Sutherland Stormwater Conditions

33. Tree protection measures The following condition applies to all trees on the subject site, trees on the adjoining sites (which are potentially affected by the development works), as well as trees on the adjoining Council land that are not approved for removal. This includes Trees 16, 19, 31 - 35 and 37 which are located within close proximity to the proposed building, paths or the car parking areas. Prior to the commencement of any demolition, excavation or construction works on site the applicant must engage a suitably qualified and experienced Supervising Consulting Arborist to oversee the measures for the protection of existing trees as listed below. Note: A Consulting Arborist is a…

5. Approved plans and supporting documentation Development must be carried out in accordance with the following approved plans and documents, except where the conditions of this consent expressly require otherwise. Approved plans Plan Revision Plan title Drawn by Date of plans number number DA-1003 2 Proposed Staging Plan Fulton Trotter Architects 28/01/2025 DA13/1167 - Issue for Section 4.17 EX-101 J Existing & Demolition Site Fulton Trotter Architects 05/02/2025 Plan EX-102 J Existing & Demolition Fulton Trotter Architects 05/02/2025 External Works Plan 01 EX-103 I Existing & Demolition Fulton Trotter Architects 05/02/2025 External Works Plan 02 ACD-1001 05 Proposed Site Plan Fulton…

Principal certifier means the certifier appointed as the principal certifier for building work or subdivision work under section 6.6(1) or 6.12(1) of the EP&A Act respectively. Site work means any work that is physically carried out on the land to which the development the subject of this development consent is to be carried out, including but not limited to building work, subdivision work, demolition work, clearing of vegetation or remediation work. Stormwater drainage system means all works and facilities relating to: • the collection of stormwater, • the reuse of stormwater, • the detention of stormwater, • the controlled release of stormwater, and • connections to easements and public…

35. Sydney Water requirements Prior to the commencement of any works on site, including demolition or excavation, the plans approved as part of the construction certificate must also be approved by Sydney Water. Furthermore, Sydney Water has strict requirements for swimming pools / spas discharging to a pressure or vacuum sewer system. Sydney Water will determine if sewer, water or stormwater mains or easements will be affected by any part of your development. Customers will receive an approval receipt which must be included in the construction certificate documentation. Please refer to the web site <www.sydneywater.com.au>. DA25/0286 PAGE 14 Condition reason: To ensure the development is…

35. Sydney Water requirements Prior to the commencement of any works on site, including demolition or excavation, the plans approved as part of the construction certificate must also be approved by Sydney Water. Furthermore, Sydney Water has strict requirements for swimming pools / spas discharging to a pressure or vacuum sewer system. Sydney Water will determine if sewer, water or stormwater mains or easements will be affected by any part of your development. Customers will receive an approval receipt which must be included in the construction certificate documentation. Please refer to the web site <www.sydneywater.com.au>. Condition reason: To ensure the development is adequately serviced…

8. Erosion and sediment control plan Before site work commences, an erosion and sediment control plan must be prepared by a suitably qualified person in accordance with the following documents: a) the guidelines set out in ‘Managing Urban Stormwater: Soils and Construction’ prepared by Landcom (the Blue Book) (as amended from time to time), and b) the ‘Guidelines for Erosion and Sediment Control on Building Sites’ (Department of Planning, Housing and Infrastructure)(dated 2024, as amended from time to time). Condition reason: To ensure no substance other than rainwater enters the stormwater system and waterways

8. Erosion and sediment control plan Before site work commences, an erosion and sediment control plan must be prepared by a suitably qualified person in accordance with the following documents: a) the guidelines set out in ‘Managing Urban Stormwater: Soils and Construction’ prepared by Landcom (the Blue Book) (as amended from time to time), and b) the ‘Guidelines for Erosion and Sediment Control on Building Sites’ (Department of Planning, Housing and Infrastructure)(dated 2024, as amended from time to time). Condition reason: To ensure no substance other than rainwater enters the stormwater system and waterways

32. Erosion and sediment controls in place Before any site work commences, the principal certifier OR council (where a principal certifier is not required), must be satisfied the erosion and sediment controls in the erosion and sediment control plan are in place. These controls must remain in place until any bare earth has been restabilised in accordance with ‘Managing Urban Stormwater: Soils and Construction’ prepared by Landcom (the Blue Book) (as amended from time to time). Condition reason: To ensure sediment laden runoff and site debris do not impact local stormwater systems and waterways.

