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Scan to CAD

Millimetre-Accurate As-Built Documentation

Transforming complex 3D laser scan data into clean, editable, and layered AutoCAD drawings (DWG/DXF).

What is Scan to CAD?

Scan to CAD is the professional process of capturing real-world physical spaces using 3D Laser (LiDAR) scanners and meticulously converting that raw data (Point Clouds) into precise 2D or 3D CAD models.
Unlike traditional manual surveying, which is prone to human error, Scan to CAD captures every deviation, structural anomaly, and undocumented change, providing you with a "Digital Replica" of your site that is accurate within millimetres.

Our Core Deliverables

2D Architectural Plans

Highly detailed floor plans, reflected ceiling plans (RCP), and roof plans.

Elevations & Sections

Accurate vertical slices showing true building heights, facade details, and structural profiles.

3D Wireframe & Solid Models

Clean geometry for reverse engineering or basic 3D site visualization.

Site & Topographic Surveys

Converting terrain scans into usable CAD contours and site layouts.

Technical Workflow:

From Reality to DWG

Data Acquisition:

We receive your raw scan files (RCP, RCS, E57, or LGS).

Point Cloud Processing:

Our team cleans the "noise" and aligns multiple scans into a unified coordinate system.

Manual Redrafting:

Using our 15 years of AutoCAD expertise, we manually trace and vectorise the point cloud to ensure clean lines and logical layering—avoiding the "bloated" files typical of automated conversion.

Quality Audit (QA):

We overlay the final CAD linework against the original point cloud to verify that every wall, pipe, and window is within the specified tolerance.

Final Delivery:

You receive organized, standard-compliant DWG/DXF files ready for immediate design use.

High-Precision Floor Plans: From Laser Scans to Clean CAD

Transforming complex 3D point clouds into accurate, layered, and ready-to-use 2D architectural drawings.

The Scanotrek Difference

​Manual tape measurements and handheld distos often miss the "reality" of a building—slanted walls, non-90° corners, and structural thickness variations. By using 3D Laser Scanning, we capture every millimetre. Our experts then manually draft these details into AutoCAD, ensuring your floor plans represent the building exactly as it stands, not just how it was designed on paper.

Our Floor Plan Deliverables

  1. As-Built Floor Plans
  • ​Technical Detail: Comprehensive layouts showing all permanent structural elements, including walls (with true thickness), columns, doors, windows, and stairs.
  • ​The Benefit: An undeniable foundation for architects and engineers to begin renovation or extension designs without fearing “on-site surprises.”
  1. ​Reflected Ceiling Plans (RCP)
  • ​Technical Detail: Capturing the “upside-down” view of the ceiling, including lighting fixtures, HVAC diffusers, sprinkler heads, and soffit heights.
  • ​The Benefit: Vital for MEP coordination and interior design, ensuring new ceiling elements don’t clash with existing services.
  1. ​Furniture & Equipment Layouts
  • ​Technical Detail: Mapping the exact location of non-structural elements like workstations, medical equipment, or industrial machinery.
  • ​The Benefit: Perfect for space planning, office relocations, and facility management.
  1. BOMA & Area Calculations
  • ​Technical Detail: Precise calculation of Gross Floor Area (GFA), Net Lettable Area (NLA), and Rentable Area.
  • ​The Benefit: Essential for real estate transactions, leasing agreements, and asset valuation in the world’s competitive markets.

Exterior & Interior Elevations: High-Fidelity Vertical Documentation

Capturing every architectural detail, structural profile, and facade feature with millimetre precision.

The Scanotrek Approach to Elevations

​Traditional elevation surveys often rely on "best guesses" for high-reach areas or complex rooflines. At Scanotrek, we eliminate the guesswork. By extracting data from high-density 3D Point Clouds, we produce 2D elevation drawings that capture the true verticality of a structure—including subtle leans, historic ornamentation, and precise floor-to-floor heights.

Our Elevation Services

  1. Building Facade Elevations
  • ​Technical Detail: Accurate 2D representation of the building’s exterior “skin,” including window placements, door openings, material transitions, and decorative moldings.
  • ​The Benefit: Essential for facade restoration, cladding projects, and urban planning approvals.
  1. ​Interior Wall Elevations
  • ​Technical Detail: Detailed vertical views of interior rooms, showing exact locations of MEP fixtures, built-in cabinetry, wall finishes, and structural openings.
  • ​The Benefit: A vital tool for interior designers and fit-out contractors to ensure millwork and equipment fit perfectly.
  1. ​Streetscape & Context Elevations
  • ​Technical Detail: Capturing the elevation of a building in relation to its neighbors and the street level.
  • ​The Benefit: Critical for architects working on “infill” projects or heritage zones where the building’s relationship with its surroundings is a legal requirement.
  1. ​Structural Profile & Sectional Elevations
  • ​Technical Detail: Showing the vertical profile of structural members, roof pitches, and foundation-to-ceiling heights.
  • ​The Benefit: Provides engineers with the exact data needed for structural calculations and extensions.

Key Features of Our Elevation Drawings

True Verticality

We capture "as-built" reality, documenting if a building is slightly out of plumb or if floor slabs have settled.

Intricate Detail

From ornate cornices on heritage buildings to complex curtain walls on modern skyscrapers.

Layered Documentation

Drawings are organized by material, structural elements, and annotations for easy integration into your design workflow.

