# The Helios Renewable Energy Project Order 2025, Paragraph 3: Detailed design approval


(1) No phase of the authorised development may commence until details of—
(a) the layout;
(b) scale;
(c) proposed finished ground levels;
(d) external appearance;
(e) hard surfacing materials;
(f) vehicular and pedestrian access, parking and circulation areas;
(g) refuse or other storage units, signs and lighting;
(h) drainage, water, power and communications cables and pipelines;
(i) programme for landscaping works;
(j) fencing;
(k) security measures; and
(l) any mitigation measures necessary to address noise impacts.
relating to that phase have been submitted to and approved in writing by the local planning authority.
(2) The details submitted must accord with—
(a) the location and order limits plan;
(b) the works plans;
(c) the principles and assessments set out in the environmental statement; and
(d) the outline design principles document.
(3) The authorised development must be carried out in accordance with the approved details.

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Source: https://www.legislation.gov.uk/uksi/2025/1372/schedule/2/paragraph/3 (the official version)
Page: https://openlegislation.uk/helios-renewable-energy-project-order-2025/schedule-2/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.