California Coverage · Marin County
Marin 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 Marin address, in about a minute.
What Lekua resolves in Marin County
Every layer below is pulled live from Marin’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, site address, lot area, and land use — drawn to the recorded line.
True 1-foot contour lines straight from MarinMap — finer than the USGS 10-ft data most tools fall back to. Essential on Marin’s hillside lots; spot elevations included.
County footprints co-registered to the satellite basemap so they sit on the roofs you see, gap-filled with national data for large structures.
Front / side / rear setback tables encoded from each of the 12 jurisdictions’ adopted municipal codes, cited on every export. Rings are drawn once a table passes independent review (Fairfax today); elsewhere the export carries the code-cited values with an explicit “unverified” advisory instead of unreviewed lines.
CAL FIRE FHSZ severity (2024–25 remap) with Zone 0 / 1 / 2 defensible-space perimeters drawn around structures.
Recorded easements, fault zones, geologic hazards, and coastal / riparian boundaries where mapped by the county.
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 by water district.
Built for Marin’s wildland-urban interface
Nearly all of Marin sits in a mapped fire-hazard severity zone, and defensible-space planting rules are now part of every residential project. Lekua draws the CAL FIRE Zone 0 / 1 / 2 perimeters on the plan and filters the plant palette to what each zone allows — so a fire-wise, code-aware design comes out of the first pass instead of a redline later.
- 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 data, UCANR / county fire-safe lists, and FIRESafe Marin zone guidance.
Zoning setbacks, by jurisdiction
Setbacks in Marinare set per town, not countywide. Lekua resolves the parcel’s jurisdiction and zone code and encodes each jurisdiction’s adopted setback table, citation and all. Setback rings are drawn only after a table passes independent panel review — until then the export carries the code-cited values with an explicit “unverified” advisory instead of lines we can’t stand behind.
Example — San Anselmo residential setback table, as encoded from the adopted code
| Zone | Front | Side | Rear |
|---|---|---|---|
| R-1-20 | — * | 10′ | 20′ |
| R-1-6 / R-1-8 | — * | 5′ | 15′ |
| R-2 | — * | 5′ | 15′ |
San Anselmo’s front setback is the prevailing block average — no fixed ring is drawn; the export says so rather than guessing. San Anselmo’s table is pending panel review, so exports currently carry these values as cited text with an advisory. Always verify against the current code before submittal.
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, UCANR / county fire-safe lists, and FIRESafe Marin guidance — 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: Marin Municipal Water District (MMWD) · North Marin Water District (NMWD).
Marin County base map FAQ
Can I get a CAD base map for a Marin County parcel?
Yes. Enter any Marin address and export a layered DXF (AutoCAD-compatible) with property lines, building footprints, 1-ft contours, spot elevations, easements, and the zoning determination with code-cited setbacks on AIA/NCS-style layers — plus a designed PDF site report for the client.
What contour interval is available in Marin County?
Marin publishes native 1-foot contours through MarinMap, which Lekua uses directly. That’s finer than the USGS 10-foot national data most parcels fall back to — which matters on Marin’s steep hillside lots for grading and drainage.
Does it include zoning setbacks for Marin towns?
Setback tables are encoded from the adopted municipal codes of 11 Marin towns plus unincorporated county land, each with a citation. Rings are drawn once a jurisdiction’s table passes independent panel review — Fairfax today, with the rest in review — and until then the export carries the code-cited values with an explicit “unverified” advisory. Where a setback is a prevailing-average or discretionary rule, the export says so instead of drawing a misleading line.
How does it handle defensible space and fire-safe planting?
Lekua draws CAL FIRE Zone 0 / 1 / 2 defensible-space perimeters around the structures and tags every recommended native with the zones it’s suited to — using flammability data from Las Pilitas, UCANR / county fire-safe lists, and FIRESafe Marin guidance.
Is the data current and reliable enough for submittals?
Layers are pulled live from county GIS and CAL FIRE at export time; setback tables are curated from each jurisdiction’s code with a dated source note. Everything is labeled “for planning reference — not for construction.” Verify against the current code and a stamped survey before submittal.
Start with a Marin address
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