About Us

Our Company

Your Trusted Advisor

Team William Tatana was founded by the dynamic duo of William Tatana and Troy. Our journey started with a simple but powerful belief: real estate isn't just about properties; it's about people and their dreams. At our core, we’re a client-focused team, dedicated to providing honest, straightforward, and enthusiastic service.

Our expertise goes beyond transactions; we're  your sounding board, your trusted advisors, and your partners in navigating the property market. With our unique mix of professional skill and personal touch, we make sure every interaction is more than just a deal – it's a memorable experience.

Our People

William Tatana

Meet William Tatana, your go-to expert in Auckland real estate. Leading Team William Tatana at Harcourts Cooper & Co, he's known for being both straightforward and innovative. With a background spanning aviation engineering and managing teams in global advertising, William brings 30 years of diverse experience to the table.

He values honesty, respect, and top-notch service. With William, you get a true professional who's down-to-earth and focused on making your property journey smooth and enjoyable. He’s not just about closing deals; he’s about providing peace of mind and achieving standout results.

Troy Restieaux

Meet Troy, a key member in Team William Tatana. Known for his commitment to achieving the best outcomes for his clients, Troy is a meticulous negotiator who consistently exceeds expectations, often going beyond the usual duties to deliver exceptional results.

With a substantial background in international sales management and overseeing large supermarkets, Troy brings a wealth of business savvy to the real estate world. His experience equips him with an efficient, comprehensive approach, ensuring he offers expert advice to his clients.

Troy stands out for his meticulous attention to detail and his passion for guiding homeowners seamlessly through their real estate journey. His clients often praise his commitment to excellence and his focus on achieving their property goals.

Always adaptable and quick to respond, Troy excels in creating stress-free experiences for his clients. His knowledge of the market, coupled with his strategic marketing skills and excellent communication, ensures clients feel confident and supported from the start. With Troy, you're not just getting an agent; you're gaining a dedicated partner in your real estate journey.

David Kim

Listening to learn and seeking to understand, David knows that real results happen when real work is done.

David's aptitude for real estate was forged by a career in project management, leading commercial/retail shop fit-outs that involve heavily detailed processes, quality control, strategic planning, and communication. His experience means that his clients’ get an unbeatable selling experience and a network of resources to meet them at any stage of their journey, along with honest and balanced advice.

David's inner-drive is a competitive advantage that sets him apart. He is always in forward-motion, with no 'off-switch'. His relentless dedication to his clients' needs, no matter how large or unique, is the goal post he consistently aims for, ensuring they receive the best tailored marketing and service for their home and family.

A long-time local of the North Shore – fluent in Korean and English – David has aligned himself with the best the industry has, standing shoulder-to-shoulder with the trusted award-winning Team William Tatana of Harcourts Cooper & Co.

By first knowing your why in the property journey, David then shows you the how to. To be heard, understood, and accelerate your plans, contact David for a friendly chat.


Impact we have had on our customers

Real Estate Journeys (with the William Tatana Team)

Hear our customers’ stories and experiences as they share their real estate journey with us, reflecting our commitment to exceptional service throughout the whole process.


See Testimonials

Community Work

Making a Difference Year After Year

Every year, we happily give back to our community, creating positive change that makes a difference in people’s lives. Learn more about our ongoing commitment to community works.


Read More



Prior Agent Didn't Like Hard Work

I am a very happy client of William Tatana who successfully marketed and sold my property at 121 Kawakawa Bay Coast Road.  William was always amenable to my requirements and went above and beyond in his endeavours to get a sale.  He also worked very …

- Stephen Waters

Made Me a First-Time Homeowner

My experience with William Tatana and the Ray White Damerell Group was firstly, one I will never forget and secondly, one that made being a first time home buyer a dream.

William was always super responsive, keeping me in the loop about times for vie…

- Kiri Johnston

Contact Us

Have questions or need some assistance? Our team of real estate experts is here to help. 

Contact Us