/Watch fish under the house and goannas out of the window

Watch fish under the house and goannas out of the window

Recycled timber, nature all around and the rainforest at the doorstep.

The Australian Taxation Office revealed this month that the postcode of 2108 has the highest individual average taxable income in the nation.

The residents of prestigious Palm Beach are no doubt responsible for the honour but Great Mackerel Beach on the western foreshore of Pittwater is in the mix.

And perhaps the most affordable architect-designed house in this wealthy postcode is for sale.

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Neighbours buy on the beaches

A rare retreat sitting above the water with a northern aspect and views all around.

An architect-designed home at 28 Diggers Cres, Great Mackerel Beach has a price guide of $1.1 million and goes to auction on Easter Saturday.

The 14-year-old home is on 770sqm of land beside a saltwater lagoon and it is the last house in the suburb before the expansive Ku-ring-gai National Park begins.

Kathryn Hall, of Kathryn Hall Real Estate, said the house actually sits over the lagoon with its legs in the water and electrolysis stops the foundations from rusting.

“A visionary builder created this home, every window opens up to the lagoon and you are just 120m from the beach,” she said.

A popular spot for weekends away.

Owner Jeff Sharp has watched fish jumping out of the water and admired a pair of cranes who have taken up residence nearby. He bought the land in the late 1980s and built the innovative home more than 2m off the ground.

“You are looking at water all the time,” he said.

“I even watch wallabies swim across the lagoon and go to the beach.”

The long three-bedroom house has two pavilions and a joining hall. There are two bathrooms, an open-plan dining, lounge and state of the art kitchen plus generous entertaining decks.

One of the two decks at 28 Diggers Cres, Great Mackerel Beach.

“You can launch a kayak or paddle board from the decks straight into the water,” Mr Sharp said.

The house is made of century old recycled spotted gum and the hardwood is in the floors, cabinetry and louvre windows. Airconditioning, broadband and Foxtel internet access are included.

“You couldn’t build this home again here,” Mr Sharp said.

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Great Mackerel Beach on the western foreshore of Pittwater in the northern beaches consists of 135 blocks and between 30-35 per cent of residents live permanently in the foreshore community.

Short-stay rentals are also popular here with people escaping from the city for a weekend break in nature.

“It has a real wow factor,” Mr Sharp added.