Diana Tsoukalas

Property Advisor


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Everyone at OBrien works as a team, with one of us you get all of us.


One of the fabulous aspects about listing our home with OBrien's was that Mary Cassar, the agent, talked us through the steps is such a clear and concise manner. From listing our house, sorting out the conveyancing, staging, storage, the auction process, and then the sale; all of the steps were explained and the communication was outstanding. Mary was on top of everything. She knows the market, knows the area, and understands the needs of the vendor. We have recommended Mary and OBrien's to friends because the entire experience was highly professional, accomodating, and comfortable.
00:09 11 May 21
Zoe has been my property manager for the last few years and has been excellent to deal with. Polite, attentive & professional, making both moving in and moving out a seamless process.Well done Zoe and team, keep up the great work.
03:03 15 Apr 21
Zoe made the whole the whole moving process so easy! She is always so prompt and friendly in all of her responses. She's by far the best property manager I've ever dealt with and could not recommend her more highly!! She really cares about making sure your always being looked after and offers amazing customer service! Thank you Zoe!!! :)
Olivia Johns
Olivia Johns
06:08 07 Apr 21
My husband and I currently have a long term lease with OBrien Real Estate Mentone. We send this email in regards to the outstanding efforts of Tiffany Gillard as the managing agent of our property.We are leasing this property but over the years have had several rental properties ourselves and we know what an exceptional property manager is.Tiffany has been a delight to deal with since our lease commenced. She is most professional, always makes herself available, is prompt and active in actioning any issues and her communication skills are excellent.Tiffany goes above and beyond and her wonderful 'get things done' attitude should be recognised.We feel she is a great asset to the team at OBrien and should be commended on the way she manages her properties, their tenants and owners. We would happily recommend Tiffany to our friends and business colleagues as the preferred managing agent for their investment properties.Adam and JaneRangiora Corriedales
Catherine Jane Turney
Catherine Jane Turney
23:31 05 Apr 21
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Diana Tsoukalas in the last year.

Committed to delivering a first-class service with each and every transaction, Diana Tsoukalas is thrilled to be part of the OBrien Real Estate family. A trained accountant with extensive experience in talent acquisition, Diana has honed her communication skills through a series of senior roles over the past 15 years and applies this seamlessly in her every day dealings with both buyers and sellers.

A self-confessed ‘people person,’ Diana was drawn to OBrien’s strong values and philosophies – ideals that mirror her own beliefs and goals. A Bayside local with a solid knowledge of the area, Diana counts empathy, honesty and passion among her strengths – attributes she effortlessly applies to her role in the sales team.

Happily married for more than 20 years, Diana loves spending her down time with her family – including her two beloved fur-babies Max & Marley – and can think of nothing better than settling in for a night of Netflix with loved ones and a good meal.

Years in the industry


Community involvement

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Our values and purpose.

Our purpose is to create a place where we can facilitate our people's growth. Our values are:

Our colleagues are our broader family, assist when needed and when in need.

Respect our colleagues and our clients as you would like to be respected.

Unlock your full potential, encourage and support your colleagues.

Strive for excellence; be open-minded and willing to embrace change.

Work towards being well balanced within yourself.

The OBrien difference.

30 offices with 1 in Cairns in Qld.

198 in sales & 55 in property management.

17,564 sales since founded in 2010.

Our Average Clearance Rate in 2020 is 82.5%.

Homes is $854,350 and Units is $601,500.

Industry leading results, with an average of 26 days.

Industry benchmark results with 1.5% vacancy.

We manage and serve over 8,250 properties.

Across our network we speak 36 different Languages.

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