Empowering Urban Development

Elevation & Terrain

• DEM (Digital Elevation Model) — raster of ground heights above mean sea level used for platform setting and earthworks.
  Products: DEMSA2 L1 (raw), SUDEM5
• DSM (Digital Surface Model) — elevation of ground plus features (buildings/trees); useful for early massing and view analyses.
  Products: DEMSA2 L2
• DTM (Digital Terrain Model) — smoothed bare-earth surface for contouring and hydrology.
  Products: DEMSA2 L3
• Contours — lines of equal elevation (e.g., 50 cm interval) for maps, feasibility packs, and platform communication.
  Products: Contours from DEMSA2 L3
• Slope / Gradient / Aspect / Curvature — terrain derivatives that drive cut-and-fill, street grades, stability and access design.
  Products: DEM derivatives (DEMSA2/SUDEM5).

Flood & Stormwater (SuDS)

• FHI (Flood Hazard Index) — composite index highlighting likely pooling/inundation areas for setback and platform rules.
  Products: FHI layer (built from DEMSA2/SUDEM hydrology)
• HAND (Height Above Nearest Drainage) — relative height above the stream network; a strong indicator of flood/wetness exposure.
  Products: HAND layer from DEMSA2/SUDEM
• Flow Direction & Flow Accumulation — downslope pathways and upslope contributing area; reveals natural channels and SuDS opportunities.
  Products: Hydrology suite (DEMSA2/SUDEM derivatives)
• Watersheds / Catchments — areas draining to a given outlet for on-site detention design and reporting.
  Products: Catchment delineations
• Distance to Rivers/Waterbodies/Wetlands/Ocean / Nearest Drainage — proximity screens for permit setbacks and riparian buffers.
  Products: Distance-to-water layers
• Stream Order Network — hierarchy of channels to plan crossings and culvert spacing along new streets/servitudes.
  Products: Stream Order Network Delineation

Access, Grading & Visibility

• Platform & Street Grades — terrain-driven maximums/minimums for roads, driveways and barrier-free access.
  Products: DEM derivatives (Slope/Aspect/Curvature), Contours
• Cut-and-Fill Volumes — earthworks balancing to optimise costs and haulage.
  Products: DEMSA2 L1–L3 / SUDEM5
• Viewshed / Line-of-Sight (LOS) — visual-corridor and skyline checks for tall buildings, heritage vistas, and comms towers.
  Products: Viewshed

Land Use & Urban Context

• Land-Cover / Built-Up Mask — baseline urban fabric (developed vs. open space) for growth edges and infill targeting.
  Products: Urban land-cover package
• Administrative Boundaries & Roads — municipal/district/ward context, road hierarchies and legal cadastral grids for applications.
  Products: Admin/context packs
• Sensitive Receptors & Open Space — schools, hospitals, parks and buffer-worthy assets for layout adjustments.
  Products: Points/polygons context packs

Construction Feasibility & Risk

• Erosion & Stability Screening — slope/curvature/roughness hot-spots that signal retaining structures or regrading needs.
  Products: Morphological derivatives (Slope/Aspect/Curvature, TRI/TPI)
• Drainage Conflict Hot-spots — convergence zones and concentrated flow paths intersecting proposed roads/plots.
  Products: Flow Accumulation/Direction & Catchments
• Flood Setbacks & Platform Levels — 1% annual-chance (AEP) constraints to inform ground floors, basements and parking.                                                     Products: FHI, HAND, Contours
• Visibility & Telecom Readiness — confirm rooftop/antenna LOS and view-cone requirements in precinct plans.                                                      Products: Viewshed