Molluso Holdings

The parcel data source.
Every property report, nationwide.

Hazard, tax, flood and environmental data resolved to the parcel, straight from the county and federal systems of record. Take it as an API, or as a finished report under your own brand.

Most report companies
buy their data from someone else.

The disclosure industry runs on a small number of wholesale data vendors, and most of the price on a property report is the cost of that file rather than the cost of producing the report. Everybody buys the same data, so nobody has an advantage.

We built the layer underneath instead. County secured rolls, CDIAC filings, state hazard layers and federal environmental databases, assembled parcel by parcel and reconciled against each other. That is unglamorous work, and it is the whole moat.

Two modes on every hazard

Centroid and polygon

A large or irregular parcel can sit with its centroid outside a zone while most of its footprint is inside. Both results come back on every call, because that disagreement is where defensibility lives.

Priced per parcel

Not per report

Repeat lookups on the same parcel inside the same month are free. In a business where a property gets pulled more than once per transaction, that changes the real cost more than the headline rate does.

Product architecture

One company, many report products.

Four report products, one engine underneath. Same parcel resolution, same sources, packaged for whoever is buying.

Your NHD Report

California natural hazard disclosure

The six statutory hazards under Civil Code 1103, the supplemental tax notice, and the full assessment picture. Delivered as a substituted disclosure or as raw data under your own brand.

Your Flood Report

Determination and certification

FEMA NFHL at the parcel polygon, not the centroid alone. Built for lenders who need a defensible determination on volume and a turnaround measured in seconds.

Your Parcel Report

Ownership, tax and assessment

Owner of record, assessed values, the full secured roll breakdown including Mello Roos, 1915 Act assessments and PACE liens, reconciled against the county source.

Your Risk Report

Environmental and proximity

Seven federal and state environmental databases, each queried at its own statutory search radius, plus the proximity layers a commercial buyer asks about.

NHDdata is the California NHD product line under the umbrella. Same team, same engine, same reports.

Straight from the system of record.

No resold aggregate file sitting between us and the source. Every layer traces to the agency that publishes it.

Hazards

  • FEMA National Flood Hazard Layer
  • CAL FIRE fire hazard severity zones
  • CGS Alquist Priolo fault zones
  • CGS seismic landslide and liquefaction
  • DWR and CalOES dam inundation
  • Wildland and state responsibility areas

Tax and assessment

  • County secured roll, direct from the auditor
  • CDIAC Yearly Fiscal Status Reports
  • Mello Roos CFD special taxes
  • 1915 Act bond assessments
  • PACE liens
  • Prop 13 base and voter approved bonds

Environmental

  • EPA Toxic Release Inventory
  • EPA Superfund National Priorities List
  • EPA RCRA tracked handlers
  • DTSC EnviroStor cleanup sites
  • SWRCB GeoTracker LUST and SLIC
  • CalRecycle solid waste facilities

Statutory hazard layers are statewide in California. Parcel level Mello Roos coverage is deepest where county ingestion is complete and expands continuously. We will show you the real coverage map for your footprint rather than claim blanket coverage.

For platforms and lenders

Take the data,
keep your brand.

A metered REST API with bearer key auth, per customer pricing, prepaid credits, idempotency keys, request tracing and webhook delivery. Or a white labelled report that goes out under your name with your logo on the cover.

If you already produce property reports, this is the layer underneath them. Your customer never knows we exist.

Request access

Endpoints

  • /v1/parcelhazards + tax, bundled
  • /v1/hazardsstatutory determinations
  • /v1/taxsecured roll breakdown
  • /v1/environmentalseven databases

Priced per parcel per month, with repeat lookups on the same parcel free inside the month. Volume pricing on request.

Tell us what you need
at the parcel level.

Send a county and a handful of APNs. We will run them and send back what comes out, next to whatever you use today.

scott@parceldatasource.com