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With a mantra of ‘Moving You Forward’, Sean is passionate about working together with people to achieve the very best outcomes in all areas of real estate. With 18 years of experience in Perth’s real estate market, he places a strong emphasis on honest, professional service. The synergy of a supportive team at Realmark together with open, transparent communication backed by solid market evidence provide his clients with the peace of mind that their property is in the right hands.

Originally from South Africa, Sean has called Perth home since 1999. After achieving a Bachelor’s Degree in Economics and Marketing, he travelled extensively though Africa and the United States.
With a background in small business and the film industry, Sean brings a diversity of experience and skill to the real estate arena.
Sean loves the outdoors and action sports including ocean paddling and competitive sailing. He lives in Karrinyup with his wife and two children.
‘My service to you will be second to none : Honest, reliable & professional’

With over 20 years of experience connecting with people, understanding their needs and delivering results, Mandie Cubeddu has built a real estate career that is as much about people as it is about property.

Having personally renovated and flipped homes, Mandie brings hands on property experience and genuine market knowledge to every transaction. This insight allows her to guide sellers and buyers with confidence, honesty and a practical understanding of what it takes to achieve an outstanding result. Her reputation is built on energy, integrity and a relentless drive to achieve premium results. Mandie prides herself on making the buying and selling process as seamless as possible, keeping her clients informed, supported and confident every step of the way. 

Proudly representing Realmark North Coastal, Mandie combines award winning marketing, personal commitment and a results driven approach to deliver a better real estate experience — and better results.

Dave Seah was born in Singapore and came to WA in 2011 where he graduated from UWA with a Commerce Degree in Accounting & Finance. 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 over 7 years of experience in the real estate industry, James has established himself as a trusted expert in the Mandurah area. Having joined the Realmark team in 2024, he hit the ground running working with buyers and sellers across the Mandurah & Rockingham regions.

James excels in problem-solving, leveraging his keen attention to detail to ensure that every client receives the personalised service they deserve. His patience and understanding also allow him to navigate the often-complex world of real estate with ease, making the buying or selling process as smooth as possible.

A lifelong resident of the Mandurah area, James appreciates the community’s charm and the opportunities it offers. He and his wife chose to build their home in Dawesville, a decision fuelled by their desire for a family-friendly environment. James finds joy in connecting with new people each day and takes pride in showcasing properties to highlight their best features.

In his free time, James enjoys dining out at local restaurants and spending quality time with his wife and their two beloved dachshunds, Kevin and Margaret. His love for the Mandurah community and its residents drives his passion for real estate, making him a dedicated advocate for clients."

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.

Frances has been selling in the northern suburbs since 2013, specializing in Duncraig, Carine & surrounds. She has invaluable knowledge of the local area & believes there is no better place to live, work and raise her two teenage sons. She is very involved in the community and loves the unmatched relaxed coastal lifestyle and family-friendly nature of the area.

She is a passionate, down to earth real estate professional, energetic & positive, always working hard to get the best possible outcome, providing continuous support throughout the entire buying and selling process. Her exceptional communication & negotiation skills together with professionalism and commitment to always go the extra mile ensures that clients are always in the very best hands.

Miles is a passionate sales consultant who has been helping people buy and sell homes in Mount Hawthorn and the surrounding areas since 2014.  Specializing in high-quality homes, Miles is known for his expertise in the Set Date Sale method, ensuring sellers achieve the best possible price through a clear process and strong negotiation tactics.  

His dedication to always acting in the best interest of the seller is at the heart of everything he does, and it’s what drives his exceptional results.  Living in Mount Hawthorn himself, Miles has a genuine love for the area and a deep understanding of the local market.  

His connection to the community goes beyond real estate, actively sponsoring and supporting local events at Mount Hawthorn Primary School.  One of the highlights of Miles’ community involvement is his annual Mount Hawthorn Halloween fundraiser.

This much-loved event, organized and funded by Miles, raises money for the Starlight Children’s Foundation, bringing the community together for a good cause.  For Miles, real estate has never been about property—but rather people.

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

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

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.

Frances has been selling in the northern suburbs since 2013, specializing in Duncraig, Carine & surrounds. She has invaluable knowledge of the local area & believes there is no better place to live, work and raise her two teenage sons. She is very involved in the community and loves the unmatched relaxed coastal lifestyle and family-friendly nature of the area.

She is a passionate, down to earth real estate professional, energetic & positive, always working hard to get the best possible outcome, providing continuous support throughout the entire buying and selling process. Her exceptional communication & negotiation skills together with professionalism and commitment to always go the extra mile ensures that clients are always in the very best hands.

Experience Authentic

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.

Ian’s 26 years of real estate experience and highly honed skills are not only called upon by his extensive network of repeat clients but also his peers.  We have no doubt that he is Your Best Move.

Greg Frazer brings a wealth of experience and a strong local presence to the Realmark Dunsborough team. With a distinguished real estate career that began in Perth, Greg made his mark as a top-performing agent in the Northern Suburbs, spending many successful years providing outstanding service & results for his clients.  

Having called the South West home for the past 15 years, Greg is deeply connected to the local community. During this time, he held a prominent role with GWN Channel 7, where his professionalism and personable nature earned him wide respect throughout the region.

Now returning to real estate with Realmark, Greg blends his extensive industry background with genuine local insight. He is passionate about helping people find the right property outcomes and delivering trusted advice with integrity.