Orinda — Signage

Last reviewed: July 2, 2026

Overview

Orinda regulates signs in Title 17, Chapter 17.18 (Signs). The Chapter sets objectives (safety, aesthetic quality, protecting the semi‑rural character) and a two‑tier permit system (Type 1 and Type 2) with fast administrative review for code‑compliant signs and discretionary review where compatibility or master plans are required. See the general purpose and permit procedures in § 17.18.1 and § 17.18.11 .

Note on related review topics: check your property’s base zoning and special rules in the City’s Orinda Zoning and Orinda Land Use materials, confirm development constraints in the Orinda Development Standards, and whether design review applies under the Orinda Design Review rules. If the sign work triggers construction standards, verify requirements under the California Building Standards Code. Also consider overlays in the Orinda Overlay Districts pages, and on commercial sites check Orinda Parking as sign location/visibility can interact with circulation.

Chapter 17.18 organizes rules three ways:

• Universal allowances and exemptions that apply in any zoning district (e.g., small flags, one‑day signs, window sign limits) — § 17.18.7 .
• Permit allowances for residential and open space districts — § 17.18.8 .
• Permit allowances for downtown office; downtown commercial; public, semi‑public and utility; and park and recreation districts — § 17.18.9 . Technical installation and prohibited sign lists are in § 17.18.12 and § 17.18.13 .

District-by-district guidance (practical synthesis)

The sign chapter frequently groups districts rather than creating unique sign rules for every base zone. Below are district groupings that the code uses and what an applicant must know in each.

Residential districts — RVL, RL, RM, RH (collectively “R” districts)

Purpose: preserve residential character; limit commercial visual clutter. See Title 17 references to R districts and residential base rules in Chapter 17.3 and map designators in Chapter 17.1 .

Typical permitted sign types (with a type 1 permit):

• On residential lots with three or more units: one permanent freestanding or wall sign, illuminated or not, max 10 sq ft.
• On lots with nonresidential buildings: one permanent freestanding sign, max 20 sq ft (illumination only if property fronts a principal or minor arterial).
• Subdivision entrance: one freestanding sign, max 20 sq ft (illumination same arterial restriction).
• Nonresidential building frontage: wall signage limited to 15 sq ft per individual sign and cumulative wall‑area limited to 0.5 sq ft per linear foot of ground‑floor building frontage. See § 17.18.8 .

Key dimensional/installation notes: temporary sign limits (faces, size, height) and illumination rules in § 17.18.12 apply; illumination in residential districts may not cast light or shadow onto adjacent properties or roads (§ 17.18.12.D and § 17.18.12.F) .

Where it applies: all R‑designated parcels citywide; confirm the exact R subdistrict on the zoning map and any overlay that may modify rules (verify with the Planning Director if boundary is unclear) — see § 17.1.7–17.1.10 .

Open Space — OS

Purpose: protect natural/open areas. Sign rules for OS parcels are folded into the residential/open space sign allowances; refer to § 17.18.8 for the types and size caps described above (residential group) . Where a planned development overlays OS or other districts, see § 17.18.10 for how PD signage must follow the "closest resembling" base district standards .

Downtown districts — DC, DCOR, DG, DO (downtown commercial / downtown office / downtown core / downtown general)

Purpose: accommodate retail/office signage while protecting the village character; downtown buildings and multi‑tenant coordination are emphasized. The Chapter treats downtown districts together in the downtown sign rules, including a master sign program requirement for multi‑tenant buildings in downtown areas — see § 17.18.9 .

