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Santa Barbara County · Official layer catalog

The Site Constraints Explorer.

Wildfire hazard, coastal zone, topography and permit records each live in a different official system. This explorer catalogs those layers — owner, vintage, accuracy and caveats — and links you to the authoritative viewer for each. It never reads a parcel, and it never turns a map into a determination.

Educational layer catalog, not a parcel determination. Every zone status, boundary and permit fact is established by the official source linked beside it — this page organizes the research; it never replaces it.

Layer links reviewed 2026-10-24 · no geocoding, no lookups, nothing stored

The catalog

Six official layers, four categories.

Toggle the layers you are researching — 6 of 6 selected. The selection exports as a small settings file you can share or archive; it contains layer names only, never a location.

LegendLink verified: the official link was reachable on 2026-10-24 — it does not mean the underlying data is current.Pending review: not re-verified; treat as a research question, not a fact.

Wildfire hazard

  1. Layer owner
    CAL FIRE, Office of the State Fire Marshal
    Published by
    California Open Data portal (data.ca.gov)
    Vintage
    Zone maps are adopted in cycles; the viewer shows the current adopted set
    Status
    Link verified. Viewer link verified reachable on the review date; zone adoption status is confirmed in the viewer itself.
    Geometry accuracy
    Zone polygons are planning-scale boundaries. A parcel near a zone edge needs the official viewer's parcel-level read, not a visual estimate from a thumbnail.
    Known caveats
    A mapped zone is a long-term planning classification, not a prediction that fire will reach a specific address, and not an insurance determination.
    CAL FIRE FHSZ viewerOfficial external resource
  2. Layer owner
    County of Santa Barbara
    Published by
    Ready Santa Barbara County (county preparedness portal)
    Vintage
    County pages carry their own update dates; check the page itself
    Status
    Link verified. Portal link verified reachable on the review date.
    Geometry accuracy
    County preparedness and land-use pages describe programs and point to code; they are not parcel-scale determinations.
    Known caveats
    County resources apply to the unincorporated county — Montecito and Hope Ranch. They do not describe City of Santa Barbara requirements.
    Ready Santa Barbara CountyOfficial external resource

Coastal zone

  1. Layer owner
    California Coastal Commission
    Published by
    California Coastal Commission maps portal
    Vintage
    LCP boundaries change only through formal amendments; the portal lists current certified documents
    Status
    Link verified. Maps portal link verified reachable on the review date.
    Geometry accuracy
    Coastal zone boundaries are legal boundaries adopted in certified Local Coastal Programs. The map is the reference; the certified LCP document is the authority.
    Known caveats
    Coastal zone status drives a separate permit track. A parcel's status is confirmed against the certified LCP, not inferred from proximity to the shoreline.
    Coastal Commission LCP mapsOfficial external resource

Topography & slope

  1. Layer owner
    County of Santa Barbara Public Works, Surveyor's Office
    Published by
    County surveyor information system
    Vintage
    Recorded maps carry their own recordation dates
    Status
    Link verified. Surveyor system link verified reachable on the review date.
    Geometry accuracy
    Recorded parcel and survey maps are legal-record documents. On-screen GIS contours elsewhere are screening aids; design-grade topography comes only from a commissioned survey.
    Known caveats
    A tax parcel line is not a confirmed legal building site, and a GIS contour is not a grading plan. Slope-driven rules are confirmed with the authority having jurisdiction.
    County parcel & survey mapOfficial external resource

Civic permit record

  1. Layer owner
    City of Santa Barbara
    Published by
    City of Santa Barbara (santabarbaraca.gov) and the City's Accela portal
    Vintage
    Permit records are transactional; each record carries its own filing and status dates
    Status
    Link verified. City portal link verified reachable on the review date.
    Geometry accuracy
    Permit records show what was filed and finaled for a parcel — not what is approvable now. City GIS layers are maintained by the City for City parcels only.
    Known caveats
    The City's portal and GIS cover City of Santa Barbara parcels. They say nothing about Montecito or Hope Ranch, which are unincorporated county territory.
    City of Santa Barbara permit portalOfficial external resource
  2. Layer owner
    County of Santa Barbara
    Published by
    County Accela portal (SBCO)
    Vintage
    Permit records are transactional; each record carries its own filing and status dates
    Status
    Link verified. County portal link verified reachable on the review date.
    Geometry accuracy
    The SBCO portal is the permit record for unincorporated parcels — Montecito and Hope Ranch. Records show history, not future approvability.
    Known caveats
    SBCO is Santa Barbara County — not to be confused with San Bernardino County (SBC). The City of Santa Barbara runs a separate Accela portal that does not apply here.
    Santa Barbara County Accela portal (SBCO)Official external resource

Derived guidance — not official data

What the layers mean for a project.

Everything above this line is an official source record. Everything in this section is RSA's qualitative planning guidance — how the layers tend to shape a residential scope. It is advisory, and it never overrides the official source.

When fire mapping shapes the design conversation

If the official FHSZ viewer places a parcel in a mapped zone, the construction standards conversation starts early: envelope assemblies, vent selection, eave details and defensible-space coordination all interact with architecture. The mapped classification is confirmed through the official viewer first — the design response follows the classification, never the reverse.

When coastal status changes the permit track

A parcel inside the coastal zone follows the certified Local Coastal Program's permit path, which can differ from the standard track in scope, review and timeline. Coastal status is a threshold question answered against the certified LCP maps before any scope is priced or scheduled.

When slope becomes a structural question

Screening-level contours hint at slope; a commissioned topographic survey establishes it. Where slope is real, foundation strategy, retaining work, drainage and access all become engineering questions — and the earlier the survey, the fewer redesigns.

When the permit record rewrites the scope

Prior permits, finaled inspections and open records define what a new scope must reconcile. An unpermitted structure, an expired approval or an open violation discovered in the record is a scope fact, not a surprise to budget around later.

Bring to the counter

Questions and checkpoints.

  • Which official viewer governs each question for this parcel — and is the parcel in the City or the unincorporated County?
  • What does the FHSZ viewer show for the parcel today, and when was that classification adopted?
  • Is the parcel inside the coastal zone under the certified LCP, and which permit track does that trigger?
  • What does the permit record show for prior work, and does any of it constrain the new scope?
  • Which questions need a commissioned survey or written confirmation rather than a map reading?

Decision checkpoints, in order

  1. 1.Jurisdiction confirmed — City or County — before any layer is read as applicable.
  2. 2.Fire classification read from the official FHSZ viewer, with a dated screenshot filed.
  3. 3.Coastal status checked against the certified LCP maps, not inferred from distance to the water.
  4. 4.Permit record pulled from the correct portal — City ACA or County SBCO ACA, never mixed.
  5. 5.Design-grade topography commissioned where slope is material to the scope.

Honest limits

What this explorer does not do.

  • This explorer does not determine any parcel's zone status — only the official viewers and certified documents do.
  • It does not show current fire behavior, active incidents or evacuation information.
  • It does not provide geocoding, parcel lookup or address search — no location is entered, transmitted or stored here.
  • It does not interpret insurance, and a mapped zone is not a premium quote.

Who to involve, and when

  • Architect or designer — when hazard classification or coastal status shapes the design response.
  • Civil or geotechnical engineer — when slope, drainage or retaining work is material.
  • Licensed surveyor — when boundaries or design-grade topography must be established.
  • General contractor — to sequence the verification work into one accountable preconstruction scope.

Parcel Research Studio

The nine-document worksheet behind every layer read.

Wildfire Resilience

Montecito's hardening and rebuilding resource.

Permit Navigator

Confirm the jurisdiction before reading any layer.