Construction Project Delivery Methods in Canada: Comparing the Models Shaping Modern Infrastructure

Traditionally, Canadian projects relied on Design-Bid-Build, where the design is completed before contractors compete on price. There was then a period of Design Build for major infrastructure but this project delivery often coupled with a “lump sum” (fixed price) contract type and transfer of risk (permitting, geotechnical, etc) making it unfeasible for contractors. Today, however, owners have a much broader range of procurement models available. Around the world, there has been a shift toward collaborative approaches that involve contractors earlier in the design process, helping manage risk before construction begins.

No single delivery model is right for every project. The best choice depends on the project’s complexity, level of uncertainty, financing requirements and the owner’s appetite for risk. Here’s how the eight most common project delivery methods compare.

Canada has been slow to adopt global innovation in procurement models and is still paying the price for these delays with many DB lump sum projects yet to be complete and set to face significant claims from contractors. DB lump sum contracts allowed global contractors to prey on the lack of commercial sophistication from owner / clients who felt like they were getting a great deal but lacked commercial acumen resulting in projects commencing with claims in mind.

Across Canada, BC has moved away for P3 delivery under a current NDP provincial government favouring an Alliance or PDB approach but most other provinces still consider all available options

Table of Contents

1. Design-Bid-Build (DBB)
2. Construction Management as Advisor (CMa)
3. Construction Management at Risk (CMAR)
4. Design-Build (DB)
5. Progressive Design-Build (PDB)
6. Alliance Contracting
7. Integrated Project Delivery (IPD)
8. Public-Private Partnerships (P3)
9. Construction Project Delivery Methods in Canada Comparison Table
10. Global Trends
11. Final Thoughts

1. Design-Bid-Build (DBB)

The traditional approach, Design-Bid-Build separates design and construction into two distinct contracts. The owner first appoints a design consultant, completes the design, and then invites contractors to bid.

Best for: Schools, municipal buildings, standard commercial projects and conventional infrastructure.

Pros

• Client: High design control, transparent competitive bidding, familiar procurement. 
• Contractor: Clearly defined scope with limited design responsibility.
• Public: Open competition and strong procurement transparency.

Cons

• Client: Longer schedules, greater potential for change orders, limited contractor input during design.
• Contractor: Low-margin bidding environment and exposure to design deficiencies.
• Public: Higher likelihood of disputes and post-award cost increases.

2. Construction Management as Advisor (CMa)

Under CMa, the Construction Manager acts as an advisor throughout design and construction, providing estimating, scheduling and constructability advice. The owner retains direct contracts with each trade contractor.

Best for: Institutional projects, renovations, healthcare and projects requiring maximum owner involvement.

Pros

• Client: Early contractor expertise while maintaining control over procurement.
• Contractor: Minimal financial risk and strong advisory relationship.
• Public: Improved project planning and flexibility.

Cons

• Client: Retains most cost and schedule risk while managing multiple trade contracts.
• Contractor: Limited commercial upside.
• Public: Less price certainty compared with lump-sum procurement.

3. Construction Management at Risk (CMAR)

CMAR builds on the advisory model by adding commercial responsibility. The Construction Manager joins the project early but later commits to delivering the project under a Guaranteed Maximum Price (GMP), assuming greater responsibility for cost and schedule.

Best for: Hospitals, universities, laboratories, airports and large civic buildings.

Pros

• Client: Early collaboration combined with improved cost certainty.
• Contractor: Greater influence over design and construction planning.
• Public: Better value through early risk management and fewer change orders.

Cons

Client: GMP negotiations can be complex and require trust.

4. Design-Build (DB)

Design-Build combines design and construction under a single contract, creating one point of responsibility and allowing construction to begin before the design is fully complete.

Best for: Industrial facilities, transportation projects, hospitals and commercial developments.

Pros

• Client: Faster delivery, improved cost certainty and simplified project management.
• Contractor: Greater design influence and opportunities for innovation.
• Public: Faster delivery of essential infrastructure.

Cons

• Client: Reduced control over detailed design decisions.
• Contractor: Increased design liability and higher proposal costs.
• Public: Less procurement transparency than traditional tendering.

Sadly, this model has not expanded beyond public sector projects in Canada as real estate developers and commercial projects continue to flog the dead horse of DBB instead of allowing for iterative design and construction.

5. Progressive Design-Build (PDB)

Progressive Design-Build is one of the fastest-growing delivery models in North America. Rather than fixing the project price at the outset, the owner selects a Design-Builder based primarily on qualifications. The owner, designer and contractor then collaboratively develop the design before agreeing on a target price.

