Decking in Jindalee

Northern Decking Co builds pool and composite decks in Jindalee, a new beachside estate in the City of Wanneroo. Most jobs are a first deck on a recent house, planned around the pool or the alfresco slab, with 316 stainless fixings for salt and chlorine. Every deck needs a Wanneroo building permit, and the contractor quotes free on site.

Postcode
6036
Council
City of Wanneroo
Coastal lot rules
Apply
Last reviewed
October 2026

Decks that suit Jindalee homes

Jindalee is one of the newest coastal suburbs in the corridor. Planning started in 1997, the Butler-Jindalee District Structure Plan was approved in November 2003, and building picked up in the late 2000s with Brighton Beachside, a Satterley estate of around 900 lots developed with the Department of Housing and Works. The suburb is still filling in toward the foreshore, so a Jindalee deck is almost always a first deck on a recent house: an alfresco at the back, a pool going in or already in, and a lot where the fences are new and the lawn has not settled yet.

Pool decks planned with the pool

Pools go in early on a Jindalee build, often before the landscaping, and the best time to plan the deck is the same time. A composite pool surround with a textured, pool-grade finish gives wet feet a surface that grips, drains away from the shell and stays cool enough in a west-facing yard. The deck is detailed so it does not shorten the effective height of the pool barrier or give a foothold in the non-climbable zone, and the fixings are 316 stainless because chlorine and sea air together are harder on metal than either alone. Our pool decking page shows how the deck and barrier are set out together.

Extending the alfresco on a new lot

Where there is no pool, the job is usually a low deck off the alfresco slab, level with the sill so the indoor floor runs straight out. Composite is the common choice for young households that would rather hose a deck than oil it, with hidden stainless clips and a picture-frame border where it meets the lawn. These lots are not wide, and the City of Wanneroo says decks should be set back at least 900 mm from a boundary, or can go to the boundary if 900 mm is kept between the deck and the house, subject to overlooking rules. The contractor lays the deck out to that rule from the first sketch.

The permit comes first

In the City of Wanneroo all decking requires a building permit, regardless of height or floor area, so even a low deck beside a new Jindalee house goes through the City before the stumps go in. Planning approval may also be required for decking over 500 mm above natural ground level, which matters on the lots that step down toward the coast.

Sand over limestone at the foreshore

The foreshore reserve at Jindalee sits on shallow calcareous sand over limestone, and that record is about the reserve, not the house lots behind it. On most blocks the footings go into sand, and the contractor treats the first hole as the test rather than assuming either way.

What to know before you build in Jindalee

Council rules, the coast, the ground and the bushfire map.

City of Wanneroo

  • All decking requires a building permit, regardless of height or floor area.
  • Planning approval may be required for decking over 500 mm above natural ground level.
  • Decking over 500 mm is treated like a balcony, with a 7.5 m setback to side and rear boundaries unless a reduced setback is approved.

Source: City of Wanneroo, decking. Checked September 2026. Confirm with the City on 9405 5000 before work starts.

Salt air

Jindalee is a coastal suburb, so the fixings, hangers and stirrups are stainless steel and the frame is detailed to dry out. Composite boards suit lots within reach of the sea breeze; hardwood works too when it is oiled and fixed properly.

The ground

The foreshore at Jindalee is shallow calcareous sand over limestone, and a survey of the foreshore lot found hard limestone caprock in nine of twelve boreholes, roughly 120 to 150 m back from the coastal vegetation line. That is a foreshore record, not a house lot, so footings are expected to go into sand and the first hole is the test.

Bushfire map

Check your lot on the DFES Map of Bush Fire Prone Areas. If it is inside a mapped area the deck is built to the BAL requirements of AS 3959. We do not say here whether Jindalee is or is not bushfire prone, because the map runs through suburbs and is revised.

How it goes in

Axonometric drawing of a deck being built: set-out, footings, bearers, joists, boards and finish limestone in parts of the far northcoastal sand42003600450 crs400 crsgap412 high
The six stages are described in the list beside the drawing.
Board material
  1. Footings

    Stumps go into footings in the sand. Some sites in the far north hit limestone close to the surface and need core drilling.

    Sand across most of the corridor takes a standard footing. Limestone near the surface changes the method, not the deck.

  2. Joists

    Joists go across the bearers at the centres the board maker specifies, typically 450 mm for hardwood and tighter for composite.

    A ledger fixed to the house carries the first end of each joist in a hanger.

  3. Boards

    Boards are laid from the house out with an even gap, fixed with screws or hidden clips.

    Stainless fixings on coastal lots. The gap lets water through and lets timber move.

Questions from Jindalee

Should the pool deck go in with the pool on a new Jindalee lot?

Ideally, yes. Planning the deck with the pool lets the contractor set the deck height, the barrier and the drainage together, so the deck does not shorten the effective height of the pool barrier or create a foothold in the non-climbable zone. Composite with a textured, pool-grade finish and 316 stainless fixings is the usual build.

Do I need a permit for a low deck beside my new Jindalee house?

Yes. In the City of Wanneroo, all decking requires a building permit, regardless of height or floor area. Planning approval may be required for decking over 500 mm above natural ground level. Ask for the quote to say who prepares the drawings and who lodges the application.

How close to the fence can a deck go on a Jindalee lot?

The City of Wanneroo says decks should be set back at least 900 mm from a boundary, or can go to the boundary if 900 mm is kept between the deck and the house, subject to overlooking rules. On a narrow estate lot that rule often decides the width of the deck, and the contractor designs to it from the first sketch.

Will my footings hit limestone in Jindalee?

It is possible but not the expectation. The limestone record for Jindalee comes from a survey of the foreshore reserve, where most boreholes hit hard caprock, not from house lots. On most blocks the footings go into sand. If the first hole finds rock close to the surface, the contractor core drills that footing and tells you before the quote is final.

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