Agency HQ Sydney

100 Harris Street Pyrmont, NSW, Australia 2009
  •   5   (22 reviews)

Meet the team

Get to know the 5 agents at Agency HQ Sydney.

Courtney Antico
Courtney Antico

Licensed Real Estate Agent / Sales Agent / Partner

  5   (26 reviews)
About Courtney
Agency HQ ANTICO brings together some of the best and brightest minds working in the real estate industry today. Every member of the Agency HQ team is committed to providing superb service and sharing their superior market knowledge – so you will always benefit from the Agency HQ difference. Our goal is to always exceed your expectations.
View Profile
Stephen Antico
Stephen Antico

Sales Agent / Partner

  5   (11 reviews)
About Stephen
A formidable duo committed to excellence within the real estate industry, Courtney and Stephen Antico attribute their successful career to the unwavering dedication and enthusiasm they share for property, people and results. “Our main goals are to over-service our clients and ensure we achieve the maximum sales price by applying the correct strategy – every property is different and therefore requires a different approach”. With over twenty years combined experience dedicated to eastern suburbs real estate, they appreciate the significant role they play in each sale process whether it be a studio apartment or one of Sydney’s most prestigious homes. Stephen’s skill for negotiation and superior market intelligence coupled with Courtney’s transparent approach and always trusted advice make the pair a complementary force and highly effective team. “Being one of the few husband and wife teams in the Eastern Suburbs really sets us apart from the competition and enables us to bring a fresh approach to our clients, we aim to change the way people think about real estate agents”.
View Profile
Todd O'Brien
Todd O'Brien

Director

  5   (9 reviews)
About Todd
Todd O’Brien – Principal, O’BRIEN Real Estate Agency With more than 20 years in Sydney real estate, Todd O’Brien is recognised for his commitment to achieving premium results and delivering a personalised experience for every client. As Principal of O’BRIEN Real Estate Agency, Todd has built a reputation for integrity, market expertise, and results-driven strategies. Recent highlights include the auction of 10 Valentine Street, South Blacktown – sold for $1,400,000, setting a new street record and achieving $150,000 above reserve. Todd has also guided clients through successful campaigns in Mosman, Hurstville, Warriewood and Central Coast, consistently exceeding expectations in both local and prestige markets. Todd’s areas of expertise include: • Auction campaigns – maximising competition to achieve above-market outcomes. • Deceased estate sales – handled with care, compassion and professionalism. •Residential sales across Blacktown and Greater Sydney – delivering standout results for family homes and investment properties. Respected for his negotiation skills and trusted advice, Todd is dedicated to helping his clients make confident property decisions and move forward successfully.
View Profile
Lynne Alexander
Lynne Alexander

Licensed Real Estate Agent

  5   (1 review)
About Lynne
Leveraging years of experience Lynne ensures she delivers an impeccable service to each listing. Lynne is driven to deliver success for her clients, by providing top notch customer service, trusted guidance, and great empathy. Lynne has a great ability to interact with people on a personal level, with a focus on developing strong relationships with her clients. Building long term partnerships is her aim, whether you are purchasing your first home, upsizing or downsizing, Lynne is there to help you. Lynne is a keen learner and empathetic, she is constantly researching the market and is highly personable and really understands her client’s needs. Prior to becoming an agent Lynne had a very successful career in Photography. She also had a very prosperous vineyard in the Hunter Valley for over 10 years which was her piece of paradise.
View Profile
Mark Morrison
Mark Morrison

Auctioneer / Licensed Real Estate Agent

About Mark
Agency HQ is led by one of the real estate industry's most respected and dynamic leaders – Mark Morrison. A licensed real estate agent and auctioneer, his experience extends across the spectrum of real estate services. During his real estate career, Mark has been instrumental in spearheading the growth of some of the real estate industry's most recognised brands. Now, he brings his vision, creativity and innovative outlook to AgencyHQ. In 2019, recognising the challenges facing sellers, buyers, agents and the market, Mark created the AgencyHQ network model. At the core of this model is achieving the best outcomes for everyone involved in every real estate transaction – sellers, buyers and agents. Under Mark's leadership, every member of the AgencyHQ team is focused on ensuring you achieve your tomorrow.
View Profile

