| Conditions or Reasons: | 1)
The surface water drainage shall be constructed to manage surface water runoff from the development for up to and including 1 in 100 year event (+30%CC), via
attenuated discharge to an existing watercourse. The final detailed design shall be based on the agreed drawing (Ref: Robinson Hall, A 49408 2C, January 2023) and DEFRAs
Non-statutory technical standards for sustainable drainage systems (March 2018) and shall be implemented and maintained as approved. Maintenance will ensure the system functions as designed for the lifetime of the development. Any variation to the connections and controls indicated on the approved drawing which may be necessary at the time of construction would require the resubmission of those details to the Local Planning Authority for approval. The discharge rate from the development will be limited to the equivalent 1 in 1 year rate, or an appropriate rate as agreed by the Bedford Group of Internal Drainage
Boards.
The applicant should address the following points 1 to 5 when submitting details to discharge the condition.
1. We will require a SuDS maintenance and management plan including who is responsible for what.
2. Permeable block paving should be laid to CIRIA C768 'Guidance on the construction of SuDS' guidelines. This guidance also stipulates following Interlay guidance.
3. The Council does not, and is not required to, adopt any SuDS feature. It is the responsibility of the applicant to ensure that the surface water drainage system, in its
entirety, will be effectively maintained in the long-term. We therefore expect confirmation of the proposed arrangements for maintenance to be provided with the
final detailed design, including the future maintenance and operational needs and the responsible bodies for undertaking maintenance (for all public and private
drainage components).
4. The final detailed design including proposed standards of operation, construction, structural integrity and ongoing maintenance must be compliant with the
'Non-statutory technical standards for sustainable drainage systems' (March 2015, Ref: PB14308), 'Central Bedfordshire Sustainable Drainage Guidance' (Adopted
April 2014, Updated May 2015), and recognised best practise including the Ciria SuDS Manual (2016, C753).
5. Land drainage Consent under the Land Drainage Act 1991 must be secured to discharge surface water to an existing watercourse/ditch, and details of this provided
with the full detailed design. An easement should be provided on the developable side of the watercourse to allow for access for maintenance, this should be 9m but
may depend on the maintenance requirements considered appropriate.
Reason: To ensure the approved system will function to a satisfactory minimum standard of operation and maintenance and prevent the increased risk of flooding both on and off site, in accordance with CBC Local policy CC3 to CC5 and NPPF Paras 159 to 169 Inclusive of foot notes 54 to 56 and its supporting technical guidance. |
2)
No building/dwelling shall be put into use until the developer has formally submitted in writing to the Local Planning Authority a finalised 'Maintenance and
Management Plan' for the entire surface water drainage system, inclusive of any adoption arrangements and/or private ownership or responsibilities, and that the approved surface water drainage scheme has been correctly and fully installed as per the final approved details.
Reason: To ensure that the implementation and long term operation of a sustainable drainage system (SuDS) is in line with what has been approved, in accordance with Written Statement HCWS161, 18th December 2014. |
3)
All external works hereby permitted shall be carried out in materials to match as closely as possible in colour, type and texture, those of the existing building.
Reason: To safeguard the appearance of the completed development by ensuring that the development hereby permitted is finished externally with materials to match the existing building in the interests of the visual amenities of the locality.
(Section 12, NPPF) |
4)
The development hereby permitted shall not be carried out except in complete accordance with the details shown on the submitted plans, numbers: RS22/1875/A/6852/02, RS13/6179/S4091, 49408/2/E.
Reason: To identify the approved plan/s and to avoid doubt. |
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