Local zoning · Santa Rosa
Santa Rosa — Design Review
Design Review under the Santa Rosa local zoning and planning code, with the controlling citations.
Last reviewed: July 2, 2026
Overview
Santa Rosa's local zoning code (Title 20) establishes a discretionary Design Review process that evaluates the architecture, site plan, and neighborhood fit of new development and significant changes to existing buildings; the code's Design Review rules live in § 20-52.030 and related chapters. The process is used alongside technical development rules (setbacks and other development standards) and specialty overlay rules (for example the -H historic overlay and the -SA Station Area combining district) to shape final project approval. Design review interacts with technical chapters such as parking, landscaping and screening, and State building rules (the California Building Standards Code) during project permitting; see the code for exact triggers and review authority.
Notes on links: the first appearance of each related topic above is hyperlinked to the corresponding GoCodebook city menu page: design review is linked to the Santa Rosa Zoning page, setbacks/development standards to Development Standards, parking to the Parking page, overlays to Overlay Districts, historic matters to Historic Preservation, ADUs to the ADU page, and California Building Standards Code to the Title 24 page.
What the code requires (summary)
- The formal Design Review chapter is § 20-52.030; it defines the types of review (Major, Minor, Streamlined), application requirements, required findings, public notice/hearing rules, and time limits for approvals. Approval requires the review authority to make the written findings listed in § 20-52.030 (design quality, compatibility, neighbor impacts, CEQA compliance, etc.).
- Applications must be filed in compliance with the City's filing rules (see Chapter 20-50, Permit Application Filing and Processing) and must include the materials identified on the Department's Design Review handout.
- The City uses multiple review authorities depending on the type of Design Review (Design Review and Preservation Board, Zoning Administrator, Director, Planning Commission, or City Council). Table of appeal/review authority lists Design Review at § 20-52.030 and Table 6-1 clarifies who decides and who hears appeals.
- Objective residential design standards that can enable streamlined/ministerial review are collected in Chapter 20-39 (Objective Design Standards for By-Right Housing). Projects that qualify for that pathway must meet those objective tests instead of full subjective Design Guidelines.
- Time limits: a Design Review approval cannot be issued for more than 24 months without commencement of construction; applicants may request an extension (see the time limit rules in § 20-52.030.J).
District-by-district summary (how Design Review applies across common districts)
Below are district-specific notes focused on how Design Review and the zoning tables interact. For each district, the controlling zoning district authority is established under § 20-20.020 (Zoning Map and Zoning Districts); dimensional standards are measured per Division 3 (Setbacks, Height) (see § 20-30.070 and § 20-30.110). The descriptive text below synthesizes the Title 20 district tables and the Design Review references in the code (see cited sections and tables).
CO (Office Commercial)
- Purpose: CO supports office/service uses intended to be compatible with nearby residential areas. (District descriptions are established under § 20-20.020.)
- Typical permitted uses: professional offices, small clinics, personal service uses (use tables in Division 2 govern exact permits). Verify via the land-use tables in Division 2.
- Key dimensional standards (decision-relevant): typical maximum height 35 ft (see height rules § 20-30.070 and the district development tables), lot coverage and setbacks per the district table. Design Review may require larger setbacks in some cases (see table notes).
CN (Neighborhood Commercial)
- Purpose: CN for small-scale retail and services serving nearby residential areas.
- Typical permitted uses: small retail, personal services, professional offices; some uses require Conditional or Minor Conditional Use Permits per the use tables.
- Key standards: maximum height 45 ft in CN where shown in district tables; building façades and ground-floor design guidelines may be applied through Design Review. See § 20-30.070 and the district tables.
CG (General Commercial)
- Purpose: CG supports larger commercial/retail uses and auto‑oriented activity centers.
- Typical permitted uses: larger retail, services, lodging, some light commercial-industrial uses where allowed.
- Key standards: maximum height 55 ft per the district development table; design standards for façades and transparency (e.g., ground floor transparency percentages) may apply in special areas and through Design Review. See § 20-30.070 and the City's Design Guidelines.
