Junior ADUs in Citrus Heights

Short answer

Citrus Heights' local option allows one ADU and one junior ADU on a single-family lot. A junior ADU may be no more than 500 sq ft inside the home, and the City requires owner occupancy when it shares the home's sanitation facilities.

Last verified 2026-10-18. Rules change; the City of Citrus Heights Planning Division has the final word (916-727-4740).

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The rules

ParkingLocal rule: None added, and no replacement for a converted garageCitrus Heights Municipal Code 106.42.015(E)(7)
Junior ADU sizeState law: No more than 500 sq ft of interior livable space, contained within a single-family residenceGov. Code 66313(d)
Junior ADUs on a single-family lotState law: One junior ADU per qualifying single-family residential lotGov. Code 66333(a)
Where a junior ADU can goState law: Within the single-family residence; an enclosed attached garage counts as part of itGov. Code 66333(d)
Junior ADU entranceState law: A separate entrance from the main home entrance; a shared-bathroom unit also needs interior entry to the main living areaGov. Code 66333(e)
Junior ADU owner occupancy under state lawState law: Required when sanitation is shared with the house; not required when the junior ADU has separate sanitation facilitiesGov. Code 66333(b)
Junior ADU kitchenState law: An efficiency kitchen with cooking appliances, a preparation counter and storage cabinetsGov. Code 66333(f)
Junior ADU rental termState law: Longer than 30 daysGov. Code 66333(g)
City local-option unit countLocal rule: One ADU and one junior ADU on a single-family lotCitrus Heights Municipal Code 106.42.015(B)(1)(a)
City owner-occupancy ruleLocal rule: If sanitation is shared, the owner must occupy the primary home or junior ADUCitrus Heights Municipal Code 106.42.015(D)(2)
City junior ADU rental termLocal rule: No rentals of 30 consecutive days or lessCitrus Heights Municipal Code 106.42.015(E)(11)

What to know in Citrus Heights

Shared sanitation changes the occupancy rule

Under Citrus Heights Municipal Code 106.42.015(D)(2), an owner must live in the primary home or the junior ADU when the two share sanitation facilities. Gov. Code 66333(b) says owner occupancy is not required when the junior ADU has separate sanitation facilities.

Citrus Heights Municipal Code 106.42.015(D)(2); Gov. Code 66333(b)

The 2026 ordinance effective date remains open

The City's Zoning Code Update 2026 page still lists the amendments' effective date as 'TBD'. Confirm the current local text with the Planning Division before relying on a junior ADU plan.

City of Citrus Heights, Zoning Code Update 2026

Estimated cost and rent

Garage conversions and junior ADUs aren't in this table for Citrus Heights: the check can't verify them there yet, so a report lists them as not verified.

What we couldn't confirm

Whether the proposed rooms meet building, separate-entrance and kitchen requirements has not been confirmed for this home.
The effective date of the City's 2026 ADU ordinance has not been verified.

Ask the City of Citrus Heights Planning Division before you rely on these.

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Our free check reads your lot against the Citrus Heights rules above from public records: a screening, not a permit or professional advice.

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Floor plans to start from

Measured ADU layouts you can edit and download as CAD files, then check against the Citrus Heights rules above.

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Citrus Heights junior ADU questions

Must a Citrus Heights junior ADU owner live on site?

Only if the junior ADU shares sanitation facilities with the primary dwelling. Citrus Heights Municipal Code 106.42.015(D)(2) requires the owner to occupy one of the two spaces then; Gov. Code 66333(b) removes the requirement when the junior ADU has separate sanitation facilities.

Can a junior ADU use an attached garage?

Yes. Gov. Code 66333(d) counts an enclosed attached garage as part of the single-family residence where a junior ADU can be placed. Gov. Code 66313(d) still limits the junior ADU to 500 sq ft of interior livable space.

Can I rent a Citrus Heights junior ADU for a short stay?

No. Citrus Heights Municipal Code 106.42.015(E)(11) bars renting a junior ADU for 30 consecutive days or less, and Gov. Code 66333(g) requires a rental term longer than 30 days.

Is this a permit, or a plan I can build from?

Neither. It is a screening from public records, not professional advice, and not a survey, soils report, appraisal, loan offer or permit; every number is an estimate. A licensed designer confirms the final plan, and your city or county gives final approval.