INTERVIEW: MONIKA TU, Founder / Director Black Diamondz Group
Where her Chinese-focused business is headed given ongoing COVID constraints.
Where her Chinese-focused business is headed given ongoing COVID constraints.
Monika Tu doesn’t mince words. Nor does she carry any passengers.
How else to explain what is now a rather well-worn tale – a story, hers, that details a Chinese immigrant who landed in Australia from Shenzhen in 1988 without any English.
She studied, claimed an RMIT scholarship and subsequently turned a basic market stall into a successful international electronics business. She’s since found incredible acclaim — and arguable dominance — as a property agent within Sydney’s tightly-held prestige property market.
There’s more to her work than simply opening residential doors — helping to forge and foster cultural and community links for her largely immigrant (predominantly from China, Middle East, Europe) client list, alongside arts philanthropy and an unwavering dedication to each and every day.
We caught up with Tu to discuss the difficulties of 2021 — and to better understand the road ahead.
Kanebridge News: There’s an incredible resilience that seems to frame the Sydney prestige market – but how difficult was 2020 in regards to your business and key clients?
Monika Tu: Obviously, Covid-19 had huge impacts on many businesses last year and ours was no exception. The restrictions on international travel hit us hard, however, we saw a surprising rise in local Chinese buyers wanting to buy a property quickly. People may think that most of our buyers are international. However, that’s not the case and many of these people had been holding out for the ‘perfect’ property — but when Covid hit they relaxed their expectations slightly because their main aim was to secure a property.
KN: And how do you view the road ahead?
MT: I see the market continuing to do well. The prestige market will always follow a different trajectory to the general market, but I don’t see things slowing down. With the influx of movie stars and wealthy individuals wanting to call Australia home, there’s only one way prestige property is going, and it’s up.
KN: There’s a belief in some economic quarters that things must naturally end, and soon.
MT: People have always said this, even prior to the pandemic. But Sydney and Australia’s prestige property market is robust, resilient, and has proven itself repeatedly. As long as Australia is seen as a world-class lifestyle destination, people will always be willing to pay.
KN: What was the allure of property that made you start Black Diamondz?
MT: If I’m honest, it wasn’t so much the allure of property that made me start Black Diamondz. It was the gap in the market of servicing the multitude of high net-worth individuals, predominantly from China, who were looking to call Australia home. Some agents were more than capable of finding them a great property but could not open other doors such as schools, lifestyle, business opportunities, networking, and philanthropy. This is the gap that I knew I was able to fill.
KN: How did you get your start in the prestige market?
MT: Black Diamondz really started by chance. There were a lot of conversations at the dinner table about new migrants searching for luxury homes, but a lack of services or guidance for them when it came to making decisions. One of my friends had a friend from China looking for a property and was having no luck with local real estate agents. I took him for a drive around Sydney’s Eastern Suburbs and just asked him what type of house he liked. He picked one, I knocked on the door and the owners said it was not for sale. Fast forward five days later and they sold it for $13.5 million. That is when I realised the need for this type of service was out there and took full advantage.
KN: Does the size of the deal you’re working to close ever intimidate, or is it something that drives you?
MT: For me it’s never about the size of the deal. I treat a $5 million apartment with the same work ethic that I treat a $50 million home. For me it’s all about giving my clients, both buyers and sellers, the very best experience possible.
I love smashing records, like selling Sydney’s most expensive home in 2019, but those things don’t happen every day and if that’s what drives you, you won’t last long in real estate.
KN: What do you think gives Black Diamondz a competitive edge?
MT: On the surface, it’s our proven ability to achieve consistent, market-leading results over the past ten years, as well as our international database. But deeper than that is our standing within the community. I know almost everyone in Sydney, and I have nurtured these relationships over the years. This is the key to a successful real estate business — your network and influence.
KN: You’re a self-confessed workaholic, is that a necessary mindset to achieved success especially in the market you work?
MT: I think the entrepreneurial mindset I have is what has made me successful — not only in real estate but in life. I never stop working but I also don’t see it as work, it’s my life and it’s what I do day in, day out.
Rugged coastal drives and fireside drams define a slow, indulgent journey through Scotland’s far north.
A haven for hedge-fund titans and Hollywood grandees, Greenwich is one of the world’s most expensive residential enclaves, where eye-watering prices meet unapologetic grandeur.
A haven for hedge-fund titans and Hollywood grandees, Greenwich is one of the world’s most expensive residential enclaves, where eye-watering prices meet unapologetic grandeur.
Greenwich, Connecticut, is in New England (just barely), but that doesn’t mean it’s a quaint, sleepy small town with covered bridges and white churches on the green.
It’s leafy, certainly, but it’s also a luxury-minded power centre close to New York City, with many celebrity residents (director Ron Howard, singer Diana Ross, actor Meryl Streep and, at one time, Australia’s own Mel Gibson).
The main shopping street, Greenwich Avenue, is home to brand stores such as Hermès, Kate Spade, Saks Fifth Avenue, and Tiffany & Co.
And Greenwich, particularly in the “back country” north of the Merritt Parkway, is host to some of the most exclusive real estate in the world.
