Plan Proof vs. Spreadsheets for Corrections
A spreadsheet logs corrections after the city sends them. Plan Proof predicts them before you submit — so you fix them on your schedule, not theirs.
| Feature | Spreadsheet | Plan Proof |
|---|---|---|
| When you learn about a correction | After the city sends the letter — you log it reactively | Before you submit — Plan Proof forecasts likely corrections up front |
| Jurisdiction-specific insight | None — a blank grid knows nothing about your city | Learned from real correction letters for that specific jurisdiction |
| Reading the plan set | Manual — you read every sheet yourself | Automatic — Plan Proof reads the drawings sheet by sheet |
| Evidence behind each item | Only what you type in by hand | Sheet reference, code or checklist item, real-set frequency, confidence level |
| Structuring a letter you already have | Copy each item by hand | The free Align parser extracts every item automatically |
| Initial setup time | Low — anyone can open a spreadsheet | Low — upload a plan set and run a check |
| Cost | Included in Google Workspace or Microsoft 365 | $49 per check — no subscription, no sales call |
Common questions
Why is a spreadsheet the wrong tool for corrections?
A spreadsheet is reactive — it only holds corrections after the city has already sent them, when the resubmittal clock is running. It has no way to tell you what your jurisdiction is likely to flag before you submit. That is the expensive part: the resubmittal you could have avoided.
What does Plan Proof do that a spreadsheet can't?
Plan Proof reads your plan set before you submit and predicts the corrections your jurisdiction is likely to flag, learned from real correction letters for that city. Each finding comes with a sheet reference, the code or checklist item, real-set frequency, and a confidence level — none of which a blank spreadsheet can give you.
What if I already have a correction letter?
Use the free Align parser. Upload the PDF and it extracts every correction item into a structured, easy-to-read list — so nothing gets missed on resubmittal. When you want to get ahead of the next set, run a Plan Proof check before you submit.
Catch your corrections before the city does
Run a Plan Proof check for $49 — no subscription, no sales call. Or structure a letter you already have with the free Align parser.