Riverside I zoning: height, setbacks and lot size

I is a zoning district in Riverside. Every value below was read from the Riverside Municipal Code and links to its section (read October 2026). State laws such as the ADU and SB 9 rules can allow more on a residential lot. General information, not legal advice — read the code text and check with the city before you build.

Development standards in I

The general rule for a typical lot in this zone. Zoning tables often attach notes, such as rules for corner lots, lots next to a residential zone, or new subdivisions only. Open “code text” under a value to see the table cell or sentence it was read from.

Maximum building height	45 ft Applies: all other locations (not within 200 ft of a residential zone or use); can be increased with a conditional use permit § 19.435.030 · code text Table row “a. Within 200 feet of a sensitive receptor 6, 7, 8”, column “I”: 35 ft.
Minimum front setback	20 ft Applies: 50 ft where the lot abuts or is adjacent to a residential zone or use § 19.435.030 · code text Table row “Front Yard Setback - Minimum 5”, column “I”: 20 ft.
Minimum side setback	0 ft § 19.435.030 · code text Table row “a. Interior Side”, column “I”: 0 ft.
Minimum rear setback	0 ft § 19.435.030 · code text Table row “a. Rear yard”, column “I”: 0 ft.
Minimum lot size	10,000 sq. ft. § 19.435.030 · code text Table row “Lot Area - Minimum”, column “I”: 10,000 sq. ft.
Maximum floor area ratio (FAR)	0.60 See note 1 below the table in the code. § 19.130.030 · code text Table row “Floor-Area-Ratio (FAR) - Maximum 1, 3”, column “I”: 0.60 Note 1: The Approving or Appeal Authority may allow a development project to exceed a maximum FAR when findings can be made that such project (a) will not have a detrimental effect on infrastructure and municipal services, (b) will not adversely impact the surrounding neighborhood, and (c) will not likely set a precedent for additional development that would adversely affect infrastructure, service or sur

When a different number applies

The code sets other values for particular lots, buildings or locations in I:

Maximum building height: 35 ft — within 200 ft of a residential zone or use, unless a freeway separates the site from it § 19.130.030
Minimum side setback: 60 ft — Adjacent to Residential Zone or use, except where the site is separated from such residential zone or use by a freeway. § 19.130.030
Minimum side setback: 20 ft — Street side. § 19.130.030
Minimum rear setback: 60 ft — Adjacent to Residential Zone or use, except where the site is separated from such residential zone or use by a freeway. § 19.130.030
Minimum rear setback: 20 ft — Adjacent to streets. § 19.130.030
Maximum floor area ratio (FAR): 0.50 — warehousing and distribution facilities only: lots under 2 acres, within 200 ft of a sensitive receptor § 19.435.030

Not on this page

We did not find a general stories, lot coverage, density limit for I in the zoning tables we read. The code may still set one elsewhere — check the Riverside Municipal Code.

Other Riverside zoning districts

Who this affects

HomeownersArchitects and designersDevelopersReal estate agents

Frequently asked questions

What is the maximum building height in Riverside's I zone?

45 ft (all other locations (not within 200 ft of a residential zone or use); can be increased with a conditional use permit) — Riverside Municipal Code § 19.435.030.

What is the minimum front setback in Riverside's I zone?

20 ft (50 ft where the lot abuts or is adjacent to a residential zone or use) — Riverside Municipal Code § 19.435.030.

What is the minimum side setback in Riverside's I zone?

0 ft — Riverside Municipal Code § 19.435.030.

What is the minimum rear setback in Riverside's I zone?

0 ft — Riverside Municipal Code § 19.435.030.

What is the minimum lot size in Riverside's I zone?

10,000 sq. ft. — Riverside Municipal Code § 19.435.030.

General information, not legal advice.