Riverside County, California
Hemet is a city in Riverside County, California. Hemet adopts its own zoning, so inside its limits Hemet’s rules apply, not the county’s. 18 rules below are quoted from official sources and independently re-checked, most recently on November 12, 2026. Rules for unincorporated land are on the Riverside County page.
Construction of any building or structure in Hemet single-family residential zones
“Prior to the construction of any building or structure a building permit shall be required in accordance with the latest city-adopted uniform building code.”
Construction inside Hemet city
“a building permit shall be required in accordance with the latest city adopted California Building Code.”
Land inside Hemet city limits
“New development projects in the single family residential zones are subject to pre-application review as provided in section 90-49 and site development review as provided in section 90-48 of this chapter.”
Zoning districts inside Hemet city
“a-zones minimum development standards zone a-1 a-2 a-2-10”
Single-family zones R-R, R-1-40 through R-1-5 inside Hemet city
minimum livable area: >= 1200 sq ft
“9. minimum livable area (square feet) 1,200 1,200 1,200 1,200 1,200 1,200 1,200”
Agricultural zones A-1, A-2, A-2-10 inside Hemet city
minimum lot area A-1/A-2/A-2-10: 1/5/10 acres
“2. minimum lot area 1 acre 5 acres 10 acres”
“1. minimum net lot area (square feet) 20,000 40,000 20,000 10,000 7,200 6,000 5,000”
Agricultural zones A-1, A-2, A-2-10 inside Hemet city
front yard: >= 20 ft · rear yard: >= 10 ft · side yard: >= 10 ft
“5. front yard setback 20 20 20 6. rear yard setback 10 10 10 7. side yard setback 10 10 10”
“5. minimum rear yard setback (linear ft.) including detached garages 20 20 20 20 15 10 10”
Single-family zones inside Hemet city (order R-R through R-1-5), one-story maximum
max lot coverage one story: 40/40/40/40/45/50/50 percent
“7. maximum lot coverage (percent) a. one story 40 40 40 40 45 50 50 b. two stories 35 35 35 40 40 45 45”
“8. lot coverage none none none 9. building and structure height 40 40 40”
Single-family zones R-R through R-1-5 inside Hemet city
maximum structure height: <= 35 ft
“8. maximum structure height (linear ft.) 35 35 35 35 35 35 35 maximum stories 2 2 2 2 2 2 2”
“9. building and structure height 40 40 40”
RV living on private property inside Hemet city
max days per month: <= 3 days
“inside of a licensed and registered vehicle in a residential off-street driveway with written consent of the business owner or the owner of the residence”
Camping on private property inside Hemet city
max days per month: <= 3 days
“camping in the yard of a residence with the consent of the owner or occupant of the residence, where the camping is in the rear yard, or in an area of a side yard that is separated from view from the street by a fence, hedge or screen. in no case shall camping under this provision be permitted for more than three days during any one calendar month;”
Manufactured homes on single-family zoned lots inside Hemet city
max age at permit application: <= 10 years (pier-to-permanent-foundation conversions)
“no manufactured home shall be installed on a lot zoned for single-family dwellings if more than ten years has elapsed between the date of manufacture of the manufactured home and the date of the application for the permit to install the manufactured home in the subject zone. this exclusion shall not apply to legally permitted manufactured homes converting from a pier foundation system to a permanent foundation system.”
ADUs and JADUs on residentially zoned lots inside Hemet city
“shall be permitted ministerially without discretionary review or public hearing if it meets the definitions and criteria listed in”
Non-dwelling accessory structures in single-family zones inside Hemet city
permit threshold: > 120 sq ft
“an accessory structure greater than 120 square feet is required to obtain a building permit.”
We looked and could not find an official answer yet. Silence is not permission; ask Hemet or Riverside 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 Hemet publishes no rule on the point, not that none exists. Riverside County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Hemet means bringing your own water and power. The kit we’d start with:
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