Permit Prep / Washington / King County
Verified jurisdiction — rules read from the department's own published sources
King County ProjectDox Drawing File Naming & Plan Splitting
King County Department of Local Services, Permitting Division publishes filename rules for plans uploaded to Avolve ProjectDox (application first filed on MyBuildingPermit.com). Permit Prep splits your combined plan set into one PDF per drawing sheet and names each file in that pattern, in your browser.
Who files with King County, and who does not
King County's Permitting Division reviews permits for unincorporated King County. Applications start on MyBuildingPermit.com, the shared eastside intake portal, and the plan files themselves land in Avolve ProjectDox once the application is accepted for screening. If your parcel is inside Seattle, Bellevue, Kent, Renton or any other incorporated city, none of the naming rules on this page apply — those cities run separate permit systems.
Why the record number leads every filename
King County's naming pattern starts with the record number the county assigns at intake (for example DWEL24-9999 for a dwelling or ADDC25-0000 for an addition). Because the record number is issued by the county rather than by your CAD software, you cannot name drawing files correctly before your application is accepted — collect the number first, then split and name the set.
Discipline codes and the resubmittal rule
The sheet number is taken from the drawing itself, using the county's discipline codes: A architectural, S structural, P/M plumbing, E electrical, M mechanical, L landscape, C civil, LS life safety, V survey, FP fire protection, SC smoke control. When a sheet comes back with corrections, upload the fix under the identical filename — no date, no time stamp, no "rev2" — so ProjectDox stacks it as a new version of the same sheet instead of creating a duplicate.
Naming pattern
Template
{record} {sheetNumber} {sheetTitle}
Example
DWEL24-9999 A1.01 First Floor Plan.pdf
Correct King County filename examples
| Architectural floor plan | DWEL24-9999 A1.01 First Floor Plan.pdf |
|---|---|
| Structural sheet | DWEL24-9999 S2.01 Foundation Plan.pdf |
| Resubmitted sheet (same name) | DWEL24-9999 A1.01 First Floor Plan.pdf |
| Non-drawing document | DWEL24-9999 Affidavit.pdf |
- Drawings must be uploaded as single-sheet PDF files — one PDF per plan sheet.
- Drawing filenames follow King-County-Record-Number_Sheet#_Plan-Type, e.g. "DWEL24-9999 A1.01 First Floor Plan".
- Filenames must not contain date or time stamps, so ProjectDox can version resubmittals of the same sheet.
- Resubmitted sheets keep the exact same filename — ProjectDox versions them automatically.
- PDF only. Discipline codes: A architectural, S structural, P/M plumbing, E electrical, M mechanical, L landscape, C civil, LS life safety, V survey, FP fire protection, SC smoke control.
Submission requirement summary
Requirements last verified: 2026-09-06. Blank rows mean the published source we read does not state that rule — it does not mean anything goes.
| Submission platform | Avolve ProjectDox (application first filed on MyBuildingPermit.com) |
|---|---|
| One PDF per sheet or combined set | Single-sheet PDF files — one PDF per plan sheet |
| File naming format | {record} {sheetNumber} {sheetTitle} — e.g. DWEL24-9999 A1.01 First Floor Plan.pdf |
| Maximum filename length | Not specified in the verified source |
| Spaces in filenames | Not specified in the verified source |
| Prohibited characters | No date or time stamps in filenames, so ProjectDox can version resubmittals. |
| Sheet number requirements | Sheet number as printed on the drawing, following King County's discipline codes (A, S, P/M, E, M, L, C, LS, V, FP, SC). |
| Drawing orientation | Not specified in the verified source |
| Page size | Not specified in the verified source |
| PDF security | PDF only |
| Color / grayscale | Not specified in the verified source |
| Other published requirements | Resubmitted sheets keep the exact same filename. Reports, calculations and forms are named separately. |
How PDFOnCall Permit Prep helps
- Splits your combined plan set into one PDF per drawing sheet, in your browser — the format King County Department of Local Services, Permitting Division asks for.
