Alturas — Design Review

Last reviewed: July 3, 2026

Overview

Alturas handles what many cities call "design review" through its Site Plan Review and related discretionary permits (Use Permits, Administrative Permits) in the Zoning Ordinance. The purpose is to confirm that proposed developments meet the Site Planning and Development Standards (landscaping, building placement, materials, parking, signage, etc.) and to set conditions; Site Plan Review is generally ministerial for qualifying projects while Use Permits are discretionary. See the city's zoning rules for how Site Plan Review, Use Permits, and related processes interact in practice. Key authorities: § 28.42.010, § 28.42.020, § 28.52.030, § 28.52.040.

Note: This page stays strictly inside Alturas zoning/planning rules (design review = Site Plan Review / Use Permit interplay). For building-code compliance (Title 24 / California Building Standards), see the state's codes. California Building Standards Code

How Alturas organizes "design review" (what to expect)

• The Zoning Ordinance calls out a formal Site Plan Review (SP) permit that applies to most non‑single‑family projects and to "Substantially Improved" projects; it performs the role of design or architectural review in Alturas. § 28.42.010 and § 28.52.030 describe applicability and required submittals.

• The Director may waive Site Plan Review for limited classes of work (interior-only, minor exterior alterations, some signs, specific variance-related cases) per § 28.42.020.

• Projects that require a Use Permit (UP) are reviewed through the Use Permit process; the Use Permit review incorporates most site-planning/design standards so a separate SP is not required when a UP is needed. § 28.52.040.

• Landscape review and landscape standards are enforced through the Site Plan/Use Permit process; specific landscape thresholds and plan content are in § 28.43.020–030. Alturas Landscaping and Screening

• Site Plan approvals are ministerial decisions and are not recorded; because conditions do not automatically "run with the land," the decision authority may require a recorded Maintenance Agreement where ongoing obligations are necessary. § 28.42.030 (C) and § 28.52.030 (F).

• Courtesy/public notice practices differ: Site Plan Review is ministerial (no mandatory hearing) but Alturas distributes a courtesy notice and some projects trigger formal public notice/hearing requirements; Use Permits require hearings and notices per the public notice table. § 28.52.030 (C–D) and § 28.52.040 (D).

• Site Plan Review evaluates compliance with the Site Planning and Development Standards in Article IV; those development standards (setbacks, parking, signage, lighting) are enforced through SP/UP. See Alturas Development Standards, Alturas Parking, and Alturas Signage.

District-by-district breakdown (where Site Plan Review / design review most commonly applies)

The Zoning Ordinance lists Primary Zones in Article I, Division 2. For design-review purposes, the most common districts and the zoning text that controls their intended use are summarized below. (When numeric development standards are not present in the retrieved materials, that gap is noted.)

AG — General Agriculture

• Purpose: Intended for grazing, animal raising, horticulture, and limited residential development. Minimum lot size for residential use: 2 acres. § 28.21.020(A).
• Typical permitted uses: agricultural operations, single‑family dwellings, one Guest House and one Secondary Dwelling where conditions permit. § 28.21.020(A).
• Key dimensional / design items (what the ordinance shows): Minimum lot size = 2 acres. Other specifics (front setbacks, lot coverage, FAR, height) — Not found in retrieved materials. Verify with the City for parcel‑specific standards.
• Where Site Plan Review applies: agricultural sites converting to commercial or higher‑intensity uses will trigger Site Plan Review per § 28.42.010 if not single‑family.

RR — Rural Residential

• Purpose: Low‑density residential where sewer/water may be limited; accommodates up to 3 dwelling units per net acre. § 28.21.020(B).
• Typical permitted uses: single‑family dwellings, guest house, secondary dwelling depending on services. § 28.21.020(B).
• Key dimensional / design items: Density cap = 3 du/acre. Other numeric standards — Not found in retrieved materials.
• Where Site Plan Review applies: multi‑unit or "Substantially Improved" developments (see SP definition) will be routed through SP or UP. § 28.42.010.

R1 — Single‑Family Residential

• Purpose: To accommodate up to 7.25 dwelling units per net acre (typical single‑family lot pattern). § 28.21.020(C).
• Typical permitted uses: single‑family homes, one Guest House and one Secondary Dwelling where allowed. § 28.21.020(C).
• Key dimensional / design items: Density cap = 7.25 du/acre. Other specifics (setbacks, lot coverage, height) — Not found in retrieved materials; check Alturas Development Standards.
• Where Site Plan Review applies: Single‑family projects are generally exempt from mandatory Site Plan Review per § 28.42.010 (Site Plan required for all development projects except Single Family Residential development projects), but accessory projects, ADUs, or major renovations can still trigger reviews depending on scope. § 28.42.010.

R2 — Medium Density Residential

• Purpose: Up to 15 dwelling units per net acre, allows duplexes/triplexes/fourplexes (shared‑wall housing). § 28.21.020(D).
• Typical permitted uses: single‑ and multi‑family attached housing; Guest House and Secondary Dwelling where compatible. § 28.21.020(D).
• Key dimensional / design items: Density cap = 15 du/acre. Other numeric standards — Not found in retrieved materials.
• Where Site Plan Review applies: multi‑unit developments meeting the threshold of "commercial" scale or over four units are subject to Site Planning and Design Standards and thus SP/UP as noted in Article IV. § 28.38.030 (B).