Best for: Water and wastewater facilities, transit systems, airports and complex municipal infrastructure.

Pros

• Client: Better cost transparency, improved constructability and earlier risk identification.
• Contractor: Lower bidding costs and stronger influence over project development.
• Public: Reduced likelihood of major cost overruns and better long-term value.

Cons

• Client: Final price is established later than traditional Design-Build.
• Contractor: Significant investment before construction begins. Profit share mechanism can create a moral hazard to up the target price during design development
• Public: Less emphasis on lowest-price competition.

The offramp is that Progressive Design Build is not an ideal situation as it creates considerable delays for client and has significant downsides for JV/Contractor who need to demobilise in a short period.

6. Alliance Contracting

Alliance Contracting takes collaboration a step further by creating a fully integrated team where the owner, designer and contractor share both project risks and rewards. Rather than transferring risk, all parties work under open-book accounting with a “gain-share, pain-share” commercial model and a commitment to resolving issues without litigation.

Alliance contracts have become widely used in Australia and New Zealand for highly complex infrastructure where uncertainty is too great for traditional fixed-price contracts.

Best for: Rail, tunnels, water infrastructure, remote projects and complex civil works.

Pros

• Client: Maximum collaboration, innovation and flexibility. Allows for price certainty, which is favoured by government
• Contractor: Shared decision-making with reduced claims risk.
• Public: Better management of uncertainty and fewer disputes.

Cons

• Client: Less early cost certainty and more complex governance.
• Contractor: Shared financial risk and open-book reporting.
• Public: More difficult to benchmark value for money against traditional procurement.

7. Integrated Project Delivery (IPD)

Integrated Project Delivery also emphasizes collaboration but is primarily used on complex vertical building projects. Owners, architects, engineers, contractors and key subcontractors enter a single multi-party agreement that aligns commercial incentives around shared project goals.

Best for: Healthcare facilities, laboratories, institutional buildings and high-performance developments.

Pros

• Client: Strong collaboration, innovation and reduced waste.
• Contractor: Early involvement with fewer disputes.
• Public: Better project outcomes and lifecycle performance.

Cons

• Client: Requires experienced participants and a collaborative culture.
• Contractor: Shared commercial risk.
• Public: More complex procurement than conventional methods.

8. Public-Private Partnerships (P3)

Canada is widely regarded as one of the world’s leading P3 markets. Under this model, a private consortium typically designs, builds, finances and often operates and maintains public infrastructure (i.e. DBFOM acronym or variations of this) over several decades, with significant project risks transferred to the private sector.

Best for: Hospitals, transit systems, bridges, highways and major civic infrastructure.

Pros

• Client: Significant risk transfer, private financing and lifecycle asset management.
• Contractor: Large, long-term project opportunities.
• Public: Better maintenance outcomes and performance-based delivery.

Cons

• Client: Complex procurement and reduced flexibility after contract award.
• Contractor: High bid costs and substantial financial exposure.
• Public: Ongoing debate around transparency and long-term value for money.

Construction Project Delivery Methods in Canada Comparison Table

Global Trends

Project delivery methods continue to evolve as owners recognize that not all risks can—or should—be transferred through fixed-price contracts.

Canada has favoured Public-Private Partnerships traditionally but now moving towards Alliance & Progressive Design Build, while Australia and New Zealand have pioneered Alliance Contracting. The United States has driven widespread adoption of Construction Management at Risk and Progressive Design-Build, particularly for healthcare, transportation and water infrastructure.

Across all markets, the trend is toward earlier contractor involvement, greater collaboration and more balanced risk allocation, especially for technically complex projects.

Final Thoughts

The most successful projects are not necessarily those delivered under the newest procurement model, but those where the delivery method aligns with the project’s objectives, complexity and risk profile.

Traditional approaches such as Design-Bid-Build continue to provide value where project scopes are well defined. CMAR, Design-Build and Progressive Design-Build offer increasing levels of contractor involvement while maintaining commercial discipline. Alliance and Integrated Project Delivery prioritize collaboration where uncertainty is high, while P3s remain an effective solution for large public infrastructure requiring long-term financing and asset management.

As Canada’s infrastructure investment continues to accelerate, owners who understand these delivery methods—and select the right one for the right project—will be best positioned to deliver projects on time, on budget and with lasting value for the communities they serve.

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