- Applies the pattern {record} {sheetNumber} {sheetTitle} to every sheet, so filenames are consistent across the whole set.
- Reads the sheet number and title from each title block and flags anything it is unsure about for you to correct before export.
- Warns on filenames that break the length or character rules published above, instead of letting the upload fail at the portal.
How to prepare a King County plan set for ProjectDox
- File the application on MyBuildingPermit.com and wait for King County to assign your record number (for example DWEL24-9999). That number starts every drawing filename.
- Split the combined plan set into single-sheet PDFs — King County asks for one PDF per plan sheet, and publishes its own quick guide for splitting plan sets into single pages.
- Name each sheet record number, sheet number, sheet title: DWEL24-9999 A1.01 First Floor Plan.pdf. No date or time stamps, so ProjectDox can version resubmittals of the same sheet.
- Keep reports, calculations, and forms out of the drawing split — they are separate documents with their own names, such as DWEL24-9999 Affidavit.
- On a resubmittal, upload the corrected sheet under the exact same filename. ProjectDox versions it for you.
Permit Prep does the splitting and the filename pattern. You still confirm the items under "Check these yourself" — those are not things software can verify for you.
What applies where
- Scope: Applies to permits processed by King County's Permitting Division — generally unincorporated King County. Cities inside the county (Seattle, Bellevue, Kent and others) run their own permit systems and different rules.
- Stage: Plan upload after your application is accepted for screening. Initial submittal and resubmittals both use the same filenames.
- Upload portal: Avolve ProjectDox (application first filed on MyBuildingPermit.com)
Check these yourself
- Each sheet must leave a 3" x 3" clear space in the lower-right corner for the King County approval stamp. Permit Prep flags sheets for you to check and never scales or crops a drawing to create that space.
- Reports, calculations, and forms are separate documents with their own naming (e.g. "DWEL24-9999 Affidavit") — they are not drawing sheets.
- Confirm signing and stamping requirements before you upload.
What the source does not say
- King County's pages do not state a maximum filename length or a list of forbidden characters. Permit Prep applies its own conservative filename safety rules instead of a published limit.
Where this came from
- King County — Avolve ProjectDox (file standards & naming conventions)
- King County — Splitting Plan Sets into Single Pages quick guide (PDF)
Read on 2026-09-06. Building departments change their rules without notice — open the links above and confirm before you submit.
Frequently asked questions
Does King County accept a combined plan set PDF?
No. King County's ProjectDox page asks for single-sheet PDF files — one PDF per plan sheet — and the county publishes its own quick guide for splitting plan sets into single pages.
Where do I get the King County record number for my filenames?
The county assigns it when your application is filed on MyBuildingPermit.com, for example DWEL24-9999. It is the first part of every drawing filename.
Do King County's naming rules apply in Seattle or Bellevue?
No. These rules cover permits processed by King County's Permitting Division, generally unincorporated King County. Cities inside the county run their own permit systems with their own requirements.
How much clear space does the King County approval stamp need?
Each sheet must leave a 3" x 3" clear area in the lower-right corner. Permit Prep flags sheets for you to check and never scales or crops a drawing to create that space.
Does PDFOnCall upload my plans anywhere?
No. Your plan PDF is read and split in your browser on your device. Sheet text, thumbnails, and filenames stay local.
Is this approved by King County Department of Local Services, Permitting Division?
No. PDFOnCall is an independent tool and is not affiliated with, endorsed by, or approved by any building department or portal vendor. These rules were read from the sources listed on this page on 2026-09-06; confirm them before you submit.
Other places in Washington
Verified jurisdictions
These are the places whose published filename rules we have read end to end.
Related tools and guides
PDFOnCall summarizes publicly available permit submission requirements for convenience. Building department requirements can change. Always verify current requirements with the issuing jurisdiction before submission. PDFOnCall is an independent tool. It is not affiliated with, endorsed by, or approved by any building department or permit portal vendor.