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Council Approval for a Knock-Down Rebuild in NSW | StraightLine Planning

Writer's picture: Mikal JensenMikal Jensen

Required Documents for Development Application: Residential Development – Knock-Down Rebuild of a New Residential Dwelling


When submitting a Development Application (DA) for a knock-down rebuild project, councils require a comprehensive set of documents addressing the process and complexities of demolishing an existing structure and constructing a new residential dwelling.





These projects demand careful planning to address site preparation, environmental impacts and alignment with surrounding properties.



Knock down rebuild new home


Statement of Environmental Effects (SEE)


The Statement of Environmental Effects (SEE) is a crucial document that assesses the environmental and social implications of both demolition and new construction.


For knock-down rebuilds, this includes evaluating potential impacts such as noise, dust and waste during demolition, as well as the visual effect of the new dwelling on the local area.


The SEE must also address specific factors like the site’s proximity to neighbouring properties, measures to mitigate community impact, and compatibility with the area’s character.


Demolition Plan


A Demolition Plan is essential for ensuring the safe and efficient removal of the existing structure.


This document outlines the demolition process, waste disposal methods and protective measures, such as temporary fencing or noise barriers to safeguard neighbouring properties and the public.


Councils require this plan to confirm that the demolition phase will be managed responsibly and with minimal disruption.



demolition of home


Site Analysis and Design Report


The Site Analysis and Design Report highlights the existing conditions of the property and demonstrates how the new dwelling fit harmoniously within its surroundings.


This report includes details about topography, site orientation and natural features like trees or waterways that may influence the design.


The design section ensures the new structure complies with local planning controls, addressing aspects such as height, setbacks, and overall aesthetics.


Survey Plan


A Survey Plan provides precise measurements of the site, including property boundaries, topography and any easements or restrictions that could affect construction.


For knock-down rebuilds, this plan identifies the existing structure’s location and the proposed footprint of the new dwelling, ensuring compliance with zoning rules and setback requirements.


Landscape Plan


The Landscape Plan provides details on how outdoor spaces will be designed and integrated with the new dwelling.


This includes plant selection, tree retention or removal, and outdoor features like garden beds, patios or pathways.


Councils assess this plan to ensure it enhances the property’s appearance, supports local biodiversity, and meets green space requirements.



landscape plan


Stormwater and Drainage Management Plan


A Stormwater and Drainage Management Plan ensures effective handling of rainwater on-site to prevent flooding and soil erosion.


This document typically includes strategies for water collection, treatment and disposal, such as installing retention basins, rainwater tanks or swales.


Councils use this plan to confirm that the site can manage stormwater sustainably and comply with local regulations.


Erosion and Sediment Control Plan


An Erosion and Sediment Control Plan is vital for sites involving significant clearing or excavation. It outlines measures like silt fences or sediment basins to prevent soil erosion and manage runoff during demolition and construction.


This ensures the project does not negatively impact nearby waterways or soil quality.


Additional Requirements


Depending on the site’s location and specific characteristics, councils may request additional documents to address unique challenges.


  • Bushfire Assessment Report: Required for properties in bushfire-prone areas to evaluate risks and recommend mitigation measures like fire-resistant materials or defensible zones.

  • Geotechnical Report: Necessary for sites with unstable soils or slopes to ensure structural safety through reinforced foundations or retaining walls.

  • Arborist Report: Evaluates significant trees on the site, advising on preservation, removal, and protection during construction.

  • Acoustic Report: Addresses potential noise impacts, particularly in sensitive areas or for developments involving noisy equipment.

  • Heritage Impact Statement: Required for projects in heritage areas to ensure designs respect the historical character of the site and its surroundings.

  • Flood Risk Assessment: Essential for flood-prone areas to mitigate risks through elevated construction or enhanced drainage systems.

  • Sustainability Report: Highlights environmentally friendly features, including energy efficiency, water conservation, and sustainable materials, demonstrating a commitment to reducing the dwelling’s ecological footprint.

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