Deep within the heart of Australia, there's a captivating $30 million estate belonging to the mysterious Zammit family. Many developers are eager to acquire it, but the family remains steadfast in their decision that it's "not for sale."

The folks who own a sought-after piece of Australian land, which developers are clamoring for and could be valued at over $30 million, have given those developers a firm "no" and made it clear that the land is still not up for sale.

The house has held its ground in that very spot for decades, just like the owner's family, who are determined to block any attempts to develop their land, no matter what.

The house is encircled by a spacious garden and currently sits amidst a sea of freshly constructed homes in the neighborhood.

Even though they've been offered a lot of money to vacate, the Zammit family has been on this land in Sydney for a very long time and intends to stay put.

These amounts just keep going up.

The family, on the other hand, has advised folks who aim to flatten their land and construct numerous fancy homes there to "keep dreaming."

In simpler terms, they're not interested in moving to a smaller place, and the land isn't up for grabs, so kindly drop the topic.

It kind of catches your eye in the neighborhood, as you can tell from the pictures.

The house and its garden are situated in The Ponds, a Sydney neighborhood that has seen hundreds of homes pop up around it over the years.

Their five-bedroom house sits on 1.99 hectares, which is spacious enough for 50 homes similar to the ones in the surrounding area.

Yet, the Zammit family remains steadfast while other neighbors have sold their properties and left, making way for developers to move in.

They were offered millions, but they turned down every single one.

Local broker Taylor Bredin expressed his admiration to 7News, stating even his fellow brokers are impressed. "The fact that most people sold out years and years ago, these guys have held on."

"All credit to them."

He continued: "Depending on how far you push the development plan, you'd be able to push anywhere from 40 to 50 properties on something like this, and when subdivided, a 300 square meter block would get a million dollars."

This suggests that the whole thing would be a lot more valuable than that.

Approximately £25 million, which is about $30.5 million in American money.

The Zammits continued living their lives as usual until their house was the sole survivor from the original buildings in the area.

As per Diane Zammit, the area was once famous for its "farmland dotted with little red brick homes and cottages."

She shared with Daily Mail Australia: "Every home was unique and there was so much space - but not anymore."

"It's just not the same."

However, they have no plans to leave, and she has some advice for any developers tuning in: "Tell 'em they're dreaming."

Even folks new to the neighborhood have gratitude for the Zammits for standing their ground.

One nearby resident shared: "I'm very happy they've refused to sell - it means we have a cul-de-sac which is much safer for our kids - and their big lawn next to us makes it feel like we've got so much space."

"Our neighbors don't get that because the other houses are so close together.

"We're very grateful! I hope they stay."

They definitely don't appear to be going anywhere anytime soon.