Patio

A building permit is required for a patio as follows:

  • 10m2 or larger
  • Higher than 2.4m
  • Any size that’s attached to another building

In a residential zone, a patio generally can be built as below:

  • Attached to a building or freestanding
  • Made from metal or wood
  • Maximum flat roof height can be 3m
  • Maximum gable roof highest point can be 6m
  • Posts can be on the boundary 
  • Roof and gutters setback 0.5m from boundary

Shed

A building permit is required for a shed as follows:

  • 10m2 or larger
  • Higher than 2.4m

Generally in a residential zone, a shed or garage is required to be setback as follows:

  • 1m from a side and rear boundary where the length is less than 14m
  • 1.5m from a side or rear boundary where the length if over 14m
  • 1.5m from a secondary street boundary regardless of the length

The required setback may increase depending on the height of the structure.

Important note: 

  • A shed cannot be located in a property’s front yard
  • If the property is located in areas other than residential zones or if there is a development envelope on the property, you will need to consult with the City’s Planning Services on 9394 5000
  • The City has a planning Policy on Outbuildings (PLN 3.4), which includes restrictions on the height, area, location and finish of sheds and garages. A copy of this Policy is available at www.armadale.wa.gov.au/local-planning-policies

Carport

A building permit is required for a carport as follows:

  • 10m2 or larger
  • Higher than 2.4m
  • Any size that’s attached to another building

In a residential zone, a shed generally can be built as below:

  • Carport length is 9m or less; 1m boundary setback
  • Carport length is 9m or more; 1.5m boundary setback
  • Located on secondary street; 1.5m setback regardless of carport size

Important note: 

  • Carports are included in the front setback calculation
  • Carports constructed at right angles to the street may need a 3m setback

Deck

A building permit is required for any deck. A deck is required to be:

  • Setback a minimum of 0.9m from any boundary
  • A deck 0.5m, or higher, within 7.5m of adjoining property requires screening to comply with 5.4.1 Visual Privacy of the Residential Design Codes for single dwellings

Water tanks

A building permit is required for a water tank 5000 litres or larger. In a residential zone, a water tank generally can be built as below:

  • Made from steel, fiberglass, stone, concrete or plastic
  • Base of the water tank is to be directly on the ground, or 
  • Supported by a manufacturer designed stand no higher than 0.3m

Important note: 

  • A water tank cannot be located in a property’s front yard or visible from streets
  • Planning approval may be required in certain property zones, or
  • If a water tank is larger than 90,000 litres

Pergola or shade sail

A building permit is required for a pergola or shade sail as follows:

  • 20m2 or larger
  • Higher than 2.4m
  • A pergola or shade sail can be attached to a building or freestanding

Important note: 

  • A pergola or shade sail cannot be attached to a boundary fence, or 
  • Protrude or have water run-off into a neighbouring property

How to apply for a building permit

Visit the 'Building permit applications' page for information on how to apply, including fees.

Page Last Reviewed 25 July 2022