Development FAQ's

Fences

Private property The following categories of fencing do not require Council approval, unless located within one of the areas listed below:

  • Colorbond, chainmesh, zincalume or similar, not exceeding 2.1 metres in height
  • masonry (brick/stone) walls not exceeding 1 metre in height
  • fences not exceeding 1 metre high within 6m of the intersection of two boundaries facing a road.

All fences exceeding the above requirements require detevelopment approval from council.

In addition, the following types of fencing also require development approval from council:

  • swimming pool safety fencing in conjunction with an application for a pool/spa or where being constructed in relation to a pool/spa approved on or after 1 July 1993
  • brush fencing (Building Rules Consent only).

All fences in the following areas require council approval:

  • Hills Face Zone Historic
  • (Conservation) zones or Historic Township Zone
  • State or Local Heritage Place
  • Regional Centre zone

Applying for council approval

If you need council approval, you will need to fill in an application form, provide plans of the proposed fence, and pay the relevant fees. Please refer to our information sheet on how to make a development application or please contact Customer Service on (08) 8384 0666 for a booklet.

Fences and your neighbour(s)

Whether you need Council approval or not you should consider your legal obligations as well as the convenience and safety of your neighbours if you are building a fence on a common boundary. It is always best to speak to your neighbour before undertaking any fencing work. There may be legal requirements to notify your neighbour, and to share costs of the fencing. These responsibilities lie between neighbours and are not subject to Council approval or control. Information on your rights and obligations under the Fences Act may be obtained from the:
Legal Services Commission of South Australia
helpline 1300 366 424
http://www.lsc.sa.gov.au/

Encumbrances and easements

If your property has an easement and your fence proposes to cross it, you may need the approval of the authority in which the easement vests. Encumbrances can also sometimes apply to a lane which may restrict the type, size and location of fences. Encumbrances are enforced by the Encumbror (usually the original developer) and not by Council. It is recommended you check your Certificate of Title for any restrictive easements or encumbrances.

Adjoining council property

If you wish to erect or repair a fence that shares a boundary with council property, a notice can be served on council requesting us to share the cost.

Note that council will not contribute towards the costs associated with fencing if the property:

  • adjoins a walkway
  • adjoins a reserve which is over 1 hectare in size
  • is a drainage reserve
  • adjoins a public road or road reserve
  • is a buffer reserve

Asbestos

Asbestos is a naturally occurring fibrous material, which has been mined in Australia & overseas from several types of mineral rock. Asbestos has the potential to cause lung disease if inhaled.

Removal of asbestos from domestic premises

  • Generally asbestos products left undisturbed do not present a significant health risk provided the material is in a reasonable condition.
  • A homeowner may remove asbestos from their own property without a license provided they follow the safety control measures described on the Safe Work SA webpage.
  • Once asbestos waste products have been safely removed, packaged & labelled, they must be transported to an EPA licensed landfill or waste transfer station.
  • Some renovation or demolition activities may require planning/building approval, please contact our development team on (08) 8384 0869 before the commencement of any work. 

Further information

Swimming pools & spas

Development approval for a new pool

Development approval is required for a new swimming pool, spa pool and safety fencing. We will check:

  • the details and location of safety barriers
  • the safety of the pump
  • the adequacy of structural support for the swimming pool or spa pool.

Fencing must be installed before a new pool is filled with water.

For more information please call the Duty Builder on 8384 0666.

Above-ground or inflatable pools and 'portable' spa pools

If the swimming pool, including an inflatable pool, or spa pool has a filtration system you will:

  • need to get approval for it to be placed and/or constructed on your land.
  • ensure safety features, including a swimming pool safety barrier / fence are in place.

The sides of an above-ground pool can be a suitable safety barrier if:

  • they are non-climbable and are at least 1.2 metres high, and
  • a barrier is placed around the ladder (even if it is removable), and
  • a barrier is placed around anything else that can be climbed on.

Further information on pool and spa safety can be found on the South Australian government web site.

For more information please call the Duty Builder on 8384 0666.

Public swimming and spa pools - inspections

The council’s environmental health team conducts routine inspections and complaint investigations of public swimming and spa pools in the council area to ensure their compliance with the South Australian Public Health Act, 2011. Please refer to the Department of Health web site for further information and standards relating to public swimming pool and spas in South Australia.

Private swimming and spa pools

It is the responsibility of the owner of the pool or spa to ensure it is properly maintained. If a pool is not properly looked after, it may become a breeding ground for harmful bacteria and other organisms that may cause serious illness.