Mixed-Use Districts (CV, CMU, SMU, MMU, NMU, CSC)
- Purpose: these mixed-use districts promote combinations of residential and commercial uses; district tables and density rules are in Division 2; mixed-use projects are often subject to Design Review to ensure compatibility and pedestrian orientation.
- Typical permitted uses: vertically or horizontally integrated residential + commercial; community shopping center (CSC) has special residential-density and mixed-use requirements.
- Key standards: lot coverage and maximum heights are set in the district tables (see Table 2-8 and related notes) and measured using § 20-30.070 (height measurement). Design Review can require additional articulation, active ground-floor uses, and transparency.
BP (Business Park)
- Purpose: BP supports planned business park development intended to be visually attractive and non‑noxious. Development proposals in BP are subject to Design Review for site plan and façade quality.
OSR / OSC / PI (Open Space / Public / Institutional)
- Purpose: OSR, OSC, PI districts manage open space, conservation, and institutional uses. Development standards (setbacks, lot sizes) are typically set by CUP or district table and are subject to Design Review where new buildings or major changes are proposed. See Table 2-13 for OS/PI guidance and § 20-30.110 for setback measurement.
PD (Planned Development)
- Purpose: PD is an overlay/district allowing a Policy Statement and Development Plan that govern site‑specific standards (height, setbacks, mix of uses). In establishing a PD, the Commission and Council evaluate design per the City's Design Guidelines; the DRPB reviews the Policy Statement and Development Plan before Commission hearings. See the PD provisions and review flow in Title 20.
-SA (North Santa Rosa Station Area combining district)
- Purpose: the -SA combining district implements the North Santa Rosa Station Area Specific Plan with walkable, pedestrian‑oriented development. Key Design Review expectations in -SA include minimum two‑story requirement, ground‑floor active uses, and ground‑floor transparency and pedestrian features; those specific requirements appear in the -SA subsection of the code and are enforced through Design Review. See the -SA combining district language and requirements.
-H (Historic overlay)
- Purpose: the -H combining district and Chapter 20-58 control historic resource review and may channel projects to the DRPB for specialized review (landmark alteration permits, etc.). Projects within -H have special processing rules (see Chapter 20-58 and the DRPB chapter) and may be exempted from certain dimensional conformity for historic structures via Landmark Alteration Permits.
Quick decision-relevant table
| Decision item | Typical rule / trigger | Code reference |
|---|---|---|
| Who decides Design Review (major/minor/streamlined) | DRPB, Zoning Administrator, Director or Commission depending on type; appeals per Table 6-1 | Table 6-1; § 20-52.030 |
| Required written findings to approve | Design quality, neighborhood compatibility, no material injury to vicinity, CEQA compliance (7 findings) | § 20-52.030 |
| Objective/streamlined residential path | Projects that meet Chapter 20-39 objective standards may qualify for streamlined/ministerial processing | § 20-39.010 – § 20-39.030 |
| Height limits (example: CO / CN / CG) | District tables show CO = 35 ft, CN = 45 ft, CG = 55 ft (see district tables; height measured per rules) | Table 2-8; § 20-30.070 |
| Setback measurement & allowed projections | Setback measurements and allowed projections into setbacks are in Division 3; allowed projections listed in Table 3-2 | § 20-30.110; Table 3-2 |
| Hillside & slope-sensitive projects | Hillside Development standards and permits required for slopes ≥10% and special rules for slopes >25% | § 20-32.010 – § 20-32.060 |
Checklist (applicant must satisfy)
- Prepare full Design Review application package per the Department handout and Chapter 20-50 filing rules (permit form, plans, materials list) — see § 20-50.
- Demonstrate how the project meets the Design Review findings in § 20-52.030 (design quality, compatibility, neighbor impacts, materials/colors, CEQA review).
- Confirm which review authority applies (DRPB, Zoning Administrator, Director) and prepare for the corresponding noticing/hearing per Table 6-1 and § 20-66 public hearing rules.
- Ensure dimensional compliance or show how PD/landmark/variance processes will be used; measure heights and setbacks per § 20-30.070 and § 20-30.110.
- If proposing residential for streamlined review, show compliance with Chapter 20-39 objective standards.
