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Building Code Changes by Jurisdiction Across the U.S.

National Code Data at Scale

Building codes are constantly evolving across thousands of governing authorities. OneClick Code tracks jurisdiction-level changes nationwide, helping contractors, adjusters, and carriers stay aligned with the latest roofing, window, and siding requirements.

Roofs • Windows • Siding • Municipality-verified
• Contractor, Adjuster, Insurance Carrier workflows

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Jurisdictions covered

32,000+

Governing authorities mapped and maintained nationwide.
Estimated code changes

+41,000

In just 24 months. Building codes are not static, and neither is our database.

What we cover

Roofs, Windows & Siding

Including local adoption details and amendments.

Built on Real Relationships with the People Who Enforce Codes

OneClick Code maintains accuracy through direct, ongoing communication with local municipalities and governing authorities. We verify adopted codes, document local amendments, and confirm enforcement details so professionals are not relying on ZIP codes, assumptions, and outdated sources.

It's simple. Our direct relationships with local governing authorities save hundreds of phone calls every single day.

From a Municipality? We would love to partner with you.
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Less Administrative Burden for Municipal Staff

By proactively confirming adoption and amendment details, we reduce repetitive code inquiries and limit unnecessary back and forth over phone calls and email for everyone involved.

Clear Governing Jurisdiction for Field Professionals

Adjusters and contractors no longer waste time searching for the correct authority or verifying conflicting sources. They start with verified jurisdiction data from OneClick Code.

Faster, More Defensible Carrier Decisions

With confirmed adoption and amendment records, carriers gain accuracy across claims and stronger support for code-based determinations.

Built on 50,000+ Municipal Interactions

In just the last year, we have had 50,000 conversations with local governing authorities nationwide to maintain the single-source-of-truth code requirements database you can trust. Every day, every job, every file.

The Gold Standard for Building Code Data

OneClick Code is built on direct municipal validation, disciplined jurisdiction mapping, and continuous monitoring of adoption and amendment changes. Our platform is designed to reflect how codes are actually enforced, not how they appear in internet searches and AI results that are often false and inaccurate.
  • Property-address-specific requirements that are based on how codes are actually enforced – jurisdiction boundary lines, not zip code.
  • Continuous monitoring of adoption and amendment changes across 32,000+ governing authorities nationwide.
  • Local municipality validation that confirms what is adopted, amended, and enforced directly from the source.
  • Traceable adoption records that support accurate, defensible decisions across workflows.
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Understanding State and Local Building Codes

41,500+ Code Changes across Munis

Exterior building codes are constantly evolving across the country. In the past 24 months alone, we've tracked over 41,500 code changes across municipalities, states, and national jurisdictions.

Use the map below to toggle between code changes and jurisdiction type. Data is updated monthly.

 

View map by:

We're rolling out city-level pages over time — more states are on the way.

Frequently Asked Questions

Why are building codes organized by jurisdiction instead of ZIP code?

Building codes are adopted and enforced by governing authorities, also known as jurisdictions or AHJs. ZIP codes and mailing city names often cross multiple enforcement boundaries. Accurate code application requires mapping to the correct governing authority, not a postal designation.

How often do building codes change?

Building codes evolve constantly. Jurisdictions adopt new model codes, implement local amendments, and clarify enforcement requirements throughout the year. In the last 24 months alone, we have tracked over 41,000 code changes nationwide, reflecting how dynamic local code adoption truly is.

What types of codes does OneClick Code cover?

We focus on roofing, windows, and siding requirements, including adopted model codes and local amendments. Our database reflects jurisdiction-level adoption details so professionals can apply the correct requirements with confidence.

How does OneClick Code verify accuracy?

Accuracy is maintained through direct communication with municipalities and governing authorities. We confirm adoption details, document amendments, and maintain updated records based on verified jurisdiction information rather than assumptions or generalized databases.

Why does jurisdiction accuracy matter for claims and scopes?

Incorrect code assumptions can impact materials, scope requirements, compliance, and payment outcomes. Jurisdiction-level accuracy ensures decisions are aligned with the authority that actually enforces the code.

How do building code changes impact estimating and insurance claims?

Code upgrades are a major driver of cost. Using outdated requirements can cause adjusters to reject line items or force expensive tear-offs after inspections. OneClick Code gives contractors and estimators defensible reports that align with the current code requirements in that jurisdiction, protecting profitability and ensuring compliance.

Ready for Jurisdiction-Level Accuracy?

Start your free trial and stop the code chase, today.

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