Rolling Hills Estates — Zoning

Last reviewed: July 2, 2026

Overview

This page summarizes what the Rolling Hills Estates Zoning Code (Title 17) actually says about zoning: the official districts, the map rules, the most important dimensional controls (lot area, coverage, yards, height), special districts/overlays, and where to find ADU rules and design-review triggers. For verification always check the official zoning map on file with the city and the controlling code sections cited here. The city's comprehensive zoning ordinance is codified as Title 17 — ZONING (the text and chapter headings appear throughout this page) (§ 17.02.005) .

How the ordinance defines districts and the map

• The city establishes specific zoning districts (and overlays) in § 17.04.020; the official districts are listed there and on the city's official zoning district map (the map is “part of this title”) (§ 17.04.020, § 17.04.040) .
• Where a district boundary is unclear, the code prescribes rules for interpretation (use street/lot lines, scale on the map) and gives the city authority to resolve uncertainties (§ 17.04.050—.060) .
• Newly annexed land defaults to R-A-20 unless otherwise zoned by council (§ 17.04.090) .

If you need the local zoning map, confirm the parcel's zoning with the city clerk or planning staff (the official map on file is the legal source) (§ 17.04.040) .

District-by-district breakdown

Note: Each district subsection below gives the district purpose (code language), the principal permitted/conditional uses called out in the ordinance, the key numeric standards the code actually prescribes, and where that district commonly applies. Where the written code defers to “the development standards of the zone” or to another chapter, I cite the controlling section.

R-A-E (Single-family Residential — one-acre minimum)

• Purpose: Single‑family, rural/residential lots with limited agricultural uses (§ 17.08.030) .
• Typical permitted uses: single‑family dwellings and customary accessory uses; accessory buildings and animal keeping subject to Chapter 17.46; some agricultural uses are allowed by cross‑reference to the general residential uses (§ 17.06.020 and § 17.16.020) .
• Key dimensional standards:
  • Minimum lot area: 1 acre; minimum lot width: 100 ft; minimum lot depth: 200 ft (§ 17.08.030) .
  • Maximum lot coverage: 25% in R‑A‑E/A (see lot coverage table; coverage rules in § 17.06.070) .
  • Yard/height: residential yard rules and general height rules in Chapter 17.06 apply (front yard minimum and side/rear minimums described below) (§ 17.06.110 et seq.; § 17.06.080) .
• Where it applies: larger‑lot, rural and horsekeeping neighborhoods; may overlay with H (horse) district provisions.

R-A-20 (Single-family Residential — 20,000 sq ft minimum)

• Purpose: Single‑family, low‑density residential (§ 17.10.030) .
• Typical permitted uses: single‑family homes and the accessory uses called out in Chapter 17.06; certain conditional uses (e.g., schools on minimum two‑acre sites) require a conditional use permit (§ 17.10.020–.030; § 17.06.030) .
• Key dimensional standards:
  • Minimum lot area: 20,000 sq ft; min width: 85 ft; min depth: 150 ft; minimum main building area: 1,600 sq ft (§ 17.10.030) .
  • Lot coverage follows the general coverage table (see § 17.06.070: 30% max for R‑A‑20) .
  • Front yard setbacks, side yards, and other yard/height rules are in Chapter 17.06 (§ 17.06.110 et seq.; § 17.06.080) .

R-A-15 (Single-family Residential — 15,000 sq ft minimum)

• Purpose & permitted uses: same general single‑family intent; details are layered onto the common residential rules (§ 17.12.010—.020) .
• Key dimensional standards:
  • Minimum lot area: 15,000 sq ft; min width: 75 ft; min depth: 125 ft; minimum main building area: 1,600 sq ft (§ 17.12.020) .
  • Lot coverage max: 30% per § 17.06.070 (see table) .

