VERT / GREEN
Layout plan and benchmark are clearly identified.
Layout and elevation benchmark before foundation
Confirm boundaries, setbacks, building axes and reference elevation before excavation/foundation rather than discovering an error after placement.
JAUNE / YELLOW
Visible site features are not automatically legal boundaries.
ROUGE / RED
For regulated layout, use the required surveyor/professional and obtain municipal confirmations.
Checkpoint before proceeding
What the professional checks
The surveyor/professional establishes layout where required; the site protects and cross-checks benchmarks before structural work.
Sources and references
Vérifié / checked: 2026-08-23
Related path
Continue with the right tools
These links connect this page to the next useful checks and decisions without repeating the full content.
Plan a complete construction projectConnect feasibility, design, permits, concealed work, commissioning and closeout.Open →Check permit triggersPrepare the questions and documents to confirm with the local authority.Open →Check a contractorDocument licence, insurance, scope, payments, changes and warranties.Open →Update a construction costEscalate a historical cost using comparable index values.Open →Prepare pre-delivery reviewRecord documents, enclosure, systems, finishes and deficiencies before closeout.Open →
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V14
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Advanced diagnostics to cross-check
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V17
Specialized systems to cross-check
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V18
Specialized diagnostics to verify
V18 connects systems that become costly or regulated when a primary project triggers them.
V19
Edge systems to integrate into the project
V19 covers interfaces that become important when multiple home systems interact.
V27
Project risks and overlooked interfaces
V27 connects payment, water, envelope, ventilation and jobsite details that often create costly surprises.
V28
Finish and service details to verify
V28 connects small details that become costly once finishes are closed.
V33
Invisible constraints before work
V33 checks electrical, legal, environmental and climate constraints that can block a project before demolition starts.
V34
Use, excavation and construction constraints
V34 connects use permits, soil, excavation, neighbouring structures and public-space logistics before hard-to-reverse work.