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Riverside · Zoning · RA-5

Riverside RA-5 zoning: height, setbacks and lot size

In Riverside's RA-5 zone, buildings can be up to 35 ft (2 stories) tall, the front setback is 40 ft and the minimum lot size is 5 Acres (Riverside code, read October 2026).

Key points

  • Maximum building height: 35 ft
  • Maximum number of stories: 2 stories
  • Minimum front setback: 40 ft
  • Minimum side setback: 20 ft
  • Minimum rear setback: 25 ft
  • Minimum lot size: 5 Acres
  • Maximum lot coverage: 30%
  • Maximum density: 0.20 dwelling units per gross acre

RA-5 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 RA-5

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
35 ft
§ 19.100.040 · code text
Table row “Building Height - Maximum 10,15”, column “RA-5”: 35 ft.
Maximum number of stories
2 stories
§ 19.100.040 · code text
Table row “Number of Stories - Maximum 15”, column “RA-5”: 2
Minimum front setback
40 ft
§ 19.100.040 · code text
Table row “A. Front 7”, column “RA-5”: 40 ft. 2
Minimum side setback
20 ft
See note 16 below the table in the code.
§ 19.100.040 · code text
Table row “B. Side 5, 16”, column “RA-5”: 20 ft. 2
Note 16: See Chapter 18.085 (Urban Lot Splits) of the Subdivision Code and Chapter 19.443 (Two-Unit Developments) of this Title for density, lot area, lot width, lot depth, side setback and rear setback requirements for residential development pursuant to California Government Code § 65852.21 and § 66411.7.
Minimum rear setback
25 ft
See note 16 below the table in the code.
§ 19.100.040 · code text
Table row “C. Rear 5, 16”, column “RA-5”: 25 ft. 2
Note 16: See Chapter 18.085 (Urban Lot Splits) of the Subdivision Code and Chapter 19.443 (Two-Unit Developments) of this Title for density, lot area, lot width, lot depth, side setback and rear setback requirements for residential development pursuant to California Government Code § 65852.21 and § 66411.7.
Minimum lot size
5 Acres
§ 19.100.040 · code text
Table row “Lot Area - Minimum (Net) 16”, column “RA-5”: 5 Acres 2,9,14
Maximum lot coverage
30%
§ 19.100.040 · code text
Table row “Lot Coverage - Maximum”, column “RA-5”: 30%
Maximum density
0.20 dwelling units per gross acre
§ 19.100.040 · code text
Table row “Density - Maximum (Dwelling Units per Gross Acre) 1,15, 16”, column “RA-5”: 0.20

Not on this page

We did not find a general FAR limit for RA-5 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 RA-5 zone?

35 ft — Riverside Municipal Code § 19.100.040.

What is the maximum number of stories in Riverside's RA-5 zone?

2 stories — Riverside Municipal Code § 19.100.040.

What is the minimum front setback in Riverside's RA-5 zone?

40 ft — Riverside Municipal Code § 19.100.040.

What is the minimum side setback in Riverside's RA-5 zone?

20 ft — Riverside Municipal Code § 19.100.040.

What is the minimum rear setback in Riverside's RA-5 zone?

25 ft — Riverside Municipal Code § 19.100.040.

General information, not legal advice.

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