Article
Why Choose a Design and Build Approach for Your Project?
Singapore’s construction demand hit S$44.2 billion in 2024, the highest since records began, with projections of S$47-53 billion in 2025 driven by transport, commercial, and housing projects like Changi Terminal 5. Project owners in both public and private sectors are facing tighter timelines and higher performance expectations.
Amid this surge, the design and build (D&B) approach stands out by integrating design and construction under one team, delivering projects up to 30% faster than traditional methods while cutting costs through unified accountability. The Design & Build (D&B) delivery method is rapidly becoming the preferred solution.
For busy professionals juggling tight deadlines and rising material prices, D&B offers a punchy path to on-time, on-budget delivery in a market growing at 5.2% in 2025.
In the midst of rising costs, labour shortages, and productivity demands, Singapore’s builders increasingly require a model that reduces risk, accelerates timelines, and supports innovation. D&B provides exactly that.
The Pitfalls of Sticking to Traditional Design-Bid-Build
Many project owners default to the traditional design-bid-build (DBB) model. The assumption is that separating design and construction contracts gives them more control. In practice, it divides responsibility across two teams with different priorities, and that gap is where problems start.
DBB creates conditions for:
- Misaligned teams working from different assumptions
- Frequent change orders as design intent meets construction reality
- Delays caused by slow decision-making across separate contracts
The cost impact is significant. DBB projects can run up to 15% higher in total cost compared to integrated delivery models, and timelines stretch further as coordination issues compound.
This gap widens as projects grow more complex. Singapore’s construction environment now routinely involves smart building systems, Green Mark compliance, and DfMA integration. DBB was not built for that level of coordination. Each added layer of complexity creates another point where separately appointed teams can fall out of step, and the project owner absorbs the cost.
The Power of Integrated D&B Delivery
Design and build (D&B) changes how projects get delivered in Singapore. By uniting design and construction under one team from day one, it removes one of the most common sources of delay: the gap between what is designed and what can actually be built.
This matters in Singapore’s market, where project timelines are tight and sustainability requirements are built into the approval process. When the contractor is involved from the start, design decisions are made with construction realities in mind. That means fewer surprises on site, fewer re-submissions to authorities, and a smoother path to practical completion.
The results across Singapore and comparable markets back this up:
- 75% of Singapore D&B users reported time savings of between 5% and 30% per project
- D&B projects achieve an average 14% reduction in delivery time compared to design-bid-build
- Overall delivery is faster by up to 33.5%, with construction speed improving by 12%
- Costs come in around 3% to 6% lower, with less cost growth and fewer programme overruns
Local projects demonstrate what this looks like in practice. The ISK Warehouse and Kranji Secondary School both reached completion ahead of conventional programme timelines, without any trade-off in build quality or compliance outcomes.
D&B works across residential, industrial, and institutional project types. For developers and owners who want faster delivery, tighter cost control, and a single point of accountability, it is the model that consistently produces those outcomes.

Practical Steps to Adopt D&B
Some still worry that the Design and Build process may sacrifice design flair for speed, yet Singapore evidence proves it matches DBB on aesthetics and functionality, with buildability prioritised through client-led briefs and single-point liability.
Concerns over workmanship fade as integrated teams reduce errors, evident in public projects meeting BCA standards without compromises. Cost unpredictability fears are dispelled by fixed-price models and phased overlaps, delivering 6-15% savings in volatile markets, far outweighing DBB’s change-order pitfalls.
1. Evaluate Project Suitability
Choose D&B for new builds under S$50 million GFA, especially commercial or institutional. For institutional projects like schools or offices (often S$10-25 million range), D&B leverages contractor expertise for practical, innovative designs tailored to client needs, such as sustainability features.
- Best for: new builds, simple-to-complex developments below S$50M GFA.
- Less suitable for: renovations or projects requiring heavy site-by-site customisation.
2. Choose the Right D&B Firm
Use BCA’s contractor directories to source BCA-registered D&B firms with DfMA and BIM credentials via official directories to secure 20%+ time reductions and fixed-price certainty.
Do not default to the lowest price. Evaluate proposals based on the team’s ability to deliver project goals, demonstrate value engineering capabilities, and show experience in similar D&B projects. Give preference to D&B firms where the contractor and designer have a proven, collaborative working relationship. Trust and transparent communication are paramount in this model.
3. Define Strong Tender Requirements
Select the contractor based on their fee, overheads, and an outline design/cost proposal. The selected contractor should work with the client’s team to finalise the detailed design and negotiate a Guaranteed Maximum Price (GMP) for the construction phase. This enables early contractor input and detailed design refinement before price lock-in. Here are other factors to consider:
- Fixed-price contracts
- Clear deliverables and KPIs
- Mandatory BIM Level 2 or higher
- Sustainability targets (Green Mark certification)
4. Pilot D&B Before Scaling Organisation-Wide
Launch D&B pilots on mid-scale fit-outs, benchmarking against DBB metrics for cost, time, and defects to build internal case studies. Understand that while D&B offers high cost certainty, changes requested by the client post-contract can be expensive, as the contractor has assumed full risk.
D&B as the Future-Proof Choice
D&B slashes risks and aligns perfectly with BCA targets for sustainable, high-productivity builds amid transport and commercial booms. D&B is a strategic approach that strengthens project outcomes across efficiency, cost, safety, and sustainability.
Many project owners voice initial concerns about switching to D&B. Here’s what the data shows:
1. “Will quality or aesthetics suffer?”
Singapore case studies show D&B projects match or exceed DBB performance in design quality and functionality. With early contractor involvement, designs become more buildable, reducing defects.
2. “Will I lose design control?”
This model has been tested extensively in public sector projects, with no reduction in architectural quality. Clients retain control through:
- Detailed briefs
- Design checkpoints
- Value engineering workshops
3. “Is cost truly predictable?”
Yes. D&B reduces variation orders and utilises overlapping phases, resulting in 6 to 15% cost savings, which is especially valuable during Singapore’s labour-tight conditions.
4. “Is it risky to depend on one contractor?”
Single-point accountability reduces risk, not increases it. Responsibility becomes clearer, with fewer disputes and faster resolution.Whether you represent a consultancy, developer, contractor, or facility owner, now is the ideal time to assess D&B feasibility for your next build.
Act Today
Singapore’s projected growth in construction demand from 2024 to 2025 makes this the perfect moment to adopt a delivery model that cuts risk, saves time, and enhances performance. If you’re planning to build soon;
- Refer to BCA’s D&B tender guidelines
- Consult project advisors for suitability assessments
- Share challenges or success stories to help refine industry practice
Connect with a certified D&B provider such as PRECISE Development today to fast-track your pipeline in this high-demand era.