Aliso Viejo — Zoning

Last reviewed: July 3, 2026

Overview

This page explains how the City of Aliso Viejo organizes and enforces zoning (Title 15: Planning and Zoning). It summarizes the city’s base districts, common overlays, where to find the official zoning map, and the most relevant numeric development controls you’ll encounter when proposing development or a change of use. For site-level requirements see the city's Aliso Viejo Development Standards and confirm parking obligations with the city's Aliso Viejo Parking rules. The zoning ordinance is codified in AVMC Title 15 and organizes districts, uses, and numeric standards in chapters such as § 15.06.010, § 15.10.020, and § 15.18.030 .

Division-by-division (district-by-district) breakdown Note: the city uses base districts (e.g., RL, RM, CT) and overlay symbols (e.g., PRD, CZ) shown on the official zoning map § 15.06.020 . Where an overlay conflicts with the base district, the overlay controls § 15.06.010(D) .

Residential districts (Chapter 15.10)

• RL — Low Density Residential

  • Purpose: low-density single‑family neighborhoods; maximum density 8 units/gross acre § 15.10.010(B)(1) .
  • Typical permitted uses: single‑family detached and attached dwellings (P); limited accessory residential uses per § 15.10.020 .
  • Key dimensional rules: follow the residential development standards table and supplemental regulations in § 15.10.030 (setbacks, lot area, height; verify map-specific modifications) .
  • Where applied: mapped areas designated RL on the Official Zoning Map § 15.06.020 .

• RM — Medium Density Residential

  • Purpose: duplexes, townhomes, small multifamily; max density 18 units/gross acre § 15.10.010(B)(2) .
  • Typical uses: multifamily, attached single family, limited accessory uses per § 15.10.020 .
  • Dimensional standards: see § 15.10.030 (lot sizes, setbacks, height, open space) and supplemental residential rules (Chapter 15.14) .

• RH — High Density Residential

  • Purpose: denser multifamily such as apartments/condos; max density 30 units/gross acre § 15.10.010(B)(3) .
  • Typical uses: multifamily dwellings, residential care, subject to use table § 15.10.020 .

• RVH — Very High Density Residential

  • Purpose: highest density multifamily (apartments, senior housing); max density 50 units/gross acre § 15.10.010(B)(4) .
  • Typical uses and standards: see § 15.10.020–15.10.030; PRD overlay options available § 15.10.040 .

• PRD — Planned Residential Development (overlay)

  • Purpose: overlay to tailor setbacks, open space and site design for planned projects; permitted uses are those of the underlying district § 15.10.040(A–B) .
  • Note: PRD projects approved after the code effective date use the standards shown in Table 15.10.030; older projects keep their established standards § 15.10.040(B)(2) .

(Residential permitted uses and the "P / C / A / AUP / TUP / NP" notation are spelled out in § 15.10.020; consult the Table 15.10.020 use matrix for line‑by‑line classification) .

Nonresidential districts (Chapter 15.18)

• CT — Town Center Commercial

  • Purpose: community/regional-serving mixed-use town center; walkable urban core § 15.18.010(B)(1) .
  • Typical uses: retail, restaurants, offices, theaters, hotels § 15.18.020 .
  • Key numbers: maximum structure height ~45 ft and FAR locationally specified; setbacks vary by street type (arterial, local, residential interfaces) § 15.18.030 .

• CC — Community Commercial

  • Purpose: citywide commercial (shopping, services) § 15.18.010(B)(2) .
  • Uses and standards: retail, lodging, restaurants; refer to Table 15.18.020 (uses) and Table 15.18.030 (standards) § 15.18.020–.030 .

• CN — Neighborhood Commercial

  • Purpose: local-serving convenience retail and small offices § 15.18.010(B)(3) .
  • Standards: lower intensity setbacks and heights compared with CT; check Table 15.18.030 for perimeter setbacks and FAR § 15.18.030 .

• PO — Professional Office; BP‑1 / BP‑2 — Business Park

  • Purpose: professional offices and business park uses (R&D, light industrial, office) § 15.18.010 .
  • Standards: PO has higher maximum height (e.g., ~65 ft) and BP district FAR limits — see Table 15.18.030 for exact height/FAR and setbacks § 15.18.030 .