R-A-10 (Single-family Residential — 10,000 sq ft minimum)

• Purpose & permitted uses: single‑family residential with accessory uses per Chapter 17.06 (§ 17.14.030 et seq.) .
• Key dimensional standards:
  • Minimum lot area: 10,000 sq ft; min width: 65 ft; min depth: 110 ft; minimum main building area: 1,200 sq ft (§ 17.14.030 and following) .
  • Lot coverage max: 35% for R‑A‑10 per § 17.06.070 (§ 17.06.070(D)(3)) .
  • Special rear‑yard requirement: rear yard ≥ 25 ft in R‑A‑10 (§ 17.14.030) .

R-P-D (Residential Planned Development)

• Purpose: Allows planned residential development subject to the standards and a conditional use permit; used for multi‑lot projects that provide open space and compensating design features (§ 17.18.020; § 17.18.040) .
• Typical permitted uses: any use permitted in R‑A‑20 plus planned residential configurations; commercial/industrial uses expressly prohibited in R‑P‑D when operating as residential planned development (§ 17.18.020—.030) .
• Key dimensional standards:
  • Minimum project area for a planned development: 10 acres (for projects using the R‑P‑D mechanism) (§ 17.18.040(B)(1)) .
  • No structure > 35 ft or two stories for residential planned developments (§ 17.18.040(B)(3)) .
  • Open space: at least 70% of the parcel must be common/private open space in an R‑P‑D (§ 17.18.040(B)(4)) .
  • Project density must be consistent with the general plan and as designated on the official zoning map (§ 17.18.040(B)(2)) .

A (Agricultural) District

• Purpose and permitted uses: farms and ranching activities, accessory agricultural buildings, limited public and utility uses subject to a precise plan (§ 17.16.020) .
• Key numeric rules: lot coverage and yard standards reference Chapters 17.06; farmworker housing and its parking/ HCD permit requirements are set out in § 17.16.020(D) (§ 17.16.020) .

Commercial & Mixed‑Use Districts (high‑level)

• The code includes C‑R (Commercial Recreation), C‑O (Commercial Office), CLMU (Commercial Limited Mixed‑Use), and CGMU (Commercial General Mixed‑Use). Each district chapter provides permitted uses and precise plan/design requirements for non‑residential development (see the specific chapter(s) for use tables and precise‑plan triggers; CLMU purpose described at § 17.28.010) .

Open Space / Recreation (Chapter 17.15)

• Purpose: to preserve natural resources and recreation areas; permitted uses include public parks, trails, equestrian uses, reservoirs; building height limited to single story / 16 ft for new structures (§ 17.15.010—.060) .

Overlays — H, L, W

• The code lists overlays H (Horse), L (Landmark) and W (Workforce Housing) in the district table (§ 17.04.020). Overlay chapters and cross‑references (for example, horsekeeping provisions appear in Chapter 17.36) modify base zone rules where applicable (§ 17.04.020; see Chapter 17.36) .
• Overlays can change accessory building allowances, horsekeeping setbacks, and neighborhood compatibility considerations (see overlay chapters and the general residential standards) (§ 17.06.090; Chapter 17.36) .

Key development standards (quick reference table)

Practical guidance / synthesis (plain‑English interpretation)

• The Rolling Hills Estates code is deliberately rural and single‑family oriented. If your parcel is in any R‑A district expect minimum lot sizes, low lot coverage, and relatively deep front/side yards; the specific minima are in the chapters for each R‑A district (R‑A‑E, R‑A‑20, R‑A‑15, R‑A‑10) (§ 17.08.030; § 17.10.030; § 17.12.020; § 17.14.030) .
• For any proposed change from residential use you will face either a conditional use process, a precise plan of design (nonresidential) or neighborhood‑compatibility review; those processes require findings tied to the development standards, access, landscaping, and protection of adjacent properties (§ 17.06.030; § 17.58.010—.050; § 17.62.010) .
• ADUs are regulated in Chapter 17.56 and are subject to ministerial review when they meet the chapter's objective standards (size, setbacks, height limits, and certain parking exemptions). ADU rules explicitly conform to state ADU law where required (§ 17.56.010—.140) .
• Site design issues such as lot coverage, off‑street parking, and setbacks often determine feasibility. Consult the city's development standards and the parking rules early; the code includes front‑yard coverage ceilings and parking location allowances for residential driveways (§ 17.06.070; Chapter 17.40) .

