Local zoning · Redding

Redding — Overlay Districts

Q: What are the minimum area and density rules for an MU‑N district?

A MU‑N overlay is normally applied to areas of at least 20 acres (can be reduced by the planning commission) and no more than 160 acres ; the mixed‑use neighborhood development plan sets minimum/maximum densities and core proportions via Schedule 18.55.030‑A and the plan content requirements in § 18.55.040–.050 .

Overlay Districts under the Redding local zoning and planning code, with the controlling citations.

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Last reviewed: July 2, 2026

Overview

Overlay districts in Redding are special zoning layers that sit on top of a base zoning district to add, modify, or supersede land‑use and development controls in targeted places. The Redding Zoning Ordinance organizes these in Division V and by named chapters—examples include PD, MU, MU-N, MR, SP, and BH—each with distinct purposes, permit triggers and required plans. See the city's rules on how overlays interact with base rules under § 18.01.050 and the map/interpretation rules in § 18.01.080 for how overlays are shown and applied on the zoning map.

When you evaluate a site in an overlay district you must consult the overlay chapter first, then the base district standards and the applicable schedules and specific‑plan documents; where a specific plan applies, the specific plan controls over the zoning code unless the plan is silent. Development standards are therefore a layered analysis: overlay → specific plan (if any) → base zoning → general code.

(Internal links: the first mention of frequently cross‑referenced topics is linked inline — see Redding Development Standards, Redding Parking, Redding Design Review, Redding ADUs, California Building Standards Code, Redding Signage, Redding Nonconforming Uses, and Redding Variances and Exceptions.)

District-by-district breakdown

Note: below I summarize the code intent, typical uses and the most decision‑relevant triggers and standards. Where the code points to schedules or other chapters for itemized lists (e.g., specific use tables or numeric setbacks), I cite the controlling provision and note when the detailed schedule text was not included in the retrieved materials.

PD — Planned Development Overlay District

Purpose: Provide flexibility to achieve more efficient, higher‑quality residential, commercial or mixed projects than base districts would allow; encourage design excellence and affordable housing where applicable. § 18.53.010.
Typical permitted uses: Those compatible with the base district but the city may tailor allowed/conditional uses when rezoning to PD; a planned development plan is required for all development in the PD overlay. § 18.53.020–.040.
Key dimensional/administrative standards: Minimum overlay area generally 1 acre unless the planning commission finds otherwise; planned development applications follow the use‑permit process and must include conceptual plans, maps and plan content listed in § 18.53.040. § 18.53.020–.040.
Where it applies: Combined with base districts on the zoning map as a “PD” suffix (example: RM-12‑PD). § 18.53.020.

Practical note: Expect joint review of rezoning + planned development plan; subdivision approval is separate (see § 18.53.030).

MU — Mixed Use Overlay District

Purpose: Allow a flexible mix of residential, office and commercial uses and greater intensity than base districts where appropriate; promote pedestrian orientation and urban design goals. § 18.54.010–.050.
Typical permitted uses: The ordinance ties MU allowed uses to schedules for residential and commercial uses — e.g., uses listed by reference in Schedule 18.31.020‑A (residential) and Schedules 18.32.020‑A / 18.33.02‑A (office/commercial). The city council may modify those lists when adopting an MU overlay. § 18.54.040.
Key dimensional/administrative standards: Where a plan exists the plan’s standards supersede the code; if not addressed, the code prevails. The planning commission can approve deviations from density, FAR, setbacks, height, parking, signage and other limits upon required findings in § 18.54.050–.060. § 18.54.050.
Where it applies: Applied to properties designated for mixed use on the zoning map as an overlay designation (e.g., GC‑MU).

Practical note: Mixed‑use projects are processed as use permits and must submit site plans showing building footprint, parking, landscaping and circulation (see § 18.54.030). Redding Design Review rules may be imposed via rezoning to DR concurrently. § 18.54.030–.070.

(When you size parking for an MU project consult the Redding Parking standards and the MU plan provisions; the MU chapter explicitly allows the planning commission to modify parking requirements via findings.)

MU-N — Mixed Use Neighborhood Overlay District

Purpose: Create compact, pedestrian‑oriented neighborhoods with a defined mixed‑use core and stepped densities outward; permit greater flexibility and intensity than typical residential districts. § 18.55.010.
Typical permitted uses: Uses are established in the approved mixed‑use neighborhood development plan and generally include office and commercial uses allowed in LO, NC, SC, GC, and residential types in RM and RS. § 18.55.030.
Key dimensional/administrative standards:
- Minimum overlay area normally 20 acres (may be reduced by planning commission) and not more than 160 acres per § 18.55.020.
- Approval of a mixed use neighborhood development plan is required before commercial development or residential densities exceeding the base district. The plan must include maps, density ranges, a circulation plan, and a required mix of uses (see § 18.55.040–.050 and Schedule 18.55.030‑A for proportions and target densities).
Where it applies: Applied as MU‑N combined with an “R” residential base district on the zoning map.

