Local zoning · Yorba Linda

Yorba Linda — Design Review

Q: What drawings do I have to submit for design/architectural review?

At minimum the City asks for a scaled site plan , landscape plan , architectural elevations (materials/colors), sign plans , and grading/drainage where applicable — the full list is in § 18.36.120 and the Planning Commission may require additional information to make findings (§ 18.36.120 ) .

Q: How long does Design Review approval remain valid?

Design Review approvals lapse after one year if no building permit is issued and construction has not begun; the Community Development Director can grant a one‑year extension if requested in writing before expiration (§ 18.36.130 ) .

Q: Can the Zoning Administrator approve minor design changes or adjustments?

Yes — a number of small deviations (e.g., up to 10% changes in certain setbacks or up to 10% height increases) can be handled as administrative adjustments by the Zoning Administrator per § 18.38.070 ; the Administrator may also refer items to the Planning Commission when warranted (§ 18.38.070 ; § 18.38.080 ) .

Q: If my property is in a historic overlay, how does that change design review?

If a property is in the (H) Historic combining zone, the overlay’s compatibility standards apply in addition to the underlying zone; the Historic combining zone gives the City the authority to require compatibility findings and design treatments under § 18.18.100–.130 (§ 18.18.110 explains overlay applicability) .

Design Review under the Yorba Linda local zoning and planning code, with the controlling citations.

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Last reviewed: July 3, 2026

Overview

Design review in Yorba Linda is a Planning Commission / administrative process that evaluates the exterior design, site layout, landscaping, lighting, signs, and visual compatibility of new development and substantial alterations. The City's design goals and required application materials are in Title 18 (Zoning) of the Yorba Linda Municipal Code; detailed design guidelines live in Chapter 18.26 and the procedural rules and submittal requirements live in Chapter 18.36. For applicants, design review sits alongside technical standards for parking, setbacks, and landscape (see Yorba Linda parking and development standards), and it can be combined with Conditional Use, Planned Development, or administrative adjustments depending on the project (§ 18.26.010; § 18.36.120) .

How the code defines the role of design review

The Planning Commission’s design-review role is expressly to prevent the “unsightly, the inharmonious, the monotonous and the hazardous” while allowing architectural originality; the Commission reviews exterior design, materials, textures, colors and illumination (§ 18.36. — duties and standards) .
The general design guidelines and standards that the Commission applies are in Chapter 18.26 (Design Standards) which are intended to apply citywide and supplement district-specific rules (§ 18.26.010; § 18.26.020) .

District-by-district breakdown (where design review commonly applies)

Below are the actual Yorba Linda districts and the code citations you must consult for parcel-specific requirements. Each district subsection gives the ordinance purpose, typical permitted uses (high-level), key dimensional rules, and where design review shows up in the code.

Residential zones (R‑A, RLD, R‑E, R‑S, R‑U, R‑M, R‑M‑20, R‑M‑30)

Purpose: permit densities from estate to higher‑density multi‑family; regulate lot size, setbacks, separation and scale to preserve neighborhood character (§ 18.10.090, Table 18.10‑2) .
Typical uses: single‑family homes, multi‑family where allowed, accessory uses and supportive/transitional housing as regulated in the matrix (§ 18.04 definitions and Table references) .
Key dimensional standards (examples from Table 18.10‑2): minimum lot sizes vary by zone (e.g., R‑A: 1 acre, R‑U: 7,500 sq ft), maximum densities and minimum lot widths/depths provided in Table 18.10‑2 (§ 18.10.090) .
Where design review applies: additions or multi‑unit projects that require Planning Commission review must submit design materials (site, elevations, landscaping) per § 18.36.120; hillside lots (slope ≥15%) are explicitly subject to design review (§ 18.30.030) .

Commercial zones (C‑O, C‑N, C‑G)

Purpose: provide office, neighborhood, and general commercial land uses with design controls to protect adjacent residential areas (§ 18.12, Table 18.12‑2) .
Typical uses: offices, retail and service uses; some outdoor uses are conditional and require Commission review (§ 18.12.070).
Key standards (Table 18.12‑2): front setbacks commonly 25 ft, max building height typically 35 ft (varies by subzone), lot coverage limits (e.g., C‑N: 35%) (§ 18.12., Table 18.12‑2) .
Where design review applies: commercial projects are evaluated under Chapter 18.26 design standards and many commercial permits are reviewed by the Planning Commission through Design Review (§ 18.26.050; § 18.36.120) .

