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Katherina Kostrzak-Adams

Selling Principal


According to Katherina, her success is a direct result of her strong business principles. “I pride myself in conducting my business with honesty, integrity and professionalism”. “The process of selling and buying a house is a big deal and its one that I want my clients to enjoy - which is why I make it my priority to ensure a pressure and stress-free environment for my clients”.

Katherina is the market leader in Kurrajong and specialises in the Hawkesbury in both acreage and residential. Katherina combines business experience in client services with client communication. Having worked for the Ray White family for over 18 years, Katherina has gained recognition and has achieved the prestigious title of an Elite Performer for consecutive years 2014 - 2020 and 2021 - 2023 whilst working in the Ray White Kurrajong office. In 2018 Katherina was also awarded Number 6 Selling Principal for NSW Metro Offices. Katherina works as a professional whose commitment ensures she receives a high level of repeat business. She is extremely attentive to her clients’ needs and always keeps them informed throughout the sale process.

Katherina and her husband Gavin Adams purchased the Ray White Kurrajong Office in 2016 and together have a great team. They work closely with buyers and utilise our extensive database to match buyers and properties resulting in shorter days on market. Katherina strives in enthusiasm from the commencement of the marketing campaign throughout to the negotiation and the sale process. She carefully supports the needs and expectation of her clients to ensure a smooth, seamless and successful process. Katherina is supported by her close knit team of experienced professionals. 


  • 2023/2024 - Premier Performer
  • 2022/2023 - Elite Performer
  • 2021/2022 - Elite Performer
  • 2021 - 15 Year Service Award
  • 2020/2021 - Premier Performer
  • 2019/2020 - Elite Performer
  • 2018/2019 - Top 10 Metro Principals Settled Commission - No. 9
  • 2018/2019 - Elite Performer
  • 2017/2018 - Top 10 Metro Principals - Settled Commission - No. 6
  • 2017/2018 - Elite Performer
  • And 6 earlier awards
In the market

Katherina's Listings