Practical note: The development plan defines the core and maximum densities; the code gives specific minimum core %, target densities and FAR guidance in the schedule referenced by § 18.55.050.

MR — Mineral Resources Overlay District

Purpose: Reserve sites for mineral extraction while managing compatibility, reclamation and ultimate reuse. § 18.52.010.
Typical permitted uses: The MR schedule (Schedule 18.52.02‑A) classifies uses with P (permitted), S (site development permit by the board) or U (use permit by planning commission). Typical allowed activities include crop/animal raising, mining/quarrying, stockpiling, crushing, concrete batching—often subject to site development/use permits, and limited residential density (e.g., 1 du per 40 acres for single‑family noted in the schedule). § 18.52.020.
Key dimensional/administrative standards: Special use permit or site development permit thresholds in § 18.52.020 and applicable processing in Chapters for site development, mining and reclamation. See the schedule for density caps and required approvals.
Where it applies: Shown as an MR overlay on the zoning map combined with a base district.

Practical note: Many mineral extraction uses require discretionary permits; check the schedule cell for the precise letter designation and confirm applicable reclamation/Chapter 18.44 references. § 18.52.020.

SP — Specific Plan Overlay District

Purpose: Identify properties with adopted specific plans and require that all development be consistent with the specific plan goals, policies and standards; provide bridging rules between specific‑plan districts and Title 18. § 18.57.010–.080.
Typical permitted uses and standards: Uses and standards are those in the adopted specific plan; where the specific plan creates its own zoning districts the code supplies a correlation to base zoning. § 18.57.020–.080.
Key dimensional/administrative standards: A specific plan application must include the required text and diagrams under state law and city rules; development must be consistent with the specific plan unless the planning commission authorizes a minor deviation consistent with plan intent. § 18.57.030–.060.
Where it applies: Designated as SP on the zoning map combined with base districts (e.g., GC‑SP).

Practical note: For properties in SP overlays look first at the adopted specific plan document (for example, SP‑1 Redding Downtown Specific Plan Update and SP‑2 Riverfront are listed by the code) because the specific plan can supersede code numeric standards. § 18.57.080.

BH — Building Height Overlay District

Purpose: Authorize greater building height in targeted areas to implement mid‑rise and high‑rise policies downtown and other economic centers; used as incentive for denser, mixed‑use redevelopment. § 18.58.010.
Typical permitted uses: Same as the base district; the overlay governs allowable increased height subject to discretionary review. § 18.58.020–.030.
Key dimensional/administrative standards:
- Buildings exceeding base district height require a use permit from the planning commission. § 18.58.030.
- The code defines mid‑rise (occupied floors ≤ 75 ft above finished grade) and high‑rise (> 75 ft) but does not set a numeric upper limit; the final maximum is established by the approved use permit and any council resolution design criteria. § 18.58.040–.050.
Where it applies: Mapped as BH in combination with base zoning (e.g., GC‑BH) in areas intended for taller buildings.

Practical note: Projects seeking height above the base limit should expect design criteria, design review committee involvement and findings related to scale, massing and public benefits. § 18.58.050–.060.

DR — Design Review Overlay (DR)

Role: The code permits the imposition of DR design review requirements on projects in conjunction with overlays such as MU or as required by rezoning. The code references Chapter 18.56 (“DR” Design Review Overlay District) and makes design review part of overlay approvals and site/use permit processing. § 18.54.070; § 18.56.070.
Specific standards and thresholds: Not all text of Chapter 18.56 is present in the retrieved files; the ordinance requires design review committee consultation where a design review overlay or council resolution mandates it. For exact design standards consult § 18.56 and the specific overlay chapter. Not found in retrieved materials.

