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Orange County · Zoning · R1

Orange County R1 zoning: height, setbacks and lot size

In Orange County's R1 zone, buildings can be up to 35 ft tall and the front setback is 20 ft (Orange County code, read October 2026).

Key points

  • Maximum building height: 35 ft
  • Minimum front setback: 20 ft
  • Minimum side setback: 5 ft
  • Minimum rear setback: 25 ft (where the rear opens on an alley, private street, park or beach, half its width counts toward the setback, but never under 15 ft)
  • Maximum density: 1 unit per 7,200 sq ft

R1 is a zoning district in Orange County. Every value below was read from the Orange County 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 R1

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
§ 7-9-31.3 · code text
Table row “Maximum Building Height (ft)”, column “R1”: 35
Minimum front setback
20 ft
§ 7-9-31.3 · code text
Table row “Front Setback From Ultimate Street R/W Line”, column “R1”: 20
Minimum side setback
5 ft
§ 7-9-31.3 · code text
Table row “Side Setback From Property Line Not Abutting Street Rear”, column “R1”: 5
Minimum rear setback
25 ft
Applies: where the rear opens on an alley, private street, park or beach, half its width counts toward the setback, but never under 15 ft
§ 7-9-31.3 · code text
Table row “Rear Setback From Property Line Not Abutting Street”, column “R1”: 25 or D
Maximum density
1 unit per 7,200 sq ft
§ 7-9-31.3 · code text
Table row “Minimum Building Site Area Per Unit (sq ft)”, column “R1”: 7,200

Uses in R1

Uses the code's use tables allow in R1, or allow with a permit. Each links to its page with the code section.

Not on this page

We did not find a general stories, lot size, lot coverage, FAR limit for R1 in the zoning tables we read. The code may still set one elsewhere — check the Orange County Municipal Code.

Other Orange County zoning districts

Who this affects

HomeownersArchitects and designersDevelopersReal estate agents

Frequently asked questions

What is the maximum building height in Orange County's R1 zone?

35 ft — Orange County Municipal Code § 7-9-31.3.

What is the minimum front setback in Orange County's R1 zone?

20 ft — Orange County Municipal Code § 7-9-31.3.

What is the minimum side setback in Orange County's R1 zone?

5 ft — Orange County Municipal Code § 7-9-31.3.

What is the minimum rear setback in Orange County's R1 zone?

25 ft (where the rear opens on an alley, private street, park or beach, half its width counts toward the setback, but never under 15 ft) — Orange County Municipal Code § 7-9-31.3.

What is the maximum density in Orange County's R1 zone?

1 unit per 7,200 sq ft — Orange County Municipal Code § 7-9-31.3.

General information, not legal advice.

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