2D As-Built Drafting is the process of creating accurate technical drawings that document the current condition of existing buildings based on field measurements, surveys, or scan data. Unlike design drawings that show intended construction, as-built drawings capture actual constructed conditions including dimensional realities, material conditions, and system configurations. This documentation is critical for existing buildings as it provides reliable baseline information for renovation planning, facility management, code compliance verification, historical preservation, and property transactions. Accurate as-built documentation reduces project risks by revealing existing conditions before design or construction work begins.

We employ several methods to gather accurate existing building data depending on project requirements, building complexity, and documentation goals. For standard projects, we use conventional field measurement techniques with digital distance meters, measuring tapes, and manual documentation. For more complex facilities, we utilize advanced collection methods including 3D laser scanning, photogrammetry, and total station surveys. In specific cases, we reference existing documentation (original drawings, previous renovations) verified through field confirmation. For comprehensive documentation, we often employ combined approaches—using scanning for overall dimensions and traditional measurements for details—to ensure complete and accurate data collection.

We produce comprehensive as-built documentation packages including floor plans, reflected ceiling plans, building elevations, building sections, site plans, and key details of existing conditions. Our as-built drawings document architectural elements (walls, doors, windows, stairs), structural components (columns, beams, load-bearing elements), mechanical systems (HVAC, plumbing), electrical systems (panels, fixtures, distribution), and site features as required. We can develop specialized as-built documentation such as demolition plans, system diagrams, space utilization plans, and condition assessment drawings depending on project requirements. Each drawing set is tailored to the specific documentation needs and future use cases.

Our As-Built drawings maintain high accuracy standards appropriate to documentation purpose and collection methodology. Typical dimensional accuracy ranges from ±1/4" for conventional measurement methods to ±1/8" or better for advanced scanning techniques. Detail levels are tailored to project requirements—from basic spatial documentation showing primary architectural elements to comprehensive documentation including detailed moldings, mechanical equipment, and concealed conditions where accessible. We clearly communicate accuracy parameters and confidence levels in our documentation, noting assumptions for inaccessible areas. All drawings include appropriate measurement references, datum points, and methodological notes to establish documentation reliability.

For unknown or concealed conditions, we implement several strategies to maintain documentation integrity. We clearly identify assumed or extrapolated information using distinctive notation systems that differentiate verified measurements from probable conditions. Where appropriate, we employ non-destructive investigation techniques such as infrared thermography, ground-penetrating radar, or small inspection openings to gather data on concealed elements. Our documentation includes specific notes regarding inaccessible areas, assumptions made, and confidence levels for extrapolated information. When critical for project success, we may recommend targeted selective demolition to verify key concealed conditions before proceeding with major design or construction activities.

We develop As-Built documentation using industry-standard CAD platforms including AutoCAD, Microstation, and BricsCAD. Our drawing standards implement AIA layer conventions, consistent annotation styles, and appropriate drawing scales for clarity and usability. Standard deliverables include native CAD files (typically DWG format), universally readable DXF files, and PDF sets at multiple resolutions. For advanced requirements, we can provide GIS-compatible files with georeferenced data, IFC-format exports for BIM integration, and database-linked documentation for facility management systems. We readily adapt to client-specific CAD standards, naming conventions, and file organization requirements when needed.

As-Built drawings provide essential foundation information for renovation projects by revealing actual conditions that may differ from original design documentation. This accurate baseline reduces design assumptions, prevents costly field adjustments, and improves renovation estimate accuracy. For facility management, as-built documentation supports space planning, system maintenance, compliance verification, and asset tracking. When developed with appropriate attribution, these drawings enable database integration for computerized maintenance management systems. Additionally, as-built documentation provides critical reference information for emergency response planning, accessibility compliance, and future modification projects throughout the building lifecycle.

The As-Built documentation process follows a structured methodology beginning with project planning and scope definition. Data collection typically requires 1-4 days on-site depending on building size and complexity, with proper advance coordination to ensure access to all areas. Data processing and initial drafting generally requires 2-3 weeks for standard projects, with review and verification cycles adding 1-2 weeks to ensure accuracy. Complex or large facilities may require phased documentation approaches with correspondingly extended timelines. Throughout the process, we maintain regular client communication regarding progress, discovered conditions, and any access limitations that may affect documentation completeness.