What are the typical residential setbacks in Riverside?

In R-1-7000 zones, front setbacks are 25 feet, side 5 feet, rear 15 feet with 40% lot coverage. R-1-13000 estate zones require 30-foot front and 10-foot side setbacks. RC conservation zones have enhanced setbacks for citrus preservation areas.

What historic district requirements apply?

The Cultural Heritage Board reviews projects in districts including Mission Inn, Downtown, Wood Streets, Mt. Rubidoux, and Arlington Heights. Mills Act contracts provide property tax reductions. California and federal historic credits available. Board review adds 4-6 weeks.

What hillside development rules apply?

Properties with slopes 15%+ are in the hillside overlay with grading restrictions and geotechnical study requirements. Fire hazard zones may require defensible space. Visual impact considerations apply.

Yes, per California law. Detached up to 1,200 sq ft, 4-foot setbacks. Junior ADU up to 500 sq ft. No parking near transit. Ministerial approval.

What stormwater management is required?

Santa Ana River watershed rules apply. WQMP required for projects creating 10,000+ sq ft of impervious surface. LID measures including bioretention and permeable pavement required.

What is the Residential Conservation zone?

The RC zone has enhanced setbacks to preserve citrus groves and agricultural character in parts of Riverside, reflecting the city's heritage as the birthplace of California's citrus industry.

How do I submit plans?

Submit through riversideca.gov/permits. Walk-in at 3900 Main Street, 3rd Floor. Residential permits take 4-6 weeks.

How long does plan review take?

Residential 4-6 weeks. Commercial 6-12 weeks. Cultural Heritage Board historic review adds 4-6 weeks. Stormwater and hillside reviews concurrent.

Riverside Site Plan Requirements | Permits & Zoning Guide

By Site Plan Creator Team • March 6, 2026

Everything you need to know about creating a site plan for building permits in Riverside, CA. Covers zoning requirements, setbacks, stormwater management, and submission procedures.

Riverside Site Plan Requirements: Complete Guide for Building Permits

Creating a site plan for a building permit in Riverside, California requires meeting specific requirements set by the Community and Economic Development Department. Riverside's development is governed by Title 19 (Zoning Code) of the Riverside Municipal Code, with unique considerations including citrus heritage preservation, the Santa Ana River corridor, hillside development in the Box Springs Mountains, and extensive historic districts reflecting the city's role as the birthplace of California's citrus industry.

Required Site Plan Elements

Property boundaries with dimensions and total lot area
Setbacks per Title 19
Existing and proposed structures
Lot coverage and FAR
Parking per Title 19
Landscaping per WELO
Stormwater management per Santa Ana River watershed standards
Hillside overlay if applicable
North arrow and scale
Riverside County APN

Riverside Zoning and Setback Requirements

R-1-7000 (Single-Family, 7,000 sq ft): Front 25 feet, side 5 feet, rear 15 feet. Lot coverage max 40%. Height max 35 feet.
R-1-8500 (Single-Family, 8,500 sq ft): Front 25 feet, side 5 feet, rear 20 feet. Lot coverage max 40%.
R-1-13000 (Estate): Front 30 feet, side 10 feet, rear 25 feet. Lot coverage max 30%.
R-3 (Multi-Family): Front 20 feet, side 10 feet, rear 15 feet.
RC (Residential Conservation): Enhanced setbacks for citrus grove and agricultural areas.

Historic Preservation

Riverside has extensive historic preservation:

Cultural Heritage Board reviews projects in local historic districts
Historic districts: Including Mission Inn Historic District, Downtown, Wood Streets, Mt. Rubidoux, and Arlington Heights
Mills Act contracts: Property tax reductions for historic property maintenance
California and federal historic tax credits available

Hillside Development Standards

Hillside overlay: Applies to properties with slopes 15%+ in the Box Springs Mountains and other hillside areas
Grading restrictions: Limited cut and fill based on slope percentage
Geotechnical study required for hillside development
Fire hazard zones: Hillside areas may be in VHFHSZ requiring defensible space

ADU Requirements

Per California law: Detached ADU up to 1,200 sq ft, 4-foot setbacks
Junior ADU up to 500 sq ft
No parking within 1/2 mile of transit
Ministerial approval for compliant ADUs

Stormwater Management

Santa Ana River watershed: Enhanced water quality treatment per the Santa Ana Regional Water Quality Control Board
WQMP: Required for projects creating 10,000+ sq ft of impervious surface
LID measures: Bioretention, permeable pavement required

How to Submit

Submit through Riverside's online permitting portal at riversideca.gov/permits. Walk-in at 3900 Main Street, 3rd Floor.

