melbourne-vic-gov-au/2018-building-footprints-pq2z-35fu
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Updated almost 3 years ago
Indexed 3 hours ago

2018 Building Footprints

This dataset shows the footprints of all structures within the City of Melbourne. A building footprint is a 2D polygon (or multi-polygon) representation of the base of a building or structure. The footprint is defined as the boundary of the structure where the walls intersect with the ground plane or podium, rather than an outline of the roof area (roofprint).

Where a building has a significant change in built form, multiple footprint polygons are ‘stacked’ vertically to define shape of the built form. This includes, and is not limited to:

  • Tower

  • Podium

  • Setbacks/offsets

To see the footprints in 3D please refer to our <a href="https://developmentactivity.melbourne.vic.gov.au/">Development Activity Model</a>

The Australian Height Datum (AHD) is the national vertical datum for Australia. The National Mapping Council adopted the AHD in May 1971 as the datum to which all vertical control mapping would be referred

The data was captured in May 2018.

Columns

NameSocrata field nameColumn name in sgr mountData typeDescription
structure_min_elevationstructure_min_elevationstructure_min_elevationNumberThe ‘Z min’ elevation (AHD) value of the base of the building/structure.
footprint_min_elevationfootprint_min_elevationfootprint_min_elevationNumberThe ‘Z min’ elevation (AHD) value of the base of each building footprint polygon component.
footprint_max_elevationfootprint_max_elevationfootprint_max_elevationNumberThe elevation (AHD) of the top of the building footprint component defined by the polygon. If the polygon is defining the top component of a building the elevation is typically measured to the roof or ridgeline. The elevation does not include objects such as chimneys, antennas and other non-structural features
tiertiertierNumberA building or structure is divided into tiers which indicate a major change in built form as we move from the ground to the roof. A tier ID is assigned to each, starting at ‘1’ for the ground level footprint, increasing sequentially with each footprint working up the structure (e.g. 1,2,3,4 etc)
property_idproperty_idproperty_idNumberUnique ID for each property. Where a property is not present the ID can be used to link to a Road corridor
structure_idstructure_idstructure_idNumberUnique ID for each building/structure.
structure_extrusionstructure_extrusionstructure_extrusionNumberThe height value of each building/structure.
structure_max_elevationstructure_max_elevationstructure_max_elevationNumberThe elevation (AHD) of the top of the building/structure. The elevation is typically measured to the roof or ridgeline. The elevation does not include objects such as chimneys, antennas and other non-structural features
roof_typeroof_typeroof_typeText‘Flat’, ‘Hip’, ‘Gable’, ‘Pyramid’, ‘Shed’ please see attachment for further information
footprint_extrusionfootprint_extrusionfootprint_extrusionNumberThe height value of each building footprint polygon.
footprint_typefootprint_typefootprint_typeTextStructure, Bridge
the_geomthe_geomthe_geomMultiPolygonThe geometry of the footprint
 
Preview
  • 2018_building_footprints
     
Upstream Metadata