Planned Development (PD) and Special Purpose zones (including MHP, PS, PL)

Purpose: provide project‑level standards and a development plan adopted by ordinance; PD projects must comply substantially with an approved development plan and are often approved together with design review (§ 18.16.150, § 18.16.160) .
Typical uses: project‑specific mixes (residential, commercial, institutional). The PL (Presidential Library) is an actual special zone with specific permitted uses listed in Table 18.16‑4 (§ 18.16.010; § 18.16.320) .
Key dimensional standards: PDs adopt their own standards in the development plan; PL example standards include 50 ft street setback, 35 ft maximum height, 35% maximum coverage (§ 18.16.320) .
Where design review applies: PDs and special purpose zones frequently make design review a condition of approval; the Planning Commission applies design guidelines when adopting PD development plans (§ 18.16.170; § 18.36.120) .

Overlay and combining zones — (H) Historic, (SH) Special Housing, (TC) Town Center, Mixed‑Use Overlay

Purpose: overlays add standards on top of underlying zones to protect historic resources, encourage special housing types, implement town center objectives, or control oil production, etc. The overlays are listed in § 18.18.010 and the Historic combining zone is defined in § 18.18.100–.130 .
Typical uses and controls: the (H) overlay requires compatibility with historic character and may make exterior changes and new construction subject to stricter design review standards (§ 18.18.100; § 18.18.110) .
Where design review applies: overlay requirements supersede or supplement the underlying district and explicitly make design compatibility a controlling factor in approvals (§ 18.18.110) .

Most decision‑relevant standards at a glance

Project type / standard	Typical control or number (bolded)	Code reference
Residential max height (citywide base)	35 ft maximum (general limit)	§ 18.01.050
Hillside development triggers design review	Slope ≥15% or movement of ≥500 cu yd (or 5,000 cu yd any slope)	§ 18.30.020; § 18.26.120
Required submittals for Planning Commission review	Site plan, landscape plan, architectural elevations, signs, grading	§ 18.36.120
ADU size/design exception via Design Review	ADU up to 1,200 sq ft on lots ≥15,000 sq ft may be approved by Planning Commission through Design Review	§ (ADU rules) (design review allowance)
Commercial front setback (C‑N)	25 ft typical	Table 18.12‑2 / § 18.12.

How applications are reviewed and processed

Submittal contents: applicants for projects that require Commission review must provide a scaled site plan showing structures, driveways, parking, landscape, fences, and traffic flow; a landscape plan with plant types and sizes; architectural drawings/elevations showing materials and colors; sign drawings; grading/drainage plans; and any other data the Commission requires (§ 18.36.120) .
Decision authority and alternatives: many smaller deviations can be processed as administrative adjustments by the Zoning Administrator (e.g., modest setback percentage changes) per § 18.38.070; the Zoning Administrator may refer items to the Planning Commission when warranted (§ 18.38.080) .
Time limits: design review approvals lapse after one year if a building permit is not issued and construction not commenced; the Community Development Director may grant a one‑year extension on written request (§ 18.36.130) .
Public notice: projects identified within the Housing Element’s inventory get a courtesy notice to property owners within 300 feet as part of design review (§ 18.36.140) .

Design criteria the Commission emphasizes (practical synthesis)

Unified site plan and integrated architectural theme; consistency of materials and color (avoid cosmetic ornament as substitute for design quality) (§ 18.26.050) .
Screen mechanical, service, trash and utility areas architecturally and by landscape; lighting must be shielded to avoid glare onto streets and neighbors (§ 18.26.050(B); § 18.26.080) .
Parking lots must incorporate landscape islands and shade trees (minimum landscape per parking stall) and parking counts are controlled in Chapter 18.22; in some mixed‑use situations the Planning Commission can reduce required nonresidential parking through Design Review with a parking study (§ 18.22; § 18.17.340) .
Landscape plans must follow the City’s Guidelines and be prepared by a licensed professional where required; final landscape plans may be administratively reviewed but may be pulled to the Planning Commission if they deviate from prior approvals (§ 18.28.040) .

