Local zoning · Hawthorne

Hawthorne — Design Review

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

Quick answer

In Hawthorne, development projects—including additions—are reviewed by the Community Development Director and Planning Commission before permits when design review applies (§ 18.37.015; § 18.06.080(C)). Plans must show a parking plan for new floor area/intensification (§ 18.07.030(D)), landscaping for new or extensive remodels (§ 18.07.030(E)), and comply with glare limits (reflective glass ≤ 20% of street-visible facade, § 18.08.030(O)) and front-yard fence caps (3–4 ft, § 18.07.030(G)(3)).

Last reviewed: July 25, 2026 · AI-generated analysis · General information, not legal advice · details

Compiled from Hawthorne's adopted code with AI research tools and grounded in the sources cited below. Verify with Hawthorne planning staff before relying on it.

Overview

Hawthorne’s zoning ordinance requires architectural, site, and design review before issuing building permits where design review applies. Review authority sits with the Community Development Director and the Planning Commission, and applies to development projects citywide, including additions and remodeling, with added standards in designated visual resource areas (§ 18.06.080(C); § 18.07.060(C); § 18.08.060(C); § 18.37.015). Design review checks conformance with adopted development standards, including landscaping, parking, screening, lighting, performance limits (noise/glare), and, where applicable, coastal/visual-resource protections (§ 18.07.030; § 18.08.030; § 18.37.060; § 18.37.015).

Key rule: All “development projects, including additions and remodeling,” are subject to design review by the Community Development Director and Planning Commission, and projects within or adjacent to visual resource areas must also meet the City’s visual resource standards (§ 18.37.015).

Linking context:

Start with the city’s zoning map and district rules, then match your submittal to applicable development standards.
Plan for parking, landscaping and screening, and signage early; each is reviewed for design conformance (§ 18.07.030(D), (E), (F); § 18.37.060).
If you need relief from standards, see variances and exceptions (§ 18.06.080(B); § 18.08.060(B)).
Proposals that touch nonconforming conditions should be coordinated with nonconforming uses rules (§ 18.06.080(B)).
Where an accessory unit is part of a project, ensure it meets the City’s ADU regulations (§ 18.07.030(J)).
Check if any overlay districts or scenic/visual resource areas apply (§ 18.37.015).

What triggers Design Review in Hawthorne

Before issuing a building permit “for which design review is required,” the City must complete architectural and site/design review (§ 18.06.080(C); § 18.07.060(C); § 18.08.060(C)). Specific thresholds are not stated in the source materials (see Information Gaps).
“Development projects, including additions and remodeling,” are subject to standards reviewed by the Community Development Director and Planning Commission (§ 18.37.015).
Projects “within or adjacent to visual resource areas” must also satisfy visual-resource standards (§ 18.37.015).

Who reviews and what is considered

Reviewing bodies: Community Development Director and Planning Commission; they may also consider recommendations of any City Council–appointed advisory committee (§ 18.37.015).
Core design topics checked for conformance:
- Parking plan for new development, added floor area, or intensification of use (§ 18.07.030(D)).
- Landscaping plan for new construction or “extensive remodel” (§ 18.07.030(E)).
- Signage conformance and approvals (§ 18.07.030(F); § 18.37.060).
- Mechanical equipment and utility meter screening from public view (§ 18.08.030).
- Performance standards: noise at property lines abutting R/OS/UR/OSR, and glare/reflective glazing (§ 18.07.030(C); § 18.08.030(O)).
- Exterior lighting: functional, subtle, compatible with building style (§ 18.37.060).
- Undergrounding of utilities in new development (§ 18.37.060; § 18.07.030(L)).
- Coastal/visual resource protections where applicable (§ 18.08.030(P); § 18.37.015).

