Zoning Guide

Riverside Setbacks & Height Limits — Residential Zones

Last updated: Verified:

Fact-checked against the City of Riverside Residential Zones handout currently published by the Planning Division and current California ADU law on September 21, 2026.

Riverside's residential dimensional standards vary substantially by district. The previous page understated several front, side, and rear setbacks in the R-1 districts.

Current Single-Family Examples

The City's published Residential Zones handout lists:

Zone Min. Lot Area Front Side* Street Side Rear Max. Height Max. Coverage
RE 1 acre 30 ft 25 ft 25 ft 30 ft 35 ft / 2 stories 30%
R-1-13000 13,000 sq ft 25 ft 15 ft 15 ft 30 ft 35 ft / 2 stories 30%
R-1-10500 10,500 sq ft 25 ft 10/15 ft* 15 ft 25 ft 35 ft / 2 stories 35%
R-1-8500 8,500 sq ft 25 ft 12.5/7.5 ft* 12.5 ft 25 ft 35 ft / 2 stories 35%
R-1-7000 7,000 sq ft 20 ft 10/7.5 ft* 10 ft 25 ft 35 ft / 2 stories 40%
  • The City's table uses district-specific side-yard entries and footnotes. Read the published table and its notes for the exact parcel condition rather than interpreting a slash value as interchangeable alternatives.

The previous version listed R-1-7000 as 25-ft front, 5-ft side, and 15-ft rear. The City's published table instead shows 20-ft front, district-specific 10/7.5-ft side entry, 10-ft street side, and 25-ft rear.

It also listed R-1-8500 with a 20-ft rear yard; the City's handout shows 25 ft.

Important Exceptions in the City's Handout

The published footnotes include several exceptions:

  • qualifying older narrow lots can receive reduced interior-side setbacks;
  • open porches can project into the required front yard;
  • additions to legally established dwellings with nonconforming side yards can retain specified setbacks subject to minimum clearances;
  • a limited portion of a dwelling can extend into the required rear yard under the City's 500-sq-ft encroachment rule;
  • Hawarden Drive has a special 50-ft front-yard rule in the stated design area;
  • the Building Stories Overlay can change maximum height/stories.

These exceptions are part of the official table and should be checked before design.

Multifamily Zones

R-3-4000 through R-3-1500 and R-4 use different setbacks, heights, densities, and lot requirements. Do not apply the R-1 values above to multifamily property.

California State ADU Law

Current State ADU Law is codified at Government Code §§66310–66342. Older §65852.2 citations are outdated.

New-construction ADUs generally cannot be required to provide more than 4 ft of side or rear setback under current state law. Height varies by the statutory ADU configuration.

See the Riverside ADU rules page for city-specific implementation.

How to Check a Property

  1. Confirm the exact Riverside zoning district.
  2. Use the City's current Residential Zones table.
  3. Read all numbered footnotes that apply to the parcel.
  4. Check Building Stories, Building Setback, hillside, airport, historic, and other overlays.
  5. Apply current state housing-law overrides separately where relevant.
  6. Confirm unusual conditions with Riverside Planning.

Official Sources

This guide is informational only. The current Riverside Municipal Code, official table footnotes, state law, and parcel-specific controls govern.

More about Riverside Zoning

ADU Rules in RiversideBuilding Permits in Riverside

Sources

  1. Riverside Municipal Code Title 19 — Zoning (Municode)·library.municode.com·Accessed 2026-04-14·Direct link
  2. City of Riverside Community & Economic Development Department, Planning Division·riversideca.gov·Accessed 2026-04-14·Direct link
  3. Riverside Zoning Code & Regulations·riversideca.gov·Accessed 2026-04-14·Direct link
  4. California Government Code Section 65852.2 (State ADU Law)·leginfo.legislature.ca.gov·Accessed 2026-04-14·Direct link

FAQ

What are the setback requirements in Riverside?
Setbacks in Riverside vary by zoning district. For the most common single-family zone (R-1-7000), expect a 25 ft front setback, 5 ft interior side setbacks, and a 15 ft rear setback. Higher-density R-3 multi-family zones typically require 15 ft front, 5 ft side, and 15 ft rear. Always verify your specific zone on Map Riverside before designing.
What is the maximum building height in Riverside residential zones?
The default maximum building height in all Riverside residential zones (RA-5 through R-3) is 35 ft and 2 stories, measured per Title 19. The Building Stories Overlay Zone (S) can raise or lower this on specific parcels. Hillside and view-sensitive parcels may have additional limits.
Do state ADU rules override Riverside setbacks?
Yes. Under California Government Code Section 65852.2, ADUs only need 4 ft side and rear setbacks regardless of the local zone, and cities cannot impose a front setback that precludes an 800 sq ft ADU. Local height and setback standards for ADUs are pre-empted by state law in most situations.
How is lot coverage calculated in Riverside?
Lot coverage in Riverside is the percentage of the lot covered by buildings and roofed structures. Title 19 sets maximum coverage separately for each zone — typically around 40% for standard single-family (R-1) zones. Uncovered patios, pools, and driveways are generally excluded, but confirm the definition in Chapter 19.910.