Flat Roof Patios in Murray

Pinjarra is one of the older inland towns in this part of the state, and the townsite has the building stock to match. Older cottages, heritage buildings around the centre, and newer housing spreading out from it.

Ravenswood, Barragup and Furnissdale are lifestyle country. A mix of estate housing and semi-rural lots between the highway and the river, mostly built from the 1990s onward.

North and South Yunderup are the outlier. Canal and river frontage housing where the water is at the bottom of the garden, and where a patio is usually oriented to the view rather than to the back door.

On those blocks a flat roof earns its keep twice over. It is a thin object against a wide outlook, and running the fall back toward the house lifts the outer edge so the sightline stays under the roof from a seated position inside.

The Murray has a genuine floodplain and plenty of housing sits on or near it. Flood levels for this river are mapped, and the shire holds the information for a given property.

That matters for a patio in two ways. Finished levels and footing design can be affected on low ground, and a soakwell in already saturated winter soil has nothing left to offer a storm.

So the levels get established before the layout is drawn. It is a half-hour question at the start of a job and an expensive one halfway through.

Overflow gets designed rather than hoped for. On flat river ground the water leaving a full soakwell will find the lowest point on the property, and the point of the exercise is making sure that is not the back door or the shed slab.

People on the canals ask whether they need the same steel as a beachfront house, and the honest answer is that it depends how close to the water they are.

Brackish estuary and canal water with an onshore breeze does put some salt in the air, but it is a milder environment than an ocean frontage at Port Kennedy. It is not nothing, and it is not that.

A canal block at South Yunderup gets a closer look than a Pinjarra town block. We specify against the address, which sometimes means upgrading the fixings without going to full marine sheet.

Anyone living near the Peel-Harvey estuary knows the seasonal midge and mosquito activity, and a patio is exactly where people sit at the hours they are worst.

So insect screening is worth designing in rather than bolting on. Fixing points, tracks and a frame that suits screens later cost almost nothing at build time and are awkward to retrofit neatly.

Lighting is the part people miss. Bright white light draws midges in from a long way, so warmer, lower-intensity fittings placed away from the seating edge do more for a summer evening than any spray.

Dwellingup sits in jarrah forest and the design conversation there has nothing in common with a canal block. Bushfire is the first consideration, not the last.

Where the address is mapped as bushfire prone, an assessment sets the attack level, and a Class 10a structure close to the house is generally held to the same construction requirements as the dwelling.

The ground changes too. Lateritic gravel and rock replace the sand and silt of the plain, footings can meet rock early, and long unsealed driveways set the maximum length of sheet that can reach the build.

A building permit from the Shire of Murray is required before construction, because a patio is a Class 10a structure. The pack is a site plan, elevations, structural engineering and a stormwater design.

Rural zoned land runs under the local planning scheme rather than the R-Codes, with its own setbacks and site coverage. On unsewered lots the effluent disposal system has to be located first, because you cannot put a footing through one or roof over the disposal area.

Distance is the last honest point. This is a drive from Perth, so we consolidate the site measure, the delivery and the install rather than making four separate trips, and the program gets built around that.

It changes how decisions get made rather than what gets built. Colours, sizes and post positions are settled properly at the measure, because a second trip to move a post half a metre is not a small thing from this far out.