01
Start with the jurisdiction
We first identify the authority having jurisdiction (AHJ): city, county, township or another agency that controls the relevant permit or zoning question.
Permitrust methodology
How We Research Permit Requirements
Permit information is local. Permitrust treats a permit answer as a research question: identify the authority, find the governing rule, understand the scope, explain it in plain language, and show what the homeowner or contractor should verify next.
02
Prefer primary sources
The preferred evidence is the authority's own code, ordinance, permit page, application, fee schedule, official portal or published guidance. Secondary sources are used for context, not as a substitute for a governing local rule.
03
Separate permit from zoning
A building permit question is not automatically a zoning answer. Setbacks, lot coverage, height, overlays, easements and land-use restrictions can be controlled by a different department or rule.
04
Explain the rule, not just the result
A useful result says what the rule means, why it applies, what could change the answer, which documents may be needed, and what the user should do next.
05
Show uncertainty honestly
If an official source is unclear, unavailable, outdated or dependent on facts we do not have, the page should say so. We do not manufacture a definitive answer to fill a research gap.
06
Keep verification visible
Local rules can change. Where a page contains researched local requirements, the source and review context should be visible so users know when and where the information came from.
Source hierarchy
Primary
Municipal code, ordinance, permit portal, official application, fee schedule or department guidance.
Official secondary
Official FAQs, manuals, department explanations and published program documents.
Baseline
State or model-code information when a local source does not answer the question.
Context
Reputable secondary sources used to explain concepts, never to replace a controlling local rule.
What Permitrust does not claim
- A generic article can determine every property's permit requirements.
- A calculator can replace an official fee schedule or plan review.
- A permit result is legal advice or a guarantee that an application will be approved.
- Search visibility, AI answers or structured data are substitutes for accurate local research.
Corrections and source updates
If you find a changed municipal rule, broken official source or inaccurate statement, contact Permitrust with the jurisdiction, project and source. Local requirements should always be confirmed with the authority before construction.
Report a correctionMethodology reviewed September 25, 2026. This methodology describes how Permitrust approaches research; individual jurisdictions may require additional verification.