The boundaries of the City of Sydney local government area (LGA) have shifted many times, increasingly since the mid-twentieth century. All of these changes have been decided by the NSW colonial or state governments of the time. Interactive map showing historic boundary changes More information on the historical boundaries of Sydney LGA.

Local Government Area (LGA) boundaries for Sydney and surrounds sourced from Data.gov.au. "Sydney and surrounds" is defined here for convenience as including the "Greater metropolitan Sydney" and "Sydney surrounds" regions listed in the Wikipedia article "Local government areas of New South Wales" accessed 30 September 2019 https://en.wikipedia.org/wiki/Local_government_areas_of_New_South_Wales. The digital Local Government Areas and their legal identifiers have been derived from the cadastre data from each Australian state and territory jurisdiction and are available below. Local Government Areas are part of the PSMA Administrative Boundaries dataset built and maintained by PSMA Australia, using authoritative government data, sourced from the state and territory government mapping agencies and land registries of Australia as well as from the Australian Electoral Commission and Australian Bureau of Statistics. The full PSMA Administrative Boundaries dataset contains boundaries in seven themes: Australian Bureau of Statistics (ABS) boundaries, electoral boundaries, state and territory boundaries, local government areas, suburbs/localities, wards and town points. For further information on Administrative Boundaries, including FAQs on the data, see: www.psma.com.au/products/administrative-boundaries or contact PSMA’s network of value added resellers and integrators that provide a range of commercial products based on Administrative Boundaries including software solutions, consultancy and support. Preferred attribution for the Licensed Material: Administrative Boundaries ©PSMA Australia Limited licensed by the Commonwealth of Australia under Creative Commons Attribution 4.0 International licence (CC BY 4.0). Preferred attribution for Adapted Material: Incorporates or developed using Administrative Boundaries ©PSMA Australia Limited licensed by the Commonwealth of Australia under Creative Commons Attribution 4.0 International licence (CC BY 4.0).

Our local area covers approximately 26.15 square kilometres and is home to over 215,000 estimated residents (as at July 2021).Visit the interactive mapMore information on areas of service

A map of the high ecological value waterways and water dependent ecosystems for the North Sydney LGA was prepared by the Science Division of the Department of Planning, Industry and Environment, with input layers and support for the map provided by the former NSW Department of Primary Industries-Fisheries and Department of Industry-Crown Lands and Water. The basis for the map arises from Science Division inputs to strategic planning processes. For example, the map has been included in the Land Use and Infrastructure Implementation Plans for the Wilton (Wilton2040, page 22) and Greater Macarthur (interim plan, page 36) Priority Growth Areas. This map was specifically developed for input to Local Government Local Strategic Planning Statements to support Council’s delivery of Strategy 25.1 of the Greater Sydney Region Plan.

The map shows areas where waterways and water dependent ecosystems are defined as high ecological value, based on definitions, guidelines and policies under the Environment Protection and Biodiversity Conservation Act 1999, Biodiversity Conservation Act 2016, Fisheries Management Act 1994 and Water Management Act 2000. Water dependent ecosystems are defined as wetlands, and flora and fauna that rely on water sources (including groundwater). The map represents an overlay of 39 indicators being used by the State Government to define high value, however, not all 39 indicators will be present in any one LGA (see Attachment 1 below). For example, there are 11 indicators making up the map for the North Sydney LGA. It should also be noted that the individual indicators have not been ground-truthed and it is recommended that field assessments and/or a comparison to local mapping be undertaken prior to any decisions being made. The map was created by initially placing a 1 ha (to correspond with a lot size) hexagon grid over the LGA, and attributing the grid with the area, length and/or frequency of occurrence of high value water dependent ecosystems. The purpose of the map is to identify strategic planning priorities for protecting and improving the health of high value waterways and water dependent ecosystems in the LGA. Once identified, the priorities can be used as a basis for identifying aquatic biodiversity refugia, stream rehabilitation efforts and setting management targets and/or land use planning controls that would protect or improve the health of waterways and water dependent ecosystems so they provide the essential services and functions expected of a cool blue-green corridor.

