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Amendment C149 - Proposed changes by Melbourne Water

Current status: Adopted by Council, submitted to Minister for Planning for approval

On Tuesday 24 July, Council considered the adoption of Planning Scheme Amendment C149, based on the report of an Independent Panel appointed by the Minister for Planning and resolved to adopt the amendment. View Council Minutes.

Should you have any questions, please contact Ben Champion on 9294 6141.


Changes to flooding overlays have been proposed by Melbourne Water for parts of the Yarra Ranges which are susceptible to flooding. Anyone affected by the proposed changes was directly notified by mail.

An “overlay” is a planning control designed to control development in relation to a particular issue, such as heritage, bushfire, or in this case flood risk. It is mapped in planning scheme maps, and also has a written part (ordinance) which describes how the control works.

The changes proposed by Melbourne Water affect two overlay controls – the Land Subject to Inundation Overlay (LSIO) and the Special Building Overlay (SBO), which were introduced into the Yarra Ranges Planning Scheme in the early 2000s.

The overlays are in place to ensure that affected land is developed in a way that reduces the potential for flooding and minimises the risk of damage to properties.

Director of Social and Economic Development Ali Wastie said the amendment proposed to update flood overlay mapping to better reflect current conditions.

“Since the planning controls were introduced, Melbourne Water has developed more advanced flood mapping and modelling,” Ms Wastie said.


4 result(s) found

  • Who will be affected by the proposed changes?

    Who will be affected by the proposed changes?

    Find your property to see if the changes affect you.

    In summary, there are:

    - LSIO areas added around waterways in Coldstream, Yering, Gruyere, Wandin, Wandin North, Wandin East, Silvan, Seville, Don Valley, Lysterfield, Belgrave Heights, Tecoma, Belgrave, Selby and Menzies Creek

    - LSIO is proposed for the Little Yarra River upstream of Yarra Junction to Powelltown, and upstream of Warburton to Reefton

    - LSIO areas are added in Lilydale and in the Olinda Creek catchment

    - SBO changes in Lilydale, Mooroolbark, Kilsyth and Montrose

    - SBO is proposed in the urban area of Coldstream.

    While the amendment proposes to apply the LSIO to large rural areas, it is important farming activities can continue as normal without the need for a permit. Melbourne Water considers 100 cubic metres of fill on land will not compromise the intent of the LSIO, provided movement of water across property boundaries does not change. A permit exemption for this is part of the proposal.

  • What is a Land Subject to Inundation Overlay (LSIO) ?

    What is a Land Subject to Inundation Overlay (LSIO) ?

    The LSIO relates to flooding caused by overflowing rivers and creeks. Many types of buildings and works in these areas require a planning permit, which allows Melbourne Water to guide how the development occurs in a way that will minimise flood risk.

    Both the LSIO and SBO are based on land areas that are subject to a one per cent likelihood of a one in 100 year flood occurring in any given year.

    Flood patterns can change due to urban development creating more hard surfaces that water runs off, by improvements to drainage systems, changes to land topography, construction of dams and levee systems, and other factors.

  • What is a Special Building Overlay (SBO) ?

    What is a Special Building Overlay (SBO) ?

    When severe storms generate more water than the drainage system can carry, the excess runs downhill along natural flow paths or valleys. These overland flows usually happen with little or no warning, and can cause property damage and safety risks in low lying areas. The Special Building Overlay addresses this type of flooding.

    Where flood risks from drainage system overflows exist, the SBO helps to reduce the risk of property damage, commonly by ensuring that floor levels of buildings are high enough to avoid most floods.

  • Would you like to find out more?

    Would you like to find out more?

    For further details on the Planning Scheme and Amendment, please contact Council's Strategic Planning Department on 9294 6165 or

    If you would like to be kept up to date with the progress of the Amendment please subscribe to page updates at the bottom of the main C149 web page.

    Melbourne Water

    If you would like further technical information about the overlays, for example flooding impacts or flood levels, please contact Melbourne Water on 9679 7517 or

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