Connecting human expertise with purpose‑built AI
Save time. Accelerate code compliance.
Save time. Accelerate code compliance.
Save time. Accelerate code compliance.
Ichi is an AI-native platform that delivers instant building code answers, helps plan examiners write high-quality code comments, enables architects to interpret comment letters, and supports building officials in training new staff—all within a web-based experience accessible anywhere, for any project, of any size, in any jurisdiction.
Ichi is an AI-native platform that delivers instant building code answers, helps plan examiners write high-quality code comments, enables architects to interpret comment letters, and supports building officials in training new staff—all within a web-based experience accessible anywhere, for any project, of any size, in any jurisdiction.
Ichi is an AI-native platform that delivers instant building code answers, helps plan examiners write high-quality code comments, enables architects to interpret comment letters, and supports building officials in training new staff—all within a web-based experience accessible anywhere, for any project, of any size, in any jurisdiction.
Authorized
Licensee
Yes, it’s that simple.
Ichi can search and understand thousands of pages of codes and documents in an instant. So you can spend less time digging and more time focusing on the things that matter.
Ichi can search and understand thousands of pages of codes and documents in an instant. So you can spend less time digging and more time focusing on the things that matter.
AI You Can Trust
PURPOSE-BUILT AI FOR CONSTRUCTION complience
PURPOSE-BUILT AI FOR CONSTRUCTION complience
Ask in any language. Upload drawings, photos, calculations, reports, and more. Ichi understands the full complexity of construction documents — and returns accurate, cited answers in seconds.
Ask in any language. Upload drawings, photos, calculations, reports, and more. Ichi understands the full complexity of construction documents — and returns accurate, cited answers in seconds.
Ask in any language. Upload drawings, photos, calculations, reports, and more. Ichi understands the full complexity of construction documents — and returns accurate, cited answers in seconds.
Ask in any language. Upload drawings, photos, calculations, reports, and more. Ichi understands the full complexity of construction documents — and returns accurate, cited answers in seconds.
on average to get a complete answer
on average to get a complete answer
on average to get a complete answer
Every Code. Always in Context.
BUILT-IN ACCESS TO THE RIGHT CODE
BUILT-IN ACCESS TO THE RIGHT CODE
Click any citation to instantly view the source — no PDF hunt, no tab overload, no physical books. Read the full code in context, compare it with AI’s summary, and access from anywhere.
Click any citation to instantly view the source — no PDF hunt, no tab overload, no physical books. Read the full code in context, compare it with AI’s summary, and access from anywhere.
Click any citation to instantly view the source — no PDF hunt, no tab overload, no physical books. Read the full code in context, compare it with AI’s summary, and access from anywhere.
Click any citation to instantly view the source — no PDF hunt, no tab overload, no physical books. Read the full code in context, compare it with AI’s summary, and access from anywhere.
ALL
ALL
ALL
codebooks searchable and clickable, in one place
codebooks searchable and clickable, in one place
codebooks searchable and clickable, in one place
Stay Organized. Stay in Sync.
DESIGNED FOR REAL COLLABORATION
DESIGNED FOR REAL COLLABORATION
Projects mirror your real jobs — with channels for every file, thread, and conversation. Everything stays visible, searchable, and accessible to your entire team.
Projects mirror your real jobs — with channels for every file, thread, and conversation. Everything stays visible, searchable, and accessible to your entire team.
Projects mirror your real jobs — with channels for every file, thread, and conversation. Everything stays visible, searchable, and accessible to your entire team.
Projects mirror your real jobs — with channels for every file, thread, and conversation. Everything stays visible, searchable, and accessible to your entire team.
to learn and master Ichi
to learn and master Ichi
to learn and master Ichi
hours saved 1st month
hours saved 1st month
hours saved 1st month
hours saved 1st month
Teams save 50+ hours in their first month by reducing drafting, research, and review time.
faster plan review
faster plan review
faster plan
review
faster plan
review
Teams cut plan review time by 50% with instant answers and code summaries.
sec for deep analysis
sec for deep analysis
sec for deep analysis
sec for deep analysis
Teams get expert-grade document analysis in under 30 seconds — even for 100s of pages.

