San Bernardino County, California
Highland is a city in San Bernardino County, California. Highland adopts its own zoning, so inside its limits Highland’s rules apply, not the county’s. 5 rules below are quoted from official sources and independently re-checked, most recently on October 22, 2026. Rules for unincorporated land are on the San Bernardino County page.
New buildings, additions, residential work, renovations, reroofing, electrical, solar, plumbing and HVAC work inside Highland city limits
“a permit is required for most construction or repair activities regulated by code. however, the california building code contains a list of projects that are exempt from permits.”
Building construction inside Highland city limits
“the highland municipal code incorporates the california building standards code with certain modifications related to specific climatic, geographic, or topographic conditions.”
Land inside Highland city limits (city of Highland, CA, San Bernardino County)
“title 16 of the highland municipal code establishes the allowable land uses, indicates standards for structures and improvements that are permitted within the various zones, and establishes procedures for the granting of permits and entitlements.”
New structures inside Highland city limits where public sewer is available
“septic systems: all structures are required to be connected to sewer, where available, subject to east valley water district review.”
Highland does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
New, replacement, and expanded onsite wastewater treatment systems (OWTS) on land inside Highland city limits
“all new, replacement, and expansion onsite waste treatment systems (owts) must obtain approval by the santa ana regional water quality control board, for compliance with the states owts policy prior to submitting for a building permit.”
We looked and could not find an official answer yet. Silence is not permission; ask Highland or San Bernardino County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Highland publishes no rule on the point, not that none exists. San Bernardino County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Highland means bringing your own water and power. The kit we’d start with:
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