SEPP 65 - Apartment Design Guide

04 I BuildingpODium Acts AsA nOise shielDbalconiesWhen considering balconies in building design it isimportant to note that the standard jutting balconymay act to reflect noise directly into the interior ofthe building as illustrated in the figure 3.5.4T Noise and pollutionIt should be noted that although balconies shouldbe located away from a road, where this occurs onthe southern side of a development it may result inspace that is not used and that is of low amenity.Where balconies are required, solid balustrades withProperties located near sound major absorption roads, rail material lines added and to the underside ofbalconies above is a good means of reducing noisebeneath flight paths can be subject to noise and poor airentering the building.quality. Similarly, hostile and noisy environments such asindustrial areas, substations Providing or enclosed sports stadiums balconies can (or winter have gardens)is another means of reducing the noise enteringimpacts on residential amenity. Careful design solutionsa building. Where enclosed balconies are usedcan help to improve quality ventilation of life may in affected need to be apartments considered. By installingby minimising potential acoustic noise and louvres pollution ventilation impacts. requirements and reducednoise can be addressed. These approaches are shownin figure 3.6.This section addresses design responses on sites that areaffected by significant figure noise 3.5: and Balcony pollution treatments sources. Sectionwhich reduce traffic noiseAs below + higher4S Acoustic Privacy deals intrusion with more typical residentialsolid balustradedevelopments that do not face these challenges.Closed solid balustradewith sound adsorptionto balcony soffitClosed solidbalustradeStandard openBalustradeThick solid wall withfewer penetrationsfigure 3.6: Enclosablebalconies facing theroadSOURCELouvres open formaximum naturalventilationLouvres partlyopen for naturalventilation withsome noisepenetrationLouvres closedto reduce noisepenetrationENCLOSEDBALCONIESWITH OPENABLEACOUSTIC/ GLASSLOUVRES FORFLEXIBILITYFigure 4T.2 Enclosing balconies to function as ‘wintergardens’ is aneffective means of reducing road and rail noise(Source: Development Near Rail Corridors And Busy Roads –Interim Guideline, NSW)December 2008 Development near Rail Corridors and Busy Roads – Interim GuidelinePart C: Noise and Vibration 253.8. podiums, balconies and courtyardspodiumsfigure 3.3: Podiums actingas partial noise shields forresidential apartmentsFigure 4T.1Traffic noise can be substantially reduced by buildingresidential apartments on top of a podium orThis mixed use development commercial is located on building a busy road space. and If is the residential towerdesigned with limited openings is exposed set back to the the podium noise source acts to provide increaseddistance from the road thus shielding noise fromthe road to the lower apartments (see figures 3.3and 3.).figure 3.: Example ofcommercial podium withresidential apartmentsaboveAlternative SolutionsAlternative solutions to the requirements for:Apartmentsprotected fromnoise by podiumbelow• solar and daylight access• private open space and balconies and• natural cross ventilationpODium Acts AsA nOise shielDmay be proposed to achieve appropriatedesign solutions on sites that are constraineddue to noise and pollution.balconiesFigure 4T.3When considering balconies in building design it isimportant to note that the standard jutting balconymay act to reflect noise directly into the interior ofthe building as illustrated in the figure 3.5.Setting back the residential component on a podium helpsshielding apartments from major noise (Source: DevelopmentNear Rail Corridors And Busy Roads – Interim Guideline, NSW)It should be noted that although balconies shouldbe located away from a road, where this occurs onthe southern side of a development it may result inspace that is not used and that is of low amenity.120 DRAFT | Apartment Design Guide Where I September balconies 2014are required, solid balustrades withsound absorption material added to the underside ofbalconies above is a good means of reducing noiseentering the building.figure 3.6: Enclosablebalconies facing theroad