Ward boundaries within the City of Sydney local government area (LGA) have shifted many times, dramatically affecting the number and character of people entitled to vote. The redrawing of ward boundaries was largely undertaken to redress imbalances as the demographic makeup of the City changed over time. The polygon layer represents the boundaries of each ward and table lists the corresponding assessment books. This data is part of the historic ward boundaries story map.

Abstract This data and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are represented here as originally supplied. These map data contain a subset …Show full descriptionAbstract This data and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are represented here as originally supplied. These map data contain a subset of NSW & Commonwealth listed Critically Endangered Ecological Communities (CEEC) within NSW. This version (version 3) replaces previous versions. Version 1 only contained NSW CEECs. Further details regarding the updating of previous versions are provided under Lineage. This composite map was derived from the extraction of relevant vegetation map units contained in a variety of existing vegetation maps held in the Office of Environment and Heritage (OEH) VIS (Vegetation Information System) Map Catalogue. Please note that not all Listed CEECs are currently represented in this dataset. Reasons include: 1. the CEEC has not yet been mapped; 2. the CEEC has been mapped but the source data are not yet openly available (see Supplemental Information for details). Further CEECs may be added in future versions of this dataset. Note, there is no formal process in place to guarantee correction in the source maps that are transferred to this composite map product. Ecological communities are included in the critically endangered category of the Threatened Species Conservation Act, 1995, if they are facing an extremely high risk of extinction in NSW in the immediate future. Critically Endangered is also a category under the Environment Protection and Biodiversity Conservation Act, 1999. Purpose These data have been compiled to provide a machine readable flag for the likely occurrence of a Critically Endangered Ecological Community at a location. This data was initially complied by OEH for use in NSW Rural Fire Service planning and assessment tools, But has broader application. Dataset History Additional metadata It is expected that further CEECs will be added to these data. All source map datasets are referenced in the attribute table of this data layer. All source datasets are are identified with a VIS-ID number, and can be downloaded from the OEH Open Data Portal. The following CEECs (NSW) have not been included. Please contact the data custodian for access: 1. Hygrocybeae Community of Lane Cove Bushland Park in the Sydney Basin Bioregion - not mapped (contact Lane Cove Council) 2. Kincumber Scribbly Gum Forest in the Sydney Basin Bioregion - contact Gosford City Council In addition, whilst the following CEECs are included in this version, the spatial coverage may be extended by additional mapping data, as listed below: 1. Blue Gum High Forest in the Sydney Basin Bioregion - Lane Cove LGA (contact Lane Cove Council); Hornsby Shire (contact Hornsby Shire Council) 2. Shale Sandstone Transition Forest in the Sydney Basin Bioregion - Blue Mountains LGA (contact Blue Mountains City Council); Hornsby Shire (contact Hornsby Shire Council) Attributes: Orig_MapUnitCode - map unit identifier from source map Orig_MapUnitName - map name identifier from source map CEEC_NSW - LUT (yes/no); indicates whether a map unit is a CEEC (NSW) CEEC_EPBC - LUT (yes/no); indicates whether a map unit is a CEEC (Commonwealth) CEEC_NSW_Name - NSW CEEC name CEEC_EPBC_Name - EPBC CEEC name Comments - indicates if the source map unit was also shown as a TEC in the source data attribute table RFS1050 - LUT (yes/no); indicates if a map unit is specified under RFS 10/50 code Dataset Citation NSW Office of Environment and Heritage (2015) Map of Critically Endangered Ecological Communities NSW Version 3 20150925. Bioregional Assessment Source Dataset. Viewed 18 June 2018, http://data.bioregionalassessments.gov.au/dataset/cd7fdee5-1dec-4778-91f7-ddd43eabe8dc.

