissionCondition about period within which development must start 93 1 Planning permission must be granted subject to the condition that the development to which it relates must start before the end of a period specified in the condition that begins with the day the permission is granted. 2 If planning permission is granted without the condition required by subsection (1), it is to be treated as having been granted subject to the condition that the development must start before the end of 5 years beginning with the day the permission was granted. 3 But if— a the planning permission granted without the condition required by subsection (1) is planning permission for the development of land without complying with conditions subject to which a previous planning permission was granted, and b the previous permission was subject to a condition specifying a period before the end of which development was required to start, the planning permission is to be treated as having been granted subject to the condition that the development to which it relates must start before the end of that period. 4 This section does not apply to— a planning permission granted by a development order or a local development order; b outline planning permission (but see section 94); c planning permission for development carried out before the grant of the permission; d planning permission granted for a limited period; e a minerals permission that is subject to a condition that minerals development must start before the end of a specified period after— i the completion of other development consisting of mining operations already being carried out by the applicant for the permission, or ii the cessation of depositing of mineral waste already being carried out by the applicant. 5 The fact that planning permission is subject to a condition by virtue of this section does not prevent the condition being the subject of an application under section 68 or an appeal under section 73. S. 93 not in force at Royal Assent, see s. 409(2)