Permit Fees and Timeline

Fees: Per fee schedule; includes development impact fees
Timeline: Residential 4-6 weeks. Commercial 6-12 weeks. Cultural Heritage Board adds 4-6 weeks.

Creating Your Riverside Site Plan with Site Plan Creator

Site Plan Creator makes it easy to generate a professional, permit-ready site plan for your Riverside property. Simply enter your address, and the tool automatically loads your property boundaries, building footprints, and aerial imagery. You can then add setback lines, label structures, draw proposed construction, and export a scaled PDF ready for submission.

ADU Details for Riverside

Riverside ADU Ordinance: Follows California statewide standards with local implementation guidelines
Ministerial approval: ADUs meeting all standards are approved ministerially without discretionary review or public hearing
Multiple ADUs: Single-family lots can have both a detached ADU (up to 1,200 sq ft) and a Junior ADU (up to 500 sq ft)
Historic district ADUs: ADUs in historic districts must be compatible with the historic character but cannot be denied solely on historic grounds per California law

Citrus Heritage Preservation

Riverside is the birthplace of California's citrus industry: The Parent Washington Navel Orange Tree (planted 1873) remains a landmark
Citrus State Historic Park: Located in Riverside, preserving citrus growing heritage and landscape
Citrus grove preservation: The RC (Residential Conservation) zone protects remaining citrus groves and agricultural character in parts of the city
Arlington Heights: Historic citrus landscape area with enhanced development standards preserving the rural-suburban character

University Area and Eastside Planning

UC Riverside area: University Village Specific Plan with mixed-use and student-oriented development standards
Innovation District: Enhanced standards for research and technology development near UCR
Eastside Specific Plan: Revitalization efforts for the historic Eastside neighborhood with design standards and incentives
Development agreements: Larger projects near UCR may utilize development agreements for flexible standards

Frequently Asked Questions

What are the typical residential setbacks in Riverside?: In R-1-7000 zones, front setbacks are 25 feet, side 5 feet, rear 15 feet with 40% lot coverage. R-1-13000 estate zones require 30-foot front and 10-foot side setbacks. RC conservation zones have enhanced setbacks for citrus preservation areas.
What historic district requirements apply?: The Cultural Heritage Board reviews projects in districts including Mission Inn, Downtown, Wood Streets, Mt. Rubidoux, and Arlington Heights. Mills Act contracts provide property tax reductions. California and federal historic credits available. Board review adds 4-6 weeks.
What hillside development rules apply?: Properties with slopes 15%+ are in the hillside overlay with grading restrictions and geotechnical study requirements. Fire hazard zones may require defensible space. Visual impact considerations apply.
Can I build an ADU?: Yes, per California law. Detached up to 1,200 sq ft, 4-foot setbacks. Junior ADU up to 500 sq ft. No parking near transit. Ministerial approval.
What stormwater management is required?: Santa Ana River watershed rules apply. WQMP required for projects creating 10,000+ sq ft of impervious surface. LID measures including bioretention and permeable pavement required.
What is the Residential Conservation zone?: The RC zone has enhanced setbacks to preserve citrus groves and agricultural character in parts of Riverside, reflecting the city's heritage as the birthplace of California's citrus industry.
How do I submit plans?: Submit through riversideca.gov/permits. Walk-in at 3900 Main Street, 3rd Floor. Residential permits take 4-6 weeks.
How long does plan review take?: Residential 4-6 weeks. Commercial 6-12 weeks. Cultural Heritage Board historic review adds 4-6 weeks. Stormwater and hillside reviews concurrent.

How to Create a Site Plan in Riverside

Look Up Your Property Information: Use Riverside's GIS to find zoning, historic district, hillside overlay, fire hazard zone, and lot dimensions. Note your Riverside County APN.
Determine Constraints: Check historic district status, hillside overlay, fire hazard zone, Santa Ana watershed stormwater requirements, and RC conservation zone status.
Create Your Site Plan: Enter your Riverside address in Site Plan Creator to load property boundaries, building footprints, and aerial imagery. Add setback lines per Title 19.
Include All Required Elements: Include boundaries, setbacks, lot coverage, FAR, parking, landscaping, stormwater, hillside areas, and north arrow with scale.
Prepare Supporting Documents: Prepare Cultural Heritage Board application for historic districts. WQMP for stormwater. Geotechnical study for hillside properties.
Submit Through Online Portal: Upload plans through riversideca.gov/permits. Pay fees including impact fees.
Manage Review and Obtain Permit: Respond to comments. Attend Cultural Heritage Board if required. Once approved, pay fees, receive permit, schedule inspections.