Glendora Zoning, Planning & Building Codes

Last reviewed: July 3, 2026

Overview

Glendora’s zoning and land‑use law is codified in Title 21: Zoning of the Glendora Municipal Code; Title 21 states the ordinance's purpose and scope and is the starting point for navigating local rules § 21.01.010 . The city uses conventional zone chapters plus a number of adopted specific plans and overlays (Route 66 SP / SP‑3, Glendora Commercial, Village on the Green, Diamond Ridge, Arboreta, Monrovia Nursery) that provide area‑specific standards and — where adopted — take precedence over the base zoning § 21.10.490 . This page explains how Title 21 is organized, what district families and citywide standards you’ll encounter in practice, how specific plans and overlays work, the local review/permit path, and how key California housing laws (SB 9, ADUs, density bonus) have been implemented or referenced in Glendora’s code.

How Glendora's code is organized

• Title name and purpose: The zoning ordinance is expressly titled Title 21: Zoning and sets out definitions, purposes and the overall structure of the zoning code § 21.01.010 .
• Administration & permits: General administration, definitions, and permit types (including Development Plan Review and Conditional Use Permits) are handled in the administration and permits chapters (e.g., Chapter 21.01 and Chapter 21.02); many specific‑plan reviews defer to Chapter 21.02 for procedural rules § 21.10.430 .
• Zone chapters and appendices: Base zoning (residential, commercial, industrial) is set out in the commercial/industrial and residential chapters (for example § 21.05.010 and § 21.05.030 for commercial and industrial zones) and development tables are compiled in Appendix 21.A (tables A–E) referenced throughout Title 21 .
• Specific plans and overlays: Area or project‑level rules live in separate chapters (for example the Route 66 Corridor specific plan in Chapter 21.10, the Village on the Green plan in Chapter 21.09, Diamond Ridge in Chapter 21.11, Arboreta in Chapter 21.12, and Monrovia Nursery in Chapter 21.13). These chapters explain that when a specific plan applies it “takes precedence” over the general zoning code within its boundaries § 21.10.490 and explain adoption/amendment authority § 21.06.060 .
• Design standards, landscape, parking and technical standards are located in dedicated chapters and cross‑referenced by specific plans (see the citywide landscaping standards § 21.03.015 and parking rules § 21.03.020 and the Route 66 parking rules § 21.10.370). See the city’s site standards and landscape rules for technical design requirements § 21.03.015 and the Route 66 parking section § 21.10.370 .

(If you want to jump into the zoning code viewer, start at the Glendora Zoning main menu.) Glendora Zoning

Zoning district families (citywide + Route 66 SP subdistricts)

• Base commercial/industrial families: C‑1, C‑2, C‑3, CM (commercial) and M‑1, M‑1A, IP (industrial) are named in the code with references to permitted uses and Appendix tables for numeric standards § 21.05.010 and § 21.05.030 .
• Residential families and overlays: Multiple residential zone tables and overlays are applied through the code and appendix tables (single‑family/ multifamily development standards are in Appendix 21.A) — the code points readers to those appendix tables for minimum lot sizes, FAR/coverage and other numeric standards § 21.05.030 .
• Special overlays: Glendora uses overlays such as the Special Height overlay (H) and Mobilehome Park overlay (MHP); the special height overlay explicitly allows taller buildings up to eight stories/80 feet with adjusted setbacks § 21.07.030 .
• Route 66 Corridor specific plan (SP‑3) subdistricts: within the Route 66 plan the city defines a set of subdistricts with their own development tables and intent statements — BG (Barranca Gateway), GCG (Grand Commercial Gateway), TCMU (Town Center Mixed Use), RSC (Route 66 Service Commercial), CRR (Central Route 66 Residential), LHG (Lone Hill Gateway), TCO (Technology/Commerce/Office), plus GRG and GLG gateway subdistricts — each with purpose statements § 21.10.320 and allowed use tables § 21.10.330 .
• Village / CCAP subdistricts: village core subdistricts such as T‑5 and T‑5A define compact mixed‑use standards (zero‑front setbacks on some parcels, FAR and explicit mixed‑use rules) and a local density bonus described in the CCAP text § 21.03.030 / T‑5 (see the CCAP/T‑5 descriptions) .

