Tustin · Zoning · R4
Tustin R4 zoning: height, setbacks and lot size
In Tustin's R4 zone, buildings can be up to 35 ft (2 stories) tall, the front setback is 20 ft and the minimum lot size is 7,200 sq. ft. (Tustin code, read October 2026).
Key points
- Maximum building height: 35 ft
- Maximum number of stories: 2 stories
- Minimum front setback: 20 ft
- Minimum side setback: 5 ft
- Minimum rear setback: 25 ft
- Minimum lot size: 7,200 sq. ft.
R4 (Suburban Residential District) is a zoning district in Tustin. Every value below was read from the Tustin 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 R4
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 § 9220 · code textTable row “R4 Suburban Residential District (Sec. 9228)”, column “Building Height”: 2 stories or 35 feet (See 9228c) |
|---|---|
| Maximum number of stories | 2 stories § 9220 · code textTable row “R4 Suburban Residential District (Sec. 9228)”, column “Building Height”: 2 stories or 35 feet (See 9228c) |
| Minimum front setback | 20 ft See note 1 below the table in the code. § 9220 · code textTable row “R4 Suburban Residential District (Sec. 9228)”, column “Front Yard (1)”: 20 feet Note 1: If front on to secondary or primary highway refer to section 9271u. |
| Minimum side setback | 5 ft See note 1 below the table in the code. § 9220 · code textTable row “R4 Suburban Residential District (Sec. 9228)”, column “Interior Side Yard (1)”: 5 feet Note 1: If front on to secondary or primary highway refer to section 9271u. |
| Minimum rear setback | 25 ft See note 1 below the table in the code. § 9220 · code textTable row “R4 Suburban Residential District (Sec. 9228)”, column “Rear Yard (1)”: 25 feet Note 1: If front on to secondary or primary highway refer to section 9271u. |
| Minimum lot size | 7,200 sq. ft. § 9220 · code textTable row “R4 Suburban Residential District (Sec. 9228)”, column “Minimum Lot Area/Per Family Unit”: 7,200 sq. ft./3,000 sq. ft. |
Not on this page
We did not find a general lot coverage, FAR, density limit for R4 in the zoning tables we read. The code may still set one elsewhere — check the Tustin Municipal Code.
Other Tustin zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Tustin's R4 zone?
35 ft — Tustin Municipal Code § 9220.
What is the maximum number of stories in Tustin's R4 zone?
2 stories — Tustin Municipal Code § 9220.
What is the minimum front setback in Tustin's R4 zone?
20 ft — Tustin Municipal Code § 9220.
What is the minimum side setback in Tustin's R4 zone?
5 ft — Tustin Municipal Code § 9220.
What is the minimum rear setback in Tustin's R4 zone?
25 ft — Tustin Municipal Code § 9220.
General information, not legal advice.
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