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Sydney's Barangaroo towers at dusk — One International Towers, where HMS Group's Sydney office sits

Quantity surveying · Construction dispute resolution

One quantity surveyor,registered to arbitrate,adjudicate and give evidence.

Senior-led counsel where construction cost meets the law. One principal, registered to act in five Australian states.

  • 20+

    Years, principal experience

  • 5.0

    Across 44 client reviews

  • 80%+

    Clients by referral

  • 70%+

    Client repeat rate

Member & accredited bodies

Member and accredited bodies: Resolution Institute, RICS, DRBF, QBCC, Victorian Building Authority, Northern Territory Government, Master Builders Association NSW, Society of Construction Law and Law Institute Victoria.

Why HMS Group

Two disciplines most firms keep apart, in one registered hand.

The HMS difference

Most projects send the cost question to a quantity surveyor and the dispute to a lawyer. HMS Group answers both.

A registered Grade 3 arbitrator and accredited adjudicator, built on two decades of measured, defensible cost.

Senior-led, end to end.

Every matter is handled by the principal, never passed down a chain. It is why most clients arrive by referral.

Registered to act in

  • NSW
  • VIC
  • QLD
  • NT
  • WA

Five jurisdictions, one principal.

5.0

Across 44 client reviews.

Verbatim, unedited.

Hamish Mehdinezhad, Founder and Managing Director of HMS Group
Hamish MehdinezhadFounder & MD

Built around one senior hand.

Over two decades across quantity surveying and construction-law dispute resolution. A Bachelor of Civil Engineering and Science, and a Professional Certificate in Arbitration from the University of Adelaide.

  • Grade 3 ArbitratorResolution Institute
  • Accredited AdjudicatorSecurity of payment
  • Registered QSVictorian Building Authority
  • Expert WitnessQuantum & cost evidence
A construction crew placing concrete on a building site

Building trust, delivering expertise.

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Six disciplines, one senior hand.

Every engagement is handled by the principal directly, from the first cost question to the final determination.

01

Arbitration

Binding determination of construction disputes, conducted by a registered Grade 3 arbitrator. A faster, private alternative to court that ends in an enforceable award.

Binding and enforceable

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02

Adjudication

Security-of-payment adjudication that keeps cash flowing while a project continues, with registrations across Queensland, Western Australia and the Northern Territory.

Rapid payment relief

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03

Expert determination

An accredited, confidential route for parties who want a definitive answer on a technical or cost question, without the formality and cost of a full arbitration.

Private and decisive

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04

Expert witness

Independent quantum and cost evidence prepared for litigation, arbitration and mediation, with the standing to be accepted by courts, tribunals and counsel.

Defensible evidence

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05

Quantity surveying

Cost management, cost planning and reporting across the full project lifecycle. The discipline the firm is built on, and the foundation under every determination.

Cost certainty

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06

EDC report (NSW)

Estimated Development Cost reporting prepared to NSW planning requirements, set out clearly for councils and certifiers.

NSW planning ready

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Illustrative image evoking EDC report (NSW)

What clients say.

5.0

44 reviews on Google

As a registered Quantity Surveyor and Adjudicator, Hamish is very professional and full of knowledge.
Wiriady · Client, 2022
  • Easy to work with, professional and responsive. I would recommend them to anyone.

    Neil · 2023

  • A knowledgeable, hard-working quantity surveyor whose service is second to none.

    Mark · 2022

  • Always excellent, diligent service. A polite and very professional QS.

    Santiago · 2021

Verbatim Google reviews, rated 5.0 across 44 reviews.

Frequently asked.

Straight answers on how the work runs. For anything specific to your matter, the principal is one call away.

  • Arbitration is a private, binding process. As a registered Grade 3 arbitrator, the principal hears the dispute and issues an enforceable award, usually faster and more confidentially than litigation.

Enquiries

Discuss a matter.

Tell us briefly about the project, contract or dispute. The principal reviews every enquiry personally.

Call

02 8046 3972

Sydney. Melbourne 03 9221 6277.

Enquiries are treated as confidential.