Key district names and standards are summarized in the Route 66 tables; see the city’s development standards page for the detailed numeric tables. Glendora Land Use Glendora Development Standards

Citywide development standards — the high‑level facts

• Where the specific plan applies, it supplies the primary numeric standards (FAR, setbacks, height, minimum street frontage) and those numbers are enforced in addition to the general code; the Route 66 plan declares its tables the primary standard within the plan area § 21.10.490 .
• Floor area ratios and heights: Route 66 subdistrict base FARs include 0.35 FAR for certain gateway districts and up to 0.50 FAR for selected Gateway/Mixed‑Use areas (see the Route 66 development table) and height caps of 35–45 ft / 2–3 stories depending on subdistrict with explicit “no portion shall exceed 45 feet” notes where applicable § 21.10. (development tables & notes)* .
  • Example: CRR (Central Route 66 Residential) shows 0.30 FAR, 30 du/acre maximum, 15 ft front setback and 45 ft / 3 stories cap in some contexts (Table 6‑2/Route 66 tables) § 21.10. (development tables & notes)* .
• Setbacks & lot frontage: The specific plan tables show common minimums — front building setbacks of 10–20 ft in many gateway/mixed‑use subdistricts, side/rear minimums of 0–15 ft depending on adjacency to residential, and minimum street frontage requirements (100–150 ft) on many higher‑intensity parcels § 21.10. (development tables & notes)* .
• Parking & loading: Citywide off‑street parking standards are in the general code and are cross‑referenced by specific plans; the Route 66 plan has its own parking rules but defers to the Zoning Code's § 21.03.020 for many standards and contains a dedicated Route 66 parking section § 21.10.370 . For a practical guide to on‑site parking rules consult the city’s parking chapter. Glendora Parking
• Landscaping, lighting and screening: Landscape standards (including MWELO compliance) and exterior lighting maximums are required for larger projects and are set out in the general chapters § 21.03.015 (landscape) and lighting rules found across Title 21; specific plans add site palettes and HOA maintenance provisions where applicable § 21.03.015 .
• Design standards and special rules for uses: Many special land uses (equipment rental, drive‑throughs, SROs, medical campuses) are governed by specific use standards in the Route 66 article and by the general use standards sections such as § 21.10.360 (standards for specific uses) and accessory/structure rules § 21.10.400 .

If you are checking numeric setbacks, heights, FARs or parking for a particular site, start with the specific plan table for that subdistrict (Route 66 Table 6‑2 / Table notes) and then cross‑check the base zone appendix tables in Appendix 21.A for zones outside specific plans § 21.10. (tables & notes)* .

Design review and discretionary process

• Development review: Development Plan Review and other discretionary permits are processed under Chapter 21.02 and many specific plans delegate applicability and procedural detail back to Chapter 21.02; the Route 66 article explicitly says development review follows Chapter 21.02 in addition to the specific plan provisions § 21.10.430 .
• Who decides: Minor modifications and administrative approvals are handled by the planning director; larger discretionary approvals (development plans, tentative maps, master plan amendments) require Planning Commission and/or City Council action and are subject to the findings listed for development plan approval § 21.02.035 / § 21.01.030 (appeal/authority) .
• Design guidelines: Specific plans often include design guideline chapters and master development plans; the code treats “design and substantial conformance” rules tightly — some changes are administrative, others require formal specific plan amendments § 21.10. (substantial conformance & amendments)* .