For Building Officials and Fire Marshals
For Building Officials and Fire Marshals
Problem
Building officials and fire marshals face staff shortages, lengthy training periods, and the challenge of enforcing complex codes across diverse projects and sites.
Building officials and fire marshals face staff shortages, lengthy training periods, and the challenge of enforcing complex codes across diverse projects and sites.
Building officials and fire marshals face staff shortages, lengthy training periods, and the challenge of enforcing complex codes across diverse projects and sites.
Building officials and fire marshals face staff shortages, lengthy training periods, and the challenge of enforcing complex codes across diverse projects and sites.
Solution
Ichi accelerates code compliance, providing instant answers, consistent reviews, and seamless collaboration—reducing training burdens, mitigating staff attrition, and ensuring faster, more accurate approvals. With AI-powered guidance, Ichi helps lesser-trained staff find the right answers with less oversight, freeing up senior officials to focus on higher-priority tasks.
Ichi accelerates code compliance, providing instant answers, consistent reviews, and seamless collaboration—reducing training burdens, mitigating staff attrition, and ensuring faster, more accurate approvals. With AI-powered guidance, Ichi helps lesser-trained staff find the right answers with less oversight, freeing up senior officials to focus on higher-priority tasks.
Ichi accelerates code compliance, providing instant answers, consistent reviews, and seamless collaboration—reducing training burdens, mitigating staff attrition, and ensuring faster, more accurate approvals. With AI-powered guidance, Ichi helps lesser-trained staff find the right answers with less oversight, freeing up senior officials to focus on higher-priority tasks.
Ichi accelerates code compliance, providing instant answers, consistent reviews, and seamless collaboration—reducing training burdens, mitigating staff attrition, and ensuring faster, more accurate approvals. With AI-powered guidance, Ichi helps lesser-trained staff find the right answers with less oversight, freeing up senior officials to focus on higher-priority tasks.
fewer questions to senior staff
Follow-up questions to senior staff drop by 50% within the first three weeks of using Ichi.
minutes to get started
Start seeing value in under 5 minutes, with no IT setup or onboarding delays.
For Plans Examiners and Inspectors
For Plans Examiners and Inspectors
Problem
Construction codes are becoming more complex. Plan examiners and inspectors face ever-growing workloads with limited resources, increasing pressure to keep up with evolving regulations.
Construction codes are becoming more complex. Plan examiners and inspectors face ever-growing workloads with limited resources, increasing pressure to keep up with evolving regulations.
Construction codes are becoming more complex. Plan examiners and inspectors face ever-growing workloads with limited resources, increasing pressure to keep up with evolving regulations.
Construction codes are becoming more complex. Plan examiners and inspectors face ever-growing workloads with limited resources, increasing pressure to keep up with evolving regulations.
Solution
Ichi accelerates code compliance for both permit approvals and inspections, delivering instant answers, consistent comments, and seamless collaboration—accessible anytime, from any device. By saving time, reducing backlog, and improving accuracy, Ichi keeps projects on track without sacrificing quality.
Ichi accelerates code compliance for both permit approvals and inspections, delivering instant answers, consistent comments, and seamless collaboration—accessible anytime, from any device. By saving time, reducing backlog, and improving accuracy, Ichi keeps projects on track without sacrificing quality.
Ichi accelerates code compliance for both permit approvals and inspections, delivering instant answers, consistent comments, and seamless collaboration—accessible anytime, from any device. By saving time, reducing backlog, and improving accuracy, Ichi keeps projects on track without sacrificing quality.
Ichi accelerates code compliance for both permit approvals and inspections, delivering instant answers, consistent comments, and seamless collaboration—accessible anytime, from any device. By saving time, reducing backlog, and improving accuracy, Ichi keeps projects on track without sacrificing quality.

seconds to generate code comments
Draft clear, code-referenced comments in under 5 seconds.
seconds to write compliance emails
Write high-quality code compliance emails in less than 20 seconds, ready to send internally or externally.

For AECs and Developers
For AECs and Developers
Problem
Architects, engineers, contractors, and developers face delays in achieving code-compliant designs, navigating code comments, and justifying compliance decisions—both during plan review and on the job site.
Architects, engineers, contractors, and developers face delays in achieving code-compliant designs, navigating code comments, and justifying compliance decisions—both during plan review and on the job site.
Architects, engineers, contractors, and developers face delays in achieving code-compliant designs, navigating code comments, and justifying compliance decisions—both during plan review and on the job site.
Architects, engineers, contractors, and developers face delays in achieving code-compliant designs, navigating code comments, and justifying compliance decisions—both during plan review and on the job site.
Solution
Ichi accelerates approvals by providing instant code guidance, clear remediation paths, and better documentation—helping AECs resolve issues faster, streamline collaboration with plans examiners, and keep construction moving without costly delays.
Ichi accelerates approvals by providing instant code guidance, clear remediation paths, and better documentation—helping AECs resolve issues faster, streamline collaboration with plans examiners, and keep construction moving without costly delays.
Ichi accelerates approvals by providing instant code guidance, clear remediation paths, and better documentation—helping AECs resolve issues faster, streamline collaboration with plans examiners, and keep construction moving without costly delays.
Ichi accelerates approvals by providing instant code guidance, clear remediation paths, and better documentation—helping AECs resolve issues faster, streamline collaboration with plans examiners, and keep construction moving without costly delays.
minutes to train a team
Complete onboarding and training in less than 1 hour, with no downtime or tech overhead.
responses copied or saved
Over 30% of responses are copied or saved directly into work documentation or permit packages.
Customers Stories
Customers Stories
Customers Stories
Learn how building officials, fire marshals, developers transformed their work with Ichi and why they are not going back.
Learn how building officials, fire marshals, developers transformed their work with Ichi and why they are not going back.
Start a free trial and get fully
onboarded within 30 days
Learn how Ichi uses AI to solve your organization’s biggest construction compliance challenges
Start a free trial and get fully
onboarded within 30 days
Trusted by jurisdictions, professional reviewers, and design teams across the U.S.
Trusted by jurisdictions, professional reviewers, and design teams across the U.S.
Building the Future 🌉
© Ichi Plan Inc, 2025
Building the Future 🌉
© Ichi Plan Inc, 2025