A Flood Risk Assessment has been prepared in accordance with relevant guidance and policies and in consultation with stakeholders including the Environment Agency (EA).
The proposed development, including surface water attenuation features, will be located outside the Wootton Brook fluvial floodplain and therefore in the areas with the lowest risk of fluvial flooding.
The proposed primary access from Rowtree Road crosses the Wootton Brook floodplain and this, together with the surface water attenuation, will be designed in consultation with the EA to provide betterment, over and above the existing conditions, so as to reduce the risk of flooding.
A range of baseline ecological surveys were undertaken in 2012-13 with update surveys in Spring 2017. The proposal ensures that the development will be sympathetic to existing habitats and species. Important hedgerows will be retained to protect essential wildlife corridors and significant habitat creation and enhancement is proposed for the Wootton Brook corridor.
Legislation and planning policy require careful consideration of the potential effects of the proposed development on the setting of the Grade II* listed Church of St. Columba and the Collingtree Conservation Area, even though neither is situated within the site. Due care has been taken to review the original proposals and to re-design them to exclude the historic ‘ridge and furrow’ field to the south east of the development immediately adjacent to Collingtree village.
Primary vehicular access will be provided to the site via a new T-junction at Windingbrook Lane and a new compact roundabout junction at Rowtree Road. The proposed primary route linking these two junctions will ensure that the development is well connected, permeable and that a bus route is accessible to the development.
All of the proposed streets will fully comply with NCC’s highway specification and design standards. Following consultation with NCC, a comprehensive and detailed Transport Assessment was carried out that assessed the impact of the development traffic at numerous junctions. The Transport Assessment identified off-site highway and junction improvement works at several locations which will mitigate the impact of the traffic from the development, together with new off-site pedestrian and cyclist facilities.
The M1 motorway is a primary noise source located adjacent to the south-west site boundary. As a response, extensive earthworks are proposed as part of the development. At the south-west site boundary, a new earth bund will be constructed along the site boundary that will significantly raise the ground level along the central section of the boundary to enclose development at its more acoustically sensitive part. An acoustic fence will then be installed on top of the bund which will further reduce noise levels across the site.
The Masterplan has been designed such that new houses and the proposed school are substantially set back from the motorway to benefit from a reduction of noise over distance. In addition, development will be designed in an ‘outward facing’ orientation, whereby private gardens will be located behind houses, further protected by the acoustic screening from the properties themselves.