Helpful links (first time each topic is mentioned): the city's zoning & planning overview, development standards, parking, design review, overlay districts, ADUs, and the California Building Standards Code (Title 24) are all relevant pages to consult for process and technical compliance.

Checklist (what an applicant must satisfy to stay consistent with Title 17)

• Confirm the parcel’s legal zoning on the official zoning district map (map is part of Title 17) — § 17.04.040
• Verify the base‑zone development standards that apply to the parcel (lot area, width, depth, lot coverage, front/side/rear yards, and height) — § 17.06.060—§ 17.06.330 and the specific R‑A chapter for the lot (e.g., § 17.10.030 for R‑A‑20)
• Check overlay districts (H, L, W) and any overlay‑specific requirements (Chapter 17.36 for horses, etc.) — § 17.04.020; see overlay chapters
• Determine whether the project requires a conditional use permit, precise plan of design, neighborhood compatibility review, or is ministerial (e.g., qualifying ADU) — § 17.06.030; § 17.58.010; Chapter 17.56
• Prepare dimensional calculations (lot coverage, front‑yard coverage percentage by frontage width, yards and height), because neighborhood compatibility and approvals will be evaluated against them — § 17.06.070; § 17.06.110; § 17.44.010
• For ADUs: confirm compliance with Chapter 17.56 size, setback, height, parking exemptions, and ministerial review steps — Chapter 17.56
• If close to an arterial or special street, check the special street setback table in § 17.44.020 (Palos Verdes Drive North, Crenshaw Blvd, etc.)
• If you rely on exemptions or exceptions (substandard lot, horsekeeping adjustments, etc.), prepare the evidence and request the correct discretionary or administrative exceptions per the code (§ 17.06.060; § 17.36; relevant exception sections)

Risks & Ambiguities

Plain‑English Summary

Rolling Hills Estates’ zoning (Title 17) divides the city into specific low‑density residential districts (the R‑A family), planned development, agricultural, and several commercial/mixed‑use districts, plus overlays for horses, landmarks and workforce housing; each zone has explicit minimum lot sizes, lot coverage caps, yard rules, and height limits spelled out in the code chapters cited above (e.g., § 17.04.020, § 17.10.030, § 17.06.070, § 17.56) — always verify the parcel’s zoning on the city’s official map and use the cited sections as your checklist for numeric compliance .

Source References

• Rolling Hills Estates Municipal Code — Title 17, ZONING (general purpose and rules): § 17.02.010
• Official list of zoning districts (district table and overlays): § 17.04.020
• District map legal status, copies on file, and map boundary rules: § 17.04.040—§ 17.04.060
• Annexation default zoning (defaults to R‑A‑20): § 17.04.090
• R‑A‑E district standards: § 17.08.030
• R‑A‑20 district standards and conditional uses: § 17.10.020—§ 17.10.030
• R‑A‑15 & R‑A‑10 district property development standards: § 17.12.020, § 17.14.030
• Residential property development rules (lot coverage, yards): § 17.06.060—§ 17.06.330, especially § 17.06.070 (lot coverage) and § 17.06.110 (front yard)
• Building height rules (general): § 17.06.080
• R‑P‑D planned development standards: § 17.18.020; § 17.18.040 (10‑acre minimum project area; 35‑ft height cap; 70% open space requirement)
• Precise plan of design and modification requirements for nonresidential development: § 17.58.010—§ 17.58.050
• Yard and special street setback rules (Palos Verdes Drive North, Crenshaw, etc.): § 17.44.010—§ 17.44.020
• Accessory Dwelling Units: Chapter 17.56 (ADU/JADU definitions, size, setbacks, ministerial review and parking exemptions; see § 17.56.020, § 17.56.090—§ 17.56.140)
• Agricultural district permitted uses and farmworker housing rules: § 17.16.020

