Mason AI
AI plan review software for private plan reviewers
Mason AI launched on August 1, 2026 with 1 votes, #11,494 of 23,274 launches that month.
What it does
Mason AI is an AI-powered plan review assistant built for private plan reviewers, plans examiners, and plan checkers. It reads residential plan sets with 97% accuracy, checks them against the CRC, CPC, CEC, CMC, CalGreen, CWUIC, and Energy Codes, and drafts a first-pass comment letter with every flagged item linked to its code citation. Reviewers stay in full control nothing is added to the final letter without their signoff. Teams using Mason report finishing residential review about 40% faster
Finish plan review 40% faster on residential plans. Mason marks up plans, cites the building codes, and helps you write your response letter.
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