Data sources and licenses
The public records and map data behind RDC_REALTOR: where each comes from, what it is used for, and the terms it carries.
Utilities (an owner-occupant's estimate)
| Source | Used for | Terms |
|---|---|---|
| Miami-Dade Water and Sewer Department; Broward County Water and Wastewater Services | Water and sewer rate schedules; each county's table of daily gallons by type of home; the map of water service areas | Public record; an estimate at an assumed consumption, never an address's bill |
| Florida Power & Light | Residential rate (RS-1) and its clauses | Published tariff insert; the PSC-approved tariff prevails |
| Florida Department of Revenue | Municipal public service tax rates by city | Public data, shown as each city reported it |
| U.S. Energy Information Administration, Residential Energy Consumption Survey 2020 | Electricity use of Florida homes by type and living area | Public domain (federal) |
| Fla. Admin. Code R. 62-6.008; Water Research Foundation, Residential End Uses of Water (2016) | The high and low of the water range | State rule; published study, cited |
County and state records
| Source | Used for | Terms |
|---|---|---|
| Miami-Dade County Property Appraiser | Owner, folio, assessment, building, sales | Public record (F.S. ch. 119) |
| Broward County Property Appraiser | Owner, folio, assessment, building, sales | Public record (F.S. ch. 119) |
| Miami-Dade and Broward County Property Appraisers — millage charts | The 2026 adopted millage rates by city behind the property tax estimate | Public record (F.S. ch. 119) |
| The Florida Legislature (flsenate.gov): CS/HJR 1-F (Amendment 3) and CS/SB 4-F (Ch. 2026-240) | The homestead exemption, the assessment caps and the millage ceiling in the reference library and the property tax estimate | Public record (Florida law) |
| Miami-Dade Clerk of the Court | Recorded liens, violations, lis pendens | Public record; metered county service |
| County tax collectors (county-taxes.net) | Tax bills and payments | Public record |
| Miami-Dade, Broward and Palm Beach County GIS | Zoning, parcels, flood, planning areas, address points, road centerlines, parks | Public data, provided as is — Miami-Dade: not suitable for site-specific decision making |
| Miami-Dade building recertification and hearing portals; Broward County Commission agenda | Recertification cases, zoning hearings | Public record |
| Florida Department of Revenue (statewide parcels) | Broward addresses the county layer lacks | Public data |
| FDOT, FLDOE, FNAI, FDEP; Miami-Dade and Broward school boards | Traffic counts and planned road work, school grades, conservation lands, trails, school boundaries | Public data |
Federal
| Source | Used for | Terms |
|---|---|---|
| FEMA | Flood zones and flood levels, the NFIP community list | Public domain |
| U.S. Census Bureau | Geocoding, ACS figures (directly or through Census Reporter), ZIP areas, the Map tab's layers (ACS 5-year figures by tract and block group, TIGERweb boundaries) | Public domain |
| BLS, FRED, Freddie Mac, FFIEC | Inflation (CPI), the weekly mortgage rate and its term spread | Public data; Freddie Mac's survey with credit |
| HUD, NCES, USGS, FHFA | Opportunity Zones, Qualified Census Tracts and Difficult Development Areas (the Map tab's outlines), schools, ground elevation, house price index (also, with the BLS CPI, each county's default price growth: 1975–2025 after inflation, plus 2.5 %) | Public domain |
Maps
| Source | Used for | Terms |
|---|---|---|
| OpenStreetMap | Places near a home, road names, the coastline, geocoding fallback (Nominatim), map tiles | © OpenStreetMap contributors — Open Database License (ODbL 1.0) |
| Protomaps | Our own map tiles (OpenStreetMap data) | ODbL Produced Work; software BSD-3 |
| Esri (ArcGIS Location Platform) | The printed report's street map; a backup map layer | Powered by Esri, under the app's key; credit shown under each map |
Listings
| Source | Used for | Terms |
|---|---|---|
| Bridge Data Output (MLS) | Listing search for licensed users | Property of the MLS and its licensors; licensed users only; not redistributed |
OpenStreetMap data kept by the app
© OpenStreetMap contributors. The data is available under the Open Database License (ODbL 1.0). Each copy below is the OpenStreetMap data cut to South Florida and filtered by kind, nothing added; the equivalent data is the Geofabrik Florida extract.
| Copy | Source | Data as of | How it was made |
|---|---|---|---|
| Places near a home (on-ramps, stations, parks, shopping, hospitals, attractions, beaches) | Geofabrik florida-latest.osm.pbf (download.geofabrik.de/north-america/us/florida.html) | 2026-10-07 | pyosmium: tag filter highway=motorway_junction, railway=station, railway=halt, leisure=park, shop=mall, shop=supermarket, shop=department_store, amenity=hospital, tourism=attraction, tourism=museum, tourism=zoo, tourism=theme_park, tourism=aquarium, natural=beach; named except junctions / stations; one point per object (node location, or the bounding-box center of a way / multipolygon); inside bbox; tags kept: name, ref, exit_to, destination, network, operator and the kind (scripts/osm/build_places.py) |
| Atlantic coastline (distance to the shore) | OpenStreetMap natural=coastline | 2026-09-29 | easternmost land per 100 m band (UTM 17N), gaps closed with a 20 km circle, simplified 10 m |
| Road names for lot analysis (the nearest road's name where the county centerlines lack the address's street; no OpenStreetMap geometry is mixed with the county's) | Geofabrik Florida extract | — | scripts/osm/build_roads.py: named highway ways in the South Florida box |
| Map tiles | Protomaps daily basemap build (OpenStreetMap data) | — | pmtiles extract <build> --bbox=-81.10,25.00,-79.85,27.10 — unchanged otherwise |
Address index
Map clicks and address lookups read the counties' own address points (Miami-Dade, Broward with the Florida Department of Revenue's parcels, Palm Beach) — county data only, no OpenStreetMap data.