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Tustin, CA Sign Regulations: Digital Billboards (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Approval required
CUP plus development agreement
Max height
55 ft above freeway pavement
Max face size
1,500 sq ft, 25 ft by 60 ft
Residential setback
300 ft minimum from residential parcel
Governing section
Tustin City Code § 9404b(7)

Summary

In the City of Tustin, a freeway adjacent digital display billboard needs a conditional use permit and a development agreement, and can only replace an existing legally non-conforming billboard on the same parcel within 400 feet of I-5 or SR-55. Size, height and distance from homes are all capped by ordinance.

7.Freeway adjacent digital display billboards. All freeway adjacent digital display billboards shall require a conditional use permit granted in accordance with section 9291 and a development agreement issued in accordance with chapter 6 of the Tustin City Code. ... may only be approved in instances where the freeway adjacent digital display billboard will replace on the same parcel, alter, or modify the structure, display and/or content of a legally non-conforming off-premises sign or a freeway-oriented electronic changeable copy sign erected on or before November 14, 2019 ... 1.Location. Freeway adjacent digital display billboards may only be erected on commercially zoned parcels located within four hundred (400) feet of either the Interstate 5 freeway or the SR 55 freeway right-of-way. ... 3.Height. ... The maximum height of any freeway adjacent digital display billboard shall not exceed fifty-five (55) feet above the pavement level of the Interstate 5 freeway or SR 55 freeway to the bottom of the digital display.4.Size. The maximum size of each freeway adjacent digital display billboard face display area shall be twenty-five (25) feet in height and sixty (60) feet in width, with the area of each face not to exceed an overall maximum amount of fifteen-hundred 1,500 square feet, including border and trim.

Full Breakdown

Tustin City Code Section 9404b(7) allows freeway adjacent digital display billboards only where a City Council-approved development agreement and Planning Commission conditional use permit replace, alter or modify an existing legally non-conforming off-premises sign or freeway-oriented electronic changeable copy sign erected on or before November 14, 2019. The billboard may only go on commercially zoned parcels within four hundred feet of the Interstate 5 or SR-55 right-of-way, and it cannot sit closer than three hundred feet to any residentially zoned parcel's property line, measured from the display face or structure base.

Height is capped at fifty-five feet above the freeway pavement to the bottom of the display, and each face is limited to twenty-five feet by sixty feet, with a maximum area of fifteen hundred square feet including border and trim. The display cycle rule requires each still image to hold for at least eight seconds with no more than one second of transition or blank screen, and prohibits motion, flashing, scintillating or traveling lights. The City Council must find the development agreement confers a substantial public benefit, such as removal of additional nonconforming billboards or financial contributions to the City, and must also find no traffic hazard, no nuisance to adjacent property and no undue increase in visual clutter before approval.

Violations & Fines

A digital billboard erected, modified or operated outside the conditional use permit and development agreement approved under Section 9404b(7), including one exceeding the size, height, setback or display-cycle limits, is an unauthorized sign subject to removal, nuisance abatement under Section 9405, and the City's criminal and civil enforcement tools including infraction or misdemeanor citation under Section 1121.

Frequently Asked Questions

Can any freeway sign in Tustin be converted to a digital billboard?
No. Section 9404b(7) only allows a freeway adjacent digital display billboard where it replaces, alters or modifies an existing legally non-conforming off-premises sign or freeway-oriented electronic changeable copy sign that was erected on or before November 14, 2019, on the same parcel.
How close to houses can a digital billboard be in Tustin?
No closer than three hundred feet from the property line of any residentially zoned parcel, measured from the digital display face or the base of the structure, per Tustin City Code Section 9404b(7)(2).
How fast can images change on a Tustin digital billboard?
Each still image must display for at least eight seconds, with no more than one second of transition or blank screen between images, and the images cannot move, flash or scintillate under Section 9404b(7)(8).

Sources & Official References

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