Unitywater Noosa Netserv Plan - Planning Assumptions · Attachment 1 - Draft Technical Note on Noosa Shire Netserv Plan Planning Assumptions

                                                       l   Noosa Netserv Plan Planning Assumptions June 2024




    Riparian and    Wetland                                         Noosa Planning Scheme
    wetland
    setbacks
    Non urban       Environmental Management and Conservation       Noosa Planning Scheme
    zoning          Zone, Recreation and open space and Limited
                    development

3.9.      Ultimate development calculation process
DMaTT calculates ultimate detached dwellings, attached dwellings, population, GFA and
employment using captured development approvals, density provisions, developable area of
land and m2 GFA per employee conversion rates. Ultimate development is used as the
source of available growth and as a cap to projected dwellings and GFA (i.e. projected
property growth cannot exceed ultimate).
DMaTT uses the following formulas in calculating ultimate development:
•     Ultimate dwellings: (Area – Constrained Land =Developable area (ha)) - (easement
      buffer where applicable (if developable area meets the min area)) x Dwell/ha
•     Ultimate population: Ultimate dwellings x Dwelling Occupancy (detached or attached)
•     Ultimate GFA: (Area – Constrained Land =Developable area (ha)) - (easement buffer
      where applicable (if developable area meets the min area)) x Site Coverage x Max Num
      Non Res Floors
•     Ultimate employment: Ultimate GFA / m2 GFA per employee


A number of adjustments are made automatically including:
      •   Where a property does not have the minimum lot size, ultimate is capped at 1
          detached dwelling.
      •   Where baseline and overriding development approval dwellings or GFA exceeds
          ultimate, ultimate is amended to reflect baseline data.

3.10. Propensity for Development

DMaTT uses development sequencing criteria loaded into a Bayesian Network (BN) to assist
in the analysis of the propensity for development, the testing of growth projections and to
forecast the sequence of development and growth for any property with capacity for further
development under the Noosa Council planning scheme. The approach maps the
relationships between development sequencing criteria (nodes) through a BN to determine
the propensity for development (i.e. if land is vacant and has a development approval, the
propensity for development is very high). In addition, the sequencing criteria has an effect to
filter and sort properties which may be developed but not developed to the development
yield allowed under the Noosa Council planning scheme.

The BN is used to score (from 0-1) each property against a range of criteria (e.g. land
vacancy, development approval, financial feasibility and proximity to infrastructure) for any
property with the capacity for further development. The higher the combined score (which is
known as development desirability index), the higher the propensity for development. To
achieve a high development desirability index score, a property is required to achieve a high
score across all criteria. Where a property has multiple development factors within the main
criteria, the highest factor is used (i.e. is vacant inside the PIA, vacant factor is applied).




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