Decision Standards the City applies

Parking quantity/layout and design conformance checked through the required parking plan (§ 18.07.030(D)).
Landscaping quantity/distribution and water-efficiency program conformance via the required plan (§ 18.07.030(E)).
Fence/wall placement and heights in front/side/rear yards, and commercial–residential buffers (§ 18.07.030(G)).
Noise limits at property lines abutting residential/open space: daytime maximums of 60/70/80 dBA depending on duration; nighttime 55/65/75 dBA (§ 18.07.030(C)).
Reflectivity: mirrors/highly reflective glass limited to 20% of building surface visible from a street unless applicant demonstrates no significant glare hazard (§ 18.08.030(O)).
Lighting: subtle, compatible fixtures; Signs per Title 15 and Title 18, with review/approval as required (§ 18.37.060; § 18.07.030(F)).
Mechanical/screening: street-visible equipment must be screened; screening may be up to 50% open if equipment is still not visible (§ 18.08.030).
Undergrounding: new development installs utilities underground (§ 18.37.060; § 18.07.030(L)).

District-by-District lens for Design Review

Design review applies citywide; use this as a quick lens on how the City is likely to apply standards in each district. Where specific, district-level numeric standards or use lists are not present in the source materials, they are noted accordingly.

R-1 — Single-Family Residential

Purpose: Provide appropriately located areas for residential development with good light/air/privacy and high design compatibility (§ 18.06.010).
Typical permitted uses: Not found in source materials.
Key dimensional standards: Not found in source materials.
Design review focus: Neighborhood compatibility, fences (front yard limits), noise at property lines bordering R/OS, landscaping plan on new/extensive remodels, lighting subtlety (§ 18.07.030(C), (E), (G); § 18.37.060).
Where it applies: As mapped on the adopted zoning district map (§ 18.01.025).

R-2 — Two-Family Residential

Purpose: As above for residential districts (§ 18.06.010).
Typical permitted uses: Not found in source materials.
Key dimensional standards: Not found in source materials.
Design review focus: Duplex massing/compatibility, parking plan if intensification, landscaping, fences, lighting/noise compliance (§ 18.07.030(D), (E), (G); § 18.07.030(C); § 18.37.060).
Map basis: Zoning district map (§ 18.01.025).

R-3 — Multifamily Residential

Purpose: As above for residential districts (§ 18.06.010).
Typical permitted uses: Not found in source materials.
Key dimensional standards: Not found in source materials.
Design review focus: Site planning, usable open space, parking/landscaping plans, refuse/bicycle storage if multifamily, lighting and screening (§ 18.07.030(D), (E), (H), (I); § 18.37.060).
Map basis: Zoning district map (§ 18.01.025).

C-D — Commercial–Downtown

Purpose/uses/standards: Not found in source materials.
Design review focus: Street-oriented design, pedestrian-scale signage (encouraged), screening of equipment, parking/landscaping plans, glare limits (§ 18.07.030(D), (E), (F); § 18.08.030; § 18.08.030(O)).

C-R — Commercial–Residential

Purpose/uses/standards: Not found in source materials.
Design review focus: Transitions to residential (fence/wall buffers), equipment screening, parking/landscaping and lighting compatibility (§ 18.07.030(G)(4), (D), (E); § 18.08.030; § 18.37.060).

C-G — Commercial–General

Purpose/uses/standards: Not found in source materials.
Design review focus: Parking plans, interior/perimeter lot landscaping, screening, performance standards (vibration/dust/odors/glare) and reflective-glass cap at 20% (§ 18.07.030(D), (E)(3); § 18.08.030(O)).

C-VS — Commercial–Visitor Serving

Purpose/uses/standards: Not found in source materials.
Design review focus: Visual resource and scenic corridor sensitivity; coastal/community visual resource standards where applicable (§ 18.08.030(P); § 18.37.015).

PS — Public Service

Purpose/uses/standards: Not found in source materials.
Design review focus: Context-fitting public architecture, lighting subtlety, utility undergrounding, screening/signage conformance (§ 18.37.060; § 18.08.030; § 18.07.030(F)).

IND — Industrial

Purpose/uses/standards: Not found in source materials.
Design review focus: Performance standards (noise/glare), screening of equipment, buffer walls where adjoining ground-floor residential (§ 18.07.030(C), (G)(4); § 18.08.030(O)).

