Local zoning · Cudahy

Cudahy — Nonconforming Uses

Nonconforming Uses under the Cudahy local zoning and planning code, with the controlling citations.

Last reviewed: July 6, 2026

Overview

Cudahy regulates “nonconforming” uses, structures, and lots in Title 20 Zoning, primarily in Chapter 20.80 Nonconforming Buildings, Structures, and Uses. In short: a lawful nonconforming use may continue, but expansion is tightly limited, and rights can terminate after discontinuance or on a fixed abatement schedule. Special rules address limited repair, minor alterations, parking shortfalls, damage and reconstruction, public uses, and extensions of time by the Planning Commission (§ 20.80.010; § 20.80.020).

Most important: If a legal nonconforming use stops for six consecutive months, its nonconforming status terminates (§ 20.80.020(B)(2)).

What “nonconforming” means in Cudahy

A “legal nonconforming use/structure/lot” is one that was lawful when established but no longer meets current zoning regulations (§ 20.88.150).
The code confirms prior legal nonconforming statuses continue under the new Title 20 (§ 20.04.010(K) Continuation of Existing Nonconforming Uses).

Core rules that apply citywide

Continuation: A legal nonconforming use may continue if you do not enlarge the area, space, or volume it occupies (§ 20.80.010(A)). Ordinary repairs up to 50% of the current assessed value are allowed (§ 20.80.010(B)).
Limited additions and changes:
- Residential uses that are nonconforming only to off-street parking may add to dwelling units without adding parking if no new dwellings are created and the addition does not occupy the only feasible garage/carport location (§ 20.80.010(C)(2); see also Cudahy Parking).
- Nonresidential uses that are nonconforming to parking may expand if they provide only the additional spaces needed for the expansion per Chapter 20.64 (§ 20.80.010(C)(3)).
- Minor alterations that do not increase the degree of nonconformity are allowed; up to 25% floor area expansion may be allowed with a Conditional Use Permit (§ 20.80.010(C)(4)).
Damage and reconstruction: A damaged legal nonconforming structure may be rebuilt if the reconstruction cost does not exceed 1.5× the assessed value, work starts within one year, and rebuilding does not extend any termination date (§ 20.80.010(D)).
Structures under construction: A structure with a valid building permit as of the effective date may be completed per the approved plans if construction starts within 180 days and proceeds diligently (§ 20.80.010(E)).
While a nonconforming use exists, adding a new use on the lot is tightly constrained so that the site can still be divided into conforming parcels later (§ 20.80.010(F)).
Substitution: You may change a nonconforming use that fails only “standards of development” to another permitted use that also fails those standards if the City finds the new use is not more detrimental; the original termination date still applies (§ 20.80.010(D)).
Public uses and utilities: Existing public uses may be extended within the original site if required parking is protected (§ 20.80.010(E)), and public utilities may modernize, repair, and replace without triggering termination so long as there is no change of use nor enlargement of used areas (§ 20.80.010(G)).
Termination events and abatement periods:
- Immediate termination if you enlarge the nonconformity or change to another nonconforming use (§ 20.80.020(A)).
- Termination by discontinuance for six months (§ 20.80.020(B)(2)).
- Termination by operation of law, including fixed abatement periods:
  - General use permitted but out of development standards: 6 months.
  - Unimproved property: 1 year.
  - Unimproved w/ structures not requiring a building permit: 3 years.
  - Unimproved w/ structures under 100 sq ft: 3 years.
  - Legal nonconforming use in a structure suitable for a permitted use: 5 years.
  - Other structures: per Table 20.80-1 base period (e.g., stores/factories 25 years; apartments/offices in fire-resistive structures 50–55 years; theaters 60 years) (§ 20.80.020(C) & Table 20.80-1).
Extensions, revocation, appeals:
- Planning Commission may extend time if otherwise-insufficient amortization would occur; conditions may be imposed; appeal rights apply (§ 20.80.010(H), referencing § 20.84.100, § 20.84.120, § 20.84.160).
- A legal nonconforming use may be revoked after a noticed hearing if, among other findings, it violates law or is detrimental to public health/safety/welfare (§ 20.80.010(F)).
Signs: outdoor advertising signs are addressed in § 20.72.120 by cross-reference in § 20.80.020(C)(5); nonconforming signs face specific removal triggers in Chapter 20.72 (see Cudahy Signage).

