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With a mantra of "Moving You Forward," Sean is driven by a passion for collaborating with others to achieve the best possible outcomes in all aspects of real estate.

With 20 years of experience in the real estate market, he places a strong emphasis on providing honest, professional service.

The synergy of working with the supportive team at Realmark, combined with open, transparent communication and market evidence, offers clients peace of mind, knowing their property is in capable hands.  

Originally from South Africa, Sean has called Perth home since 1999. He holds a Bachelor's Degree in Economics and Marketing and has traveled extensively throughout Africa and the United States.

His diverse background, which includes experience in small business and the film industry, equips him with a broad skill set for the real estate field.  

Sean enjoys the outdoors and action sports, such as ocean paddling and competitive sailing. He resides in Karrinyup with his wife and two children.

His commitment to clients is reflected in his promise: “Honest, reliable, and professional service that is second to none."

Dave Seah was born in Singapore and came to WA in 2011 where he graduated from UWA with a Commerce Degree in Accounting & Finance.

With a background in marketing as well (Degree in Mass Communication), he was introduced into Real estate in 2012 and joined the Realmark North Coastal team in 2018 with over 5 years’ experience in the industry.

He specialises in Greenwood, Warwick and surrounds where his hard work and dedication has made him a local favourite.

You can find him every Wednesday between 9.30am and 10.30am at 5 Points Cafe in Greenwood. Drop by to say hi for a free coffee and a chat about your real estate needs.

With nearly 24 years of experience and closing in on his 1000th property sale, Paul has built a trusted reputation for achieving record-breaking results across Mandurah and the Peel region.

Paul’s clients benefit from his accurate pricing strategies, sharp negotiation skills and ability to position every property to achieve the highest and best outcome.
As a proud Dawesville resident and active member of the Port Bouvard Recreation & Sporting Club, Paul combines local knowledge with a strong network across the community.

Approachable, professional, and tireless in his efforts, Paul’s focus is simple: to ensure sellers are never undersold and always move forward with confidence.

Simon is the Owner and Selling Director at Realmark Mandurah, where his deep-rooted passion for real estate and decades of expertise in the Mandurah property market drive results. Known for his commitment to both clients and the community, Simon pairs his local insights with a strategic, customer-focused approach to deliver exceptional sales outcomes across Mandurah and surrounding areas.

Having called Mandurah home and working in real estate in the area for over 20 years, Simon’s deep understanding of the local market gives him—and his clients—a competitive advantage. He specializes in helping homeowners achieve premium sale prices by leveraging his in-depth market knowledge and innovative selling strategies.

Simon’s dedication and achievements have been recognized with multiple industry awards from Realmark and the Real Estate Institute of WA, including the Medium Residential Agency of the Year and a Community Service Award.

Simon is more than a real estate leader; he's a cornerstone of the local community. A proud sponsor of the Halls Head Junior Football and Netball Club, Simon also plays a hands-on role in shaping future generations through his coaching of junior girls’ AFLW teams.

Additionally, as a committee member for the Mandurah Board Riders Club for over a decade—and its President for the past five years—he’s a dedicated advocate for the local surf community.

Simon’s commitment to preserving Mandurah’s natural beauty is further reflected in his membership on the Coastal Community Reference Group for the Southern Beaches CHRMP, focusing on sustainable coastal management.

Outside of work, Simon is a devoted family man, raising three children with his wife in Mandurah. For him, helping families find the right property or secure the best investment is not just work—it’s a personal mission rooted in the love for his hometown.
To discuss your property ambitions, reach out to Simon directly on 0407 072 442 and experience a fresh perspective on Mandurah real estate.

Natalie brings energy, care, and confidence to every property transaction she undertakes, making the experience not just smooth, but a genuinely enjoyable experience for all involved. With a sharp eye for detail and a warm, client-focused approach, she ensures each sale runs seamlessly from start to finish and every party receives a fabulous result- always working to deliver the best outcome.  

Clients often highlight and celebrate her clear communication, in-depth market insights, and her skill to keep them in the loop every step of the way. Just as importantly, they value her strong negotiation skills, a key factor in securing standout results.

As one client shared:  "Nat was extremely helpful and patient. She kept us up to date and informed every step of the way. Her amazing knowledge of the real estate market helped us explore different options when selling our home. We absolutely recommend her and will definitely work with her again in the future."  

