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Azusa — Nonconforming Uses

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

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Last reviewed: July 3, 2026

Overview

This page summarizes how the City of Azusa regulates nonconforming uses, nonconforming structures, and nonconforming parcels under the Azusa Development Code (Title 88). It is an ordinance-focused reference: what the code requires, how the city enforces amortization/abatement, and how the rules differ by district. For practice-level implications (e.g., permits, construction/Title 24 work, tenant law) verify with the city; those topics live on other pages.

Important: This guidance cites the Azusa Development Code provisions that control nonconformities (not state building codes or housing statutes). See the source list at the end for the controlling §§ and the file citations.

What the code says (big-picture)

  • Nonconformities are allowed to continue only in limited ways; the Code's overall intent is to discourage long-term continuance and to bring properties into compliance when feasible. § 88.54.010 establishes purpose and intent.
  • Owners may continue a lawful nonconforming use, but they generally may not enlarge, extend, move, or change it except to reduce nonconformity. § 88.54.020 (Nonconforming Uses) spells this out.
  • Nonconforming structures may be repaired or altered up to a monetary threshold; above that threshold a full code-conformance requirement may apply. See § 88.54.020.B (50% rule).
  • The Code contains a specific amortization schedule and discrete amortization periods for certain uses (e.g., adult businesses, auto wrecking, TOD area nonconformities). § 88.54.100 lists amortization periods and notice/appeal procedure.
  • Nonconforming parcels may still be buildable if they meet historic or technical tests (recorded deed, approved subdivision, or variance/lot-line adjustment). § 88.54.050 details this.

Note: The Code treats some districts and special-plan areas (for example the TOD Specific Plan District) differently; where the code delegates to a specific plan, refer to that specific plan for detailed standards. § 88.24.005 and the TOD-specific provisions explain this.

District-by-district (how nonconforming rules apply across Azusa’s districts)

Below are the districts that are directly implicated by the nonconforming provisions or that are repeatedly referenced in the nonconforming rules. Each subsection pulls the district purpose/uses/standards from Article 2 / district chapters and ties them to the nonconforming rules.

Note on scope: The Development Code contains many district and neighborhood designations (for example, the TOD subdistricts DG, DD, DX, DR, DT, DC). This summary highlights the districts that the nonconforming chapter calls out or for which the Development Code provides immediately relevant dimensional/use standards. For full permitted-use tables and all districts, see Tables 2-2/2-3/2-4 in Article 2.

TOD Specific Plan District (Transit-Oriented Development)

  • Purpose: Implements Azusa’s Transit-Oriented Development vision; detailed standards are in the Azusa TOD Specific Plan. § 88.21.060.
  • Typical permitted uses: Mixed-use, higher-density residential, ground-floor retail and transit-supporting uses per the Specific Plan (see Specific Plan for allowed uses and TOD subdistrict rules). § 88.24.005 directs readers to the Specific Plan for subdistricts DG/DD/DX/DR/DT/DC.
  • Key dimensional standards (examples): downtown/TOD building height limits and zero-front-setback overlay exceptions appear in district/overlay chapters and the Specific Plan; the Code delegates parking and many development standards to the Specific Plan for parcels within the TOD. See § 88.36.050.B (TOD parking) and the Specific Plan provisions.
  • Nonconforming treatment: nonconforming land uses located in the TOD Specific Plan District are subject to a 20-year amortization period from service of notice. § 88.54.100.A.1.a.
  • Where it applies: the geographic area mapped as the Azusa TOD Specific Plan (refer to the TOD Specific Plan map). § 88.21.060.

Edgewood District (DE)

  • Purpose: District-level plan for the Edgewood retail/center area; see district chapter for design intent. Chapter 88.24 / Table 2-2 shows DE uses.
  • Typical permitted uses: Retail, business services, some residential uses in mixed conditions—consult Table 2-2 for “P/MUP/UP” designations.
  • Key dimensional standards: district-specific setbacks and signage rules are in the district chapters and overlay sections; consult district chapter for building placement. (Development standards are in Article 2 and Article 3.) Not all exact numeric setbacks for DE were found in the retrieved excerpts — verify with the applicable district section. Verify with the jurisdiction.
  • Nonconforming treatment: standard nonconforming rules apply (continuation subject to § 88.54 restrictions; additions/alterations follow the 50% rule; amortization procedure where applicable). § 88.54.020 and § 88.54.100.