For process details and submission checklists consult Glendora’s design‑review guidance and development standards pages. Glendora Design Review

Specific plans & overlays — how they function in Glendora

• Legal status: Glendora’s specific plans are adopted under California Government Code authority and may be adopted/amended by ordinance or resolution; when a specific plan is in effect its regulations supersede or supplement Title 21 within the plan boundary § 21.13.360 and § 21.10.490 .
• Route 66 Corridor (SP‑3): The Route 66 plan is a city‑adopted specific plan with subdistricts and its own tables (Table 6‑1 uses, Table 6‑2 standards, Table 6‑6 incentives) and contains a programmatic EIR and mitigation/monitoring requirements for projects that tier from it § 21.10.320–§ 21.10.520 .
• Other plans: Village on the Green (Chapter 21.09), Diamond Ridge (Chapter 21.11), Arboreta (Chapter 21.12), and Monrovia Nursery (Chapter 21.13) each contain project‑specific development/regulatory packages; these chapters state that the specific plan “constitutes the zoning” for the project site and set detailed standards and administrative rules (including what the planning director may approve administratively) § 21.09.010, § 21.11.010 – 21.11.050, § 21.12.270 .
• Overlay districts: overlays (height overlay, MHP, and other multifamily overlays) impose additional or alternative development standards (for example Special Height Overlay expressly allows up to 80 ft/eight stories and prescribes minimum front yards) § 21.07.030 . See the overlays index in Title 21 for mapped overlay rules. Glendora Overlay Districts

Building permits & review path — practical orientation

• Typical permit flow: Determine whether your parcel is inside a specific plan or overlay (specific plan chapters say they “take precedence” where adopted) § 21.10.490 → confirm permitted uses in the applicable Table (e.g., Table 6‑1 for Route 66 § 21.10.330) → determine whether the proposal needs Development Plan Review, CUP, or ministerial building permits (Chapter 21.02 and Appendix tables identify which permit is required) § 21.02 / Appendix 21.A .
• Vesting maps and subdivisions: A vesting tentative map confers development rights if approved and is processed per Subdivision Map Act rules; Glendora’s specific plan chapters explain vesting and map phasing rules § 21.09 (vesting tentative map guidance) .
• When the planning director can act: Many minor modifications and administrative determinations (minor revisions to master plans, landscaping changes, some infrastructure phasing adjustments) may be approved by the planning director under the respective specific plan chapter; larger changes need specific plan amendment/commission or council action § 21.02.035 and specific plan administrative action lists .
• Building permit issuance: The code states building permits are not issued until required planning approvals are in place and the planning director or planning commission (on appeal) has approved the application § 21.12.340 (Arboreta building permit rule) .

If you plan a project, confirm (1) zoning/specific plan designation, (2) which table controls numeric standards, (3) whether DPR/CUP or ministerial building permits are needed, and (4) whether the project must comply with the specific plan EIR and monitoring program § 21.10.520 .

State housing law in Glendora — ADUs, SB 9, density bonuses (local implementation)

Summary: Glendora references state housing laws and has incorporated implementing rules in Title 21 in several places, but the city treats state law as a floor — local code provisions either implement, supplement or (where allowed) provide discretionary incentives.