Typical permitted sign rules:

• Master sign program required: before any new sign on a multi‑tenant building the owner must obtain a type 2 permit for a master sign program covering type, area, materials, lighting, colors and placement — § 17.18.9.A .
• For properties with setbacks of ≥ 25 ft from curb: one freestanding sign up to 20 sq ft and max height 6 ft (back‑to‑back faces limited to two) — § 17.18.9.B.1 .
• Wall sign allowance: 0.5 sq ft per linear foot of ground‑level building frontage for single‑frontage buildings; multiple frontages get 0.5 on the primary frontage and 0.25 sq ft per linear foot on additional frontages (rules prohibit combining frontages to exceed the maximum for one frontage) — § 17.18.9.B.2.a–b .
• Wall signs above first floor are counted at 1.5× their area when computing the total allowed sign area — § 17.18.9.B.2.c .
• Projecting signs: max 5 sq ft area, 3 ft height, 4 in thickness, minimum clearance 7 ft‑6 in above grade, max projection 3 ft‑6 in (unless under a canopy) and limited to one per 25 linear ft of ground floor frontage — § 17.18.9.B.3 .
• Oversized temporary signs up to 15 sq ft (per face) allowed by permit but limited to 30 consecutive days per calendar year and one per tenant; multi‑tenant properties: one oversized temporary per 25 ft of ground‑floor frontage — § 17.18.9.C .

Where it applies: downtown districts identified in Chapter 17.8 and on the zoning map; see the downtown commercial use restrictions at § 17.8.4–5 for context on where retail/Type I spaces are located (street segments, plazas) . If your sign is part of larger exterior work that requires design review, include the sign application with design review (see § 17.18.11.C.5) and the city’s Orinda Design Review procedures .

Public, Semi‑Public and Utility — PS

The Chapter handles signs in these districts alongside downtown and park rules. Many PS uses are public facilities; the same allowances and master‑sign coordination in § 17.18.9 apply. Check specific facility and easement constraints and whether the sign is exempt (public traffic control signs are exempt) — see § 17.18.5.B .

Park & Recreation — PR

Park and recreation district sign rules follow the downtown/public group in § 17.18.9; temporary park/event signage is accommodated but must follow temporary sign size and duration rules in § 17.18.12.D and § 17.18.9.C .

Planned Development — PD

A PD area’s approved development plan must indicate which base zoning district the PD most closely resembles; signs in a PD must follow the sign regulations for that base district as applied within the PD plan — § 17.18.10 .

Quick decision table — most decision‑relevant standards and references

Checklist

• Confirm the base zoning for the parcel (R district, DC, DO, PS, PR, OS, PD) and any overlay that applies — verify with the planning counter if map boundary is unclear (§ 17.1.7–17.1.10) .
• Decide if your sign is exempt or allowed without a permit per § 17.18.7 (flags, one‑day, small wall sign, window sign) .
• If permit required, determine whether Type 1 or Type 2 applies and include required materials per § 17.18.11 (master sign program for multi‑tenant downtown buildings triggers Type 2) .
• Calculate sign area exactly per § 17.18.17 (double‑sided/back‑to‑back rules; above‑first‑floor multiplier) .
• Check dimensional limits and clearances in § 17.18.12 (freestanding height, setback from pavement, projecting sign clearance) .
• Confirm illumination restrictions (residential cast/no spill, no moving/flashing signs) per § 17.18.12.F and § 17.18.13 .
• If the sign is part of exterior work subject to design review, file together with the design review application — see Orinda Design Review and § 17.18.11.C.5 .
• If uncertain about exceptions to sign size (proportionality to architecture) or need to exceed standards, consider an Exception per § 17.32.4.D or Variance per Chapter 17.33 — see Orinda Variances and Exceptions and § 17.32.4 .
• Verify any interaction with access, parking, sightlines, and circulation (see Orinda Parking and § 17.18.12 for pavement setback) .
• Be prepared for maintenance standards and nonconforming rules if altering an existing sign (§ 17.18.15–16) .

Risks & Ambiguities

Plain-English summary

Orinda’s sign rules live in Title 17 Chapter 17.18: small flags, one‑day signs and small wall signs are usually allowed without a permit; most other permanent and many temporary commercial and residential signs need a sign permit (Type 1 or Type 2). Downtown and multi‑tenant properties have extra controls (master sign programs, frontage‑based area limits); freestanding signs are limited in height and area, moving/flashing signs and freeway‑visible billboards are prohibited — consult the exact code sections before you order fabrication or install a post. See § 17.18.7–17.18.12 for the core rules and permit process .