With more than 15 years in real estate, backed by a degree in interior design and experience in property law and settlements, Natalie brings a unique mix of skills to the table. She knows how to highlight a home’s best features, market it strategically- appealing to a whole pool of buyers and, finally, negotiate effectively to ensure her clients achieve the best possible price.  

"Selling our first home with Natalie was an absolute breeze," said another happy client. "She guided us through every detail, provided regular updates, and achieved the results we hoped for with a Set Date Sale."  

Focusing on the Swan Valley corridor, Natalie offers a tailored approach for both buyers and sellers. From styling to strategy, Nat delivers care, insight and a refined personal touch- skilfully showcasing your property to stand out while also applying insight, finesse, and strategic thinking to every stage of the sales process. Her clients know she will go the extra mile not only to make their experience as stress-free as possible, but to negotiate with precision and achieve an outstanding result.  

"Natalie’s knowledge of the market was excellent, and her marketing strategy was tailor-made for the best results," said another client- a true reflection of the trust she builds and the outcomes she delivers through savvy negotiation and smart planning.  

So, if you want someone who truly cares, fights for the best result, and has the strategy and negotiation skills to back it up- Natalie’s here to help make your next move the best one yet.

With over 15 years of experience in buying and selling properties along the stunning north coast, Mandie brings not just expertise but an unmatched passion for helping her clients succeed.

What truly sets her apart is her deep commitment to every client’s success, making her more than just a real estate agent—she's your dedicated partner in achieving your property goals.

Mandie goes beyond facilitating transactions; she’s there every step of the way, simplifying even the most complex real estate processes so that her clients feel empowered and confident. 

Her professionalism isn’t just a trait, it’s her hallmark, setting her apart in a highly competitive market. 

With Mandie by your side, navigating the real estate world becomes not just manageable, but truly extraordinary.  

Her clients are quick to sing her praises:  "Mandie has been amazing and made the whole process stress-free. We really appreciate everything she did to sell our property, from her friendly and fun nature to her professionalism and hard work.

Mandie achieved a great result for us—thank you!" – Charlotte G.  "If you want an agent who knows the market, understands your needs, keeps you informed at all times, and makes the selling process stress-free from sign-up to settlement, all while getting you a great price, then you need to choose Mandie Cubeddu.

We could not have hoped for a better selling experience." – Veronica S.  Clients also rave about her creativity and bold approach. As Jean L. put it: "Very creative and very bold, with a great personality."  

Her dedication shines through in every interaction. "Mandie was great from first contact. Her honesty, continual availability, and commitment ensured a great result in the sale.

I recommend her 100%," said Mark V.  Vicki, another satisfied client, shared: "Mandie’s attention to detail and deep market knowledge helped us get the sale price we wanted.

Her transparency and honesty earned our trust, and she went above and beyond to get our house sold.

I appreciated how she made everything easy to understand—thank you, Mandie!"  David and Alice echoed similar sentiments: "From preparing our property for the market to its quick and painless sale, Mandie worked tirelessly to ensure we achieved the best possible outcome.

We highly recommend her and will definitely be using her again—by far the best agent we’ve ever worked with."  Mandie’s blend of expertise, creativity, and unwavering commitment to her clients makes her the ultimate choice in the real estate world.

Dave Seah was born in Singapore and came to WA in 2011 where he graduated from UWA with a Commerce Degree in Accounting & Finance.

With a background in marketing as well (Degree in Mass Communication), he was introduced into Real estate in 2012 and joined the Realmark North Coastal team in 2018 with over 5 years’ experience in the industry.

He specialises in Greenwood, Warwick and surrounds where his hard work and dedication has made him a local favourite.

You can find him every Wednesday between 9.30am and 10.30am at 5 Points Cafe in Greenwood. Drop by to say hi for a free coffee and a chat about your real estate needs.

Ian entered into real estate in 2000 making the transition from serving 15 years in the Royal Australian Air Force.  Core values of professionalism, work ethic, honesty and integrity that were a part of his life from when he started his military career at age 16 have naturally transitioned into his highly successful career in real estate. Ian’s skill set is in residential real estate marketing, sales and negotiation.  

Having specialised in Duncraig and surrounding suburbs and working in our Duncraig office at Realmark North Coastal since he came into real estate he is trusted, well known and highly respected both by clients and fellow real estate practitioners.

