De Brennan Property’s negotiators are highly skilled, delivering a positive experience and the best outcomes for our clients.

We are skilled in ‘quiet’, ‘off-market’ sales. De Brennan Property’s ‘off-market’ sales are designed to sell properties discreetly, with minimum disruption for our clients. Excellent results can be achieved with this method of sale, as we implement proven sales strategies.

Our uncompromising care and attention to detail for every property we undertake to represent, is reflected in our sales and leasing results.


Dear Jonathon and the Team,

We would like to thank all of the team at De Brennan Property for the excellent effort and results

they achieved on the recent sale of our two properties in Mosman.

We first met Jonathon a few years earlier and we were impressed by his professionalism and

dedication to achieving results for his clients.

We decided to engage Jonathon and the team for our recent sales, and he and the team

exceeded our expectations on every aspect of selling.

Jonathon dealt directly with the buyers and we were well informed about progress of the sales

regardless of the time which was very much appreciated.

We strongly recommend engaging the services of De Brennan Property.

Quinn and Kerry Karaitiana (Vendors of 27 Macpherson Street and 29 Macpherson Street, Mosman)


We recently sold our apartment in Mosman through De Brennan Property and during this sales period were

very impressed with their professionalism and general follow-up.

The entire team always kept us up to date with the status of the sales process

and always called us back when we had any queries.

We have bought and sold a number of properties over the years but can honestly say that this

experience with Jonathon and his team has been outstanding.

Jeff and Anne Pope (Vendors of B4/112-124 Cowles Road, Mosman)


A thank you note for selling my property at Mosman.

My apartment is a valuable investment and having an agent who is dedicated, professional and enthusiastic is beneficial.

They did what they said they would do promptly and I felt I was in good hands.

J.B.S. Davenport (Vendor of 4/34 Parriwi Road, Mosman)


Jonathon’s drive and focus was a standout.

He was able to secure the sale of our property in 48 hours at a fantastic price.

He went above and beyond when compared to other agents we have engaged in the past – we

would recommend his expertise and hope to work with him again soon.

Vendors of 6/7 The Esplanade, Mosman


Dear Jonathon,

The off market sale process was seamless.

You delivered as promised within 3 weeks my property was sold for the price I requested.

You & your teams professionalism shone through, with a minimum of fuss.

I will certainly recommend you.

Thank you.

Kind regards,

Diana Singer (Vendor of 3/1-5 Mandolong Road, Mosman)


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