Quick reference table — common overlays (decision‑relevant items)

Overlay District	Key decision triggers / permits	Typical uses (summary)	Code reference
PD Planned Development	Planned development plan required; rezoning to PD; site subdivision separate	Flexible residential/commercial/mixed uses tailored by PD plan	§ 18.53.020–.040
MU Mixed Use	Use permit process; MU plan may supersede base standards; planning commission deviations allowed	Mixed residential, office, commercial per referenced schedules	§ 18.54.030–.050
MU‑N Mixed Use Neighborhood	Mixed-use neighborhood development plan required; min 20 acres normally	Neighborhood core retail/office + residential in peripheral areas	§ 18.55.020–.050 and Schedule 18.55.030‑A
MR Mineral Resources	Site development permit or use permit per schedule; reclamation/compatibility review	Mining, stockpiling, concrete/crushing plants (discretionary)	§ 18.52.010–.020 and Schedule 18.52.02‑A
SP Specific Plan	All development must be consistent with the specific plan; specific plan controls when conflicts exist	Defined by each specific plan (e.g., SP‑1 Downtown)	§ 18.57.010–.080
BH Building Height	Use permit required for height above base; mid‑rise ≤ 75 ft, high‑rise > 75 ft	Same use types as base; allows taller buildings subject to design criteria	§ 18.58.030–.050
DR Design Review Overlay	Design review committee recommendations on site/use permits where DR applies	Applies across uses to enforce design objectives	§ 18.56.070 (see DR chapter) — specific standards: Not found in retrieved materials.

Checklist — what an applicant must satisfy for an overlay site

Confirm overlay(s) on the property's zoning designation on the official zoning map (overlay prefixes/suffixes) — see § 18.01.050.
Determine whether a specific plan applies; if so, prepare the submittal to conform with the specific plan § 18.57.020–.070.
For PD: prepare a planned development plan and required materials and attend pre‑application conference; comply with § 18.53.040.
For MU/MU‑N: prepare a mixed‑use development plan and site plans showing building locations, gross floor area, parking, landscaping, circulation and design guidelines as specified in § 18.54.030 and § 18.55.040.
For MR: review Schedule 18.52.02‑A for whether a site development permit or use permit is required and prepare reclamation/compatibility materials where required § 18.52.020.
For BH: if seeking height above base district limits, prepare use permit materials and design materials addressing mid/high‑rise criteria § 18.58.030–.050.
Check for required design review (DR) or design review committee consultation under § 18.56.070 and be ready for committee recommendations.
Verify parking requirements with the Redding Parking standards and whether overlay/specific plan modifies parking ratios.
Confirm required permit type (ministerial vs discretionary); prepare for CEQA/environmental review if project is discretionary. See planning commission/city council roles § 18.10.020–.030.

Risks & Ambiguities

Issue	Why it matters	What to verify
Zoning map boundary ambiguity	A parcel split by different overlays can change applicable standards	Confirm exact overlay lines with the director; code gives map interpretation rules and allows the director/board/planning commission to determine boundaries § 18.01.080.
Schedules referenced but not reproduced in ordinance excerpted here	The overlay chapters often point to Schedules (use tables, numeric setbacks, densities) that contain the operative lists and numbers	Obtain and review Schedules 18.31, 18.32, 18.33, 18.52.02‑A, and 18.55.030‑A referenced by the overlay chapters; do not rely on summaries alone. § 18.54.040; § 18.52.020; § 18.55.050.
Design review applicability and standards	Design review may be required and can add discretionary findings; the DR chapter specifics are required for design submissions	Confirm whether the property is subject to DR overlay or council resolution and obtain Chapter 18.56 standards and any adopted design criteria/resolutions. Not all 18.56 text was available in retrieved materials.
Height limits under BH (no explicit upper limit)	BH defines mid/high‑rise categories but leaves maximum height to permit approval, which creates uncertainty for financing/structural design	Early pre‑application with the director and clear scoping of the use permit and council design criteria is essential; see § 18.58.040–.050.
Overlap with specific plans	Specific plans can supersede the zoning code and include their own district rules	Obtain the specific plan document (e.g., SP‑1 or SP‑2) and confirm which standards control per § 18.57.070–.080.

Plain-English Summary

Redding’s overlays (like PD, MU, MU‑N, MR, SP and BH) are additional, mapped rules layered over a property’s base zone that change what you must submit and which standards apply—some allow greater density or height (subject to permits), some manage resource extraction, and some make a specific plan the controlling rule. Always check the overlay chapter first, then the specific plan (if any), then base‑district schedules; if anything is uncertain, ask the director for a map interpretation.

Source References

Redding Municipal Code — Division V: Overlay district regulations; see especially § 18.01.050 (overlay designators).
PD — Planned Development Overlay: § 18.53.010–.040.
MU — Mixed Use Overlay: § 18.54.030–.070.
MU‑N — Mixed Use Neighborhood Overlay: § 18.55.010–.050 and Schedule 18.55.030‑A.
MR — Mineral Resources Overlay: § 18.52.010–.020 and Schedule 18.52.02‑A.
SP — Specific Plan Overlay: § 18.57.010–.080 (includes SP‑1 Downtown and SP‑2 Riverfront references).
BH — Building Height Overlay: § 18.58.010–.060 (use permit requirement; mid‑rise/high‑rise definitions).
Design review references: § 18.56.070 and § 18.54.070 (DR may be imposed with MU). Not all Chapter 18.56 text was present.
Map interpretation / boundary rules: § 18.01.080 (director/board/planning commission determination; map construction rules).