He comes to you with a passion for helping families in their real estate journey.  He’s a family man himself, highly likeable, has a wealth of real estate knowledge and is the perfect real estate agent to always have in your corner.

Priding himself on being authentic in everything he does; his motto for life is “I just treat people the way I would want to be treated myself.”  

This ethos has seen him create a name for himself within real estate and particularly Duncraig as being a hard working straight shooter.  

With in excess of 500 sales he comes to you with a wealth of real estate experience which is not only called upon by his extensive network of repeat clients but also his peers.  Sales and marketing specialty include: residential property off the plan development in single storey and multi storey apartments and strata auctions.

One of the major factors that distinguishes me from other agents is the fact that I live and work in the Northern coastal community. This means, I am on the ground and active in my core area, allowing me to provide you with the most up-to-date market research and advice so you can make the best decisions when selling what is potentially your biggest asset.

With close to a decade of real estate experience, having worked for both buyers and sellers, I have a wealth of knowledge and a real love for people. I pride myself on trust and transparency and have the dedication and determination that you can rely on. You can trust that I will always be in your corner fighting to achieve the best result for you.

The selling experience might be confusing at times, or even overwhelming for some. I’ll make sure you have a pleasant and enjoyable experience from start to finish and make the ‘too hard’ seem almost ‘too easy’. My proven processes, creative marketing and leading technologies will ensure your property is given the best chance to reach more buyers, which in turn means more offers for your property.

In my spare time, I’m quite the green thumb with an extensively abundant garden oasis in my backyard. I love being on the coast and am always keen to take you for a coffee to discuss all things property, so if you’re considering selling, give me a call. Let's have a chat to discuss how I can use my extensive skills to maximise the sale of your home to ensure you’re not undersold.

Nathan is supported by his executive assistant, Laura, who ensures meticulous organisation and the seamless execution of operations, enabling him to focus on delivering outstanding results for his clients.

Dave Seah was born in Singapore and came to WA in 2011 where he graduated from UWA with a Commerce Degree in Accounting & Finance.

With a background in marketing as well (Degree in Mass Communication), he was introduced into Real estate in 2012 and joined the Realmark North Coastal team in 2018 with over 5 years’ experience in the industry.

He specialises in Greenwood, Warwick and surrounds where his hard work and dedication has made him a local favourite.

You can find him every Wednesday between 9.30am and 10.30am at 5 Points Cafe in Greenwood. Drop by to say hi for a free coffee and a chat about your real estate needs.

One of the major factors that distinguishes me from other agents is the fact that I live and work in the Northern coastal community. This means, I am on the ground and active in my core area, allowing me to provide you with the most up-to-date market research and advice so you can make the best decisions when selling what is potentially your biggest asset.

With close to a decade of real estate experience, having worked for both buyers and sellers, I have a wealth of knowledge and a real love for people. I pride myself on trust and transparency and have the dedication and determination that you can rely on. You can trust that I will always be in your corner fighting to achieve the best result for you.

The selling experience might be confusing at times, or even overwhelming for some. I’ll make sure you have a pleasant and enjoyable experience from start to finish and make the ‘too hard’ seem almost ‘too easy’. My proven processes, creative marketing and leading technologies will ensure your property is given the best chance to reach more buyers, which in turn means more offers for your property.

In my spare time, I’m quite the green thumb with an extensively abundant garden oasis in my backyard. I love being on the coast and am always keen to take you for a coffee to discuss all things property, so if you’re considering selling, give me a call. Let's have a chat to discuss how I can use my extensive skills to maximise the sale of your home to ensure you’re not undersold.

Nathan is supported by his executive assistant, Laura, who ensures meticulous organisation and the seamless execution of operations, enabling him to focus on delivering outstanding results for his clients.

Casey has joined our Realmark Sales team after her successful time in Newman. Her desire to achieve the best results for her clients has ensured her reputation is second to none, with an open and honest approach to her tasks.

Having lived in the Pilbara for 20 years and raising her family here, Casey is very aware of the highs and lows of real estate and the need for sound advice and knowledge of the unique marketplace. She brings an energetic and enthusiastic approach to her connections

Casey enjoys the outdoors and spending time with her family and is looking forward to renovating her recently purchased housed here in Karratha.