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Overshadowing and Loss of Light
4.3.20Belfast·SPG004 Residential Extensions and Alterations
Sunlight and daylight are valued elements in a good quality living environment. Natural daylight can reduce the need for electric lighting, and sunlight can contribute towards meeting some of the heat
dwellingexternal-spaceenergyEnergy efficiency enhancements in residential extensions and alterations
4.5.1–4.5.2Belfast·SPG004 Residential Extensions and Alterations
In planning an extension or alteration to a residential property, consideration should be given to how improvements in the environmental performance of the property and any new element(s) can be achie
dwellingenergyresidential-extensionsEnergy efficiency considerations for extensions and alterations
4.5.3Belfast·SPG004 Residential Extensions and Alterations
In considering the energy efficiency of extensions or alterations, it is important to fully consider the design and construction phases of the build and specifically how to get the most out of the fab
dwellingenergyTwo approaches to retrofitting existing properties
4.5.4Belfast·SPG004 Residential Extensions and Alterations
Retrofitting the existing property can be achieved via two approaches: i. Fabric First: An initial approach aimed at upgrading the building fabric (e.g. walls, lofts, floors); and ii. Whole House: A m
dwellingenergySpecific retrofitting measures for existing properties
4.5.5Belfast·SPG004 Residential Extensions and Alterations
Factors which may be considered in retrofitting the existing property can include, but are not limited to, the installation of: • Loft and/or wall insulation, including both cavity wall and internal/e
dwellingenergyglazingDesign factors for energy-efficient residential extensions
4.5.6Belfast·SPG004 Residential Extensions and Alterations
Additional factors which may be considered in the development of extensions to existing dwellings include: • Orientation and glazing: orientation and the amount of glazing will determine how much sunl
dwellingenergyglazingventilationThermal mass for energy efficiency
Belfast·SPG004 Residential Extensions and Alterations
Thermal mass: achieving a high thermal mass provides greater energy efficiency. Materials with a greater density, like bricks, are better heat storing materials. Higher density materials heat up slowl
energydwellingLightweight construction for carbon emissions reduction
Belfast·SPG004 Residential Extensions and Alterations
Light weight construction: recognising the benefits that lightweight construction, in the form of timber framed construction, can play in mitigating carbon emissions, opportunities to exploit this sys
energydwellingMicrogeneration equipment and other renewable technologies - General considerations
4.5.7Belfast·SPG004 Residential Extensions and Alterations
Microgeneration equipment and other renewable technologies offer a sustainable proposition when extending and/or altering a residential property. However, the suitability of specific equipment and tec
dwellingenergyPermitted development for domestic microgeneration equipment
4.5.8Belfast·SPG004 Residential Extensions and Alterations
The installation of certain domestic microgeneration equipment may be carried out as 'permitted development', provided specific rules are satisfied, as set out in the Planning (General Permitted Devel
dwellingenergySolar Photovoltaics and solar thermal equipment
4.5.9Belfast·SPG004 Residential Extensions and Alterations
Solar Photovoltaics (PV panels) and solar thermal equipment: PV panels use photovoltaic cells to capture sunlight which is directly converted to electricity. Solar thermal equipment use sunrays to gen
dwellingenergyBiomass heating system definition
Belfast·SPG004 Residential Extensions and Alterations
Biomass heating system: biomass systems are wood-fuelled heating systems, using pallets, chips or logs to provide warmth to a single room or to power central heating and hot water boilers.
dwellingenergyCombined heat and power (CHP) system definition
Belfast·SPG004 Residential Extensions and Alterations
Combined heat and power (CHP) system: a CHP system generates electricity and captures useable heat that is produced in the process
dwellingenergyGround or Water Source and Air Source Heat Systems
Belfast·SPG004 Residential Extensions and Alterations
Ground or water source and air source heat systems: ground or water source heat pumps extract heat from the ground or groundwater which can then be used as a source of heat for the home. An air source
dwellingenergyWind Power Systems
Belfast·SPG004 Residential Extensions and Alterations
Wind power: wind power systems use air-flow through wind turbines to generate electricity.
dwellingenergyMechanical Ventilation and Heat Recovery (MVHR) System
Belfast·SPG004 Residential Extensions and Alterations
Mechanical ventilation and heat recovery (MVHR) system: MVHR extracts stale air from moisture producing rooms (e.g. kitchens, bathrooms etc.) and supplies fresh air to habitable rooms (e.g. living roo
dwellingventilationenergyHeat recovery systems
Figure 4.25Belfast·SPG004 Residential Extensions and Alterations
Figure 4.25: Heat recovery system
dwellingenergyEnergy efficiency and renewable technologies in residential extensions
4.5.10Belfast·SPG004 Residential Extensions and Alterations
In promoting good design for residential extensions and alterations, the Council will encourage proposals which embrace energy efficiency and which satisfactorily incorporate microgeneration equipment
dwellingenergyresidential-extensionsBiodiversity benefits of green infrastructure
Belfast·SPG004 Residential Extensions and Alterations
reduce flood risk by slowing rainwater/storm runoff, cooling urban areas and increasing energy efficiency by offering solar and thermal protection. Biodiverse walls protect masonry from extreme temper
dwellingenergydrainageexternal-spaceMicrogeneration equipment and planning permission
17Belfast·SPG004 Residential Extensions and Alterations
Not all microgeneration equipment benefits from permitted development rights. It is necessary to consult the Planning (General Permitted Development) Order (Northern Ireland) 2015 to determine whether
dwellingenergy