The correct use of appropriate chemicals and good management of disinfection, filtration and recirculation will keep the pool water clean, safe and in a hygienic condition.

Please refer to the Department of Health website for fact sheets on private swimming pools and spa pools or contact the council’s environmental health section on 08 8384 0628.

Regulated/significant trees and native vegetation

In the City of Onkaparinga, the state government’s native vegetation legislation applies, and can take precedence to regulated and significant trees. Generally, the native vegetation legislation needs to be considered first and the relevant authority is the Native Vegetation Unit within the Department of Environment, Water and Natural Resources (DEWNR) and the Native Vegetation Council. If the vegetation is exempt from needing clearance approval under the Native Vegetation Act and Regulations, then the regulated and significant tree provisions of the Development Act and Regulations may apply (not both).

Regulated and significant trees

In November 2011, the state government introduced changes to the Development Act and Regulations, and also the Development Plan, for regulated and significant trees.

A regulated tree is any tree with a trunk circumference of 2.0m or more (measured at a point 1.0m above natural ground level). In the case of trees with multiple trunks, regulated trees are those with trunks having a total circumference of 2.0m or more and an average circumference of 625mm or more (measured at a point 1.0m above natural ground level).

A significant tree is a regulated tree with a trunk circumference of 3.0m or more (measured at a point 1.0m above natural ground level). In the case of trees with multiple trunks, significant trees are those with trunks having a total circumference of 3.0m or more and an average circumference of 625mm or more (measured at a point 1.0m above natural ground level).

Some trees may be exempt from regulated and significant tree controls either because of their location or their species.

Regulated and significant trees must not be damaged without development approval. Tree damaging activities include:

  • removal
  • killing or destruction
  • ringbarking, topping or lopping
  • severing of branches, limbs, stems or trunk
  • any other substantial damage to a tree including its root system.

Maintenance pruning does not require development approval if:

  • it is not likely to affect adversely the general health and appearance of a tree
  • it does not remove more than 30% of the crown of the tree and it is required to remove dead or diseased wood, or to remove branches that pose a material risk to a building or areas frequently used by people.

For more information, including exemptions to these controls, please read the information sheet from the Department of Planning and Local Government or contact our Development Services staff on 08 8384 0666.

Technical Services Standard Details

The following Technical Services Standard Details have been provided to assist in the preparation of documentation for Civil Engineering works within the City of Onkaparinga.

  • It is the responsibility of the individual to ensure that they are using the current version of these drawings. The City of Onkaparinga accepts no liability for issues arising from the use of superseded drawings.
  • These drawings may not suit all applications. Any proposed alterations to these drawings should be referred to the City of Onkaparinga for approval.
  • Any inconsistencies or omissions in these drawings should be brought to the attention of the City of Onkaparinga for clarification or amendment.
  • Electronic versions of these drawings are available for viewing or download below in PDF format.
  • Printed copies of these drawings are uncontrolled.
  • For further information contact the City of Onkaparinga at mail@onkaparinga.sa.gov.au or phone (08) 8384 0666.

To download a PDF version for viewing or printing click on the relevant link below:

stormwater management design guide(PDF, 569KB)

Technical Service Standard Details - full details(PDF, 1MB)

Typical kerbing profiles (100 series)