- Address related chapters: parking (Chapter 20-36), landscaping (Chapter 20-34), signage (Chapter 20-38), and any -H or -SA overlay rules that apply.
Risks & Ambiguities
| Issue | Why it matters | What to verify |
|---|---|---|
| When is Streamlined/Objective review allowed? | If you assume subjective Design Guidelines don't apply you may lose DRPB input — only projects meeting Chapter 20-39 objective standards are eligible. | Confirm eligibility under § 20-39.010 – § 20-39.030; verify with the Department pre-application. |
| Historic resources / -H overlay | Historic status can change applicable standards and require Landmark Alteration Permit rather than standard Design Review. | Check Chapter 20-58 and DRPB processing rules; verify if the property is in -H. |
| Hillside slopes trigger additional permits | Sloped lots (≥10%) require Hillside Development Permit and additional site analysis; failure to account adds delay. | See § 20-32.010 – § 20-32.060 for Hillside Development Permit triggers and limits. |
| District-specific standards vs. Design Review conditions | District tables set numeric limits, but Design Review can require larger setbacks, façade treatments, or different land uses. | Use district tables (Division 2) together with § 20-52.030 findings; verify any deviation via PD/CUP/Variance per § 20-52.060. |
| CEQA obligations | Design Review approval requires the review authority to find the project has been reviewed under CEQA. Missing CEQA clearance halts approval. | Confirm environmental review path; the Design Review findings require CEQA compliance in § 20-52.030.I.7. |
Plain-English Summary
If you propose new construction or significant exterior changes in Santa Rosa, you will usually need Design Review under § 20-52.030; the city’s review checks that your building’s design, siting, materials, and impacts fit the neighborhood and applicable district rules (height, setbacks, parking, overlays). Expect the DRPB or another city official to require specific design treatments, and prepare for public notice/hearing steps and the written findings the city must make before approving your project.
Source References
- Santa Rosa Zoning Code (Title 20) — Design Review: § 20-52.030 (Design Review—findings, application, public notice, time limits).
- Table 6-1 — Review and Appeal Authority (shows who hears Design Review appeals and which body acts): Table 6-1 / § 20-52.030.
- Permit application filing / processing and Concept Review rules: Chapter 20-50 (Permit Application Filing and Processing / Concept Review).
- Objective Design Standards for streamlined/ministerial residential projects: § 20-39.010 – § 20-39.030.
- Hillside Development Standards and Hillside Development Permit triggers: § 20-32.010 – § 20-32.060.
- District development tables and district descriptions (e.g., CO/CN/CG and mixed‑use districts): Division 2 district tables (see Table 2-8 and related district tables) and the Zoning Map authority § 20-20.020; height measurement rules § 20-30.070.
- Setback measurement and allowed projections: § 20-30.110 and Table 3-2.
- North Santa Rosa Station Area combining district (-SA) design rules and active ground-floor expectations: -SA combining district language (see the -SA subsection).
- DRPB establishment and duties: DRPB chapter (Design Review and Preservation Board) and its authority to review per § 20-50.020 and § 20-52.030.
Sources
Retrieved passages
- Santa Rosa Zoning Code (Chapter 20-50) High relevance
- Santa Rosa Zoning Code (Chapter 20-66) High relevance
- Santa Rosa Zoning Code (Chapter 20-66.) High relevance
- Santa Rosa Zoning Code (§ 1) Medium relevance
- CBC § 12 (§ 12) Medium relevance
- Santa Rosa Zoning Code (§ 1) Medium relevance
- Santa Rosa Zoning Code (§ 1) Medium relevance
- Santa Rosa Zoning Code (§ 2) Medium relevance
Cited sections
- Santa Rosa Zoning Code (Title 20) — Design Review: **§ 20-52.030** (Design Review—findings, application, public notice, time limits). (Title 20)
- Table 6-1 — Review and Appeal Authority (shows who hears Design Review appeals and which body acts): **Table 6-1 / § 20-52.030**. (§ 20-52.030)
- Permit application filing / processing and Concept Review rules: **Chapter 20-50** (Permit Application Filing and Processing / Concept Review). (Chapter 20-50)
- Objective Design Standards for streamlined/ministerial residential projects: **§ 20-39.010 – § 20-39.030**. (§ 20-39.010)
- Hillside Development Standards and Hillside Development Permit triggers: **§ 20-32.010 – § 20-32.060**. (§ 20-32.010)
- District development tables and district descriptions (e.g., CO/CN/CG and mixed‑use districts): Division 2 district tables (see Table 2-8 and related district tables) and the Zoning Map authority **§ 20-20.020**; height measurement rules **§ 20-30.070**. (§ 20-20.020)
- Setback measurement and allowed projections: **§ 20-30.110** and Table 3-2. (§ 20-30.110)
- North Santa Rosa Station Area combining district (-SA) design rules and active ground-floor expectations: -SA combining district language (see the -SA subsection).
