About Us

We take the stress and confusion out of sourcing, negotiating, and managing commercial property leased by businesses, allowing you to remain focused on what you do best.

Thrive Commercial offers tailored Commercial Tenant Advocacy services for Small to Medium Enterprises (SMEs) in Australia.

Our services encompass commercial lease negotiations, sourcing new sites, lease renewals, early exits, make-good negotiations, and lease dispute resolution. While we are skilled in retail and office leasing, our primary focus is the industrial sector, particularly large warehousing requirements. Our personalised approach sets us apart, tailoring leasing arrangements to each client’s needs and financial constraints, ensuring favourable terms.

At Thrive Commercial, we prioritise understanding our clients’ business strategies to navigate lease negotiations and resolve disputes amicably, fostering healthy landlord-tenant relationships. Our Property Management service is designed to ensure strict lease adherence while pinpointing opportunities for cost savings within lease portfolios, ultimately paving the way for long-term success.

Thrive Commercial is dedicated to delivering unparalleled customer service and committed to being a trusted partner in the leasing industry.

You can't choose your landlord, but you can choose Thrive Commercial.

Your Thrive Team

Kathleen Kielenstyn

Chief Negotiator

Meet Kathleen Kielenstyn, the visionary founder of Thrive Commercial. Kathleen’s journey in establishing Thrive stems from her keen observation of the unmet need for commercial lease support among small to medium businesses. With a resolute commitment to bridging this gap, Kathleen brings over 15 years of extensive experience in corporate real estate to the forefront.

Having held senior lease management and negotiation positions at esteemed organisations such as Cushman & Wakefield, JLL, and UGL, Kathleen has navigated the complexities of property management for ASX top 20 clients across Australia and New Zealand. Her tenure has equipped her with a profound understanding of the property lifecycle and finely honed negotiation skills.

As the cool, calm, and collected Chief Negotiator at Thrive Commercial, Kathleen is renowned for her unwavering composure even in the face of the most challenging deals. Her expertise spans industrial, retail, and office leasing, and she has collaborated seamlessly with project management teams on fitouts, refurbishments, and property maintenance

Kathleen leads with a commitment to delivering exceptional outcomes for her clients. Her outstanding efforts have provided effective property strategies needed to grow portfolios and optimise existing ones. From facilitating relocations and consolidations to managing early exits, Kathleen’s approach has resulted in more efficient property portfolios and paving the way for businesses with future expansion plans.

Driven by a passion for empowering emerging and growing businesses, Kathleen is dedicated to leveraging her knowledge and skills to propel them to new heights. At Thrive Commercial, she strives to instil certainty and security in businesses’ leased premises, ensuring they thrive in their environments.

With a focus on client satisfaction, Kathleen consistently demonstrates a level of professionalism, integrity, and dedication to exceeding expectations. Her unwavering commitment to excellence has played an instrumental role in her clients’ success.

Fiona Napier

Lease Detective

Meet Fiona Napier, our cofounder and Lease Detective at Thrive Commercial, armed with over 25 years of relentless dedication to the commercial real estate landscape. Fiona’s journey is a testament to her unwavering commitment to excellence and her significant contributions to the industry.

With a career spanning prestigious organisations such as Colliers, JLL, Cushman & Wakefield, Dexus, and The Gandel Group, Fiona has navigated the complexities of leasing, centre management, and asset management with finesse. Her expertise shines through in her management of iconic shopping centres like Chadstone, Myer Centre, and Wintergarden.

As the name suggests, Fiona’s detective skills encapsulate detailed research and a knack for finding solutions at Thrive Commercial. Her passion lies in advocating for small to medium businesses, ensuring they have a voice in every negotiation and dispute. Fiona’s meticulous attention to detail and love for numbers enable her to craft tailored solutions that exceed expectations. earning her a reputation as a trusted advisor in the commercial real estate industry.

Fiona takes the lead in fostering connections and cultivating business opportunities at Thrive Commercial. As your first contact for expert advice and to assess Thrive Commercial’s suitability for your needs, she is often praised for her unwavering dedication to ensuring optimal results for her clients.. 

With Fiona Napier and the team at Thrive Commercial by your side, you can be confident in establishing certainty and security in your leased premises. Reach out today to experience firsthand the expertise and dedication that have earned Fiona the trust and admiration of her clients across the industry.

What Our Clients Say

Thrive Commercial has been an integral part of the CARe Automotive team in securing property infrastructure across the eastern seaboard.

Thrive Commercial effectively handles our site search, lease negotiations, legal documentation and ongoing communication with landlords. They have created a platform to handle all ongoing lease administration for our rapidly expanding network.

Thrive Commercial bring a best in class approach to all aspects of our property management.

Norman Moss

Managing Director CARe Automotive Group

Engaging Thrive Commercial has not only addressed our immediate needs but has opened our eyes to further growth opportunities.

Their commitment to excellence and proactive approach make them an invaluable partner in our journey towards continued success.

We are grateful to Thrive Commercial for their outstanding commercial tenant advocacy services and highly recommend their services to any business seeking comprehensive and effective commercial tenant advocacy support.

Barry Saad

CEO – Truck Tech Group

Thrive Commercial has played an important role in optimising our portfolio since March 2023.

Thrive have stepped in to facilitate relocations, consolidations and early exits, resulting in a more efficient portfolio and releasing funds for future expansion to support more members.

Thrive Commercial consistently demonstrate a level of professionalism, integrity, and dedication to client satisfaction that exceeds our expectations.

We look forward to a long and prosperous partnership with Thrive Commercial.

David Chahrozian

CFO – Plumbers Supplies Co-operative Limited
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Your Commercial Property Team

Need help with your Commercial Property but not sure where to start?

At Thrive Commercial, we understand the many facets of managing your ongoing lease requirements can be overwhelming, which is why we offer a fully managed solution to navigate the complexities of commercial property sourcing, lease management, property management, and facilities management.