Water Industry, Wales Title and commencement 1 1 The title of this Order is the Sustainable Drainage (Approval and Adoption) (Wales) Order 2018. 2 This Order comes into force on 7 January 2019. Interpretation 2 1 In this Order, “ Schedule 3 ” (“ Atodlen 3 ”) means Schedule 3 to the Flood and Water Management Act 2010. 2 In this Order unless otherwise stated, a reference to “ construction work ” is to be construed as a reference to construction work which has drainage implications . 3 For the purposes of this Order, “planning permission” means planning permission under the Town and Country Planning Act 1990 but does not include those permitted developments which are granted planning permission either by virtue of a development order or a local development order in accordance with section 58(1)(a) of that Act. Construction work not to be treated as having drainage implications 3 1 Construction work which, but for this article would have drainage implications, is not to be treated as having drainage implications if it is carried out in the circumstances in paragraph (2). 2 The circumstances are where— a construction work is carried out by an internal drainage board in exercise of its functions under the Land Drainage Act 1991 ; b construction work is carried out for the purpose of, or in connection with, the construction of— i a road for which the Welsh Ministers are the highway authority; ii a railway by Network Rail. 3 In this article— “ highway authority ” (“ awdurdod priffyrdd ”) has the meaning given in section 1 of the Highways Act 1980 ; “ internal drainage board ” (“ bwrdd draenio mewnol ”) has the meaning given in section 1 of the Land Drainage Act 1991; “ Network Rail ” means Network Rail Infrastructure Limited (Company No. 02904587) whose registered office is at 1 Eversholt Street, London, NW1 2DN; “ railway ” (“ rheilffordd ”) has the meaning given in section 67(1) of the Transport and Works Act 1992 . Exceptions to requirement for approval: planning permission not required 4 1 Subject to paragraph (2), the requirement for approval under paragraph 7(1) of Schedule 3 does not apply to construction work where the construction work does not require planning permission. 2 The exception in paragraph (1) does not apply where the construction work involves the construction of a building or other structure covering an area of land of 100 square metres or more. 3 The requirement for approval under paragraph 7(1) of Schedule 3 does not apply to the developments under the following Parts of Schedule 2 to the Town and Country Planning (General Permitted Development) Order 1995 — a Part 3A (Temporary Building and Changes of Use for Public Health Emergency Purposes) ; b Part 12A (Emergency Development by Local Authorities) ; and c Part 37 (Emergency Development by the Crown) . Exceptions to requirement for approval: planning permission required 5 1 Subject to paragraph (2), the requirement for approval under paragraph 7(1) of Schedule 3 does not apply to any construction work in respect of which, before 7 January 2019— a planning permission was granted or deemed to be granted (whether or not subject to any condition as to a reserved matter), or b a local planning authority received a valid application for planning permission but by that date had not finally determined it. 2 The exception in paragraph (1) does not apply to construction work in respect of which planning permission was granted before 7 January 2019 if— a the grant was subject to a condition as to a reserved matter, and b an application for approval of the reserved matter is not made within the period of 12 months beginning with 7 January 2019. 3 For the purposes of this Order, a valid application for planning permission is received before 7 January 2019 if it is made before that date and complies with the Town and Country Planning (Development Management Procedure) (Wales) Order 2012 . 4 In this article— “ local planning authority ” (“ awdurdod cynllunio lleol ”) has the meaning given in section 1(1B) of the Town and Country Planning Act 1990 ; “ reserved matter ” (“ mater a gedwir yn ôl ”) has the meaning given in section 92(1) of that Act. Exceptions to requirement for approval: construction area less than 100 square metres 6 1 The requirement for approval under paragraph 7(1) of Schedule 3 does not apply where— a construction work involves— i the construction of a single dwelling house, and ii the area of land covered by the construction work is less than 100 square metres, or b in the case of any other type of construction work, the area of land covered by the construction work is less than 100 square metres. 2 This article applies whether or not planning permission is required for the construction work. Determining requests for adoption 7 1 The period within which an approving body for a drainage system must determine a request to adopt a drainage system is— a 8 weeks beginning on the first working day after it receives the request, or b any extended period agreed to by the approving body and developer before the end of the period in sub-paragraph (a). 2 An approving body which fails to determine a request within the period specified in paragraph (1) is deemed to have refused the request. 3 In this article— “ request to adopt ” (“ archiad i fabwysiadu ”) means a request pursuant to paragraph 23(2)(b) of Schedule 3; “ working day ” (“ diwrnod gwaith ”) means a day which is not a Saturday, Sunday, a bank holiday within the meaning of section 1 of the Banking and Financial Dealings Act 1971 , or other public holiday in Wales. Hannah Blythyn Minister for Environment under authority of the Cabinet Secretary for Energy, Planning and Rural Affairs, one of the Welsh Ministers