U-R — Urban Reserve

Purpose/uses/standards: Not found in source materials.
Design review focus: Low-intensity site improvements; visual resource sensitivity; undergrounding and subtle lighting (§ 18.37.015; § 18.37.060).

OS-R — Open Space Reserve

Purpose/uses/standards: Not found in source materials.
Design review focus: Minimal visual impact, noise at interface with residential/open space, lighting restraint (§ 18.07.030(C); § 18.37.060).

OS-A — Open Space–Active

Purpose/uses/standards: Not found in source materials.
Design review focus: Recreation facility siting, glare/noise mitigation, equipment/screening, signage consistency (§ 18.07.030(C); § 18.08.030; § 18.07.030(F)).

OS-P — Open Space–Passive

Purpose/uses/standards: Not found in source materials.
Design review focus: Visual resource protection and low-profile improvements (§ 18.37.015; § 18.37.060).

OS-C — Open Space–Conservation

Purpose/uses/standards: Not found in source materials.
Design review focus: Highest sensitivity to visual resource standards; subdued lighting (§ 18.37.015; § 18.37.060).

A-1 — Agriculture–Exclusive Floriculture

Purpose/uses/standards: Not found in source materials.
Design review focus: Screening of equipment/greenhouses, glare and lighting control (§ 18.08.030(O); § 18.37.060).

A-2 — Agriculture and Agriculture Reserve

Purpose/uses/standards: Not found in source materials.
Design review focus: Similar to A‑1; site/visual compatibility and screening (§ 18.08.030; § 18.37.060).

PUD — Planned Unit Development (including PUD‑X)

Purpose/uses/standards: Not found in source materials beyond amendment process.
Design review focus: Adherence to the specific PUD plan; any conflict in later phases requires a PUD amendment (§ 18.16.020). Expect robust site/architecture review against the PUD’s adopted standards.

MHP — Mobile Home Park

Purpose/uses/standards: Not found in source materials.
Design review focus: Internal circulation/parking plans, lighting/subtle signage, screening at perimeters (§ 18.07.030(D), (F); § 18.37.060).

Table — Common Design Checkpoints Hawthorne Applies

Decision Topic	Practical Rule of Thumb	Code Reference
When is design review applied?	Complete architectural/site/design review before any building permit “for which design review is required.” Thresholds not specified here; confirm with staff.	§ 18.06.080(C); § 18.07.060(C); § 18.08.060(C)
Who reviews?	Community Development Director and Planning Commission; may consider advisory committee recommendations.	§ 18.37.015
Visual resource areas	Projects within/adjacent must meet visual resource standards.	§ 18.37.015
Parking plan	Required with new development, added floor area, or intensification.	§ 18.07.030(D)
Landscaping plan	Required for new construction or extensive remodel; must meet City water‑efficient program.	§ 18.07.030(E)
Mechanical/equipment screening	Screen from public rights‑of‑way; perforated screens allowed if equipment remains hidden.	§ 18.08.030
Noise at R/OS edges	Day: 60/70/80 dBA; Night: 55/65/75 dBA at property line depending on duration.	§ 18.07.030(C)
Reflective glass	Highly reflective glass not to exceed 20% of street‑visible facade unless no significant glare is proven.	§ 18.08.030(O)
Lighting	Functional, subtle, architecturally compatible.	§ 18.37.060
Signs	Must meet Title 15/18 sign rules; new signs require approval.	§ 18.07.030(F); § 18.37.060
Underground utilities	Required in new development; also within commercial sites unless infeasible.	§ 18.37.060; § 18.07.030(L)