Retrieved passages

• Rolling Hills Estates Zoning Code (§ 1832) High relevance show source text
• Rolling Hills Estates Zoning Code (Title 17) High relevance show source text
• Rolling Hills Estates Zoning Code (§ 1) High relevance show source text
• Rolling Hills Estates Zoning Code (Title 17) High relevance show source text
• CBC § 66314 (§ 66314) High relevance show source text
• Rolling Hills Estates Zoning Code (§ 1804) Medium relevance show source text
• Rolling Hills Estates Zoning Code (§ 1812) Medium relevance show source text
• Rolling Hills Estates Zoning Code (§ 1809) Medium relevance show source text
• Rolling Hills Estates Zoning Code (Section 17.02.655) High relevance show source text
• Rolling Hills Estates Zoning Code (Section 21155) High relevance show source text
• Rolling Hills Estates Zoning Code (§ 1822) High relevance show source text
• CFC § 310 (Section 310) High relevance show source text
• Rolling Hills Estates Zoning Code (Section 17.02.520) High relevance show source text
• Rolling Hills Estates Zoning Code (Chapter 17.68) High relevance show source text
• Rolling Hills Estates Zoning Code (Chapter 17.68.) High relevance show source text
• Rolling Hills Estates Zoning Code (section 66323) Medium relevance show source text
• CFC § 21155 (Section 21155) Medium relevance show source text
• Rolling Hills Estates Zoning Code (§ 3) Medium relevance show source text
• Rolling Hills Estates Zoning Code (§ 1) Medium relevance show source text
• Rolling Hills Estates Zoning Code (Section 17.02.675) Medium relevance show source text

Cited sections

• Rolling Hills Estates Municipal Code — Title 17, ZONING (general purpose and rules): **§ 17.02.010** (Title 17)
• Official list of zoning districts (district table and overlays): **§ 17.04.020** (§ 17.04.020)
• District map legal status, copies on file, and map boundary rules: **§ 17.04.040—§ 17.04.060** (§ 17.04.040)
• Annexation default zoning (defaults to **R‑A‑20**): **§ 17.04.090** (§ 17.04.090)
• R‑A‑E district standards: **§ 17.08.030** (§ 17.08.030)
• R‑A‑20 district standards and conditional uses: **§ 17.10.020—§ 17.10.030** (§ 17.10.020)
• R‑A‑15 & R‑A‑10 district property development standards: **§ 17.12.020**, **§ 17.14.030** (§ 17.12.020)
• Residential property development rules (lot coverage, yards): **§ 17.06.060—§ 17.06.330**, especially **§ 17.06.070** (lot coverage) and **§ 17.06.110** (front yard) (§ 17.06.060)
• Building height rules (general): **§ 17.06.080** (§ 17.06.080)
• R‑P‑D planned development standards: **§ 17.18.020; § 17.18.040** (10‑acre minimum project area; 35‑ft height cap; 70% open space requirement) (§ 17.18.020)
• Precise plan of design and modification requirements for nonresidential development: **§ 17.58.010—§ 17.58.050** (§ 17.58.010)
• Yard and special street setback rules (Palos Verdes Drive North, Crenshaw, etc.): **§ 17.44.010—§ 17.44.020** (§ 17.44.010)
• Accessory Dwelling Units: **Chapter 17.56** (ADU/JADU definitions, size, setbacks, ministerial review and parking exemptions; see **§ 17.56.020, § 17.56.090—§ 17.56.140**) (Chapter 17.56)
• Agricultural district permitted uses and farmworker housing rules: **§ 17.16.020** (§ 17.16.020)
• RollingHillsEstates_ZoningCode.md

• Official Rolling Hills Estates code library