How nonconforming rules interact with Cudahy’s districts

Use and dimensional context matters for amortization schedules, substitution options, and feasibility of conversion to conforming status. For district purposes and typical allowances, see also Cudahy Zoning, Cudahy Land Use, and Cudahy Development Standards.

LDR (Low-Density Residential)

Purpose/character: Detached residential neighborhoods.
Typical permitted uses: Single-family, duplex/triplex, multifamily; ADUs are permitted (§ 20.16 Table 20.16-1). See Cudahy ADUs.
Key dimensional standards: Not found in retrieved materials.
Where it applies: Verify with the jurisdiction (zoning map).

Practical nonconforming note: Additions to dwellings that are only nonconforming to parking can proceed without adding spaces if conditions in § 20.80.010(C)(2) are met (coordinate early with Cudahy Parking).

MDR (Medium-Density Residential)

Purpose/character: Moderate-density housing types.
Typical permitted uses: Single-family, duplex/triplex, multifamily; ADUs permitted (§ 20.16 Table 20.16-1).
Key dimensional standards: Not found in retrieved materials.
Where it applies: Verify with the jurisdiction.

Nonconforming tip: The six-month discontinuance rule applies regardless of density (§ 20.80.020(B)(2)).

HDR (High-Density Residential)

Purpose/character: Higher-density multifamily.
Typical permitted uses: Multifamily, SRO, ADUs (§ 20.16 Table 20.16-1).
Key dimensional standards: Not found in retrieved materials.
Where it applies: Verify with the jurisdiction.

Conversion path: Where a building form suits a permitted residential use, the code’s five-year abatement for a nonconforming use “housed in a structure designed or suitable to serve a permitted use” may apply (§ 20.80.020(C)(6)).

NC (Neighborhood Commercial)

Purpose/character: Local-serving retail/services.
Typical permitted uses: Restaurants (P), medical/dental offices (P), some education uses not typical; details in Table 20.20-1 (NC column).
Key dimensional standards: Not found in retrieved materials.
Where it applies: Verify with the jurisdiction.

Nonconforming tip: Storefronts may be good candidates for substitution to another permitted use that still fails “standards of development” if the new use is not more detrimental (§ 20.80.010(D)).

Ent (Entertainment)

Purpose/character: Entertainment-oriented commercial (inferred from table heading; full title not found).
Typical permitted uses: Restaurants (P), bars/lounges (CUP), cannabis retailer (P) with separate business permits—see Table 20.20-1 (Ent column).
Key dimensional standards: Not found in retrieved materials.
Where it applies: Verify with the jurisdiction.

Nonconforming tip: Expansions of a nonresidential use nonconforming to parking require providing parking just for the expansion (§ 20.80.010(C)(3)).

LI (Light Industrial)

Purpose/character: Light manufacturing and assembly.
Typical permitted uses: Laboratories (P), light industrial (P or CUP depending on subcategory), restaurants (P) per Table 20.20-1 (LI column).
Key dimensional standards: Not found in retrieved materials.
Where it applies: Verify with the jurisdiction.

Amortization note: See Table 20.80-1 base periods for industrial structures (e.g., 40–50 years depending on type) (§ 20.80.020(C) & Table 20.80-1).

I–Ind (Industrial)

Purpose/character: General or heavy industrial (abbreviated “I–Ind” in Table 20.20-1).
Typical permitted uses: Heavy industrial (CUP), warehouses (varies) per Table 20.20-1 (I–Ind column).
Key dimensional standards: Not found in retrieved materials.
Where it applies: Verify with the jurisdiction.

Nonconforming tip: Consider feasibility of conversion where a structure type’s base amortization period is approaching (§ 20.80.020(C) & Table 20.80-1).

CMU (Commercial Mixed-Use)

Purpose/character: Pedestrian-oriented hub with retail, office, limited auto services, mixed-use, and residential (§ 20.28.010(A)).
Typical permitted uses: Restaurants (P), business/professional offices (P), many retail/service uses; ground-floor residential limited on Atlantic Avenue; see Table 20.28-1 (§ 20.28.020, Table 20.28-1).
Key dimensional standards: Examples from Table 20.28-2 include FAR max 1.5 (mixed-use), residential density 20–40 du/ac, 0–10 ft rear yard (ground-floor residential: min 10 ft), and height up to 4 stories (+2 in some mixed-use contexts) (§ 20.28.030, Table 20.28-2; § 20.28.050).
Where it applies: Commercial corridors including Atlantic Avenue (verify mapped extents).