Checklist

Confirm if your scope triggers City design review before building permits (§ 18.06.080(C); § 18.07.060(C); § 18.08.060(C)). Verify thresholds with the jurisdiction.
Identify zoning district(s) from the adopted map and applicable development standards (§ 18.01.025).
Prepare a site plan, architectural elevations, and materials/colors consistent with the district’s character (§ 18.37.015; § 18.37.060).
Provide a parking plan if new floor area, new development, or use intensification is proposed (§ 18.07.030(D)).
Provide a landscaping and screening plan for new construction or extensive remodels (§ 18.07.030(E)).
Show screening for rooftop/ground mechanical equipment and utility meters (§ 18.08.030).
Demonstrate compliance with noise and glare limits (dBA table; reflective glass ≤ 20% unless justified) (§ 18.07.030(C); § 18.08.030(O)).
Specify exterior lighting that is functional, subtle, and architecturally compatible (§ 18.37.060).
Confirm utilities are undergrounded as required (§ 18.37.060; § 18.07.030(L)).
Route signs for review, ensuring conformance with signage rules (§ 18.07.030(F); § 18.37.060).
If adding an ADU, align with Hawthorne ADUs (§ 18.07.030(J)).
If extending nonconformities or needing relief, coordinate nonconforming uses and variances (§ 18.06.080(B); § 18.08.060(B)).
If within/adjacent to visual resource areas, address applicable standards (§ 18.37.015).

Risks & Ambiguities

Issue	Why it matters	What to verify
Unstated thresholds for “when design review is required”	Determines whether your permit can be issued; affects timeline and submittals.	Ask Planning whether your specific scope triggers design review under § 18.06.080(C)/§ 18.08.060(C).
Visual resource area boundaries/criteria	Triggers added findings/standards.	Confirm mapping and standards applicability under § 18.37.015.
“Extensive remodel” definition	Drives whether a landscaping plan is mandatory.	Seek staff interpretation for § 18.07.030(E).
Parking plan trigger for “intensification”	Impacts design and site circulation.	Document how your use changes affect parking per § 18.07.030(D).
Reflective glass calculation method	Affects facade material selection.	Confirm how the 20% cap is measured per § 18.08.030(O).
Undergrounding feasibility exceptions	May impact utility design and costs.	Clarify feasibility determination under § 18.07.030(L) and citywide § 18.37.060.
Sign review routing	Avoids post-installation corrections.	Whether Community Development Director or Planning Commission will review under § 18.07.030(F).
Buffer wall/fence requirements at mixed edges	Impacts edge design and privacy mitigation.	Apply § 18.07.030(G)(4) where nonresidential abuts ground-floor residential.

Information Gaps

Explicit list of projects requiring design review, submittal contents, and approval timelines: Not found in source materials.
District-by-district permitted uses and numeric dimensional standards (setbacks, height, FAR, lot coverage): Not found in source materials.
Visual resource standards text, map, and scenic corridor criteria: Not found in source materials.
Downtown (C‑D), Commercial–Residential (C‑R), Visitor‑Serving (C‑VS), and other district-specific design guidelines: Not found in source materials.
PUD‑specific design criteria beyond amendment procedures: Not found in source materials.

Plain-English Summary

In Hawthorne, most development—including additions—goes through design review by City planning staff and the Planning Commission. They’ll check your plans for parking layout, landscaping, screening of equipment, subtle/appropriate lighting, sign compliance, noise at property lines, glare limits on glass, and whether you’re undergrounding utilities where required. If you’re in a mapped visual resource area, expect added scrutiny of views and streetscape.

Source References

§ 18.01.015 (District designations). https://ecode360.com/HA4470
§ 18.01.025 (Adoption of zoning district map). https://ecode360.com/HA4470
§ 18.02.040 (Definitions). https://ecode360.com/HA4470
§ 18.06.010 (Residential districts purpose/intent). https://ecode360.com/HA4470
§ 18.06.080 (Permits and plan review; architectural and site plan review). https://ecode360.com/HA4470
§ 18.07.030 (General development standards: parking, landscaping, fences, noise, signs, underground utilities). https://ecode360.com/HA4470
§ 18.07.060 (Required permits and plan review; design review reference). https://ecode360.com/HA4470
§ 18.08.030 (Commercial design/performance; screening; glare; resource standards; design review clause). https://ecode360.com/HA4470
§ 18.08.060 (Required permits and plan review; design review reference). https://ecode360.com/HA4470
§ 18.16.020 (PUD amendment required for conflicting later phases). https://ecode360.com/HA4470
§ 18.37.015 (Applicability; review by Director/Commission; visual resource areas). https://ecode360.com/HA4470
§ 18.37.060 (Utilities underground; lighting; signs). https://ecode360.com/HA4470
§ 18.42.160 (Compliance/enforcement context). https://ecode360.com/HA4470

