Quality
Standards held consistently from first drawing to final handover.
About usWho we are
DIA plans and coordinates construction projects from early planning through site delivery and handover.
One team, one outcome.
Clients, consultants, trades and our own people succeed or fail together. Our design, site and commercial teams meet as one and close out issues jointly.
DIA Construction is an Australian head contractor providing preconstruction, construction and construction management services across education, commercial, residential, aged care and community projects. We work construct-only, design and construct, and fit-out and refurbishment.
We take a practical, collaborative approach to every project, focusing on buildability, cost control, program management and clear coordination between clients, consultants and trades. Our goal is a safe, defect-free building the people inside it can rely on, and a client who would sign with us again.
Our strength is our people: experienced construction professionals across design, site and commercial disciplines who meet together and close out coordination issues jointly.
DIA at a glance
Sydney, New South WalesCore services(03)
- Pre-construction planning
- Construction delivery
- Construction management
Sectors(05)
- Commercial
- Industrial
- Residential
- Infrastructure
- Community
Delivery models(03)
- Construct-only
- Design & Construct
- Construction Management
Project types(03)
- New construction
- Fit-outs
- Refurbishments & renovations
About usWhy DIA
Built on More Than Construction.
Reliability
Clear commitments, kept — on programme and on budget.
Experienced team
Specialists across construction, fitout and project delivery.
On-time delivery
Programme managed actively, not reported retrospectively.
Attention to detail
Precision in the finish, not only in the structure.
Client-focused approach
A single point of accountability throughout the project.
Our promise
We aim to be the builder trusted on every side of the table — where clients get certainty, trades get a fair go, our people get a future, and every project ends with no one wishing they had signed with someone else.
Why clients choose us
The builder trusted on every side of the table
Built right, handed over defect-free.
Every stage is inspected against the specification before the next trade starts. We hand over nothing we would not put our own name to.
Problems arrive with solutions.
When an issue comes up, we raise it early — with at least one worked option for you to consider. No surprises, no blame games.
We own the outcome.
Every commitment has a named owner and a date, and is tracked until it is closed. If something goes wrong, we own it and fix it.
About usMission & Vision
Our mission
We listen before we plan, plan before we build, and build nothing we can't stand behind — handing over safe, defect-free buildings the people inside them can rely on, and finding a better way on every project we deliver.
Our vision
To be the builder trusted on every side of the table — where clients get certainty, trades get a fair go, our people get a future, and every project ends with no one wishing they'd signed with someone else.
About usValues
Seven values, each with a commitment you can check
Safety comes first
Everyone goes home safe. The health and safety of our people, trades, clients and the public comes before program or cost, and safety is everyone's job, every day.
Our commitmentAnyone on site can stop work that is unsafe, without penalty.
Build it right
We take pride in the quality of our work. We agree the standard before work starts, check it at every stage, and do not hand over anything we would not put our name to.
Our commitmentEvery stage is inspected against the specification before the next trade starts.
Find a better way
We stay curious and look for smarter ways to design, sequence and build. When a problem comes up, we bring a solution with it.
Our commitmentEvery issue is raised with at least one worked option for the client to consider.
Do the right thing
We act ethically with clients, trades and the community, even when no one is watching and even when it costs us.
Our commitmentConflicts of interest are declared, and decisions are made in the open.
Respect every person
Everyone on our projects is treated with respect, whatever their role. We build a workplace where people are welcome, supported and able to do their best work.
Our commitmentSite inductions set clear standards of behaviour, and they apply to everyone.
Work as one team
Clients, consultants, trades and our own people succeed or fail together. We share information early and back each other to reach the same goal.
Our commitmentDesign, site and commercial teams meet together and close out coordination issues jointly.
Own the outcome
We take responsibility for our commitments and our results. If something goes wrong, we own it and fix it rather than look for someone to blame.
Our commitmentEvery commitment has a named owner and a date, and is tracked until it is closed.
A fair go for every trade.
We deal ethically and transparently with our supply chain — which is why the best subcontractors choose to work with us, and why it shows in the finished building.
About usOur Team
The People Behind the Work.
Our strength is our team — experienced construction professionals across design, site and commercial disciplines who meet together and close out coordination issues jointly. We treat every person on our projects with respect, whatever their role, and we build a workplace where people are welcome, supported and able to do their best work. That is why good people stay with us, and why the best trades choose to work with us, project after project.
Over$500 million
Projects delivered and managed
Diaa AlameddineMore than17 years
In the Australian building industry
Diaa AlameddineAwardsTwo
Master Builders Association Excellence Awards and an Urban Taskforce Award
Diaa AlameddineMore than15 years
Of architectural and design management experience
Hodoun Kanawati
Leadership & architecture
Estimating & contract administration
Diaa AlameddineDirector
Diaa Alameddine is the founder and Managing Director of DIA Construction, and one of Sydney’s most hands-on construction leaders. A qualified civil engineer with more than 17 years in the Australian building industry, Diaa has delivered and managed projects worth over $500 million across multi-residential, aged care, independent living, social housing, education and community sectors. He worked his way up from site supervision to Construction Manager, so he understands a project from the ground up.
That delivery experience is backed by a Master of Engineering Project Management from UNSW and an MBA. His projects have earned two Master Builders Association Excellence Awards and an Urban Taskforce Award. At DIA, Diaa remains directly accountable to every client, personally reviewing programs and budget on every live project, so the person you shake hands with at the start is the person who sees your project through to handover.
