California Coverage · Contra Costa County
Contra Costa County base maps & site data for designers
The existing-conditions base map and pre-design site analysis that normally takes a half-day of GIS hunting and a site visit — for any Contra Costa address, from Orinda to Walnut Creek, in about a minute.
What Lekua resolves in Contra Costa County
Every layer below is pulled live from Contra Costa’s own GIS and authoritative state sources the moment you enter an address — no manual tracing, no generic insets, every source cited.
Parcel boundary with APN and lot area from the statewide CA parcel layer (hosted, verified queryable) — the county publishes no cloud-reachable parcel service, and the export says so.
Fine 1–2 ft contours generated on-demand from the 1-meter USGS 3DEP elevation model — far finer than the 10-ft national data most tools show.
FEMA national structure footprints — the county publishes no cloud-reachable footprint layer, so the export says exactly what the source is.
Jurisdiction resolution live for El Cerrito, Richmond, and unincorporated Contra Costa County: the export identifies the jurisdiction and returns an honest null — no guessed setback lines — while table capture is queued.
CAL FIRE FHSZ severity (2024–25 remap) with Zone 0 / 1 / 2 defensible-space perimeters drawn around structures — pointed where it counts: the Diablo foothills and the Orinda–Lafayette–Moraga corridor.
USDA SSURGO soil profile, historical rainfall, and modeled seasonal sun-hour heat maps for the parcel.
California natives matched to the site’s soil and microclimate, plus lawn-replacement rebate estimates from the serving provider — Contra Costa Water District and local programs.
Tuned for Contra Costa’s fire interface
The Diablo foothills and the Orinda–Lafayette–Moraga corridor sits in mapped fire-hazard severity zones, and defensible-space planting rules now shape those projects. Lekua draws the CAL FIRE Zone 0 / 1 / 2 perimeters on the plan and filters the plant palette to what each zone allows — fire-wise from the first pass.
- Zone 0 (0–5 ft ember-resistant), Zone 1 (5–30 ft), and Zone 2 (30–100 ft) perimeters drawn around the structures.
- Every recommended plant carries a defensible-space zone rating, so you place the right species in the right zone.
- Flammability ratings draw on Las Pilitas burn-time research and UCANR / CAL FIRE-aligned fire-safe lists.
A native palette, enriched beyond the plant list
Start from the Calscape native plant database — then get the research-backed traits Calscape alone doesn’t put at your fingertips, matched to the parcel’s exact soil, sun, rainfall, and microclimate. Hand a client a list that’s code-compliant, climate-appropriate, and built to perform.
Flammability and defensible-space zone suitability from Las Pilitas burn-time research and UCANR / CAL FIRE-aligned fire-safe lists — not just a name on a list.
Slow / moderate / fast growth plus mature height and spread, so spacing and time-to-fill are realistic from day one.
Calscape cultivation and longevity guidance, so the palette reads for how it performs over 10–20 years, not just at install.
WUCOLS-aligned water-use ratings (for the MWELO budget) and pollinator / bird support scores on every species.
Plant data: Calscape / CNPS, enriched with Las Pilitas burn-time research, UCANR & CAL FIRE-aligned fire-safe lists, and WUCOLS water-use ratings.
Water districts & rebates
Lawn-replacement rebate estimates are matched to the serving district: Contra Costa Water District · EBMUD (west county).
Contra Costa County base map FAQ
Can I get a CAD base map for a Contra Costa County parcel?
Yes. Enter any Contra Costa address and export a layered DXF (AutoCAD-compatible) with parcel lines, building footprints, on-demand 1–2 ft contours, and spot elevations — plus a designed PDF site report for the client.
What contour interval is available in Contra Costa County?
Lekua generates fine 1–2 ft contours on-demand from the 1-meter USGS 3DEP elevation model — far finer than the 10-ft national fallback most tools show, which matters wherever grading and drainage drive the design.
Does it include zoning setbacks for Contra Costa County?
Jurisdiction resolution is live for El Cerrito, Richmond, and unincorporated Contra Costa County — the export identifies the jurisdiction and returns an honest null rather than guessed lines while setback-table capture is in the queue. Where a setback isn’t verified, the export says so plainly.
How does it handle defensible space and fire-safe planting?
Lekua checks the parcel against current CAL FIRE FHSZ maps, draws Zone 0 / 1 / 2 defensible-space perimeters around the structures where designated, and tags every recommended native with the zones it’s suited to.
Is the data current and reliable enough for submittals?
Layers are pulled live from county GIS, USGS, and CAL FIRE at export time, and any encoded setback table cites its source with a date. Everything is labeled “for planning reference — not for construction.” Verify against the current code and a stamped survey before submittal.
Start with a Contra Costa address
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