Planning Services COMMITTEE REPORT
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Planning Services COMMITTEE REPORT APPLICATION DETAILS APPLICATION NO: 7/2010/0236 Installation of 3 No. 2 megawatt wind turbines and foundations and associated underground cables, FULL APPLICATION anemometer mast, crane, hard standings, access tracks, DESCRIPTION : temporary construction compound, switchgear house and ancillary infrastructure NAME OF APPLICANT : Wind Prospect ADDRESS : Land east of Spring Lane / Foxton Lane, Sedgefield ELECTORAL DIVISION : David Walker, Senior Planning Officer CASE OFFICER : 03000 261054, [email protected] DESCRIPTION OF THE SITE AND PROPOSALS Purpose of the report 1. This report concerns a detailed planning application, reference 7/2010/0236/DM for 3 wind turbines and associated works at land east of Spring Lane / Foxton Lane. 2. The applicant has lodged an appeal with the Planning Inspectorate because the Local Planning Authority has not determined the application within the statutory 16 week period. Once such an appeal is lodged, it is no longer possible for the application to be determined locally. The decision can only be made by an Inspector on behalf of the Secretary of State. 3. In order to defend the Local Planning Authority’s position at appeal, this report sets out the planning issues and asks that the County Planning Committee indicates what decision it would have been minded to make had it been able to do so. The Site 4. The application site is located on an area of agricultural land which stands to the east of spring lane / Foxton Lane approximately 1.7km to the south of Sedgefield and 0.8 km north of Foxton. 5. The proposed site is located in an area of undulating farmland adjacent to Shotton Beck The area consists of a number small farmsteads and clusters of residential properties with the settlements of Sedgefield to the north, Mordon to the west, Great Stainton and Elstob to the south west, Foxton, Bishopton and Stillington to the south and Thorpe Thewles and Thorpe Larches to the east. Stockton on Tees is approximately 6.5 km to the south east and Darlington approximately 10 km south west Darlington. 6. Butterwick Moor and the Walkway Wind Farms which in total consist of 17 turbines are located approximately 3.2km north east of Sedgefield and 5.0km north east of the nearest proposed turbine under consideration in this application. To the south planning permission has recently been granted by Stockton Borough Council for the erection of 4 turbines at Lamb’s Hill, Stillington which is approximately 0.8 km to the south. The Proposal 7. Wind Prospect are seeking planning permission for the installation of 3 wind turbines, associated access tracks, crane hard standings, a switchgear building and 69m high wind monitoring mast for a period of 25 years. A temporary construction compound is also proposed. 8. Access to the site for normal construction and maintenance traffic would be via the A689 along Station Road and West End onto Spring Lane. However, the proposed abnormal load access route to the site would be via the A689 north along the A177 onto B1278 and east onto Salters Lane leading onto Durham Road and Spring Lane. 9. The construction period for the proposed wind farm would be approximately 9 months with a 3 months decommissioning period. This would involve the widening of field access points, formation of passing places along Spring Lane / Foxton Lane, provision of on-site access tracks; and turbine foundations; electrical infrastructure installation; erection of turbine towers, nacelles and blades, site reinstatement and removal of temporary compounds. 10. The application boundary of the proposed development encompasses an area of approximately 53.7 hectares. However, following construction and re-instatement, the loss of land from agricultural use would be restricted to the footprint of each turbine, the crane hard standings, the access tracks, and the anemometry mast and switchgear house. These areas total approximately 1.66 hectares and would be required for the duration of the project lifespan of 27 years including construction, operation and decommissioning. Wind Turbines 11. Each turbine tower will be approximately 69m in height with a blade diameter of 82m. This would give an overall maximum height of 110m to blade tip (when the blade is in a vertical position). Each turbine would have 3 blades. Although the exact model of turbine would be decided following a tendering procedure the turbines proposed for the development would be capable of generating 2 Megawatt (MW) each, providing a total of 6MW on site. 12. The precise colour and finish of the wind turbines would be agreed with the local planning authority. It is anticipated that they would be mid-grey in colour with a semi- matt surface finish so as to minimise potential for reflection. 