Compatibility note: Where CMU adjoins residential, a minimum 10 ft setback and a 6 ft masonry wall plus landscape buffer are required (§ 20.28.050(D)); see Cudahy Landscaping and Screening.

CivicMU (Civic Mixed-Use)

Purpose/character: Commercial, residential, and civic activities with prominent public spaces (§ 20.28.010(B)).
Typical permitted uses: Similar to CMU with some distinctions in Table 20.28-1 (§ 20.28.020).
Key dimensional standards: FAR up to 1.5 (mixed-use), density 20–40 du/ac, and building height up to 4–5 stories per Table 20.28-2 (§ 20.28.030).
Where it applies: Civic center areas (verify mapped extents).

Nonconforming note: Mixed-use buildings cannot be converted entirely to single-use after approval (§ 20.28.020(H)).

Parks, Schools, and Los Angeles River Zones

Purpose/character: Preserve educational, recreational, and open space; regulate LA River–adjacent uses (§ 20.24.010).
Typical permitted uses: Public parks and facilities; LA River zone allows open space and water facilities (§ 20.24.020; LA River uses).
Key dimensional standards: Not found in retrieved materials.
Where it applies: Mapped park/school properties and the LA River corridor.

Public uses note: Existing public uses may expand on their original site without a variance if parking is preserved (§ 20.80.010(E)).

Urban Agriculture Overlay Zone

Purpose/character: Overlay with cannabis and sensitive-use siting rules; not a base zone (§ 20.32).
Typical implications: New K–12 schools, day care centers, youth centers, and places of religious assembly are prohibited within and within 600 ft of the overlay; existing ones become legal nonconforming and remain “sensitive uses” for cannabis siting (§ 20.32.090). See Cudahy Overlay Districts.
Key dimensional standards: Not found in retrieved materials.
Where it applies: As mapped in the overlay; verify with the jurisdiction.

Table — Key nonconforming rules you’ll actually use

Topic	Rule of thumb	Applies to	Code Reference
Keep using it	You may continue a legal nonconforming use, but cannot enlarge the area/volume it occupies	All zones	§ 20.80.010(A)
Routine repairs	Ordinary repairs/maintenance up to 50% of current assessed value are allowed	Structures	§ 20.80.010(B)
Minor expansions	Up to 25% floor area expansion may be allowed with a CUP if nonconformity doesn’t increase	Uses/structures	§ 20.80.010(C)(4)
Parking workarounds (homes)	Residential additions don’t trigger new parking if no new dwellings and not in the only feasible garage/carport location	Residential	§ 20.80.010(C)(2); see parking
Parking workarounds (nonres.)	Expand if you add only the parking needed for the expansion under Ch. 20.64	Nonresidential	§ 20.80.010(C)(3)
Damage/rebuild	Rebuild if cost ≤ 1.5× assessed value; start within 1 year; no extension of termination date	Structures	§ 20.80.010(D)
Stop using it	Six months of discontinuance ends the right to operate the nonconforming use	All zones	§ 20.80.020(B)(2)
Change to conforming	Changing a lawful nonconforming use to a conforming use ends nonconforming status	All zones	§ 20.80.020(B)(1)
Abatement clocks	Fixed periods to remove/convert based on site/structure (e.g., stores/factories 25 yrs; theaters 60 yrs)	Uses/structures	§ 20.80.020(C) & Table 20.80-1
Substitute use	You may swap to another permitted use that still misses “standards of development” if not more detrimental; no new time clock	All zones	§ 20.80.010(D)
Extensions	Planning Commission may grant extra time where amortization is insufficient; appeals allowed	All zones	§ 20.80.010(H) (refs. § 20.84.100, § 20.84.120, § 20.84.160)
Public uses/utilities	Existing public uses and utilities have tailored allowances to continue/modernize	All zones	§ 20.80.010(E), (G)

Checklist

Confirm the use/structure/lot was lawful when established (legal nonconforming per § 20.88.150).
Verify no enlargement of the nonconforming area unless allowed under § 20.80.010(C).
If residential and parking-nonconforming, check that the addition meets § 20.80.010(C)(2) and coordinate with parking.
For nonresidential parking shortfalls, provide only the additional parking required for the expansion (§ 20.80.010(C)(3)).
If seeking up to 25% expansion, prepare a CUP application; expect design review and conditions (§ 20.80.010(C)(4)).
If damaged, assemble valuation evidence to show the 1.5× assessed-value cap; start within one year (§ 20.80.010(D)). Consider California Building Standards Code for construction compliance.
Track the six-month activity rule and any fixed abatement periods that apply (§ 20.80.020(B)–(C), Table 20.80-1).
For time extensions, file before termination (or within three months of City notice) and prepare amortization evidence (§ 20.80.010(H)).
If in an overlay (e.g., Urban Agriculture), check overlay-specific nonconforming implications; see Cudahy Overlay Districts (§ 20.32.090).
If signage is nonconforming, review Chapter 20.72 triggers and Cudahy Signage.

