OUR TEAM

We’re a passionate team committed to building thoughtful, high-quality spaces tailored to the unique needs and lifestyles of our clients.

With diverse expertise across construction, project management, and design, we take a collaborative approach — blending creativity with precision on every project.

LEADERSHIP TEAM

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ROWAN STREATER

  • Born and raised in Yallingup, Western Australia, Rowan has built his career from the ground up. Starting out as a carpenter in the mid-2000s, he spent years on the tools before founding his own carpentry company, Streater Group. That practical foundation shaped the builder he is today. Rowan understands every stage of the build because he’s done it himself.

    Over nearly two decades, he has led projects across residential, commercial, and aged-care construction, developing a reputation for his high standards, sharp eye for detail, and deep respect for craftsmanship. Many of the people who work alongside him today have been part of his journey since the early Streater Group days, a reflection of his loyalty and the strength of those relationships.

    For Rowan, relationships are everything — whether it’s with clients, trades, or long-term collaborators, he believes the best outcomes come from trust, transparency, and shared respect.

    As Managing Director of Mayfair Building Co, Rowan drives the company’s continued growth across Western Australia and New South Wales. He remains closely involved in each project, combining technical precision with genuine care for the people and project outcomes involved. Every job is personal to him.

    Driven, exacting, and passionate about his craft, Rowan sets the tone for Mayfair: a builder that values integrity, teamwork, and results built to last.

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WAYNE JONES

  • With more than three decades of experience in construction, project management, and education, Wayne brings technical expertise and operational rigour to every facet of Mayfair Building Co. His career spans residential, commercial, and aged-care projects across Western Australia and beyond, supported by an extensive list of industry qualifications and leadership roles.

    Before joining Mayfair, Wayne founded and led Builders Training of Western Australia, one of the state’s respected registered training organisations, where he developed nationally accredited programs and mentored hundreds of builders and tradespeople. His time as a TAFE lecturer also shaped a reputation for clarity, patience, and a genuine interest in helping others progress in the industry.

    Wayne has worked across all sides of construction — from inspecting and managing complex projects to writing the frameworks that govern industry standards. He has served on multiple government and industry advisory groups, authored training resources, and contributed to the development of Australia’s building education landscape.

    At Mayfair, Wayne plays a pivotal role in governance, safety, and compliance, ensuring that every project meets the company’s exacting standards. He’s also a trusted mentor within the team, offering guidance drawn from a lifetime of experience.

    Respected for his integrity and depth of knowledge, Wayne provides the steady hand that anchors Mayfair’s commitment to quality, safety, and continuous improvement.

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JOHN KRASENSTEIN

  • John brings financial discipline, strategic clarity, and a human touch to Mayfair Building Co. As Chief Financial Officer, he oversees the company’s financial operations, risk management, and strategic growth across Australia, ensuring each project is grounded in sound commercial insight.

    A Chartered Accountant with more than fifteen years’ experience across construction, mining, and corporate advisory, John has held senior positions at Deloitte, DDH1 Drilling, and Hall & Prior Health & Aged Care Group before joining Mayfair. His expertise in capital investment, forecasting, and financial modelling is matched by an ability to translate complex numbers into clear, actionable strategy.

    John shares deep roots in Western Australia’s south west, where teamwork, loyalty, and honesty are part of the DNA. Those values continue to shape how he leads — collaborative, direct, and committed to building strong relationships with colleagues, clients, and partners alike.

    John brings a competitive spirit and sense of camaraderie to his work in finance. For him, success is always a team effort — and that belief runs through every aspect of Mayfair’s culture.

OPERATIONS TEAM

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NATALIE MACLEOD

  • Natalie is the operational backbone of Mayfair Building Co, overseeing business management across Western Australia and New South Wales. With expertise spanning marketing, finance, HR, compliance, and project delivery, she ensures that every arm of the business runs smoothly and efficiently.

    Having worked alongside Managing Director Rowan Streater since the early Streater Group days, Natalie brings a rare depth of understanding to Mayfair’s culture, systems, and people. Her ability to balance commercial structure with agility makes her an essential part of both the day-to-day operations and long-term strategy of the company.