R3 — High Density Residential

• Purpose: Up to 29 dwelling units per net acre; allows stacked apartments, hotels, mobile home parks. § 28.21.020(E).
• Typical permitted uses: multifamily housing, hotels/motels, mobile home parks, etc. § 28.21.020(E).
• Key dimensional / design items: Density cap = 29 du/acre. Other numeric standards — Not found in retrieved materials.
• Where Site Plan Review applies: higher‑density and multifamily proposals routinely trigger Site Plan Review and may require Use Permits when the use is discretionary. § 28.42.010; § 28.52.040.

(If your property is in a commercial or overlay district, consult Alturas Overlay Districts and Alturas Land Use for overlay‑specific rules that can change Site Plan/UP requirements.)

Quick reference table — most decision‑relevant design-review rules

Checklist — what an applicant must submit / satisfy for Site Plan Review in Alturas

• A complete application form and application fee (per Article V general requirements). Verify with the Planning Department. (General rule; specific fee not in retrieved materials.)
• A Site Plan drawn to scale showing lot boundaries, footprints of existing and proposed buildings, easements, parking, drainage, and landscape areas. § 28.52.030 (B1).
• Elevation drawings for all sides of the buildings proposed for construction or exterior alteration. § 28.52.030 (B2).
• Materials board (samples/colors/roofing/paint) and lighting descriptions. § 28.52.030 (B3).
• Landscape plan meeting the Landscape Standards (minimum landscape area, plant list, water‑conserving specifications). § 28.43.020–030. Alturas Landscaping and Screening
• Parking plan showing required stalls and access (consult Alturas Parking). § 28.52.030 (B1).
• Sign plan if signs are proposed (See Alturas Signage and § 28.46.030 for sign design standards).
• If a Use Permit is required (discretionary use), prepare for a public hearing (notice schedule per Table 28.50.020). § 28.52.040 (D).

Risks & Ambiguities

Plain‑English summary

If you are changing anything beyond a plain single‑family remodel in Alturas, expect the project to face a Site Plan Review where the planning department will check the site plan, elevations, landscaping and parking to make sure the project meets Alturas' development standards; more discretionary or novel uses go through a Use Permit public hearing. Key rules: Site Plan Review rules in § 28.42.010 and submittal/approval rules in § 28.52.030–040.

Source References

• Alturas Zoning Ordinance — Site Plan applicability: § 28.42.010.
• Alturas Zoning Ordinance — Site Plan waiver: § 28.42.020.
• Alturas Zoning Ordinance — Site Plan relationship to permits and recording: § 28.42.030.
• Alturas Zoning Ordinance — Site Plan Review permit (submittals, CEQA, approval standards): § 28.52.030.
• Alturas Zoning Ordinance — Use Permits and integration with SP: § 28.52.040.
• Alturas Zoning Ordinance — Landscape standards and applicability: § 28.43.020–030.
• Alturas Zoning Ordinance — Primary zone descriptions and densities: § 28.21.020 (AG, RR, R1, R2, R3).
• Alturas Zoning Ordinance — Accessory structure rule (detached garages projecting forward): § 28.41.070.
• Alturas Zoning Ordinance — Sign general design/placement criteria: § 28.46.030.
• California ADU handbook (state guidance on ADUs and design standards): relevant excerpts on ADU design standards and ministerial review.

Retrieved passages

• Alturas Zoning Code (Section 28.51.030D) High relevance show source text
• Alturas Zoning Code (section is) High relevance show source text
• Alturas Zoning Code (section is) High relevance show source text
• Alturas Zoning Code (Article IV) High relevance show source text
• Alturas Zoning Code (Article IV) High relevance show source text
• Alturas Zoning Code (Article V) High relevance show source text
• Alturas Zoning Code (Article VIII) High relevance show source text
• CBC § 66314 (§ 66314) High relevance show source text

Cited sections

• Alturas Zoning Ordinance — Site Plan applicability: **§ 28.42.010**. (§ 28.42.010)
• Alturas Zoning Ordinance — Site Plan waiver: **§ 28.42.020**. (§ 28.42.020)
• Alturas Zoning Ordinance — Site Plan relationship to permits and recording: **§ 28.42.030**. (§ 28.42.030)
• Alturas Zoning Ordinance — Site Plan Review permit (submittals, CEQA, approval standards): **§ 28.52.030**. (§ 28.52.030)
• Alturas Zoning Ordinance — Use Permits and integration with SP: **§ 28.52.040**. (§ 28.52.040)
• Alturas Zoning Ordinance — Landscape standards and applicability: **§ 28.43.020–030**. (§ 28.43.020)
• Alturas Zoning Ordinance — Primary zone descriptions and densities: **§ 28.21.020 (AG, RR, R1, R2, R3)**. (§ 28.21.020)
• Alturas Zoning Ordinance — Accessory structure rule (detached garages projecting forward): **§ 28.41.070**. (§ 28.41.070)
• Alturas Zoning Ordinance — Sign general design/placement criteria: **§ 28.46.030**. (§ 28.46.030)
• California ADU handbook (state guidance on ADUs and design standards): relevant excerpts on ADU design standards and ministerial review.
• Alturas_ZoningCode.md
• 2025 California ADU handbook.md

• Official Alturas code library