sizeless surveys house connections & trenches with AI
sizeless delivers an AI-powered workflow for civil engineering — precise 3D twins of open trenches and house connections, directly for GIS and CAD.






From video to CAD plan - for civil engineering, district heating, and house connections.
Accelerate Construction & Billing
Trenches are backfilled immediately after the video - no waiting for separate surveying appointments. Complete documentation is available weeks earlier, enabling faster billing and cash flow.
Quality & Audit-Proof Documentation
Continuous 3D evidence including third-party utilities and house entries (works without GPS in basement areas). Eliminates manual sketches and data silos - construction errors can be identified before backfilling.
Process Autonomy
Technicians document house connections independently via smartphone. Existing internal or external teams can handle a higher project volume through efficient workflows.
AI-powered workflow for civil engineering - from smartphone video to compliant revision documentation
- Step 01
Trench Capture
Standardized capture via iPhone Pro directly at the excavation - no special hardware, no extra appointments. Carried out by the existing project team.
- Step 02
3D Point Cloud
Algorithms developed at ETH Zurich generate a high-resolution 3D point cloud of the open trench - centimeter-accurate.
- Step 03
2D CAD As-Built Plan
Industry-standard as-built plans (DWG/DXF) for revision documentation. Couplings and pipes are quickly identified - measurement extraction simplified.
- Step 04
3D Model & GIS
Digital twins of the pipe route including house entries. Seamless integration into GIS systems for future-proof planning and maintenance.
One capture. Every output.
A single smartphone scan produces every deliverable your team already works with — ready to drop into existing tools.
Centimeter-accurate point cloud
High-resolution 3D reconstruction of the scanned space. Objective basis for earthwork volumes, dimensions, and audit trails.
Scan with SiteScan — the sizeless iPhone app
Your field team captures properties, trenches, and technical rooms in minutes using a guided iPhone Pro workflow. No extra hardware, no specialist training.
Download on the App Store
Founded by engineers from ETH Zurich, UC Berkeley and MIT



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Request an In-Person Demo
Interested in seeing sizeless in action? Schedule a personalized demo at your property.