An initial plan analysis, before you submit.
Drop the PDF your architect sent you. In seconds Chert lists the sheets, finds the site address and city, and marks what a plan reviewer is likely to ask about first. A full analysis checks the set against your city’s rules and gives you the questions to bring to the counter.
Check a plan setNo account needed to start.
No scale shown on A-1. Reviewers usually ask for one on every plan sheet.
Ask the city: which side setback applies to this addition?
How it works
Drop your drawings
Agree to the terms, then drop one PDF or several. A free quick scan reads the title blocks and tells you what the set contains: sheets, kinds, address and city.
Sign in to see every note
Continue with Google or an email link. Your files stay private to you, and nothing beyond the quick scan runs until you sign in and choose to.
Run the full analysis
Pay once per analysis. Chert checks the set against the rules we have curated for your city and returns a report where every note points to a sheet and the code section behind it.
Launching in Pasadena and Los Angeles
Both cities build on the California Building Code, and each adds its own amendments and zoning. Chert keeps track of what each city has adopted, and adds cities as we curate their rules.
- Homeowners
- Understand the set you paid for, and what the city is likely to ask, in plain language.
- Architects and designers
- A second read for completeness before the set goes in, tied to sheet numbers you already use.
- Expediters
- Spot the gaps that send a submittal back, and arrive with the right questions.