Marin County · Zoning setbacks
Unincorporated Marin County setback requirements
Lekua resolves a parcel’s jurisdiction and zone, then draws this envelope on the site plan with its citation in the title block. Enter a Unincorporated Marin County address and the setbacks arrive already drawn.
The envelope
What the numbers below make on the ground. Unincorporated Marin County sets one bracket across RA, RR, RE, R1 and R2, so this is the whole rule rather than one district of several.
Zone R1 — the envelope Lekua draws on the plan.
- Front
- 25′
- Side
- 6′
- Rear
- 25′
The hatched band is the yard — ground the code gives up. Drawn not to scale: the yards are proportional to each other, so the deepest one fills the band and the rest follow. The dimensions carry the real numbers, and the export draws them on the actual parcel outline.
Unincorporated Marin County setbacks by district
Every row is produced by the same function the exporter calls, so this page cannot drift from what the drawing gets. The citation under each row is what prints on the sheet.
Corner lots: 10′ on the secondary street frontage.
Marin County Development Code §22.10.040 Table 2-5: front 25 ft; sides 6 ft (10 ft on street side); rear 25 ft (the 25 ft cap — lot depth unavailable, so the 20%-of-depth branch could not be computed; a lot under 125 ft deep requires LESS). -B combining districts and Ch. 22.20 exceptions may modify. Verify with Marin County CDA.
What the export says about this table
Unincorporated Marin reviewed 2026-07-24 against Marin County Development Code Table 2-5 (Ord. 3819/2024): RA, RR, RE, R1 and R2 share front 25, sides 6 (10 street side), rear 20% of depth to a 25 ft maximum. -B combining districts change minimum lot area, not setbacks. RSP/RMP master-plan, RF, RX, agricultural and Coastal Title 20 LCP districts are not drawn.
Printed verbatim on every Unincorporated Marin County export — the same words the reviewer signed off, not a summary of them.
Setbacks are one layer of the Unincorporated Marin County site plan
The same address search returns the parcel boundary, 1–2 ft contours, building footprints, CAL FIRE defensible-space zones, the soil profile, four-season sun, and a native plant palette matched to the site. See everything Lekua resolves in Marin County→
Unincorporated Marin County setback FAQ
What are the residential setbacks in Unincorporated Marin County?
In R1 the code sets a 25 ft front yard, 6 ft sides, and a 25 ft rear yard. The full table is below, transcribed from Marin County Development Code §22.10.040 Table 2-5 with the citation attached to every row. This table has passed independent review, so Lekua draws the setback envelope on the site plan for a Unincorporated Marin County parcel.
Does Lekua draw the setback envelope for Unincorporated Marin County?
Yes. Unincorporated Marin County is one of the jurisdictions whose table has passed review, most recently on 2026-07-24, so the envelope is drawn on the DXF and the PDF site plan with its citation in the title block.
Where do these Unincorporated Marin County setback numbers come from?
They are transcribed from the adopted code — Marin County Development Code §22.10.040 Table 2-5 — and this page renders them by calling the same function the exporter calls, so what you see here is what the drawing gets. Zoning changes; verify against the current code and with the planning department before submittal.
Can I get a CAD base map for a Unincorporated Marin County parcel?
Yes. Enter any Unincorporated Marin County address and Lekua returns a layered DXF base plan and a PDF site report — property lines, 1–2 ft contours, building footprints, CAL FIRE defensible-space zones, soil, seasonal sun, and a native plant palette matched to the parcel, alongside the zoning determination. See what else resolves in Marin County.
Start with a Unincorporated Marin County address
Free to search. The zone resolves from the parcel, not from the mailing address.