• Permitted uses in nonresidential districts are enumerated in Table 15.18.020 (automotive, retail, dining, lodging, office, industrial, accessory uses) § 15.18.020 .

Special purpose & open space (Chapter 15.26)

• CF — Community Facilities (public uses; FAR limit 0.6:1, max height 50 ft, setbacks shown in Table 15.26.030) § 15.26.030 .
• OR — Open Space Recreation and OS — Open Space Preservation (lower heights / preservation standards; see Table 15.26.030) § 15.26.030 .

Specific Plans (SP) and map-modified standards

• The code recognizes SP districts (SP‑1 Vantis, SP‑2 Commons, SP‑3 Glenwood, SP‑4 Ventana Ridge). Specific plans act as base or overlay districts; their rules can supersede base district standards § 15.06.010(C) .
• The Official Zoning Map can display modified standards for a parcel using symbols (e.g., RL(20/5/25), RL:10000, height figures, FAR in brackets). These modified standards supersede the generic district tables § 15.06.060 .

Overlay districts — what to watch for

• PRD (Planned Residential Development) — overlay for customized planned communities; underlying uses apply § 15.10.040 .
• CZ (Coastal Zone Overlay) — overlay that triggers coastal development permit requirements; additional environmental and permitting rules in § 15.26.050 .
• The city’s overlay rules state that where overlays differ from base rules, the overlay controls § 15.06.010(D) . See the Aliso Viejo Overlay Districts summary for context.

Key numeric standards (quick reference table)

Notes: setbacks are measured from the ultimate street right‑of‑way; all minimum perimeter setbacks must be increased 1 ft for every foot in height above 35 ft in many districts (except interior property line setbacks) § 15.18.030 . Map‑specific symbols (e.g., RL(20/5/25) or RL:10000) override the generic tables § 15.06.060 .

Permitted uses and discretionary review

• The per‑district use matrices (Tables 15.10.020 for residential and 15.18.020 for nonresidential) show whether a use is P, A, C, AUP, TUP, or NP in each district § 15.10.020; § 15.18.020 .
• If a use is not listed, it is generally prohibited unless the planning director finds it analogous and permits it as permitted or conditional under § 15.06.050 (unlisted land uses) .

Design, parking and other regulated elements

• Projects must meet the city’s Aliso Viejo Design Review standards and design review procedures in Chapter 15.62 (applicability, review thresholds and design criteria) § 15.62.010–.050 .
• Parking requirements (rates, special studies, approvals) are in Chapter 15.38; off‑street parking facilities often require a site development permit § 15.38.050. Confirm specifics with the Aliso Viejo Parking page and § 15.38.030 .
• Landscaping, screening and signage standards are cross‑referenced in the district tables and detailed in Chapters 15.62, 15.34, and related sections (see Aliso Viejo Landscaping and Screening and Aliso Viejo Signage) .

Accessory Dwelling Units (ADUs)

• ADU rules are implemented consistent with state ADU law but within local zoning parameters (setbacks, size, design review where applicable). See local ADU provisions (setbacks, size caps, four‑foot side/rear minimums for many ADUs) § 15.14.x / ADU subsection and the city ADU summary Aliso Viejo ADUs. For the ordinance text on ADU classifications and standards see the ADU-specific subsections in Title 15 . Link to state construction rules via California Building Standards Code.

Checklist (what an applicant must satisfy)

• Verify the parcel’s base district and any overlay or map-modified symbols on the Official Zoning Map § 15.06.020 .
• Confirm the proposed use is allowed in that district via Table 15.10.020 (residential) or 15.18.020 (nonresidential) § 15.10.020; § 15.18.020 .
• Meet numeric development standards (setbacks, height, FAR, lot coverage) from Table 15.10.030/15.18.030/15.26.030 and any map symbols § 15.10.030; § 15.18.030; § 15.26.030; § 15.06.060 .
• Provide required parking per § 15.38 and the Aliso Viejo Parking standards; where required, submit a parking study § 15.38.140 .
• Satisfy any Aliso Viejo Design Review thresholds and design standards (Chapter 15.62) and obtain design review/site development permit if required § 15.62.050; § 15.74.020 .
• If in an overlay (e.g., CZ) get required permits (coastal development permit and any environmental studies) § 15.26.050 .
• If a use is not listed, request a determination under § 15.06.050 (unlisted uses) .
• Check whether any specific plan (SP) or deed restriction imposes additional rules § 15.06.010(C) .
• For ADUs, follow local ADU subsection and state ADU law; consult Aliso Viejo ADUs and the California ADU law summary § (ADU subsections in Title 15) .

