Whether it's a custom home or a multi-residential development, redesign is one of the most common causes of project delays, budget increases, and documentation revisions. Many design changes are not driven by client requests or planning requirements. They occur because key structural constraints are identified too late, after architectural layouts have already been developed and decisions have been made.
Early structural coordination helps project teams identify opportunities and constraints sooner, allowing architects, developers, and consultants to make informed decisions before substantial redesign becomes necessary.
Why Redesign Happens
In many residential projects, architectural concepts are developed before structural systems are properly considered.
At concept stage, this approach can appear efficient. However, as engineering design progresses, conflicts often emerge between the proposed architecture and the structural requirements needed to support it.
Common examples include:
Large unsupported spans requiring deeper structural members
Basement layouts conflicting with column locations
Architectural openings impacting load paths
Insufficient allowances for retaining structures
Drainage and civil requirements affecting site layouts
Transfer structures increasing construction complexity and cost
When these issues are identified late, redesign becomes unavoidable.
The Cost of Late Structural Changes
Design revisions affect more than engineering documentation.
A seemingly minor structural change can create a chain reaction across multiple disciplines, requiring updates to architectural drawings, services coordination, schedules, and consultant documentation.
Potential impacts include:
Additional consultant fees
Delays to documentation programs
Revisions during planning or building permit stages
Increased construction costs
Builder pricing uncertainty
Construction delays due to unresolved coordination issues
For developers, these outcomes directly impact project feasibility and delivery certainty.
Structural Coordination Begins Before Detailed Design
Effective coordination starts during concept development rather than after architectural layouts have been finalised.
Early engineering involvement allows the project team to evaluate:
Structural framing options
Preliminary column locations
Basement and retaining strategies
Construction methodologies
Site constraints
Drainage and civil requirements
Material selection and structural efficiency
By reviewing these factors early, project teams can avoid progressing concepts that may later require significant modification.
The Importance of Informed Decision-Making
One of the most valuable outcomes of early coordination is improved decision-making.
Rather than discovering structural implications after design development, project teams can assess options while flexibility still exists.
For example:
A proposed apartment building may include large architectural setbacks, extensive glazing, or open-plan layouts. While each feature may be achievable, they can introduce additional structural complexity.
Understanding these implications early enables architects and developers to compare alternatives and determine which solutions best balance design intent, buildability, and project budget.
Using 3D Modelling to Improve Coordination
Modern project delivery benefits significantly from coordinated 3D modelling.
At STC Engineering, projects are developed in Revit to improve visibility and coordination between disciplines.
Three-dimensional modelling allows project teams to:
Visualise structural systems earlier
Identify potential conflicts before documentation
Review coordination between architectural and engineering elements
Assess design options efficiently
Reduce documentation discrepancies
This approach provides greater clarity during decision-making and reduces the likelihood of coordination issues being discovered during construction.
Creating a Clear Design Path
Projects perform best when key decisions are made at the appropriate stages.
A structured design process allows stakeholders to review concepts, confirm preferred solutions, and establish clear design parameters before detailed engineering commences.
This reduces the need for repeated redesign cycles and allows documentation to progress more efficiently.
The result is a more coordinated project with greater certainty for all parties involved.
Better Coordination Leads to Better Outcomes
Early structural coordination is not simply about avoiding engineering issues. It is about improving the overall project delivery process.
When structural and civil requirements are considered from the beginning, project teams can make informed decisions earlier, reduce redesign, improve buildability, and achieve greater confidence in project outcomes.
For residential developments where coordination complexity is high, early engineering involvement can have a significant impact on programme certainty, documentation quality, and construction efficiency.