13. A detailed geotechnical survey would be undertaken to establish the most appropriate foundation detail, however, it is anticipated that a 16m diameter x 2m thick reinforced concrete foundation would be constructed on top of engineering fill. The upper surface of each base would finish approximately at ground level with the central pedestal extending 1.5m above existing ground level to receive the bottom tower section. Crane Hard Standing 14. An area of hard standing of approximately 50m x 25m would be required adjacent to each turbine position in order to accommodate the cranes required for turbine installation and maintenance. The exact arrangement of the crane hard standing would be modified to suit the specific requirements of each turbine and surrounding topography. The crane hard standings would be retained throughout the operational life of the wind farm. Temporary Construction Compound 15. A temporary construction compound of approximately 50m x 75m would be provided for the storage of materials, plant and equipment as well as providing welfare and office facilities for staff engaged in constructing the wind farm. Most of the compound would be removed on completion of the windfarm (apart from a small area needed for the switchgear house) and the land reinstated. Switchgear House 16. A single storey electrical switchgear house of approximately 10m x 8m, with a height of 6m and foundations to a depth of at least 1m would be constructed on the site. However, the exact dimensions of the building would be dependent upon the specific requirements of the local Distribution Network Operator. Anemometry Mast 17. A 69m wind anemometry mast would be erected on-site to provide necessary information for the control and monitoring of the wind turbines. This would be of lattice form and would be retained throughout the operating life of the development. Internal Access Tracks 18. A series of internal access tracks would be required to facilitate this development. The new tracks would follow field boundaries where possible, to minimise any impact to future farming operations and minimise land take A total of 1.6km of internal access tracks would be required to access the three turbines. Each access track would be a minimum of 5m wide and would lead to the hard standing adjacent to each turbine. 19. All access tracks would be retained throughout the operational life of the wind farm to allow periodic access for maintenance of the turbines. Decommissioning 20. The wind turbines have been designed with an operational life of 25 years . Once installed, the turbines will operate automatically, responding to changes in both wind speed and direction. At the end of the operational life of the wind farm, a decision would be taken whether to replace the turbines or remove them from the site and reinstate the land. Replacement of the wind turbines at this time would require a future planning application. Amendments 21. As a result of issues raised during the initial consultation exercise a suite of additional information was submitted by the applicant. These measures included: the resiting of Turbines 1 and 2; revised crossing arrangements of Shotton Beck; detailed access review; revised habitat enhancement proposals; arboricultural and ecological assessment of proposed works to trees and hedgerows along Spring Lane / Foxton Lane; suggested methodology relating to structural surveys of vulnerable properties adjacent to proposed access route; access review; Archaeological Evaluation undertaken; additional Protected Species Survey undertaken; and, additional Landscape and Visual Impact Assessment carried out. 22. Following the issuing of a screening opinion and subsequent scoping report, an Environmental Impact Assessment (EIA) has been carried out in accordance with the Town and Country Planning (Environmental Impact Assessment) (England and Wales) Regulations 1999 (as applicable at time of submission), As such, an Environmental Statement (ES) accompanies the planning application. The ES provides information in relation to landscape and visual assessment, cultural heritage, biodiversity, noise and shadow flicker, Socio-economics, transport, telecommunications and aviation. 23. The application is also accompanied by a Design and Access Statement, a Planning Statement and a Statement of Community Involvement, Tree Survey, Access Review and Landscape and Visual Impact Assessment. 24. This application is reported to Committee as the application represents a major development. PLANNING HISTORY 25. The original farm stead at Heley House consisting of Heley House and Heley House Cottage has been the subject of two planning applications. One related to the erection of a modern agricultural building whilst the other sought to convert