Building Sections: Internal Slices with Absolute Accuracy

Visualizing the vertical relationship between floor slabs, structural members, and hidden ceiling voids.

The Reality of Building Sections

A section drawing is a "vertical cut" through your building. While traditional surveying often relies on "assumed" floor thicknesses and "estimated" ceiling heights, Scanotrek uses 3D Laser Scanning to see through the complexity. We provide sections that show the exact relationship between the floor, the ceiling, and the structural elements in between.

Our Sectional Drawing Services

  1. Full Building Cross-Sections
  • ​Technical Detail: Strategic cuts through the entire width or length of a building to show floor-to-floor heights, stairwell alignments, and roof pitches.
  • ​The Benefit: Essential for understanding the overall volume of a building and identifying potential structural issues or opportunities for vertical expansion.
  1. ​Detailed Wall Sections
  • ​Technical Detail: High-zoom “slices” through a specific wall assembly showing the relationship between the exterior cladding, structural core, and interior finishes.
  • ​The Benefit: Provides the level of detail required for contractors to understand insulation layers, moisture barriers, and structural attachments.
  1. ​Ceiling Void & Plenum Sections
  • ​Technical Detail: Mapping the tight spaces between the suspended ceiling and the structural slab.
  • ​The Benefit: Critical for MEP engineers. This shows exactly how much room is available for HVAC ducts, cable trays, and plumbing lines, preventing costly clashes during installation.
  1. ​Site & Topographic Sections
  • ​Technical Detail: Sections that show the building’s relationship to the surrounding sloping terrain or subterranean levels.
  • ​The Benefit: Essential for foundation design, drainage planning, and basement renovation projects.

Key Features of Scanotrek Sections

True Thickness Capture

We don't guess floor slab thicknesses; we measure them through stairwells and elevator shafts for 100% accuracy.

Structural Alignment

We document if columns are perfectly aligned across floors or if there is structural shifting over time.

Complex Geometry

From vaulted ceilings to slanted roofs, we capture the exact curvature and angle that manual tools cannot.

Precision Roof Plans: Capturing Complex Geometry from Above

Detailed 2D documentation of roof structures, drainage systems, and mechanical assets using high-accuracy 3D scans.

The Challenge of Accurate Roof Documentation

Roofing systems are often the most inaccessible and undocumented parts of a building. Traditional measurements frequently miss subtle pitches, parapet details, or the exact location of HVAC units. By utilizing 3D Laser Scanning, Scanotrek captures the entire roofs cape safely from the ground or adjacent high points, ensuring every vent, skylight, and slope is mapped with millimetre precision.

Our Roof Planning Services

  1. As-Built Roof Layouts
  • ​Technical Detail: Comprehensive 2D plans showing roof outlines, ridges, valleys, hips, and gables.
  • ​The Benefit: Provides architects and roofing contractors with a perfect “starting point” for repairs, solar panel layouts, or structural extensions.
  1. ​Rooftop MEP & Asset Mapping
  • ​Technical Detail: Precise location and dimensioning of all rooftop equipment, including AHUs, chillers, solar arrays, cooling towers, and satellite equipment.
  • ​The Benefit: Essential for maintenance teams and MEP engineers to plan upgrades or assess structural loading.
  1. ​Drainage & Pitch Analysis
  • ​Technical Detail: Mapping of roof slopes, drainage directions, gutters, downspouts, and overflow scuppers.
  • ​The Benefit: Helps identify potential “ponding” areas and ensures new drainage designs align with existing site conditions.
  1. ​Parapet & Detail Sections
  • ​Technical Detail: Accurate drawings of parapet wall heights, thicknesses, and flashing details.
  • ​The Benefit: Critical for waterproofing consultants and facade engineers during building envelope renovations.

Technical Features of Scanotrek Roof Plans

Pitch Documentation

We calculate and annotate true roof slopes (degrees or ratios) directly from the point cloud data.

Asset Scheduling

We can provide a detailed schedule of all rooftop equipment found during the scan.

Clash Awareness

By documenting existing roof-mounted steel and piping, we help prevent conflicts with new equipment installations.

Technical Specifications

Software

AutoCAD Architecture, BricsCAD.
Accuracy

Horizontal and vertical dimensions within ±2mm to ±5mm.
Output Formats

.DWG, .DXF, .PDF.
Standard Annotations

Slope directions, spot elevations (A.O.D/F.F.L), and equipment tags.

Technical Standards & Customization

We don't just "auto-trace." We follow professional drafting standards to ensure the files are easy for your team to use:

  1. ​Clean Layering: Organized layers for walls, windows, text, and dimensions following AIA or client-specific standards.
  2. ​Precise Line work: Zero overlapping lines and perfectly snapped intersections.
  3. ​Smart Annotation: Clear room names, area tags, and level indicators.
Why Choose Scan to CAD?
  • Eliminate Site Re-visits: Capture everything in one scan. No more "forgotten measurements."
  • Clash-Aware Design: See exactly where existing structural beams or pipes are located before you design.
  • BOMA/Lease Calculations: Get precise rentable area calculations for commercial properties.
  • Historical Preservation: Document intricate details of heritage structures that manual tools simply cannot capture.

Technical Specifications

Standard Tolerances:

±2mm to ±5mm.

Software Compatibility:

AutoCAD, BricsCAD, Micro Station, Civil3D, Trimble.

File Formats Received:

.E57, .RCP, .RCS, .LAS.

File Formats Delivered:

.DWG, .DXF, .PDF.

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