Layout and elevation benchmark before foundation

Confirm boundaries, setbacks, building axes and reference elevation before excavation/foundation rather than discovering an error after placement.

VERT / GREEN

Layout plan and benchmark are clearly identified.

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

Foundation axis not tied to plan
Do not excavate/place on assumed layout. Temporary benchmark can move
Create/protect a stable benchmark and recheck it. Project near setback/easement
Verify layout before irreversible work. Professional layout available
Archive plan, points and date in the home file.

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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