The average price for a single-family home in the second quarter of 2025 was USD $3.25 million (AUD $4.9 million). But that’s merely an entry point, buying a smaller home in one of the town’s less desirable neighbourhoods.
What does USD $43 million (AUD $66 million) buy in Greenwich?
Last autumn’s most expensive listing offered a 1,068-square-metre waterfront home with eight bedrooms and 11 bathrooms, plus “Gatsby-like lawns”, a gym, games room, party room, wine cellar, fruit orchard, pool and spa. The front and side porches have heated floors.
Prefer something more traditional and secluded? For USD $33 million (AUD $50 million), buyers could close on an 11,760-square-metre Georgian manor on 3.2 hectares, featuring eight fireplaces, an elevator, and a dumbwaiter.

The first floor features a three-storey cascading chandelier. For bibliophiles, there’s a two-storey mahogany library. If bocce is more your pace, a similar USD $25 million compound on 7.5 hectares, built for a liquor magnate in 2009, may appeal. Fourteen bathrooms should suffice.
The Greenwich market is strong, but not without challenges.
“The big problem is that there’s no inventory,” said Evangela Brock, an agent with Douglas Elliman. “It’s extremely low at all price points.”
In November, just 15 properties under USD $1 million (AUD $1.52 million) were listed without contracts, compared with 23 above USD $10 million (AUD $15.2 million). Of those, six had contracts pending. Greenwich has more than 17,000 single-family homes.
Kanebridge Quarterly toured two mid-priced houses in Greenwich. “You don’t lose money in Greenwich real estate,” said Beth MacGillivray, a realtor with the Higgins Group. “This is the hot spot.”
MacGillivray opened the door to a 733.9-square-metre Georgian colonial in the Sherwood Farms Association development her family built in 2005. The house was expected to sell for about USD $5 million (AUD $7,743,535).
The six-bedroom, four-level house is move-in ready, with staged furniture showing its potential and many of the amenities that buyers in this range expect.
Visitors enter through a two-storey foyer with a marble floor. A circular staircase leads to an airy living room with double-height ceilings.
There’s a main bedroom with his-and-hers bathrooms, a cherry-panelled library with cigar-smoke venting, five fireplaces, and a state-of-the-art kitchen with a breakfast nook by Greenwich-based designer Christopher Peacock.
Most rooms have huge walk-in wardrobes. Even the laundry room has granite countertops. Custom millwork, cabinetry and fixtures are evident throughout.
The drawbacks? A smaller yard and no pool. Still, refugees from the city would marvel at the abundant interior space.
Not far away, an entirely different house was on the market for USD $2.66 million.
The imposing 696.7-square-metre, nine-bedroom, seven-bath Georgian/Federal home on Shady Lane in the Glenville neighbourhood was built in 1900. Its good bones and inherent grandeur were apparent, as was a clear need for updating.
“It’s a good project for someone,” said realtor Kaori Higgins. “It needs the right buyer, someone who is looking to return it to its stately original condition.”
Given the hot market, some buyers may be tempted to tear it down and build anew.
But the house is filled with charming period details, including hand-built stone fireplaces, reading nooks, pocket doors, leaded windows and beautiful original millwork.
The second floor offers a vast veranda with views of Long Island Sound and a built-in swimming pool.
The drawbacks? Bathrooms that were awkwardly redesigned in the 1970s, unsightly flooring on the upper levels, and crumbling exterior elements.
Higgins noted that a nearby sister property, fully renovated, sold for USD $11 million (AUD $17 million). Any buyer of Shady Lane’s faded elegance would need both imagination and deep pockets.
For contrast, Kanebridge Quarterly left Greenwich for nearby Fairfield’s upscale Greenfield Hill neighbourhood to visit Lion’s Gate, a 595 square metre Tudor Revival home built as a modest dwelling in the 1920s but extensively expanded and remodelled in 2000.
With three acres of land, a guest cottage, an artist’s studio and a pool house, the asking price is USD $3.3 million (AUD $5 million). Like the Sherwood home, Lion’s Gate is flawlessly move-in ready, with designer touches throughout.
The entire second floor was added during the renovation and features parquet flooring, a massive main suite, arched doorways and 2.74-metre ceilings.
Many rooms include walk-in wardrobes, extensive carved millwork and built-ins. The wood-panelled library (on the site of the former stable) is warm and inviting.
The expansive kitchen includes a window seat with a hand-painted ceiling, a wine cooler and a butler’s pantry.
Realtor Lorelei Atwood said Fairfield faces the same inventory shortage as Greenwich.
“Demand is growing as more New York-based executives are being told they have to report to the office,” she said. “Fairfield has always been a commuter town.”
Why is this home USD $3.3 million (AUD $5 million), and the Sherwood property around USD $5 million (AUD $7,743,535)?
Location. Greenfield Hill is lovely, but Greenwich real estate occupies a rarefied class of its own.
Note: Thanks to realtor Sherri Steeneck for chaperoning.
This story appeared in the Autumn issue of Kanebridge Quarterly, which you can buy here.