A map of the high ecological value waterways and water dependent ecosystems for the Sydney LGA was prepared by the Science Division of the Department of Planning, Industry and Environment, with input layers and support for the map provided by the former NSW Department of Primary Industries-Fisheries and Department of Industry-Crown Lands and Water. The basis for the map arises from Science Division inputs to strategic planning processes. For example, the map has been included in the Land Use and Infrastructure Implementation Plans for the Wilton (Wilton2040, page 22) and Greater Macarthur (interim plan, page 36) Priority Growth Areas. This map was specifically developed for input to Local Government Local Strategic Planning Statements to support Council’s delivery of Strategy 25.1 of the Greater Sydney Region Plan. The map shows areas where waterways and water dependent ecosystems are defined as high ecological value, based on definitions, guidelines and policies under the Environment Protection and Biodiversity Conservation Act 1999, Biodiversity Conservation Act 2016, Fisheries Management Act 1994 and Water Management Act 2000. Water dependent ecosystems are defined as wetlands, and flora and fauna that rely on water sources (including groundwater). The map represents an overlay of 39 indicators being used by the State Government to define high value, however, not all 39 indicators will be present in any one LGA (see Attachment 1 below). For example, there are 8 indicators making up the map for the Sydney LGA. It should also be noted that the individual indicators have not been ground-truthed and it is recommended that field assessments and/or a comparison to local mapping be undertaken prior to any decisions being made. The map was created by initially placing a 1 ha (to correspond with a lot size) hexagon grid over the LGA, and attributing the grid with the area, length and/or frequency of occurrence of high value water dependent ecosystems. The purpose of the map is to identify strategic planning priorities for protecting and improving the health of high value waterways and water dependent ecosystems in the LGA. Once identified, the priorities can be used as a basis for identifying aquatic biodiversity refugia, stream rehabilitation efforts and setting management targets and/or land use planning controls that would protect or improve the health of waterways and water dependent ecosystems so they provide the essential services and functions expected of a cool blue-green corridor. Data and Resources

The digital Suburb/Locality Boundaries and their legal identifiers have been derived from the cadastre data from each state and territory jurisdiction and are available below. Suburb/Locality …Show full descriptionThe digital Suburb/Locality Boundaries and their legal identifiers have been derived from the cadastre data from each state and territory jurisdiction and are available below. Suburb/Locality Boundaries are part of Geoscape Administrative Boundaries, which is built and maintained by Geoscape Australia using authoritative government data. Further information about contributors to Administrative Boundaries is available here. The full Administrative Boundaries dataset comprises seven Geoscape products: Localities Local Government Areas (LGAs) Wards Australian Bureau of Statistics (ABS) Boundaries, Electoral Boundaries State Boundaries and Town Points Updated versions of Administrative Boundaries are published on a quarterly basis. Users have the option to download datasets with feature coordinates referencing either GDA94 or GDA2020 datums. There were no updates in the February 2025 release Further information on Administrative Boundaries, including FAQs on the data, is available here through Geoscape Australia’s network of partners. They provide a range of commercial products based on Administrative Boundaries, including software solutions, consultancy and support. Note: On 1 October 2020, PSMA Australia Limited began trading as Geoscape Australia. License Information The Australian Government has negotiated the release of Administrative Boundaries to the whole economy under an open CCBY 4.0 license. Users must only use the data in ways that are consistent with the Australian Privacy Principles issued under the Privacy Act 1988 (Cth). Users must also note the following attribution requirements: Preferred attribution for the Licensed Material: Administrative Boundaries © Geoscape Australia licensed by the Commonwealth of Australia under Creative Commons Attribution 4.0 International licence (CC BY 4.0). Preferred attribution for Adapted Material: Incorporates or developed using Administrative Boundaries © Geoscape Australia licensed by the Commonwealth of Australia under Creative Commons Attribution 4.0 International licence (CC BY 4.0).