71. Completion of engineering works Certification from an appropriately qualified engineer to the effect that the completed Internal driveway, car parking, stormwater infrastructure, suction outlet for firefighting system and stormwater treatment required by this consent have been completed to their satisfaction, in accordance with the development consent and any relevant Australian Standards. DA24/0346 PAGE 22 A copy of this certification must accompany any occupation certificate application. Condition reason: Ensure engineering works are constructed in accordance with the approved plans.

31. Erosion and sediment controls in place Before any site work commences, the principal certifier must be satisfied the erosion and sediment controls in the erosion and sediment control plan are in place. These controls must remain in place until any bare earth has been restabilised in accordance with ‘Managing Urban Stormwater: Soils and Construction’ prepared by Landcom (the Blue Book) (as amended from time to time). Condition reason: To ensure sediment laden runoff and site debris do not impact local stormwater systems and waterways.

13. Erosion and sediment controls in place Before any site work commences, the certifier must be satisfied the erosion and sediment controls in the erosion and sediment control plan are in place. These controls must remain in place until any bare earth has been restabilised in accordance with ‘Managing Urban Stormwater: Soils and Construction’ prepared by Landcom (the Blue Book) (as amended from time to time). Condition reason: To ensure sediment laden runoff and site debris do not impact local stormwater systems and waterways.

13. Erosion and sediment controls in place Before any site work commences, the certifier must be satisfied the erosion and sediment controls in the erosion and sediment control plan are in place. These controls must remain in place until any bare earth has been restabilised in accordance with ‘Managing Urban Stormwater: Soils and Construction’ prepared by Landcom (the Blue Book) (as amended from time to time). Condition reason: To ensure sediment laden runoff and site debris do not impact local stormwater systems and waterways.

66. Completion of engineering works A certification from an appropriately qualified engineer to the effect that the completed Internal driveway and stormwater drainage required by this consent have been completed to their satisfaction, in accordance with the development consent and any relevant Australian Standards. A copy of this certification must accompany any occupation certificate application. Condition reason: Ensure engineering works are constructed in accordance with the approved DA25/0286 PAGE 22 plans.

3. Erosion and sediment mitigation devices are to be erected in a manner consistent with current Best Management Practice (i.e. Managing Urban Stormwater: Soils and Construction 4th Edition Landcom, 2004) to prevent entry of sediment into the waterway prior to any earthworks being undertaken. These are to be maintained in good working order for the duration of the works and subsequently until the site has been stabilised and the risk of erosion and sediment movement from the site is minimal;

3. Erosion and sediment mitigation devices are to be erected in a manner consistent with current Best Management Practice (i.e. Managing Urban Stormwater: Soils and Construction 4th Edition Landcom, 2004) to prevent entry of sediment into the waterway prior to any earthworks being undertaken. These are to be maintained in good working order for the duration of the works and subsequently until the site has been stabilised and the risk of erosion and sediment movement from the site is minimal;

15. Sydney Water requirements & section 73 compliance certificate Prior to the commencement of any works on site, including demolition or excavation, the plans approved as part of this consent must also be approved by Sydney Water. This allows Sydney Water to determine if sewer, water or stormwater mains or easements will be affected by any part of your development. Please refer to the web site <www.sydneywater.com.au>. Condition reason: To ensure the development is adequately serviced.

15. Sydney Water requirements & section 73 compliance certificate Prior to the commencement of any works on site, including demolition or excavation, the plans approved as part of this consent must also be approved by Sydney Water. This allows Sydney Water to determine if sewer, water or stormwater mains or easements will be affected by any part of your development. Please refer to the web site <www.sydneywater.com.au>. Condition reason: To ensure the development is adequately serviced.

67. Sustainability Commitments The sustainability provisions contained within Table 3 of the Statement of Environmental Effects prepared by Planning Ingenuity (dated 21 May 2025) must be incorporated into the development and validated by a suitably qualified consultant prior to the issue of the Occupation Certificate. Condition reason: To ensure sustainability initiatives such as rainwater tank, solar panels etc be implemented into the development. OCCUPATION AND ONGOING USE Condition

1. Council’s relevant development control plan, 2. the guidelines set out in ‘Managing Urban Stormwater: Soils and Construction’ prepared by Landcom (the Blue Book) (as amended from time to time), and 3. the ‘Guidelines for Erosion and Sediment Control on Building Sites’ (Department of Planning, Housing and Infrastructure) (dated 2024, as amended from time to time). Condition reason: To ensure no substance other than rainwater enters the stormwater system and waterways.

