Know what the city will flag before you submit.
Run your plans through Olumba.
Olumba guide
Answer a couple of questions and I’ll point you to the right next step.
Have plans ready?
How long did round two cost, and who had to explain it?
You think back to your last project. Fill in what really happened and we’ll lay it out end to end, so you can see what it would have been worth to catch round two before it started.
I filed in , my city takes about weeks to look at it, my team needs weeks to turn a correction letter around, and that one went rounds.
There it is. 24 weeks, and 18 of them spent waiting on an answer somebody could have given you the morning you filed.
The grey stops being yours the second you hit submit. That is the part that costs you.
A round of corrections eats more of your team’s week than a check costs. You already know what an hour of that is worth.
Some people wait 6 weeks to hear what the city thinks. Some hear it today.
Every duration above is the one you entered, not our estimate.
Every finding arrives with its evidence.
Professionals act on evidence, not vibes. Here is what one finding looks like in your report.
Egress path exceeds allowable travel distance to exit discharge
The corridor route from Suite 210 measures roughly 265 feet to the nearest exit discharge, over the 250-foot limit for sprinklered B occupancies. This exact condition was flagged in 8 of the last 10 comparable sets we have seen from this jurisdiction.
Confidence
High
Seen in recent sets
8 / 10
Maps to
CBC 1017.2
Plan Proof and Backcheck are preliminary AI reviews. You confirm every item; they don’t replace your judgment or the city’s.
Scan the plans
Upload the PDF, pick the jurisdiction, get the likely correction letter in two minutes. Free preview, no account.
Letter arrivedParse the corrections
Drop the city’s letter and Align turns 9 pages into a tracked, assignable work list. Free, no account.
ResubmittingBackcheck it yourself first
Prove every item is answered before it goes back. Your first one is on us.
$39
Per check. No subscription necessary. Credits never expire.
City by city
Built on the correction letters your jurisdictions actually send, and on your own firm’s history as you parse it.
Every finding
Sheet reference, code or checklist item, and a confidence level. Evidence, not vibes.
Run the city’s review before you file.
Upload your plans
Drop in the PDF for one submittal. Plan Proof reads the drawings the way a plan checker would, sheet by sheet.
Get your likely corrections
Each finding carries a sheet reference, the code or checklist item it maps to, how often it shows up in real sets for your city, and a confidence level.
Fix them before you submit
Resolve the findings on your schedule, then file a cleaner set and skip the costly resubmittal loop.
Close the whole correction loop, not just the first pass.
Backcheck yourself before the city backchecks you. When the agency’s letter comes back, Olumba captures it and checks your resubmittal against it. You send back a set that answers every item, and you always know whose court the ball is in.
Plan Proof before you file
Likely corrections, fixed on your schedule
The city’s letter arrives
Paste or upload it. It becomes a tracked list, code refs intact
Backcheck it before the city does
Flags anything your resubmittal does not visibly address
Your next set can go in cleaner.
Upload your plans and see what your jurisdiction is likely to flag, with the evidence behind every finding.
Run your first check, $39