West End Industrial District (DW, DWL)

  • Purpose: Industrial and light-industrial employment areas; Table 2-2 lists detailed uses by subzone DW and DWL.
  • Typical permitted uses: manufacturing/processing (light/medium), contractor yards (with MUP), recycling facilities with conditional controls; medical/office uses vary by subzone — see Table 2-2.
  • Key dimensional standards: minimum parcel size shown for DW/DWL (e.g., 6,000 sf minimum area; 50 ft minimum width appears in parcel-size table). § 88.24 (parcel size table).
  • Nonconforming treatment: special amortization periods apply to certain industrial land uses (e.g., auto wrecking/scrap yards 20 years; contractor storage yards 20 years). See the amortization schedule in § 88.54.100.A.1.

Institutional / School (INS)

  • Purpose: For campus-like or institutional uses (schools, APU campus, etc.). CHAPTER 88.28 covers Special Purpose Zones including INS and references specific plans (for APU see its Specific Plan).
  • Typical permitted uses: institutions, schools, certain campus-support uses; Table 2-series lists use permits (see Article 2).
  • Key dimensional standards: subject to special-purpose zone site-planning requirements and any applicable specific plan. See Sections for APU Specific Plan.
  • Nonconforming treatment: Azusa Pacific University property designated INS is explicitly exempt from Chapter 88.54 regulations until adoption of a specific plan for the APU holdings (i.e., the nonconforming chapter does not apply to APU-INS during the pre-specific-plan period). § 88.54.040.C.

Neighborhood / Residential (NG1/NG2/NG3; single-family / multi-family)

  • Purpose: Neighborhood-level residential standards appear throughout Article 2 and Chapter 88.22. The Code’s district/neighborhood chapters describe placement, setbacks, and frontages.
  • Typical permitted uses: single-family, multi-family, accessory dwelling units (ADUs), home occupations (subject to rules). See Article 2 and the ADU section § 88.42.190.
  • Key dimensional standards: neighborhood-specific setback rules and frontage types are in the neighborhood chapters (examples in 88.26 and 88.22). See Chapter 88.26 (corridors) and neighborhood chapters for numeric limits.
  • Nonconforming treatment for dwellings: residential buildings destroyed by involuntary damage may be reconstructed using the same development standards that applied to the damaged structure (e.g., same setbacks/height/density). § 88.54.040.A.1 (residential exemption to some conformance rules).

Quick reference table — most decision-relevant nonconforming items

What it controls Rule or limit (plain) Code reference
Continuing a nonconforming use May continue, be transferred or sold, but may not enlarge, extend, move, or increase the use; change only to reduce nonconformity. § 88.54.020
Additions/repairs to nonconforming structure Work allowed so long as cost (per building permit) ≤ 50 percent of assessed value within any 24-month period; otherwise full conformance required (with residential exception for front/street-side setbacks & street-facing facades). § 88.54.020.B.1–B.1.b
Destroyed structure replacement If destroyed > 75 percent of replacement value (excl. land), replacement must comply with current Code (residential allowed special replacement per § 88.54.040). § 88.54.020.B.2 and § 88.54.040.A.1
Nonconforming parcel legal status Parcel is a legal building site if it was in an approved subdivision, created by recorded deed before zoning amendment, or approved via variance/LLA. § 88.54.050
Amortization (required termination) Varies by use — e.g., TOD site nonconforming land uses: 20 years; adult business: 6 months (subject to adult-use rules/extension); auto wrecking / contractor storage yard: 20 years. The city will serve notice and the owner may appeal. § 88.54.100.A (amortization schedule)
Nonconforming site elements (parking, landscaping) A nonconforming site may remain in use, but any new addition or new structure requires correcting nonconforming site development to current standards. § 88.54.070
Appeals / extensions Owner may appeal amortization period; council may grant extensions for hardship using specified criteria; max extensions differ for Code-vs-previous-Code nonconformities. § 88.54.100.C–F (appeals and extension criteria; extension caps described).

Practical guidance / plain-English synthesis (original)

  • If your business or building was legal under an earlier zoning regime but now violates the current Development Code, you usually can keep operating — but you cannot expand or intensify the nonconforming part. See § 88.54.020.
  • If you want to remodel a nonconforming building, the city permits routine maintenance and smaller repairs. If the permitted work (as shown on the building permit) totals more than 50% of the structure’s assessed value in any 24-month period, the city typically requires you to bring the whole structure into compliance—unless an exception for single‑family dwellings applies. See § 88.54.020.B and § 88.54.040.A.
  • When nonconforming issues involve parking, landscaping, or other site development, adding floor area or building new structures usually triggers a requirement to correct the nonconforming site elements before the permit is issued. See § 88.54.070.
  • Certain disfavored uses receive short amortization periods (for example adult businesses) or district-specific amortization (e.g., 20 years for nonconforming uses inside the TOD Specific Plan area). The city mails notice and records the council’s order if termination is required; you have a right to appeal. See § 88.54.100.
  • ADUs: The ADU rules include a protective provision: Azusa will not refuse an ADU permit because of a nonconforming zoning condition unless that condition threatens health and safety or is implicated by the ADU construction. See the ADU section § 88.42.190 for details. Also consult state ADU law.