Source References

• § 17.18.1 — Purpose of sign regulations (Title 17, Chapter 17.18)
• § 17.18.2 — Objectives for sign control (safety, aesthetics)
• § 17.18.3 — Key sign definitions (sign area, building frontage, arterial streets)
• § 17.18.4–5 — General provisions and exempt signs (public traffic signs, interior signs)
• § 17.18.6 — Signs allowed in the public right‑of‑way without permit
• § 17.18.7 — Signs allowed without a permit (flags, small wall sign, portable temporary, window signs)
• § 17.18.8 — Signs allowed by permit in residential and open space districts
• § 17.18.9 — Signs allowed by permit in downtown office; downtown commercial; public/semi‑public/utility; and park & recreation districts; master sign program rules
• § 17.18.10 — Planned development districts: PD signs follow the indicated base district
• § 17.18.11 — Permit application processes, Type 1 & Type 2, timelines and appeals
• § 17.18.12 — Sign installation and design criteria (freestanding height/setback, temporary sign dimensions, illumination limits)
• § 17.18.13 — Prohibited signs (moving/flashing, rooftop, visible from freeway, hazards)
• § 17.18.14 — Historical sign designation rules (≥25 years)
• § 17.18.15–17.18.17 — Maintenance, nonconforming signs, measurement of sign area and time calculations
• Cross references used: downtown use/space rules § 17.8.4–5 and design review standards § 17.30.5 (cited above for context)

Retrieved passages

• Orinda Zoning Code (§ 2) High relevance show source text
• Orinda Zoning Code (§ 2) High relevance show source text
• Orinda Zoning Code (Chapter is) High relevance show source text
• Orinda Zoning Code (§ 2) High relevance show source text
• Orinda Zoning Code (§ 2) High relevance show source text
• Orinda Zoning Code (§ 2) High relevance show source text
• Orinda Zoning Code (§ 2) High relevance show source text
• Orinda Zoning Code Medium relevance show source text
• Orinda Zoning Code High relevance show source text
• Orinda Zoning Code (§ 2) Medium relevance show source text
• Orinda Zoning Code (Title 17) Medium relevance show source text
• Orinda Zoning Code (Section 17.22.4.) Medium relevance show source text

Cited sections

• **§ 17.18.1** — Purpose of sign regulations (Title 17, Chapter 17.18) (§ 17.18.1)
• **§ 17.18.2** — Objectives for sign control (safety, aesthetics) (§ 17.18.2)
• **§ 17.18.3** — Key sign definitions (sign area, building frontage, arterial streets) (§ 17.18.3)
• **§ 17.18.4–5** — General provisions and exempt signs (public traffic signs, interior signs) fileciteturn0file3 (§ 17.18.4)
• **§ 17.18.6** — Signs allowed in the public right‑of‑way without permit (§ 17.18.6)
• **§ 17.18.7** — Signs allowed without a permit (flags, small wall sign, portable temporary, window signs) (§ 17.18.7)
• **§ 17.18.8** — Signs allowed by permit in residential and open space districts (§ 17.18.8)
• **§ 17.18.9** — Signs allowed by permit in downtown office; downtown commercial; public/semi‑public/utility; and park & recreation districts; master sign program rules (§ 17.18.9)
• **§ 17.18.10** — Planned development districts: PD signs follow the indicated base district (§ 17.18.10)
• **§ 17.18.11** — Permit application processes, Type 1 & Type 2, timelines and appeals (§ 17.18.11)
• **§ 17.18.12** — Sign installation and design criteria (freestanding height/setback, temporary sign dimensions, illumination limits) (§ 17.18.12)
• **§ 17.18.13** — Prohibited signs (moving/flashing, rooftop, visible from freeway, hazards) (§ 17.18.13)
• **§ 17.18.14** — Historical sign designation rules (≥25 years) (§ 17.18.14)
• **§ 17.18.15–17.18.17** — Maintenance, nonconforming signs, measurement of sign area and time calculations fileciteturn0file10 (§ 17.18.15)
• Cross references used: downtown use/space rules **§ 17.8.4–5** and design review standards **§ 17.30.5** (cited above for context) fileciteturn1file19 (§ 17.8.4)
• Orinda_ZoningCode.md

• Official Orinda code library