A map of the high ecological value waterways and water dependent ecosystems for the Willoughby LGA was prepared by the Science Division of the Department of Planning, Industry and Environment, with input layers and support for the map provided by the former NSW Department of Primary Industries-Fisheries and Department of Industry-Crown Lands and Water. The basis for the map arises from Science Division inputs to strategic planning processes. For example, the map has been included in the Land Use and Infrastructure Implementation Plans for the Wilton (Wilton2040, page 22) and Greater Macarthur (interim plan, page 36) Priority Growth Areas. This map was specifically developed for input to Local Government Local Strategic Planning Statements to support Council’s delivery of Strategy 25.1 of the Greater Sydney Region Plan. The map shows areas where waterways and water dependent ecosystems are defined as high ecological value, based on definitions, guidelines and policies under the Environment Protection and Biodiversity Conservation Act 1999, Biodiversity Conservation Act 2016, Fisheries Management Act 1994 and Water Management Act 2000. Water dependent ecosystems are defined as wetlands, and flora and fauna that rely on water sources (including groundwater). The map represents an overlay of 39 indicators being used by the State Government to define high value, however, not all 39 indicators will be present in any one LGA (see Attachment 1 below). For example, there are 15 indicators making up the map for the Willoughby LGA. It should also be noted that the individual indicators have not been ground-truthed and it is recommended that field assessments and/or a comparison to local mapping be undertaken prior to any decisions being made. The map was created by initially placing a 1 ha (to correspond with a lot size) hexagon grid over the LGA, and attributing the grid with the area, length and/or frequency of occurrence of high value water dependent ecosystems. The purpose of the map is to identify strategic planning priorities for protecting and improving the health of high value waterways and water dependent ecosystems in the LGA. Once identified, the priorities can be used as a basis for identifying aquatic biodiversity refugia, stream rehabilitation efforts and setting management targets and/or land use planning controls that would protect or improve the health of waterways and water dependent ecosystems so they provide the essential services and functions expected of a cool blue-green corridor. Data and Resources

The Hornsby Vegetation Map 2017 provides current information on the native vegetation in the study area. Previous Hornsby Vegetation mapping was completed in 2008. There are substantial changes in the mapped polygons on the urban-bushland boundary based on the updated imagery and map rules. New mapping thresholds are designed to address Council’s information needs arising from new regulations governing vegetation management in NSW, in particular the 10/50 bushfire protection rule. These were developed in consultation with Council and tested in a trial area prior to mapping. The map has been compiled using visual aerial photo interpretation of 2014 imagery and botanical review. New field work has included collect rapid floristic data at selected survey locations. The update incorporates other sources of field survey and vegetation mapping completed between 2008 and 2017. The map is approximately 1:25,000 scale. The Hornsby Vegetation Map 2017 applies the existing, accepted vegetation classification established in Smith and Smith Hornsby Vegetation Map 2008 Update. Two updates are provided with the addition of a new code for mixed ‘urban native/ exotic’ patches (consistent with Sydney Metropolitan vegetation mapping that overlaps part of the study area (OEH 2015)) and an updated classification equivalence table necessitated by changes to NSW plant community types. Modified, predominantly native vegetation has been attributed with the closest, applicable native vegetation and denoted as disturbed. In areas identified as ‘urban native/ exotic’ the proportion of exotics is highly variable. Field validation is recommended to support land management decisions in these areas. The 2017 map has identified 17,005 ha of vegetation including 664 ha of EEC and 653 ha of ‘urban native/ exotic’ vegetation in the study area. In addition, the map includes 231 ha of potential relictual EEC subject to field validation. A direct comparison of changes to vegetation extent between 2008 and 2017 are not possible due to differing map methods. All maps have limitations and field validation is recommended for detailed site planning and to verify the presence of vegetation types, particularly communities or species listed under the NSW Threatened Species Conservation Act 1994 or Commonwealth Environmental Protection and Biodiversity Conservation Act 1996. Air photo interpretation is limited to a ‘birds eye view’ and may not detect changes in vegetation composition observable from field survey. Approximately 21% of the map has been validated by current and previous authors.