Practical cross-checks to run before submitting an application: confirm whether the parcel sits in the TOD Specific Plan District (because of the 20-year rule), whether the use is one of the listed amortized categories (adult business, auto wrecking, contractor yard, etc.), and whether proposed work would push you over the 50% threshold. Use the city's mapping and the TOD Specific Plan to identify district boundaries. Verify with the jurisdiction for parcel‑specific interpretations.

Checklist (what an applicant must satisfy to preserve or alter a nonconforming use/structure)

  • Identify the controlling nonconforming rule(s): nonconforming use, nonconforming structure, or nonconforming parcel (see § 88.54.020/050/070).
  • Confirm whether the parcel is inside the TOD Specific Plan District (amortization and parking rules differ). § 88.54.100.A.1.a and § 88.36.050.B.
  • For proposed repair/alteration, obtain building permit cost estimate and compare to assessed value to check the 50% threshold (see § 88.54.020.B.1.b).
  • If the use received an earlier Use Permit and the new code requires a Use Permit, verify whether the original use permit remains valid (see § 88.54.060).
  • If the city has served a nonconforming notice, calculate your amortization deadline and prepare evidence supporting any extension request (appeal to council). See § 88.54.100.C–F.
  • If the proposal includes changes that affect parking/landscaping, be prepared to correct nonconforming site development as a condition of any addition/new structure (see § 88.54.070). Link your parking plan to the city parking standards.
  • If rebuilding after destruction, document percentage of replacement value destroyed; if > 75% the development must conform (with residential exceptions). § 88.54.020.B.2 and § 88.54.040.A.1.

Risks & Ambiguities

Issue Why it matters What to verify
Amortization period varies by use/district Some uses (adult business) get short amortization; TOD nonconforming uses get 20 years; improper assumption can lead to forced abatement. Confirm the amortization category and calculation start date (service of notice). § 88.54.100
50% repair/addition threshold (valuation) If work exceeds 50% of assessed value in any 24-month period, the city can require full code compliance — unexpected compliance costs. Confirm assessed value metric the County Assessor uses and expected permit valuation methodology with Building Division. § 88.54.020.B.1.b
Destroyed-structure test (75% rule) If damage exceeds 75% of replacement value, rebuilding may require full conformance. Obtain independent replacement-value estimate and document damage; check if dwelling qualifies for the residential exception. § 88.54.020.B.2, § 88.54.040.A.
Nonconforming site items (parking/landscape) Adding floor area often triggers correction of nonconforming site features — may add unexpected scope and cost. Confirm whether proposed work is an “addition” under the Code; check § 88.54.070 and parking rules (link to the city’s parking standards). § 88.54.070, § 88.36.050.
Parcel legal-building-site status Nonconforming parcel may or may not be a legal building site; building permits can be denied if parcel was illegally created. Produce recorded deed, subdivision map, or variance/lot-line adjustment evidence as required by § 88.54.050.
District-specific exemptions (e.g., APU INS exemption) Some special properties (APU) are exempt while a specific plan is pending, which changes enforcement. Verify whether the parcel falls under the APU INS exemption and whether a specific plan has since been adopted. § 88.54.040.C.

Plain-English Summary

Azusa lets lawful older uses and buildings stay, but you can’t expand them or move them; if you repair more than 50% of a building in a 24‑month period or you rebuild after heavy destruction, you’ll likely need to bring it up to current zoning and development standards. Some uses and districts have fixed amortization periods (for example, 20 years for nonconforming uses in the TOD Specific Plan area). Always check whether your parcel is in the TOD, whether a specific amortization schedule applies, and whether proposed work will force site corrections (parking/landscaping) before you file. See §§ 88.54.020, 88.54.050, 88.54.070, and 88.54.100.