Checklist (what an applicant must satisfy for Planning‑level Design Review)

Provide a scaled site plan showing all structures, parking, circulation and access points (§ 18.36.120) .
Submit a landscape plan (species, sizes, irrigation) consistent with Chapter 18.28 and Yorba Linda landscape guidelines; licensed preparer for final plans where required (§ 18.28.040) .
Provide architectural elevations showing materials, textures, colors, roof forms and exterior lighting (§ 18.36.120; § 18.26.050) .
Include sign drawings with sizes, materials and illumination (if any) (§ 18.36.120; Chapter 18.24) .
Provide grading & drainage plans (especially if slopes exceed thresholds in § 18.26.120) .
Perform any required parking study when seeking parking reductions; show compliance with Chapter 18.22 or request reductions through Design Review (§ 18.17.340; Chapter 18.22) .
Address overlay rules (for example (H) historic) where applicable — compatibility findings may be required (§ 18.18.110) .
Pay application fees and post any required notices; expect a lapse period of one year if permits/building permit not obtained (§ 18.36.130) .

Risks & Ambiguities

Issue	Why it matters	What to verify
Administrative adjustment vs. Planning Commission	Many small deviations can be handled administratively but larger or controversial changes go to Planning Commission; this affects time, hearing and noticing requirements	Confirm whether proposed change fits the adjustments listed in § 18.38.070 or must be referred under § 18.38.080
Overlay precedence (Historic, SH, TC)	Overlay standards can be more restrictive and control design outcomes even if underlying zone appears permissive	Check whether property is subject to an overlay (see § 18.18.010 and 18.18.110) and apply overlay design rules first
Hillside grading thresholds	Projects in hillside areas often require Planning Commission grading review even if other approvals would otherwise be administrative	Confirm slope, cut/fill volumes—§ 18.26.120 and § 18.30.030 list triggers for Commission review
ADU design exceptions	ADUs may be eligible for size exceptions via Design Review, but the code also imposes state ADU law constraints	Use local ADU rules (design review allowance in local ADU section) and verify consistency with California ADU law and local § references (§ ADU provisions)
Parking reductions via Design Review	Reductions are possible but require a parking study and Commission findings; misuse can lead to appeal	If seeking reduced nonresidential parking, support with a traffic/parking study and reference § 18.17.340 and Chapter 18.22

Plain‑English summary

If you’re changing the outside of a building or building something new in Yorba Linda that requires Planning Commission approval (including many commercial, hillside, PD and overlay projects), you will go through Design Review: prepare scaled site/landscape/architectural drawings showing materials and colors, meet the City’s design standards, and expect the Planning Commission to evaluate compatibility, screening, and neighborhood impacts. The specific submittal lists and triggers are in Chapter 18.36 and the design standards the Commission uses are in Chapter 18.26 (§ 18.36.120; § 18.26.010) .

Source References

Chapter 18.26 (Design Standards / purpose and applicability; guidelines) — § 18.26.010; § 18.26.020 .
Design Review submittal requirements and lapse/notice rules — § 18.36.120; § 18.36.130; § 18.36.140 .
Design considerations (articulation, screening, lighting) — § 18.26.050; § 18.26.080; § 18.26.090 .
Hillside Development and design review trigger — § 18.30.030; § 18.26.120 (grading triggers) .
Zoning Administrator procedures and administrative adjustments — § 18.38.070; § 18.38.080 .
Residential development standards (Table 18.10‑2) — § 18.10.090 (residential standards table) .
Commercial development standards (Table 18.12‑2) — § 18.12.070 and Table 18.12‑2 .
Special Purpose / Presidential Library zone (examples of PD special standards) — § 18.16.010; § 18.16.320 (Table 18.16‑5) .
ADU design/size allowances referencing Design Review — ADU provisions (design review allowance for certain ADU sizes) .
Title of the zoning code (Title 18) and code context — § 18.02.010 (Title) and Title 18 editorial notes .
Yorba Linda landscape plan procedures and standards — § 18.28.040; § 18.28.050 .