DWG# Drawing title Rev Date
SD‑100 100 UPRIGHT KERB & GUTTER — INFALL TYPE (100 K&G)(PDF, 68KB) B AUG 12
SD‑101 150 UPRIGHT KERB & GUTTER — INFALL TYPE (150 K&G)(PDF, 69KB) B AUG 12
SD‑102 100 UPRIGHT KERB & TRAY — OUTFALL TYPE (100 K&T)(PDF, 69KB) B AUG 12
SD‑103 150 UPRIGHT KERB & TRAY — OUTFALL TYPE (150 K&T)(PDF, 69KB) B AUG 12
SD‑104 SPOON DRAIN - RESIDENTIAL & INDUSTRIAL (SD)(PDF, 67KB) B AUG 12
SD‑105 DRIVEWAY INVERT — INFALL TYPE — RESIDENTIAL & INDUSTRIAL (INV)(PDF, 106KB) C AUG 12
SD‑106 DRIVEWAY INVERT — OUTFALL TYPE — RESIDENTIAL & INDUSTRIAL (INV)(PDF, 106KB) C AUG 12
SD‑107 100 BARRIER KERB — (100 K)(PDF, 66KB) B AUG 12
SD‑108 150 BARRIER KERB — (150 K)(PDF, 67KB) B AUG 12
SD‑109 EDGE BEAM — (EB)(PDF, 66KB) B AUG 12
SD‑110 KEYED-IN KERB — FOR MEDIANS (MED) OR ROUNDABOUTS (RAB)(PDF, 67KB) C AUG 12
SD‑111 SIT-ON KERB — (SOK)(PDF, 66KB) B AUG 12
SD‑112 SEMI MOUNTABLE KERB & GUTTER — INFALL TYPE (SK&G)(PDF, 69KB) B AUG 12
SD‑113 SEMI MOUNTABLE KERB & TRAY — OUTFALL TYPE (SK&T)(PDF, 69KB) B AUG 12
SD‑114 SEMI MOUNTABLE KERB — (SK)(PDF, 67KB) B AUG 12
SD‑115 LOW PROFILE ROUNDABOUT KERB — (RAB)(PDF, 126KB) D FEB 18
SD‑116 900mm SPOON DRAIN - RESIDENTIAL & INDUSTRIAL (SD)(PDF, 122KB) A JUN 13
SD‑117 1200mm SPOON DRAIN - RESIDENTIAL & INDUSTRIAL (SD)(PDF, 123KB) A JUN 13

 

Typical drainage details (200 series)

DWG# Drawing title Rev Date
SD‑200 JUNCTION BOX (TYPE 1) — FOR PIPE SIZES ≤ ∅1050mm(PDF, 181KB) C FEB 18
SD‑201 JUNCTION BOX (TYPE 2) — FOR PIPE SIZES > ∅1050mm(PDF, 189KB) D FEB 18
SD‑202 GRATED INLET PIT (TYPE 1) — FOR PIPE SIZES ≤ ∅450mm(PDF, 177KB) C FEB 18
SD‑203 GRATED INLET PIT (TYPE 2) — FOR PIPE SIZES ≤ ∅1050mm(PDF, 180KB) C FEB 18
SD‑204 SADDLE PIT — FOR SMALL TO LARGE PIPE CONNECTION — WHERE LARGE PIPE SIZE ≥ ∅1050mm(PDF, 179KB) C FEB 18
SD‑205 FIELD GULLY — WITH 600mm CONCRETE APRON(PDF, 176KB) C FEB 18
SD‑206 DOUBLE SIDE ENTRY PIT (TYPE 1) — LINTEL TYPE — WITHOUT DEFLECTORS(PDF, 180KB) D FEB 18
SD‑207 DOUBLE SIDE ENTRY PIT (TYPE 2) — LINTEL TYPE — WITH DEFLECTORS(PDF, 184KB) D FEB 18
SD‑208 DOUBLE SIDE ENTRY PIT (TYPE 3) — COVER & FRAME TYPE — WITHOUT DEFLECTORS(PDF, 185KB) D FEB 18
SD‑209 DOUBLE SIDE ENTRY PIT (TYPE 4) — COVER & FRAME TYPE — WITH DEFLECTORS(PDF, 187KB) D FEB 18
SD‑210 PIT BENCHING (STREAMLINING) — TO BE USED FOR ALL DRAINAGE PITS(PDF, 145KB) C FEB 18
SD‑211 ‘CONFINED SPACE' WARNING SIGN — FOR ALL NEW DRAINAGE PITS(PDF, 142KB) B AUG 12
SD‑212 BANDAGE JOINT — FOR CONCRETE PIPES(PDF, 170KB) C FEB 18
SD‑213 DRAINAGE OUTLET TO KERB(PDF, 184KB) C FEB 18
SD‑214 DRAINAGE CROSSOVER (TYPE 1) — ALUMINIUM 'TOP HAT' SECTION(PDF, 135KB) B AUG 12
SD‑215 DRAINAGE CROSSOVER (TYPE 2) — STEEL 'BOX DRAIN'(PDF, 137KB) B AUG 12
SD‑216 STEP IRON DETAILS — FOR DRAINAGE PITS > 1.2m DEEP(PDF, 291KB) A AUG 12
SD‑220 ALLOTMENT CONNECTION (TYPE 1) TO REAR OF ALLOTMENT DRAIN — CONCRETE INSPECTION POINT COVER & SURROUND(PDF, 141KB) D FEB 18
SD‑221 ALLOTMENT CONNECTION (TYPE 2) TO REAR OF ALLOTMENT DRAIN — CONCRETE ALLOTMENT COLLECTION SLAB & PVC GRATE(PDF, 155KB) D FEB 18
SD‑222 ALLOTMENT CONNECTION (TYPE 3) TO FRONT OF ALLOTMENT DRAIN — CONCRETE INSPECTION POINT COVER & SURROUND(PDF, 141KB) D FEB 18
SD‑223 ALLOTMENT CONNECTION TO DRAIN — TO RCP OR FRCP ALLOTMENT DRAIN – FOR FRONT OR REAR OF ALLOTMENT DRAIN CONNECTIONS(PDF, 141KB) B AUG 12
SD‑230 SWALE INSTALLATION (TYPE 1) — 900mm ROCK LINED SWALE(PDF, 76KB) B AUG 12
SD‑231 SWALE INSTALLATION (TYPE 2) — AT DRIVEWAY CROSSOVERS — CEMENT TREATED(PDF, 131KB) C FEB 18