Source References

  • Chapter 88.54 — Nonconforming Uses, Structures, and Parcels (purpose, restrictions, amortization, appeals): § 88.54.010–§ 88.54.110.
  • Nonconforming site development (parking/landscape correction on additions/new structures): § 88.54.070.
  • Nonconforming structure repairs and replacements (50% rule; 75% destruction test; seismic/Title 24 retrofits): § 88.54.020.B and § 88.54.020.B.2–3.
  • Exemptions and residential-specific replacements: § 88.54.040.
  • Districts, TOD Specific Plan, and Table 2-2 (district uses and district keys): Chapter 88.24; Table 2-2 and § 88.21.060 (Azusa TOD Specific Plan purpose).
  • Parking rules (TOD and general parking references): § 88.36.050.
  • ADU protections re: nonconforming zoning conditions: § 88.42.190 (ADU section).

Internal site references used in this page (link to related GoCodebook Azusa menu pages):

(Those links are provided so you can jump to related local pages for parking, design review, ADUs and development standards that often interact with nonconforming issues.)

Sources

Retrieved passages

  • Azusa Zoning Code (Chapter 88.40) High relevance
  • Azusa Zoning Code (Section 88.54.100) High relevance
  • Azusa Zoning Code (Section 88.54.100) High relevance
  • Azusa Zoning Code (Section 88.51.070) High relevance
  • Azusa Zoning Code (CHAPTER 88.54.) High relevance
  • Azusa Zoning Code (§ 1B) High relevance
  • CFC § 1B (chapter shall) High relevance
  • CBC § 21 (Section 88.54.040) High relevance
  • Azusa Zoning Code High relevance
  • Azusa Zoning Code (Section 5.22.020) Medium relevance
  • Azusa Zoning Code (§ 1B) Medium relevance
  • Azusa Zoning Code (§ 1) Medium relevance
  • Azusa Zoning Code (Article 2) Medium relevance
  • Azusa Zoning Code (§ 3) Medium relevance
  • Azusa Zoning Code (Article 7) Medium relevance
  • Azusa Zoning Code (chapter is) Medium relevance

Cited sections

Frequently asked questions

How does Azusa define when a nonconforming use “loses” its status?

A nonconforming use loses its protection if the use ceases for one year or more, the structure is moved any distance on the site, or the structure is destroyed (defined as destruction of more than 75% of replacement value, excluding land). See § 88.54.020.A.3.

If my building is nonconforming, how much repair can I do before it must be brought into full compliance?

Normal maintenance and smaller repairs are allowed; but if the cost of work (as shown on the building permit) exceeds 50 percent of the assessed value of the structure within any 24‑month period, the entire structure must be brought into compliance — except limited residential exceptions described in the Code. See § 88.54.020.B.1–B.1.b and § 88.54.040.A.

My nonconforming business wants to expand on the same lot — can I increase the nonconforming area?

No. The Code prohibits enlarging, increasing, or extending a nonconforming use to occupy a greater area than it occupied when it became nonconforming. Changes are allowed only to reduce nonconformity or to remove the use. See § 88.54.020.A.1–A.2.

What happens if the city notifies me my use is to be amortized/abated?

The Director will serve notice describing the property as a nonconformity and state the abatement date; owners may appeal the amortization period to City Council within the specified appeal window; the Council may hold a hearing, grant extension(s) based on listed criteria, and record its decision. See § 88.54.100.B–F.

Are nonconforming parking or landscaping problems treated the same way as building nonconformities?

A site with nonconforming parking, landscaping, or other site development may continue in use, but any approval for an addition or a new structure generally requires correcting the nonconforming site elements to current code. See § 88.54.070. Link to Azusa parking for applicable standards.

Can an ADU be denied because the lot has a nonconforming zoning condition?

Generally Azusa will not deny an ADU or JADU permit solely because of a nonconforming zoning condition, building-code violation, or unpermitted structure that does not threaten public health/safety and is not affected by the ADU construction; see the ADU section § 88.42.190. Verify with the Building/Planning Division for parcel specifics.

If my structure was accidentally destroyed by fire, can I rebuild in the same footprint?

If destroyed involuntarily, a nonconforming single‑family or multi‑family dwelling may be reconstructed using the same development standards that applied to the damaged structure (setbacks, height and density). For nonresidential structures, replacement after destruction beyond 75% of replacement value generally requires conformance. See § 88.54.040.A.1 and § 88.54.020.B.2.

What specific uses have fixed amortization periods in Azusa?

Examples: nonconforming land uses in the TOD Specific Plan District — 20 years; adult businesses — 6 months (subject to Adult Business chapter); auto wrecking/scrap yard — 20 years; contractor’s storage yard — 20 years; outdoor shooting range — 18 months (with potential development agreement replacement). See § 88.54.100.A.1 for the full list and details.

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