Sources

Source passages

Hawthorne Zoning Code (§ 18.06.080) Medium relevance
Hawthorne Zoning Code (§ 18.37.015) Medium relevance
Hawthorne Zoning Code (§ 18.42.160) Medium relevance
Hawthorne Zoning Code (§ 18.07.030) Medium relevance
Hawthorne Zoning Code (§ 18.08.060) Medium relevance
Hawthorne Zoning Code (§ 18.16.020) Medium relevance
Hawthorne Zoning Code (§ 18.37.060) Medium relevance
Hawthorne Zoning Code (§ 18.01.025) Medium relevance
Hawthorne Zoning Code (§ 18.07.060) Medium relevance
Hawthorne Zoning Code (§ 18.01.015) Medium relevance
Hawthorne Zoning Code (§ 18.08.030) Medium relevance
Hawthorne Zoning Code (§ 18.06.010) Medium relevance

Cited sections

§ 18.01.015 (District designations). (§ 18.01.015)

Official Hawthorne code library

Frequently asked questions

Do I need design review for a home addition in Hawthorne?

Yes. The code states that “development projects, including additions and remodeling,” are subject to review by the Community Development Director and Planning Commission, with design standards applied citywide (§ 18.37.015). A building permit cannot be issued until any required architectural and site/design review is completed (§ 18.06.080(C)).

What does Hawthorne look at during design review?

Expect checks for parking layout, landscaping compliance, screening of mechanical equipment, limits on noise and glare, subtle/compatible lighting, and sign conformity (§ 18.07.030(D), (E), (F), (G), (C); § 18.08.030(O); § 18.37.060). Projects near visual resource areas must also meet visual resource standards (§ 18.37.015).

Who decides my design review—staff or the Planning Commission?

Both may be involved: the Community Development Director and the Planning Commission review development projects, and they may consider advisory committee input (§ 18.37.015). Confirm your decision-maker at intake based on scope and district.

Are there special standards if my site is in a visual resource area?

Yes. Projects within or adjacent to visual resource areas must meet the City’s visual resource standards in addition to other design criteria (§ 18.37.015). Verify whether your parcel is mapped within these areas and which standards apply.

Do I need a parking plan for design review?

If you’re proposing new development, adding floor area, or intensifying a use, a parking plan is required and reviewed for conformance with parking standards (§ 18.07.030(D)). Include stall/aisle dimensions, locations, and any shared or adjusted counts for the use.

How much reflective glass can I use on a facade?

Mirrors or highly reflective glass may not cover more than 20% of the street-visible building surface unless you demonstrate no significant glare or hazard (§ 18.08.030(O)). Coordinate early with the City if you plan to exceed this with a technical study.

Will my exterior equipment need to be screened?

Yes. Mechanical equipment and utility meters must be screened from view from public rights-of-way; perforated screening is allowed if the equipment remains hidden (§ 18.08.030). Show screening elevations and materials in your submittal.

What fence or wall limits does design review apply in front yards?

A solid wall or fence within 15 feet of a street property line cannot exceed 3 feet; up to 4 feet is allowed if at least 50% open, subject to safety/visibility findings (§ 18.07.030(G)(3)). Staff may set a lower limit to protect visibility or avoid sign obstruction.

What noise limits apply at the property line?

Where a lot borders an R, OS, UR or OSR district, daytime limits are 60/70/80 dBA depending on duration, and nighttime limits are 55/65/75 dBA (§ 18.07.030(C)). Include noise mitigation if your use/equipment could exceed these thresholds.

How do variances and nonconforming conditions interact with design review?

If your project cannot meet development standards or would extend a nonconforming condition, a variance/exception is required in addition to design review (§ 18.06.080(B); § 18.08.060(B)). Coordinate early to avoid redesigns and delays.

General information, not legal advice.

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