 

Typical path details (300 series)

DWG# Drawing title Rev Date
SD‑300 BLOCK PAVED FOOTPATH — (RESIDENTIAL)(PDF, 143KB) E FEB 18
SD‑301 BLOCK PAVED FOOTPATH — (INDUSTRIAL)(PDF, 149KB) E FEB 18
SD‑302 CONCRETE FOOTPATH — (RESIDENTIAL)(PDF, 213KB) E FEB 18
SD‑303 CONCRETE FOOTPATH — (INDUSTRIAL)(PDF, 218KB) E FEB 18
SD‑304 FOOTPATH & RETAINING WALL — RETAINING WALL ADJACENT FOOTPATH(PDF, 187KB) B AUG 12
SD‑305 ASPHALT FOOTPATH — (RESIDENTIAL)(PDF, 142KB) B FEB 18
SD‑306 ASPHALT FOOTPATH — (INDUSTRIAL)(PDF, 146KB) B FEB 18
SD‑307 EXPOSED AGGREGATE FOOTPATH — (RESIDENTIAL)(PDF, 216KB) B FEB 18
SD‑308 EXPOSED AGGREGATE FOOTPATH — (INDUSTRIAL)(PDF, 222KB) B FEB 18
SD‑309 PERMEABLE PAVED FOOTPATH - (RESIDENTIAL)(PDF, 143KB) A FEB 18
SD‑310 CONCRETE SHARED PATH(PDF, 213KB) D FEB 18
SD‑311 BLOCK PAVED SHARED PATH(PDF, 141KB) D FEB 18
SD‑312 SPRAY SEAL SHARED PATH (TYPE 1) — WITHOUT GEOGRID(PDF, 136KB) D FEB 18
SD‑313 SPRAY SEAL SHARED PATH (TYPE 2) — WITH 'TENSAR SS30' GEOGRID(PDF, 137KB) D FEB 18
SD‑314 ASPHALT SHARED PATH (TYPE 1) — WITHOUT GEOGRID(PDF, 136KB) D FEB 18
SD‑315 ASPHALT SHARED PATH (TYPE 2) — WITH 'TENSAR SS30' GEOGRID(PDF, 138KB) D FEB 18
SD‑316 CEMENT TREATED RUBBLE SHARED PATH(PDF, 142KB) D FEB 18
SD‑317 LIMESTONE RUBBLE SHARED PATH(PDF, 221KB) B AUG 12
SD‑320 KERB RAMP (TYPE 1) - FOR KERB RAMP WITH WINGS(PDF, 187KB) D FEB 18
SD‑322 KERB RAMP (TYPE 2) - FOR KERB RAMP WITH PLINTHS(PDF, 183KB) A FEB 18
SD‑325 FOOTPATH HOLDING RAIL INSTALLATION — AT KERB RAMP FOR PEDESTRIANS(PDF, 139KB) C FEB 18
SD‑326 SHARED PATH HOLDING RAIL INSTALLATION — AT KERB RAMP FOR PEDESTRIANS & CYCLISTS(PDF, 138KB) C FEB 18
SD‑327 PEDESTRIAN REFUGE(PDF, 180KB) C FEB 18
SD‑330 LOCALISED FOOTPATH WIDENING — TO ALLOW FOR BIN PLACEMENT(PDF, 131KB) D FEB 18
SD‑331 CONCRETE INFILL FOR SERVICE COVERS — FOR BLOCK PAVING(PDF, 76KB) B AUG 12
SD‑332 EDGE FOOTING INSTALLATION — INTERFACE BETWEEN PAVING & LANDSCAPED AREAS(PDF, 143KB) D FEB 18
SD‑340 CONCRETE FOOTPATH REPAIR - (RESIDENTIAL)(PDF, 230KB) A FEB 18

