# The A303 Sparkford to Ilchester Dualling Development Consent Order 2021, Paragraph 12: Detailed design

Extent: E+W

(1) No part of the authorised development is to commence until the detailed design of that part has, after consultation with the Defence Infrastructure Organisation, the relevant planning authority and local highway authority on matters related to their functions, been approved in writing by the Secretary of State.
(2) The details to be approved under this requirement must include—
(a) plans, with annotations where required, showing the limits of responsibility for the operational maintenance of any work and which person or body is responsible for maintaining any part;
(b) a signage strategy for the authorised development, including two information boards in the vicinity of the authorised development and which are accessible by the public to set out the history of the road; and
(c) the width and limitations of any public rights of way which are created or altered by this Order.
(3) Where protective works under article 21 are required to a listed building within the meaning of the Planning (Listed Buildings and Conservation Areas) Act 1990 , and such works would cause or require to be caused permanent change or alteration of the listed features in any manner which would affect its character as a building of special architectural or historic interest, the protective works must be set out in the detailed design submitted under sub-paragraph (1) and consultation on the relevant details must be undertaken with the Historic Buildings and Monuments Commission for England in addition to the bodies listed in sub-paragraph (1).
(4) Following approval of detailed design under sub-paragraph (1), the undertaker may, after further consultation with the relevant planning authority and local highway authority on matters related to their functions, submit in writing amended detailed design for any part of the authorised development to the Secretary of State.
(5) The details to be approved under sub-paragraph (1) or any subsequent amendment of those details approved under sub-paragraph (4) may depart from the preliminary scheme design shown on the works plans and the engineering section drawings only where the Secretary of State is satisfied that departures from the preliminary scheme design would not give rise to any materially new or materially different environmental effects in comparison with those reported in the environmental statement.
(6) Where amended details are approved by the Secretary of State under sub-paragraph (1), those details are deemed to be substituted for the approved details, corresponding works plans or engineering section drawings and the undertaker must make those amended details available in electronic form for inspection by members of the public and must be notified by means of electronic transmission to the Environment Agency, the local highway authority, the relevant planning authority, and where works relate to the Hazlegrove House Registered Park and Garden, the Historic Buildings and Monuments Commission for England.

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Source: https://www.legislation.gov.uk/uksi/2021/125/schedule/2/paragraph/12 (the official version)
Page: https://openlegislation.uk/a303-sparkford-to-ilchester-dualling-development-consent-order-2021/schedule-2/paragraph-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.