Risks & Ambiguities

Plain-English Summary

Aliso Viejo’s zoning code (Title 15) assigns every parcel a base district code such as RL, CT, or BP‑1, plus possible overlays like PRD or CZ; those codes decide what you can build, where it must sit on the lot, and how tall it can be (see the official map and Tables 15.10.020 / 15.18.020 / 15.18.030) § 15.06.020; § 15.10.020; § 15.18.030 . Always check for map-specific modifiers and overlay rules — they override the general tables § 15.06.060 .

Source References

• AVMC Title 15 (Planning and Zoning) — Establishment of districts § 15.06.010
• Official Zoning Map and amendments § 15.06.020
• Unlisted land uses (director determinations) § 15.06.050
• Special zoning symbols / map modifiers § 15.06.060
• Residential districts, permitted uses and development standards § 15.10.010–.040; § 15.10.020; § 15.10.030
• Nonresidential permitted uses and development standards (Tables 15.18.020, 15.18.030) § 15.18.010–.030
• Special purpose district standards (CF / OR / OS) § 15.26.030
• Design standards and design review (Chapter 15.62) § 15.62.010–.050
• Parking code and parking facility approvals (Chapter 15.38) § 15.38.050; § 15.38.030
• ADU provisions and related local standards (Title 15 ADU subsections) (See local ADU subsection in Title 15)
• For state construction standards referenced by the code: California Building Standards Code

Retrieved passages

• Aliso Viejo Zoning Code (Chapter 15.30) High relevance show source text
• Aliso Viejo Zoning Code (§ 1) High relevance show source text
• Aliso Viejo Zoning Code (section identifies) High relevance show source text
• Aliso Viejo Zoning Code Medium relevance show source text
• Aliso Viejo Zoning Code (section alters) Medium relevance show source text
• Aliso Viejo Zoning Code (§ 5) Medium relevance show source text
• Aliso Viejo Zoning Code (§ 1) Medium relevance show source text
• Aliso Viejo Zoning Code (§ 3) Medium relevance show source text
• CFC § 4 (§ 4) High relevance show source text
• Aliso Viejo Zoning Code (§ 1) High relevance show source text
• Aliso Viejo Zoning Code (§ 3) High relevance show source text
• Aliso Viejo Zoning Code (§ 3) High relevance show source text
• Aliso Viejo Zoning Code (§ 1) High relevance show source text
• Aliso Viejo Zoning Code (title and) Medium relevance show source text
• Aliso Viejo Zoning Code (§ 3) Medium relevance show source text
• Aliso Viejo Zoning Code Medium relevance show source text

Cited sections

• AVMC Title 15 (Planning and Zoning) — Establishment of districts **§ 15.06.010** (Title 15)
• Official Zoning Map and amendments **§ 15.06.020** (§ 15.06.020)
• Unlisted land uses (director determinations) **§ 15.06.050** (§ 15.06.050)
• Special zoning symbols / map modifiers **§ 15.06.060** (§ 15.06.060)
• Residential districts, permitted uses and development standards **§ 15.10.010–.040; § 15.10.020; § 15.10.030** (§ 15.10.010)
• Nonresidential permitted uses and development standards (Tables 15.18.020, 15.18.030) **§ 15.18.010–.030** (§ 15.18.010)
• Special purpose district standards (CF / OR / OS) **§ 15.26.030** (§ 15.26.030)
• Design standards and design review (Chapter 15.62) **§ 15.62.010–.050** (Chapter 15.62)
• Parking code and parking facility approvals (Chapter 15.38) **§ 15.38.050; § 15.38.030** (Chapter 15.38)
• ADU provisions and related local standards (Title 15 ADU subsections) **(See local ADU subsection in Title 15)** (Title 15)
• For state construction standards referenced by the code: California Building Standards Code
• AlisoViejo_ZoningCode.md