• Accessory Dwelling Units (ADUs): Glendora’s specific plan administrative lists expressly include “Accessory dwelling unit construction” as an item that may be processed as a substantial‑conformance/minor modification in some plans (i.e., the plan chapters acknowledge ADUs as a permissible activity to be administratively handled) § 21.10. (specific plan administrative list: accessory dwelling unit construction)* . The general Title 21 code refers readers to accessory structures rules (e.g., § 21.10.400 for accessory uses and structures) but a consolidated, standalone local ADU ordinance text does not appear in the retrieved excerpts; verify current local ADU dimensional/permit details with the planning department or the city's ADU guidance. Glendora ADUs California ADU law
• SB 9 (urban lot splits / two‑unit rule): Glendora has adopted local implementing rules for SB 9 (commonly called “SB 9 units” in the code) that set development standards (e.g., setbacks: side/rear 4 ft, height: 2 stories / 25 ft, open space: 200 sq ft per unit, parking: 1 space per SB9 unit), and the code states that variances for SB 9 are generally prohibited unless state law allows otherwise (SB 9 development standards and prohibitions; local codification / implementing ordinance) — see the SB 9 provisions in Title 21 for the full list and the local exceptions/tiebreakers (SB 9 local provisions) .
• Density bonus & local incentives: The Route 66 plan includes local development incentives such as lot consolidation FAR bonuses (Table 6‑6) and explicitly permits a 25% residential density bonus and one‑story height increase for certain mixed‑use projects that preserve or rebuild commercial square footage (Table notes and CCAP/T‑5 and Route 66 notes) § 21.10.420 and development table notes (Table notes: density bonus) . The plan also contains a formal density bonus for affordable housing § 21.10.420 (Route 66 affordable housing incentive language) .
• Rent control: There is no rent‑control ordinance within the zoning chapters retrieved; Title 21 addresses development standards, not rent regulation. No local rent‑control section was found in the retrieved zoning materials — verify with the city clerk or housing department for local rental‑market regulations. Not found in retrieved materials; verify with the jurisdiction.

Because state housing laws change, applicants should cross‑check local code requirements with the state rules (California Building Standards Code / Title 24 and state housing statutes) and the city’s current planning counter. California Building Standards Code California housing laws

Information gaps / verification items

• Precise local ADU numerical standards and permit forms were not fully located in the retrieved Title 21 excerpts — the code references accessory structures/ADU construction in specific plan administrative lists but a consolidated ADU section number was not found in the materials provided. Verify ADU dimensional/permit step details with the planning department (local ADU ordinance or handout). Not found in retrieved materials; see § 21.10.400 reference for accessory uses and structures .
• The code repeatedly refers to Appendix 21.A (tables A–E) for the numerical standards of many zones; the appendix tables themselves were not included in full in the retrieved excerpts. To confirm exact lot coverage, maximum FARs for non‑specific plan zones, and single‑family numeric caps you must consult Appendix 21.A as published by the city (Appendix 21.A referenced in multiple sections) .
• For the most current SB 9 technical amendments, building‑permit checklists, and any local exceptions recently adopted by ordinance, consult the planning counter or the municipal code online because the code text in the files shows multiple amending ordinances through 2025 — verify up to the date of your application (various ordinance cites / updates) .

Source References

• Glendora Municipal Code, Title 21 (Zoning), § 21.01.010 (Purpose / Title) .
• Route 66 Corridor Specific Plan (Chapter 21.10): establishment, subdistricts, tables and development procedures (see §§ 21.10.320, 21.10.330, 21.10.370, 21.10.420, 21.10.430, 21.10.490, 21.10.520) .
• Specific plan chapters: Village on the Green (Chapter 21.09) and Diamond Ridge (Chapter 21.11) — plan purpose, land use and administration (§§ 21.09.010; 21.11.010–21.11.050) .
• Overlays and special zones: Chapter 21.07 (Special Height overlay § 21.07.030) and multifamily overlays (Grand‑Foothill overlay rules) .
• Development procedures and DPR: Chapter 21.02 cross‑references and development plan review findings and process (see development plan findings and decision rules) § 21.02 / § 21.01.030 .
• Appendix references & technical standards: Appendix 21.A (tables A–E) referenced widely; landscape / lighting standards § 21.03.015 and parking references § 21.03.020 .
• SB 9 local implementation and standards (local SB9 unit standards, parking, open space, and limits on variances) — local SB 9 provisions and standards (ordinance citations through 2024–2025) .
• Title/attachments note: Title 21 includes attachment references (Appendix 21.A and EIR mitigation attachments) and lists ordinance amendment history (see Title 21 attachments) .