Risks & Ambiguities

Issue	Why it matters	What to verify
Was it ever “legal”?	Only legal nonconforming uses are protected (§ 20.88.150).	Original permits/records; City confirmation.
Counting “six months”	A mistaken lull can terminate rights (§ 20.80.020(B)(2)).	Operations logs, utility bills, business license activity.
“Minor” vs. “expansion”	Exceeding 25% or intensifying the use can trigger denial (§ 20.80.010(C)(4)).	Scope drawings; consult staff early.
Parking constraints	Residential vs. nonresidential rules differ (§ 20.80.010(C)(2)–(3)).	Apply the right rule; coordinate with parking.
Abatement clock	The Table 20.80-1 periods vary by structure type/use (§ 20.80.020(C)).	Identify your structure class; calculate remaining time.
Overlay interactions	Urban Agriculture Overlay makes some existing “sensitive uses” legal nonconforming (§ 20.32.090).	Map proximity to overlay; cannabis-siting rules.
Public uses/utilities	Special allowances may apply (§ 20.80.010(E), (G)).	Whether your use qualifies as “public use” or a utility.
Signs and fencing	Separate removal/maintenance triggers apply in Ch. 20.72; fences reference Ch. 20.80.	Sign/fence status under signage; case-by-case.

Plain-English Summary

If your use or building was legal when created but no longer fits Cudahy’s current zoning, you can usually keep using it—but you can’t expand it much, you must be careful not to stop using it for six months, and there may be a built-in deadline to convert or remove it. Cudahy allows small fixes, limited expansions, and in some cases extra time, but expects steady movement toward conformity over time (§ 20.80.010; § 20.80.020).

Source References

§ 20.80.010 Application of regulations (Continuation; Repairs; Additions; Substitution; Public uses; Revocation; Public utilities; Extensions) — Title 20 Zoning.
§ 20.80.020 Termination of legal nonconforming uses (Violations; Discontinuance; Abatement by operation of law; Table 20.80-1) — Title 20 Zoning.
§ 20.88.150 Definitions (Nonconforming improvement/lot/structure/use).
§ 20.04.010(F–K) General provisions (Continuation of existing nonconforming uses).
§ 20.32.090 Urban Agriculture Overlay — legal nonconforming sensitive uses.
§ 20.28.010–.030, .050 Mixed-Use zones (CMU, CivicMU) intent, uses, standards.
§ 20.20 Table 20.20-1 Commercial/Industrial zones (NC, Ent, I–Ind, LI) permitted uses.
§ 20.16 Table 20.16-1 Residential zones (LDR, MDR, HDR) permitted uses.
§ 20.24 Parks, Schools, and Los Angeles River zones intent and uses.
§ 20.72 Sign regulations (nonconforming signs; referenced in § 20.80.020(C)(5)).
Related topic pages: Cudahy zoning & planning overview, Cudahy Zoning, Cudahy Land Use, Cudahy Development Standards, Cudahy Parking, Cudahy Design Review, Cudahy Overlay Districts, Cudahy Signage, Cudahy Variances and Exceptions, Cudahy ADUs, California Building Standards Code

Information Gaps

Specific dimensional standards (setbacks, height, lot coverage) for LDR/MDR/HDR and NC/Ent/I–Ind/LI: Not found in retrieved materials.
Exact mapped boundaries of each zone/overlay: Not found in retrieved materials.
Full text of § 20.80.030 (listed in chapter sections) was not retrieved.
Detailed procedures/criteria in § 20.84.100/.120/.160 beyond the cross-references: Not found in retrieved materials.