Hodoun KanawatiDesign Manager
Hodoun Kanawati is the Design Manager of DIA Construction, bringing more than 15 years of architectural and design management experience across residential, mixed-use, healthcare and hospitality projects in Australia and the Middle East. Architecturally trained, Hodoun has worked across the full design lifecycle, from early concept and design development through to construction documentation and delivery.
At DIA, Hodoun leads the consultant team and design program on every project, and reviews documentation for compliance with the NCC, the Apartment Design Guide, Australian Standards and the NSW Design and Building Practitioners Act. Hodoun also manages DA, CC and Occupation Certificate requirements with certifiers and authorities. The focus throughout is on design that is compliant, buildable and cost-efficient, giving clients confidence in their approvals and fewer surprises on site.
Sara AghaContract Administrator
Sara is a Civil Engineer and Contract Administrator who has built her career on Australian construction projects (Rouse hill and Northcote), progressing from estimation into contract leadership. She covers the commercial side of a project from tender to handover: cost estimates, BOQs, scopes of work, subcontractor and consultant agreements, progress claims, variations, and cash flow forecasting. Backed by two Master’s degrees in engineering.
Ghina MalasEstimator
Ghina is a Civil Engineer and Project Estimator who leads the quantity surveying team on Australian residential and commercial building projects. She covers the commercial side from preconstruction through delivery: quantity take-offs, BOQs, cost estimates, project budgeting and cost tracking, along with trade scopes of work, activity task lists, and contract administration support. With a background in structural design and drafting across Lebanon, Saudi Arabia, and France.
Mahmoud AwadArchitect & Project Engineer
Mahmoud is an Architect and Project Engineer with over three years of experience in Australian residential and commercial projects. Combining architectural expertise with technical and commercial insight, he specializes in quantity take-offs, cost estimation, and tender preparation. His understanding of building design, construction methods, and Australian standards enables him to deliver accurate estimates, support informed project decisions, and contribute to efficient project planning and delivery.
Kassem AichaEstimator
Kassem is a Civil engineer and Estimator with extensive expertise in quantity surveying, cost estimation, and construction project delivery. He encompasses major Australian construction projects, including detailed Bills of Quantities (BOQs) and trade scope development, alongside international experience in large-scale industrial warehouses, infrastructure networks, and structural construction. Combining technical proficiency with practical site experience, Kassem brings a strategic, detail-oriented approach to cost management, project coordination, and the successful delivery of complex construction projects.
Message from our director
Built on trust, careful planning and strong collaboration
“We understand the importance of every investment and take pride in delivering practical solutions, reliable outcomes and lasting value for our clients.”
Diaa AlameddineDirector, DIA Construction
Construction & project management · Cost planning & commercial strategy · Design & consultant coordination · Risk, quality & safety · Client & stakeholder relationships
About usSafety & Quality
Safety before program, before cost.
Everyone goes home safe, every day. Anyone on our sites can stop unsafe work, without penalty.
Quality at every stage
Each stage is inspected against the agreed specification before the next trade begins.
CapabilitiesServices
From early planning to coordinated construction delivery.
From first plans to final handover, we manage design coordination, procurement, site delivery, commissioning and completion under one accountable team.
Preconstruction & ECI
Early contractor involvement, buildability reviews, cost planning and value engineering, so design decisions are made with real costs and programs in front of you.
Construct only
We build to your documented design, with the standard, program and price agreed up front and progress measured against them at every stage.
Design & construct
One contract from concept to completion. We coordinate architects, engineers and consultants and take responsibility for the whole outcome.
Fit-out & refurbishment
Upgrades, amenities and interior works in occupied buildings such as schools and workplaces, staged to keep your people safe and operating.
Project & construction management
Tendering, cost management, consultant coordination and delivery oversight. Every commitment has a named owner and a date, tracked until it is closed.
Not sure which delivery model fits?
Tell us about the site, the budget and the timeframe. We'll recommend an approach and show you the options.
Start a conversation
Delivery models
Construct-only
Design & Construct
Construction Management
CapabilitiesSectors
DIA adapts its planning and construction delivery to the requirements of each project and built environment.
01
Commercial
Commercial buildings02
Industrial
Industrial facilities03
Residential
Residential developments04
Infrastructure
Infrastructure projects05
Community
Community projects
Project types
New construction
Fit-outs
Refurbishments & renovations
Our GalleryPictures
What We Build.
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Our ApproachHow we work
Listen before we plan.
Plan before we build.
How we work with clients
- 01
Understand the Brief
We align your objectives, project scope, program and cost expectations.
- 02
Plan & Coordinate
We agree on the delivery approach, work sequence and quality requirements before work begins.
- 03
Manage & Communicate
We coordinate project teams, monitor progress and raise challenges with practical options.
- 04
Inspect & Handover
We check completed stages against the agreed specification and keep safety and quality in focus through handover.
Our ApproachProject Delivery
Planned before work starts. Coordinated on site. Checked at every stage.
- 01
Plan & Schedule
Set project timelines, coordinate resources and anticipate potential challenges.
- 02
Align & Coordinate
Bring clients, consultants and trades together around a coordinated approach to delivery.
- 03
Construct
Manage construction activities in line with the project plan and agreed specifications.
- 04
Inspect & Respond
Inspect each stage before the next trade begins. When challenges arise, present a practical option for resolution.
- 05
Handover
Complete the work with safety, quality and long-term reliability in focus.
Structural capability
Reinforced concrete and steel construction.
ContactDiscuss a project