 

Typical installation details (400 series)

DWG# Drawing title Rev Date
SD‑400 KERB INSTALLATION (TYPE 1) — IN NEW PAVEMENT — WITH FUTURE VERGE TREATMENT(PDF, 135KB) D FEB 18
SD‑401 KERB INSTALLATION (TYPE 2) — IN NEW PAVEMENT — WITH FOOTPATH BEHIND KERB(PDF, 134KB) D FEB 18
SD‑402 KERB INSTALLATION (TYPE 3) — IN EXISTING PAVEMENT(PDF, 174KB) D FEB 18
SD‑403 KERB INSTALLATION (TYPE 4) — IN EXISTING PAVEMENT WITH 'CLSM' INFILL(PDF, 174KB) D FEB 18
SD‑404 KERB INSTALLATION (TYPE 5) — HOTMIX KERBING FOR TREE IN CLOSE PROXIMITY — IN EXISTING PAVEMENT(PDF, 207KB) B FEB 18
SD‑405 SIT-ON KERB INSTALLATION (TYPE 1) — IN NEW PAVEMENT(PDF, 137KB) C FEB 18
SD‑406 SIT-ON KERB INSTALLATION (TYPE 2) — IN EXISTING PAVEMENT(PDF, 139KB) C FEB 18
SD‑407 KEYED-IN KERB INSTALLATION (TYPE 1) – IN NEW PAVEMENT(PDF, 137KB) C FEB 18
SD‑408 KEYED-IN KERB INSTALLATION (TYPE 2) — IN EXISTING PAVEMENT(PDF, 139KB) C FEB 18
SD‑410 300mm CONCRETE FILLET AT KERB RADIUS' — FOR USE WHERE SPOON DRAIN OR EDGE STRIP IS USED(PDF, 137KB) C FEB 18
SD‑411 CONCRETE APRON INSTALLATION — TO DIRECT STORMWATER FLOWS AT INTERSECTION(PDF, 68KB) B AUG 12
SD‑420 DRIVEWAY INVERT & CROSSOVER INSTALLATION (RESIDENTIAL) DRIVEWAY INVERT FOR 150 UPRIGHT KERB PROFILE(PDF, 225KB) D FEB 18
SD‑421 DRIVEWAY INVERT & CROSSOVER INSTALLATION (INDUSTRIAL) DRIVEWAY INVERT FOR 150 UPRIGHT KERB PROFILE(PDF, 226KB) D FEB 18
SD‑422 DRIVEWAY INVERT (RESIDENTIAL & INDUSTRIAL) DRIVEWAY INVERT FOR 150 UPRIGHT KERB PROFILE(PDF, 169KB) D FEB 18
SD‑423 DRIVEWAY INVERT INSTALLATION (RESIDENTIAL & INDUSTRIAL) REPLACEMENT OF EXISTING KERBING(PDF, 218KB) B FEB 18
SD‑430 PAVEMENT REINSTATEMENT FOR TRENCHES & REPAIRS (TYPE 1) FOR LOCAL ROADS(PDF, 140KB) E FEB 18
SD‑431 PAVEMENT REINSTATEMENT FOR TRENCHES & REPAIRS (TYPE 2) FOR COLLECTOR & DISTRIBUTOR ROADS(PDF, 143KB) E FEB 18
SD‑432 DRAINAGE TRENCH BACKFILLING — BELOW SUB-BASE LEVEL FOR PIPE SIZES ≤ ∅1500mm(PDF, 218KB) D AUG 12
SD‑433 SERVICE TRENCH BACKFILLING — BELOW SUB-BASE LEVEL FOR CONDUITS OR SERVICES(PDF, 110KB) D AUG 12
SD‑440 MEDIAN ISLAND KERB INSTALLATION (TYPE 1) CONTROLLED LOW STRENGTH MATERIAL (CLSM) INFILL(PDF, 76KB) B AUG 12
SD‑441 MEDIAN ISLAND KERB INSTALLATION (TYPE 2) — PATTERN FINISH CONCRETE INFILL(PDF, 71KB) B AUG 12
SD‑442 SPLITTER ISLAND INSTALLATION (TYPE 1) — BACK TO BACK SIT-ON KERB(PDF, 68KB) B AUG 12
SD‑445 MEDIAN ISLAND KERB INSTALLATION (TYPE 3) CONTROLLED LOW STRENGTH MATERIAL (CLSM) INFILL(PDF, 77KB) B AUG 12
SD‑446 MEDIAN ISLAND KERB INSTALLATION (TYPE 4) — PATTERN FINISH CONCRETE INFILL(PDF, 71KB) B AUG 12
SD‑447 SPLITTER ISLAND INSTALLATION (TYPE 2) — BACK TO BACK KEYED-IN KERB(PDF, 68KB) B AUG 12
SD‑450 ROUNDABOUT INSTALLATION (TYPE 1) WITH MOUNTABLE ISLAND AND LANDSCAPED CENTER ISLAND(PDF, 153KB) C FEB 18
SD‑451 ROUNDABOUT INSTALLATION (TYPE 2) — PATTERN FINISH CONCRETE INFILL(PDF, 144KB) C FEB 18
SD‑460 SPOON DRAIN INSTALLATION (TYPE 1) — IN NEW PAVEMENT(PDF, 71KB) A AUG 12
SD‑461 SPOON DRAIN INSTALLATION (TYPE 2) — IN EXISTING PAVEMENT(PDF, 172KB) B FEB 18
SD‑462 SPOON DRAIN INSTALLATION (TYPE 3) — IN EXISTING PAVEMENT WITH 'CLSM' INFILL(PDF, 171KB) B FEB 18

