Digital Building Permit Submissions, The Current State
Planning and building permit processes have been gradually moving toward digital submission in many countries. Online portals for building applications are now available in numerous municipalities, allowing applicants to submit plans, forms, and supporting documents electronically rather than delivering physical copies to a planning office.
Alongside this convenience, digital submission brings specific technical requirements. Planning authorities specify acceptable file formats (usually PDF), maximum file sizes, resolution requirements for drawings, and naming conventions. These requirements vary between jurisdictions, so always confirm the exact specifications with your local planning authority before preparing your submission.
What Documents Does a Building Permit Application Require?
A complete building permit application typically includes: completed application forms (signed and dated), site location plan, floor plans for all levels, section drawings through the building, elevation drawings showing all four sides, a written building description, structural and energy compliance calculations, and any jurisdiction-specific supplementary forms.
For digital submission, every one of these documents must be in PDF format. Technical drawings usually originate from CAD software (AutoCAD, ArchiCAD, or similar), which exports PDF directly. Application forms are often made available by planning authorities as fillable PDF forms.
Preparing Technical Drawings for PDF Submission
Technical drawings present the most common submission problems. The three most frequent issues: files are too large (hundreds of megabytes), line weights do not reproduce correctly in PDF, or the scale is not maintained through the export process.
For correct PDF output from CAD software: choose the correct scale at export (typically 1:100 for floor plans, 1:50 for detailed drawings) and ensure the plot style correctly defines line weights. Most planning authorities specify minimum line weights for submitted drawings, this information should be obtained before exporting.
Oversized files can be reduced using the compress PDF tool. Exercise caution with compression levels: technical drawings need sufficient resolution to keep dimensions and annotations legible. Test the compressed output at 100 percent zoom to confirm text and dimensions remain clearly readable.
Assembling the Complete Application Package
Once all individual documents are in PDF format, they are assembled in the order specified by the planning authority. Many authorities publish a required document order: application forms first, then location plan, then floor plans, sections, elevations, calculations, and supplementary documents.
The merge PDF tool combines files in any specified order into a single submission document. Some authority portals alternatively require individual file uploads for each document type rather than a single combined file, check which approach your specific authority requires.
Digital Signatures on Application Forms
Requirements for signatures on digitally submitted building applications vary. Some authorities accept a scanned wet signature; others require a qualified electronic signature that meets digital identity verification standards. A scanned signature involves signing on paper, photographing or scanning the signature, and inserting it as an image into the PDF form before submission.
The sign PDF tool enables adding signatures to PDF documents. For legally valid digital signatures meeting regulatory requirements (such as EU eIDAS or US ESIGN standards), a qualified electronic signature service may be required, check your local planning authority's accepted signature types.
Common Submission Errors
The most frequent error: the total file size exceeds the portal's upload limit. Many planning authority portals cap uploads at 20 to 50 MB per file. Check the file size of your compiled application package early and compress or split if necessary before the submission deadline.
Second common error: incorrect page orientation. Architectural drawings are typically landscape; application forms are portrait. When combined into a single document, inconsistent orientations create a disjointed impression. Correct any rotated pages using the rotate tool before the final merge.
Third: annotations and dimensions that are clear on screen but too small to read when printed. Planning authorities will print submitted drawings for review. Test print the drawings before submission to confirm all text and dimensions are clearly legible at the printed scale.
Archiving the Approved Permit
When planning permission is granted, the approval decision often arrives as a PDF document. This approval is legally significant and must be preserved for the life of the building and beyond. Archive it using PDF/A format for reliable long-term accessibility, with a clear file name and stored in multiple backup locations.