- DRPB establishment and duties: DRPB chapter (Design Review and Preservation Board) and its authority to review per **§ 20-50.020** and **§ 20-52.030**. (§ 20-50.020)
- SantaRosa_ZoningCode.md
Frequently asked questions
Do I need design review in Santa Rosa?
If your project is new construction, a significant exterior alteration, or a land use change that triggers discretionary review, you will be subject to Design Review under § 20-52.030 unless the project qualifies for the objective/ministerial path in Chapter 20-39. Verify applicability during a pre-application check with the Department.
What are the required findings for Design Review approval?
The review authority must find that the project demonstrates superior design quality, is compatible with surrounding uses, won’t unreasonably interfere with neighbors, uses appropriate materials and colors, isn’t detrimental to public welfare, and has been reviewed under CEQA — these are the seven findings listed in § 20-52.030.I.
Who decides and who can I appeal to?
Decision authority depends on the Design Review type: Major Design Review is typically heard by the DRPB (with Council appeal available), Minor Design Review decisions can be made by the Zoning Administrator (appealable to DRPB), and Streamlined/ministerial actions have separate routes; see the appeal/review matrix at Table 6-1 and § 20-52.030.
Can small multi‑family projects use a streamlined (objective) review instead of traditional Design Review?
Yes—residential projects that meet the objective standards in Chapter 20-39 may qualify for streamlined or ministerial processing; those objective rules replace subjective Design Guidelines only when all objective criteria are met. Check § 20-39.010 and the Department’s objective standards list before assuming this path.
Does being in the -H historic overlay change Design Review?
Yes. Properties in the -H combining district and other designated historic resources are subject to Chapter 20-58 historic processing and the DRPB’s historic review rules; some historic alterations use Landmark Alteration Permits with different standards and exceptions for setbacks/dimensions. Verify if your property is designated and follow Chapter 20-58 rules.
What district height and lot coverage rules matter for design review?
District-specific numeric limits (example: CO = 35 ft, CN = 45 ft, CG = 55 ft) are set in the Division 2 district tables and are measured per § 20-30.070; Design Review can require additional articulation or larger setbacks beyond those baseline numbers. Always check the district table and § 20-30.070 for measurement rules.
How does Design Review interact with parking and landscaping requirements?
Design Review evaluates the site layout and relationship to streets and neighbors and will consider required technical elements such as off‑street parking and landscaping; parking standards are in Chapter 20-36 and landscaping in Chapter 20-34, and Design Review may require configuration or screening changes to meet the Design Guidelines and findings.
If my lot is on a hillside, will design review be different?
Yes. Projects with slopes ≥10% are subject to Hillside Development Standards and generally require a Hillside Development Permit in addition to Design Review; see § 20-32.010 – § 20-32.060 for slope thresholds and additional documentation.
Can Design Review require a project to add ground-floor retail or active uses?
In certain areas (for example the -SA Station Area or Active Ground Floor Overlay), Design Review may require active ground-floor uses, transparency, and pedestrian-oriented features as conditions of approval; these rules are in the combining district language and enforced through Design Review. Check the -SA combining district rules and the Design Guidelines.
How long does a Design Review approval last?
A Design Review approval’s term is limited so that construction must start within the approval period; per § 20-52.030.J, approvals expire after the standard discretionary permit period (no more than 24 months) unless extended by the same review authority.
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