We believe the built environment affects the quality of life that we all lead. Hence, we strive to leave a positive mark on every project we are involved in by keeping the best interest of the end user and occupier of the buildings and spaces at the forefront of why we do what we do every day. Quite simply, if it doesn’t enhance or relieve then it should not exist.

Who We Are

We are an award winning, family owned and operated, multidisciplinary firm based in Sydney, driven by three decades of experience and passion in quantity surveying and building consultancy. We ensure that every project reaches fruition and exceeds expectations throughout the project life cycle, with services ranging from pre-construction, through to post-occupancy.

Family values exist as the fabric of our business, therefore we care for our clients and their projects as if they are our own by embracing a holistic approach to every project with care, integrity and passion.

Awards & Publications




      Best Quantity Surveying Firm (<30m revenue) 2020                                            Built Environment Firm (<30m revenue) 2020



    Waverly Council Brightest and Best Business Award 

                  Winner Professional Services 2022




                   architecture bulletin                                                                         

                    December 2020 / Pages 20-21                                                                            March-May 2022 / Pages 67-69


                   June-August 2022 / Pages 06-07                                                                    August-September 2023 / Pages 52-55



Bank Panels & Affiliations

Archi-QS is a trusted and respected consultancy amongst financial institutions, is affiliated with professional industry bodies and is on the panel of various boards enabling provision of specialist services.


Professional Affiliations

Bank Panel Memberships

National Australia Bank
Commonwealth Bank of Australia
St George Bank
Westpac Banking Corporation
Balmain Private
Bank of Sydney
Bank of Queensland
Banner Asset Management
Baptist Financial Services Australia
Blue Crane Capital
Assetline Development Finance
Australian Unity Limited
Australian Securities
Arab Bank Australia
Bendigo Bank
Delphi Bank
Manda Capital Holdings
Moelis Australia
Pallas Capital
PAG Private Equity
Remara Private Credit Fund
Stamford Capital
Trilogy Funds
Wingate Group


Other Panel Memberships

AIQS Strata Defect Rectification Costs Panel
AIQS Building Inspection Panel
AIQS Expert Witness Panel
ASBC Strata Inspector Panel



Samuel Star FAIQS, CQS

Certified Quantity Surveyor (CQS) No. 2752
Fellow of the Australian Institute of Quantity Surveyors (FAIQS)
Registered ATO QS Tax Agent No. 24722473
Registered Strata Defects Inspector Panel Member AIQS
Registered Defect Rectification Costs Panel Member AIQS
Registered Expert Witness Panel Member AIQS
Graduate Diploma of Architecture (UNSW)
Bachelor of Building in Construction Economics (UTS)

Samuel established Archi-QS in 1994 and as the sole owner and director, has been fundamental to the success and good will of his company. He has had over 30 years’ experience in the industry and is reputable for his knowledge, honesty and ability to deliver projects under pressure. He is passionate about nurturing his employees and clients equally, recognising that education and knowledge is power. He strives for excellence in everything he does and has an innate understanding of what it takes to navigate the complexities of the industry. With Samuel involved in every project, his clients can rest assured they are in capable hands.

Senior Manager

Sarah Bozionelos RAIA

Nominated Architect NSW ARB 10024
Design Practitioner NSW DEP0002091
Certified Asbestos Assessor Alertforce 210301
SIP Building Inspector and General Building Consultant ASBC
Member of the Australian Institute of Architects (RAIA)
Associate Member of the Australian Society of Building Consultants
Master of Architecture (USYD)
Bachelor of Architectural Studies (UNSW)
Certificate IV in Occupational Health and Safety (WHS)

Sarah has risen to stature in Archi-QS since joining the business from a young age. She has restructured the firm and has played a major role in its success along the way. She is the nominated architect and has experience in residential design, along with experience in quantity surveying and project management. This enables her to strategically approach and manage every project with a broader focus. Furthermore, she has worked her way up the corporate ladder to oversee the entire company’s day-to-day workings and is consistently looking for opportunities to see it grow, improve and develop into a reputable enterprise. She executes without hesitation and is not afraid of a challenge.

business development manager in blue shirt

Rafael Bozionelos

brunette marketing coordinator

Eduardo Nara

quantity surveyor in white shirt

Sashko Nikolov

brunette office administrator

Bianca Cabral

assistant quantity surveyor cartier

Cartier Chen

brunette marketing coordinator

Luiza Leite

cost manager in blue dress

Mary Najm

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