Sources

Retrieved passages

CMC § 20.84.100 (Chapter 20.84) High relevance
CMC § 20.72.120 (Title 20) High relevance
CMC § 764 (Title 20) High relevance
CMC § 764 (Chapter 20.64) High relevance
CMC § 20.84.100 (chapter pertaining) High relevance
Cudahy Zoning Code (Title 20) High relevance
Cudahy Zoning Code (§ 10) High relevance
Cudahy Zoning Code (Title 20) High relevance
CMC § 5.30.050 (Chapter 20.80) Medium relevance
CMC § 764 (title shall) Medium relevance
CMC § 376 (Title 20) Medium relevance
CMC § 5.30.050 (Title 20) Medium relevance
CMC § 20.08.050 (Title 20) Medium relevance
CMC § 764 (Chapter 20.84) Medium relevance
CMC § 4 (§ 4) Medium relevance

Cited sections

§ 20.80.010 Application of regulations (Continuation; Repairs; Additions; Substitution; Public uses; Revocation; Public utilities; Extensions) — Title 20 Zoning. (§ 20.80.010)
§ 20.80.020 Termination of legal nonconforming uses (Violations; Discontinuance; Abatement by operation of law; Table 20.80-1) — Title 20 Zoning. (§ 20.80.020)
§ 20.88.150 Definitions (Nonconforming improvement/lot/structure/use). (§ 20.88.150)
§ 20.04.010(F–K) General provisions (Continuation of existing nonconforming uses). (§ 20.04.010)
§ 20.32.090 Urban Agriculture Overlay — legal nonconforming sensitive uses. (§ 20.32.090)
§ 20.28.010–.030, .050 Mixed-Use zones (CMU, CivicMU) intent, uses, standards. (§ 20.28.010)
§ 20.20 Table 20.20-1 Commercial/Industrial zones (NC, Ent, I–Ind, LI) permitted uses. (§ 20.20)
§ 20.16 Table 20.16-1 Residential zones (LDR, MDR, HDR) permitted uses. (§ 20.16)
§ 20.24 Parks, Schools, and Los Angeles River zones intent and uses. (§ 20.24)
§ 20.72 Sign regulations (nonconforming signs; referenced in § 20.80.020(C)(5)). (§ 20.72)
Related topic pages: Cudahy zoning & planning overview, Cudahy Zoning, Cudahy Land Use, Cudahy Development Standards, Cudahy Parking, Cudahy Design Review, Cudahy Overlay Districts, Cudahy Signage, Cudahy Variances and Exceptions, Cudahy ADUs, California Building Standards Code
Cudahy_ZoningCode.md

Frequently asked questions

How long can a nonconforming use continue in Cudahy?

Indefinitely if it remains lawful, is not enlarged beyond its existing area, and is not discontinued for six or more consecutive months. Termination can also occur by operation of law under fixed abatement periods based on structure type (§ 20.80.010(A); § 20.80.020(B)–(C)).

Can I expand a nonconforming business if I add the required parking?

Possibly. Nonresidential uses that are nonconforming to parking may expand if they provide the additional off-street parking required for the expansion under Chapter 20.64 (§ 20.80.010(C)(3)). Coordinate early with Cudahy Parking.

What if my nonconforming building is damaged by fire?

You may rebuild if the reconstruction cost does not exceed 1.5 times the structure’s assessed value, you start within one year, and you don’t extend any termination date (§ 20.80.010(D)). Construction must comply with the California Building Standards Code.

Can I swap one nonconforming use for another?

Only in a narrow case: if the use is nonconforming solely because it misses current “standards of development,” you may substitute to another permitted use that also misses those standards, if it’s not more detrimental; the original termination date still applies (§ 20.80.010(D)).

How do extensions of time work for amortization/abatement?

The owner may apply to the Planning Commission before termination (or within three months after City notice). The Commission may grant an extension if the otherwise-required termination period does not allow reasonable amortization of the fixed investment (§ 20.80.010(H), referencing § 20.84.100/.120/.160).

Are nonconforming signs treated differently?

Yes. Outdoor advertising signs and structures are handled in Chapter 20.72; certain nonconforming signs must be removed under specific triggers (§ 20.80.020(C)(5); Chapter 20.72). See Cudahy Signage.

Does the Urban Agriculture Overlay change nonconforming status?

It can. Within or near the overlay, certain existing sensitive uses (e.g., K–12 schools, day care centers) are deemed legal nonconforming for siting purposes and remain sensitive uses for cannabis retailer review (§ 20.32.090). See Cudahy Overlay Districts.

Do I need design review for modifications to a nonconforming building?

If your project requires a development review/CUP, design review findings can apply; approval does not require unrelated existing improvements to be altered unless directly affected or the new work exceeds 50% of existing value (§ 20.84.220(B)).

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