Call for Sites Form
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Land adjacent to 156 High Street Riseley Bedford MK441DR
Paddock
Houses
Houses
Open Countryside
Houses
7 retirement bungalows
Retirement bungalows for local people
10 to hectare
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Existing access is fine. A transport report is available.
7
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We are aware of the "Reducing UK emissions Progress Report to Parliament Committee on Climate Change", June 2020 and await The "Buildings and Heat Strategy", due later this year, which will take low-carbon heating from a niche market in the UK to the dominant form of new heating installation by the early-2030s. It should be supported by a national effort to improve the energy efficiency of UK buildings along with ensuring their safety and comfort as the climate warms. 1.0 Introduction 1.1 The government has introduced regulations to make new buildings more energy efficient. 1.2 All new dwellings require a calculation to demonstrate compliance with the current building regulations. This is carried out using a government established Standard Assessment Procedure (SAP). 1.3 The calculation is based on the energy balance taking into account a range of factors that contribute to energy efficiency: • Materials used for construction of buildings • Thermal insulation for the building fabric • Ventilation characteristics of the dwelling and ventilation equipment • Efficiency and control of the heating system(s) • Solar gains through openings of the dwelling • The fuel used to provide space and water heating, ventilation and light-ing • Renewable energy technologies 1.4 The SAP scale runs from 1 (poor) to 100 (excellent) and is based on estimated annual energy use for space heating, hot water, ventilation and internal fixed lighting. A SAP of 100 now represents zero energy cost for these items. It can be above 100 for dwellings that are not exporters. • Target Emission Rate (TER) 1.5 The TER is based on a notional dwelling of the same size and shape. The TER is estimated using a parallel SAP calculation base on the same dimensions as the proposed dwelling, but using a set of reference values for the building fabric and the heating systems etc. These reference values include ‘U’ values for main building elements that correspond to those required to meet the elemental method of compliance with Part L1 of the Building Regulations. • Dwelling Emission Rate (DER) 1.6 This is the estimated annual carbon dioxide emissions per square metre due to space heating, domestic hot water, ventilation and internal fixed lighting minus any carbon emissions saved by the generation of electricity. Within the DER calculation default is used for internal fixed lighting which cannot be changed, the DER is an output from the SAP calculation. • U-Value 1.7 The U-value describes how well a building element conducts heat. It measures the rate of heat transfer through a building element over a given area, under standardized conditions. The usual standard is at a temperature gradient of 24 °C, at 50% humidity with no wind (a smaller U-value is better). Fabric U-Values Element Average (W/m2K) Wall 0.26 Floor 0.22 Roof 0.14 Openings 1.47 2.0 Site Address 2.1 The development site is located at High Street Riseley, Site Location. 3.0 Description of Proposed Development 3.1 The proposal is for 6 retirement dwellings. 4.0 Building Regulations 4.1 The proposed dwellings will be designed to comply with the requirements of Part L1 of the Building Regulations and to that end all construction details will be selected to meet those requirements. 5.0 Site Analysis 5.1 Orientation is dictated by existing planning constraints and the site circumstances. 6.0 Energy Efficiency Assessment 6.1 A predicted carbon emissions statement has been calculated taking into consideration the design, layout and materials of the development. 7.0 Materials • Walls 7.1 The materials proposed for the external walls will be chosen to increase the efficiency of the proposed development. 7.2 The current Building Regulations u-value for external walls is 0.30w/m2k this proposal aims to have external walls that are 0.25w/m2k which is a 16% improvement. 7.3 This will contribute to better heating and energy efficiency. 7.4 The development has been designed with windows and doors openings to co-inside with frame dimensions to limit the amount of wasted materials. 7.5 The insulation this figure has been calculated on is based upon one similar to Kooltherm K10 Soffit Boards, which has a very low impact on the environment and is classified as Zero ODP. 7.6 The BRE green guide rating for such a wall is A+ • Ground Floor 7.7 Again the proposed materials for the ground floor will be chosen to increase the efficiency of the development. 7.8 The current building Regulations u-value for ground floor is 0.25w/m2k where as our proposals for the ground floor is 0.22w/m2k which is a 12% improvement. This will contribute to better heating and energy efficiency. 7.9 The BRE green guide rating for such a ground floor is B • Roof Insulation 7.10 The proposed materials for the roof insulation will be chosen to increase the efficiency of the development. 7.11 The current Building Regulations u-value for a roof is 0.16w/m2k where as our proposal for the roof is 0.14w/m2k which is a 12.5% improvement. This will contribute to better heating and energy efficiency. 7.12 The BRE green guide rating for the roof is A+ • Lighting 7.13 Lighting within the dwellings has been designed so that fittings are central in each room maximising the spread of light. 100% of the light fittings within the development (internal and external) will be energy efficient fittings providing a prediction of 45.98Wh/year saving. • Space Heating 7.14 The proposed boiler for the development is based upon one similar to Worcester Greenstar, Heatslave which provides hot water and heating. TRV’s will be installed away from a heat source. 7.15 This boilers efficiency is 90.3% which is 4% above the permitted efficiency. 7.16 Pipe work for the heating system will be insulated to increase efficiency. • Windows 7.17 The proposed windows and doors for the development have been selected to provide maximum efficiency, these are double glazed PCV-U units, air filled providing a u-value of 1.5w/m2k. 7.18 The full specification of the contribution will need to be refined and this statement demonstrates one way of achieving a carbon reduction. However the advice in the Council’s SPD, Climate Change and Pollution states: precise details of some of the matters to be covered in the sustainability statement, for example, construction materials may not be known at the planning stage, particularly, if an outline planning application is being submitted. 7.19 This is not an outline application however; it is an application where some of the construction materials are not be known at this stage. Once the principle of the development has been established it will be possible to provide full details of the construction materials in order that a further detailed assessment of the carbon reduction can be clarified. The paragraph in the SPD then goes on to mention: where it is appropriate to do, conditions may be used to ensure that features referred to in the sustainability statement are actually delivered as part of the development. 7.20 The SPD then lists a number of planning conditions and on page 39 a condition is listed for an energy audit for full applications of between 1 to 49 dwellings. It is considered that a planning condition would be both reasonable and necessary, and thereby accord with the Secretary of States’ advice and further would follow your own guidance in order that you can be satisfied that the objectives of policy CP26 can be achieved. 7.21 Nonetheless the submitted Sustainability and Energy Efficiency Statement demonstrates that a carbon reduction of 12% could be achieved by suggesting a number of specifications for the materials used in the construction, details of roof insulation, and suggestions of light positioning, space heating and details of windows. One option, and as suggested in the climate change and pollution SPD, would be to condition the levels of the technical details that are suggested in the sustainability statement in order for the LPA to be satisfied that a carbon reduction of around 12% could be achieved.
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The site is located on the east side of High Street in the village of Riseley, approximately 10.3 miles north of Bedford town centre. Access to the site is feasible via High Street via the southwest corner of the site. The High Street has moderate traffic congestion. The nearest bus stop is located approximately 50m south from the site entrance. There is no footway directly serving the site however there is a 1.5m footway on the other side of High Street. Cycling is possible on-road. An informal crossing point on High St to tie into the existing footway opposite the front of the site.
no noise concerns
The site has been excluded from further assessment at Stage 1 because its location is not in accordance with the development strategy.