 

Typical landscaping details (600 series)

DWG# Drawing title Rev Date
SD‑600 PLANTING – SHRUBS(PDF, 176KB) A FEB 18
SD‑601 PLANTING – ADVANCED TREES(PDF, 218KB) A FEB 18
SD‑610 SPADE EDGE – (SE)(PDF, 148KB) A FEB 18
SD‑611 HARD EDGE – HARDWOOD OR WOOD PLASTIC COMPOSITE (HE)(PDF, 149KB) A FEB 18
SD‑620 EDGE BEAM – INTERFACE BETWEEN PAVEMENT & LANDSCAPING(PDF, 134KB) A FEB 18
SD‑630 BOLLARD INSTALLATION – WOOD PLASTIC COMPOSITE(PDF, 129KB) A FEB 18

NBN infrastructure in new developments

Developers are responsible for providing telecommunications infrastructure in their developments. To provide this infrastructure, you need to contract a carrier to install telecommunications infrastructure in your new development.

Developers can choose any carrier to service their development. If they don’t choose another carrier:

  • nbn is the Infrastructure Provider of Last Resort for larger developments (100 lots or more) and for all developments in areas where nbn is rolling out.
  • Telstra is the Infrastructure Provider of Last Resort for smaller developments (less than 100 lots), until the nbn rolls out in the area

View the nbn™ roll out map.

Developers are asked to apply at least 6 months before the required date of service, to ensure a connection is ready when residents move in.

If you have a new or recently approved development application lodged with the City of Onkaparinga please visit nbn’s website to register your development and ensure it is nbn™ ready

Website links

Request a copy of your house plan

Please use council's information access form(PDF, 145KB) to request a copy of your house plan (fees apply). Completed forms can be emailed to applications@onkaparinga.sa.gov.au

Built Heritage

Built heritage within the City of Onkaparinga comprises heritage places of national, state and local significance. Please visit council's built heritage pages for more information on listed properties, history of European settlement and initiatives to protect our built heritage.

Water tanks

New houses built in South Australia are now required to install a rainwater tank of at least 1000 litres. The tank must be plumbed into the toilet, to a water heater or to all cold water outlets in the laundry, and the inlet and overflow must be fitted with mosquito proof screens.

The same rules apply to new extensions or alterations with an area greater than 50m2 that include a toilet, water heater or laundry cold water outlet.

In most cases, development approval is not required to install a rainwater tank on an existing home or business. Exceptions are tanks over 10m2 and 4 metres in height, including stand need Development Approval.

What size tank?

The tank capacity you need depends on what you want to use it for, the size of your household and garden, your roof area and the annual rainfall. The Adelaide mean annual rainfall varies from over 1100mm in the Adelaide Hills to around 400mm near the sea.

It is a common misconception that a tank for garden watering is the best way to save water. While you can save a significant amount of water this way you will need a very large tank, and you can usually save more water by connecting a smaller tank to your toilets or washing machine which are used regularly all year round.

For more information about rain water tanks contact Council's Development team via 8384 0666 or applications@onkaparinga.sa.gov.au.

State government also publishes a number of publications on the installation and maintenance of rain water tanks, available at https://www.sa.gov.au/topics/energy-and-environment/water/rainwater-tanks.