Sources

Retrieved passages

Redding Zoning Code (§ 2) High relevance
Redding Zoning Code (§ 2) High relevance
Redding Zoning Code (§ 2) High relevance
Redding Zoning Code (§ 2) Medium relevance
Redding Zoning Code (Chapter 18.52) Medium relevance
Redding Zoning Code (Section 18.53.040) Medium relevance
Redding Zoning Code (§ 2) Medium relevance
Redding Zoning Code (§ 2) Medium relevance
Redding Zoning Code (Chapter 18.18) High relevance
Redding Zoning Code (section that) Medium relevance
Redding Zoning Code (Section 18.31.040) Medium relevance
Redding Zoning Code (§ 2) Medium relevance
Redding Zoning Code (§ 2) Medium relevance

Cited sections

Official Redding code library

Frequently asked questions

What is an overlay district in Redding and where do I find it on the zoning map?

An overlay district is a mapped additional regulatory layer (for example PD, MU, MR, SP, BH) that modifies or supplements the base zoning on a property; overlay designators are shown as suffixes or prefixes on the official zoning map and established under § 18.01.050. If the map boundary is unclear, the director or planning bodies make the official determination per § 18.01.080.

What can I build on an MU lot in Redding?

Uses allowed in an MU overlay are tied to the residential and commercial use schedules referenced in the code (Schedules 18.31.020‑A, 18.32.020‑A, 18.33.02‑A); the MU chapter allows the planning commission/city council to refine permitted or conditional uses when adopting the overlay and to approve deviations from numeric limits with findings. For project submittal requirements see § 18.54.030–.050.

What are the minimum area and density rules for an MU‑N district?

A MU‑N overlay is normally applied to areas of at least 20 acres (can be reduced by the planning commission) and no more than 160 acres; the mixed‑use neighborhood development plan sets minimum/maximum densities and core proportions via Schedule 18.55.030‑A and the plan content requirements in § 18.55.040–.050.

Do I need design review for a mixed‑use project in Redding?

Design review may be required; the MU chapter notes that the council can impose the DR Design Review overlay concurrently with MU and Chapter 18.56 requires design review committee consultation where mandated. Check whether the property carries a DR designation or whether the rezoning includes DR per § 18.54.070 and § 18.56.070.

If I want more height than my base zone allows, what does Redding require?

If the property is in a BH overlay, buildings above the base district height require a use permit from the planning commission; the code defines mid‑rise as occupied floors ≤ 75 ft above finished grade and high‑rise as > 75 ft, but sets any maximum by the approved permit—expect design criteria and committee review as noted in § 18.58.030–.050.

Are mining activities allowed where an MR overlay exists?

The MR overlay explicitly provides for mineral extraction and related activities; permitted status (P, S, U) is established in Schedule 18.52.02‑A and many extraction uses require site development permits or use permits as set out in § 18.52.020. Reclamation and compatibility standards apply per the MR chapter and related mining/reclamation chapters.

How do specific plans interact with overlay or base district rules?

Where a specific plan (an SP overlay) has been adopted, the specific plan's allowable uses, standards and regulations control over this code when there is a conflict; where the plan is silent the zoning code applies. Specific plans and their mapping are referenced in § 18.57.020–.080 (for example SP‑1 Downtown).

If my lot is partially in two overlays, how is that resolved?

The code gives map interpretation rules and authorizes the director, the board of administrative review or the planning commission to determine the precise location of a district boundary if a lot is divided; those determinations do not amend the map but resolve the applicable standards for that parcel (see § 18.01.080).

Can an MU or PD overlay change parking or signage requirements?

Yes — the MU and PD chapters explicitly allow the planning commission/city council to modify parking, signage and other development standards within the overlay plan or by findings when approving a plan (see § 18.54.050 and PD plan provisions § 18.53.040). Always cross‑check with the Redding Parking and Redding Signage rules when preparing plans.

Where do I find the exact use tables and numeric setbacks referenced by overlays?

Overlays typically point to Schedules (for example Schedule 18.31, 18.32, 18.33, 18.52.02‑A, 18.55.030‑A). Those schedules contain the detailed use lists, setbacks, densities and lot standards; retrieve and review the relevant schedule(s) because the overlay chapter text defers to them for itemized rules (see § 18.54.040; § 18.52.020; § 18.55.040–.050).

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