About ADUVerify

Built for California homeowners who want answers before spending thousands.

ADUVerify is a product of ADU Intelligence Systems, operated by Kerylos Holdings LLC — a property technology company focused on making residential development intelligence accessible to individual homeowners.

Why it was built

ADUVerify was created after six months of researching a single question: can this property support an ADU? The answer required cross-referencing FEMA flood maps, CAL FIRE databases, the county assessor website, the city planning portal, and three different rental listing platforms — none of which talked to each other. At the end of that research, the answer was still preliminary. ADUVerify automates that entire process and delivers a structured preliminary assessment in minutes, so homeowners can make informed decisions before the expensive ones.

What we are

A preliminary automated feasibility tool. Not a licensed planning consultant, not a zoning attorney, not a permit expediter. Our reports are designed to give you the information you need to have a confident, informed conversation with the professionals who do those things.

What we are not

ADUVerify reports are not zoning determinations, building permits, legal opinions, or financial guarantees. Every report includes a confidence score and explicit flags for what requires local verification. We believe transparency about limitations builds more trust than hiding them.

Where we work

AVAILABLE NOW

California

Full coverage — FEMA flood zone, CAL FIRE fire hazard, Maximum Unit Potential, California ADU law (SB 9, AB 68, AB 2221, AB 976), and city-specific zoning for Los Angeles, San Diego, Oakland, San Jose, and Orange County.

COMING SOON

ADUVerify is building a nationwide property feasibility platform. California is the first market because it has the most mature ADU legislation and the most complete public data ecosystem. Future expansion will focus on states where zoning transparency, environmental datasets, rental market coverage, and permitting frameworks support report accuracy at ADUVerify standards. We will not launch a state until the report quality matches California.

  • Oregon — HB 2001 (2019) allows ADUs statewide on single-family lots
  • Washington — HB 1337 (2023) requires cities to allow ADUs by right
  • Colorado — HB 24-1152 (2024) enables ADUs in all metro areas
  • Texas — No statewide ADU law but major metros (Austin, Houston, Dallas) permit ADUs — city-level coverage planned
  • Florida — Growing ADU adoption in Miami-Dade, Orange County, and Hillsborough

State expansion is tied to public data API availability for environmental screening, rental market coverage, and local zoning data. We will not launch a state until the report quality meets California standards.

Contact

Questions before ordering: support@aduverify.com
Report an issue: aduverify.com/feedback

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