Sources

Retrieved passages

Yorba Linda Zoning Code (§ 3) High relevance
Yorba Linda Zoning Code (§ 18.18.090.) Medium relevance
Yorba Linda Zoning Code (§ 3) Medium relevance
Yorba Linda Zoning Code (§ 3) Medium relevance
Yorba Linda Zoning Code (Chapter 18.26.) Medium relevance
Yorba Linda Zoning Code Medium relevance
Yorba Linda Zoning Code (§ 3) Medium relevance
Yorba Linda Zoning Code (§ 3) Medium relevance
Yorba Linda Zoning Code Medium relevance
Yorba Linda Zoning Code (§ 3) Medium relevance
Yorba Linda Zoning Code (§ 18.28.090.) Medium relevance
Yorba Linda Zoning Code (§ 18.17.330.) Medium relevance
Yorba Linda Zoning Code (Chapter 18.20.730.B) Medium relevance
Yorba Linda Zoning Code (Section 18.10.120.B.) Medium relevance
Yorba Linda Zoning Code (§ 3) Medium relevance

Cited sections

Official Yorba Linda code library

Frequently asked questions

Do I need design review in Yorba Linda?

If your project requires Planning Commission action (new subdivisions, multi‑family, many commercial projects, PDs, or projects in some overlays) or if the property is hillside (slope ≥15%), you will typically need design review; the code requires submittal of site, landscape and architectural drawings for Commission review (§ 18.36.120; § 18.30.030) .

What drawings do I have to submit for design/architectural review?

At minimum the City asks for a scaled site plan, landscape plan, architectural elevations (materials/colors), sign plans, and grading/drainage where applicable — the full list is in § 18.36.120 and the Planning Commission may require additional information to make findings (§ 18.36.120) .

How long does Design Review approval remain valid?

Design Review approvals lapse after one year if no building permit is issued and construction has not begun; the Community Development Director can grant a one‑year extension if requested in writing before expiration (§ 18.36.130) .

Can the Zoning Administrator approve minor design changes or adjustments?

Yes — a number of small deviations (e.g., up to 10% changes in certain setbacks or up to 10% height increases) can be handled as administrative adjustments by the Zoning Administrator per § 18.38.070; the Administrator may also refer items to the Planning Commission when warranted (§ 18.38.070; § 18.38.080) .

Will an Accessory Dwelling Unit (ADU) always need design review?

Not always. The Code allows some ADU size or design exceptions to be approved through Design Review (for example a Planning Commission may approve ADUs larger than base limits up to 1,200 sq ft on larger lots), but smaller ADUs or ADUs meeting objective standards may be processed administratively; check the ADU section and local thresholds and confirm consistency with state ADU law (§ ADU provisions) .

How strict are the landscape and parking rules when I submit for design review?

Landscape rules require a plan prepared per the City’s Guidelines; parking must meet Chapter 18.22 standards but the Planning Commission may reduce nonresidential parking up to 35% through Design Review if supported by a parking study (§ 18.28.040; § 18.17.340; Chapter 18.22) .

If my property is in a historic overlay, how does that change design review?

If a property is in the (H) Historic combining zone, the overlay’s compatibility standards apply in addition to the underlying zone; the Historic combining zone gives the City the authority to require compatibility findings and design treatments under § 18.18.100–.130 (§ 18.18.110 explains overlay applicability) .

Where can I find the City’s objective design standards and examples the Commission uses?

The objective design standards and guidelines are collected in Chapter 18.26 (Design Standards) — review § 18.26.050 for building articulation, screening, lighting and material guidance and the rest of Chapter 18.26 for related standards (§ 18.26.010; § 18.26.050) .

Can design review decisions be appealed?

Yes. Decisions of the Zoning Administrator and Planning Commission on land use permits, including design review actions when taken administratively, have appeal routes described in Chapter 18.36 and the Zoning Administrator rules (§ 18.38.080 discusses referral/appeal procedures) — verify the specific appeal timing and filing requirements in the applicable Article of Chapter 18.36 (§ 18.38.080) .

Does Title 24 (California Building Standards Code) affect Design Review?

The City’s design review focuses on aesthetics, site planning and compatibility; building code (Title 24) requirements are separate and enforced through building plan check. Design Review submittal lists ask for the architectural plans the Building Division will also review, but structural and life‑safety compliance is confirmed under the California Building Standards Code (local building permit process) — design review does not replace Title 24 compliance (Not found in retrieved materials: a single cross‑reference to plan check process; verify with the jurisdiction) .

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