19. Implementation of the site management plans While site work is being carried out: 1. the measures required by the construction site management plan and the erosion and sediment control plan must be implemented at all times, and 2. a copy of these plans must be kept on site at all times and made available to council officers upon request. Condition reason: To ensure site management measures are implemented during the carrying out of site work.

40. Implementation of the site management plans While site work is being carried out: 1. the measures required by the construction site management plan and the erosion and sediment control plan must be implemented at all times, and 2. a copy of these plans must be kept on site at all times and made available to council officers upon request. Condition reason: To ensure site management measures are implemented during the carrying out of site work.

40. Implementation of the site management plans While site work is being carried out: 1. the measures required by the construction site management plan and the erosion and sediment control plan must be implemented at all times, and 2. a copy of these plans must be kept on site at all times and made available to council officers upon request. Condition reason: To ensure site management measures are implemented during the carrying out of site work.

74. Maintenance of wastewater and stormwater treatment device During occupation and ongoing use of the building, all wastewater and stormwater treatment devices (including drainage systems, sumps and traps, and on-site detention) must be regularly maintained to remain effective and in accordance with any positive covenant (if applicable). Condition reason: To protect sewerage and stormwater systems. DA24/0346 PAGE 23

68. Maintenance of wastewater and stormwater treatment device During occupation and ongoing use of the building, all wastewater and stormwater treatment devices (including drainage systems, sumps and traps, and on-site detention) must be regularly maintained to remain effective and in accordance with any positive covenant (if applicable). Condition reason: To protect sewerage and stormwater systems.

18. Engineering design certification Certification from an appropriately qualified engineer to the effect that the design requirements of internal driveway and stormwater have been met. A copy of this certification must accompany any construction certificate application. Condition reason: Ensure the engineering design complies with Australian Standards and council's DCP.

19. Drainage design - detailed requirements Before issue of a construction certificate, the stormwater drainage system must be designed in accordance with the approved stormwater drainage design drawing; Australian Standard AS 3500.3:2015; and Sutherland Shire Environmental Specification - Stormwater Management. Except where modified by the following:

23. Drainage design - detailed requirements Before issue of a construction certificate, the stormwater drainage system must be designed in accordance with the approved stormwater drainage design drawing; Australian Standard AS 3500.3:2015 and Sutherland Shire Environmental Specification - Stormwater Management. Except where modified by the following:

12. Erosion and sediment control plan Before the issue of a construction certificate or before site work commences, an erosion and sediment control plan must be prepared by a suitably qualified person in accordance with the following documents and provided to the certifier OR council (where a certifier is not required):

2. Construction / installation of stormwater drainage. The principal certifier must be informed of the supervising engineer’s name and contact details, in writing, prior to the commencement of any construction works. Condition reason: Ensure engineering works are constructed in accordance with the approved plans.

3. Rainwater harvesting and reuse. The principal certifier must be informed of the supervising engineer’s name and contact details, in writing, prior to the commencement of any construction works. Condition reason: Ensure engineering works are constructed in accordance with the approved plans.

24. Design of structures adjoining drainage easements Before issue of a construction certificate, the structural integrity of both the stormwater pipeline within the easement and any structure adjoining the easement are maintained, the built form must be designed as follows:

7. Erosion and sediment control plan Before the issue of a construction certificate or before an erosion and sediment control plan must be prepared by a suitably qualified person in accordance with the following documents and provided to the certifier:

6. Erosion and sediment control measures which are to be implemented during demolition and methods to prevent material being tracked off the site onto surrounding roadways

6. Erosion and sediment control measures which are to be implemented during demolition and methods to prevent material being tracked off the site onto surrounding roadways

3. A stormwater treatment device must be designed in accordance with Councils WSUD/Water Quality requirements. Condition reason: Ensuring suitable drainage is provided.

2. Construction / installation of stormwater drainage.