About us

Agency HQ brings together some of the best and brightest minds working in the real estate industry today. Every member of the Agency HQ team is committed to providing superb service and sharing their superior market knowledge – so you will always benefit from the Agency HQ difference. Our goal is to always meet your expectations. With Agency HQ, you can make your tomorrow a reality today.

Our reviews

  5  
22 reviewsacross 14 different locations, showing 6.
14 days ago
Helpful and Reliable Real Estate Agent

Recently purchased a property through this agent and had a great experience. They were professional, helpful, and responsive throughout the entire process. They provided clear information, arranged inspections smoothly, and guided me well during negotiations. Communication was excellent, and they made the buying process stress-free. I’m very happy with my purchase and would recommend them to anyone looking to buy a property.

Todd O'Brien

Todd O'Brien

  5   (9 reviews)
about 2 months ago
Highly recommended

Todd has been a great agent when I bought my property. He’s not particularly pushy like the other agents and a lot of buyers and sellers would appreciate his calm and positive attitude towards the deal. He maintains clear communication throughout the process to help you get the best outcome. Highly recommended!

Todd O'Brien

Todd O'Brien

  5   (9 reviews)
3 months ago
Testimonial for 15/1 Parriwi Road, Mosman

Todd O’Brien made the entire process easy and stress-free. His expert advice and clear communication gave me confidence every step of the way. Not only did he achieve a fantastic result, but he also made me feel like my goals truly mattered. I wouldn’t hesitate to recommend him to anyone looking to buy or sell. - Aldo Cirkovic -

Todd O'Brien

Todd O'Brien

  5   (9 reviews)
3 months ago
Excellent

Todd was professional, honest and easy to deal with throughout the entire process. He kept everything clear and straightforward, and the off-market purchase was handled smoothly from start to finish. We’re very happy with the outcome and wouldn’t hesitate to recommend him.

Todd O'Brien

Todd O'Brien

  5   (9 reviews)
3 months ago
Great Effort and Great Result

Thanks to Todd he sold our property at Auction. Todd worked extremely hard to sell our property. He was great at keeping us updated on the progress and interest that buyers had in the property. Todd was very professional and personable at the same time, we were very comfortable in dealing with Todd. Todd was recommended to us by a friend and we have no hesitation in recommending him to other potential clients (Sellers). Thanks again Todd for all the hard work and effort you put into selling our property. Kind regards, Al and Lyn

Todd O'Brien

Todd O'Brien

  5   (9 reviews)
8 months ago
Exceptional

Todd is a great communicator, he kept me up to date throughout the entire process, it was evident he had my best interests at heart. He has an amazing knowledge of the industry and provided me with up to date facts and figures. This enabled me to follow the process and make the correct decisions. I can’t thank him enough, he made selling my house an interesting and rewarding experience.

Todd O'Brien

Todd O'Brien

  5   (9 reviews)
Show all 22 reviews

Our properties

Agency HQ Sydney has 14 properties for sale and sold 34 properties in the last 12 months, showing 4, sorted by most recent activity

For Sale
Price not available
10/33-35 Dickinson St
Charlestown NSW 2290
2
2
1
Apartment
SoldMay 4, 2026
Price not available
155/387 Macquarie Street
Liverpool NSW 2170
2
2
2
Unit
SoldApr 28, 2026
Price not available
4 Gollan Street
Wingham NSW 2429
4
2
1
House
SoldApr 16, 2026
Price not available
32 Kurrajong Crescent
Blacktown NSW 2148
3
1
2
House
Show all 48 properties
Email
© 2026 RateMyAgent