    With a Bachelor of Business majoring in Marketing, Natalie combines strategic thinking with sharp operational insight. She manages cross-divisional functions for Mayfair’s subsidiary businesses — including Hughes Electrical Group and Fremantle Plumbing Services — providing guidance that keeps the group cohesive, compliant, and future-focused.

    Known for her clarity, reliability, and no-nonsense approach, Natalie is trusted across the organisation as both a problem-solver and advisor. She is driven by integrity, teamwork, and a commitment to building systems that allow great people to do their best work.

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MASON PRIOR

  • Mason brings a creative and strategic perspective to Mayfair Building Co, guiding project delivery and design direction across both residential and commercial portfolios. His approach combines operational understanding with an instinct for innovation, ensuring that each project reflects both precision and personality.

    Before joining Mayfair, Mason held key roles within Hall & Prior Health & Aged Care Group, where he managed complex national development projects from design through to delivery. His experience in stakeholder engagement, design planning, and brand development has given him a unique ability to connect commercial objectives with creative outcomes.

    Mason’s background spans construction, technology, and brand innovation, including his founding of lifestyle label Lazy Waves, a design venture inspired by the Western Australian coastline. This broad perspective shapes how he leads today — with curiosity, adaptability, and a focus on continual improvement.

    As Project Director, Mason works closely with design and delivery teams to uphold Mayfair’s reputation for quality, functionality, and forward-thinking construction. His role reflects the company’s commitment to pairing strong technical leadership with creativity and modern design intelligence.

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LAUREN GAVRIEL

  • Lauren is the link between design vision and on-site reality at Mayfair Building Co. With a background in design, marketing, and client relations, she manages the flow of communication between clients, architects, and construction teams, ensuring projects stay on brief, on budget, and beautifully executed.

    Her eye for design and detail was honed through years working with high-end materials, interiors, and architectural finishes. Today, that same precision shapes her work in project management and client coordination, where she combines creative intuition with clear structure and accountability.

    Lauren’s role spans selections, scheduling, and stakeholder communication, but her real strength lies in relationships. She’s known for her approachable professionalism and her ability to make clients feel both informed and understood throughout the building process.

    Before joining Mayfair, Lauren worked across marketing and design roles. Her diverse experience gives her a rare perspective, one that balances aesthetics, functionality, and communication in equal measure.

    Intuitive and detail-driven, Lauren brings warmth and polish to every project she touches. She represents the modern face of Mayfair: design-focused, collaborative, and client-centred.

SITE SUPERVISORS + PROJECT MANAGERS

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JOEL BOURKE

  • Joel brings a rare combination of experience, creativity, and technical know-how to his role as Site Supervisor at Mayfair Building Co. A carpenter by trade, he’s spent more than a decade leading high-end residential and commercial projects, earning a reputation as the person you call when a build gets tricky. 

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DANIEL FATHERS

  • Daniel brings strong technical knowledge and hands-on experience to his role as Site Supervisor at Mayfair Building Co. A qualified carpenter and joiner with more than a decade in the industry, he has worked across residential and commercial construction, developing a reputation for precision, problem-solving, and reliability.

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GREG DOWSE

  • Greg brings more than 20 years of experience across construction, finance and business operations to his role at Mayfair Building Co. He manages projects from start to finish, overseeing site operations, coordinating teams and ensuring every build is delivered safely, efficiently and to the highest standard.

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TOM DERICKX

  • A qualified carpenter and joiner with more than 10 years of experience in civil, commercial, and residential construction, Tom brings a hands-on, relationship-driven approach to site management. He’s passionate about delivering high-quality outcomes through collaboration, clear communication, and a deep respect for craftsmanship. Tom’s professionalism and energy make him a trusted leader on site and a valued member of the Mayfair team.

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ASHLEY MOULD

  • A qualified carpenter and licensed builder with over a decade of experience, Ashley has worked across civil, marine, and residential construction in Melbourne, Sydney, and the Hunter region. Known for his meticulous attention to detail and calm, personable approach, he ensures every project runs smoothly from planning to handover. Ashley brings both technical depth and leadership to the Mayfair team, balancing precision with practicality on every site.