Tustin · Zoning · R3
Tustin R3 zoning: height, setbacks and lot size
In Tustin's R3 zone, buildings can be up to 35 ft tall, the front setback is 15 ft and the minimum lot size is 7,000 sq. ft. (Tustin code, read October 2026).
Key points
- Maximum building height: 35 ft
- Minimum front setback: 15 ft
- Minimum side setback: 5 ft
- Minimum rear setback: 10 ft
- Minimum lot size: 7,000 sq. ft.
- Maximum lot coverage: 65%
R3 (Multiple Family 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 R3
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 See note 2 below the table in the code. § 9220 · code textTable row “R3 Multiple Family Residential District (2) (Sec. 9226)”, column “Building Height”: 35 feet (See 9226c) Note 2: If development is located within the Cultural Resources District (CR), refer to Section 9252j for additional standards. |
|---|---|
| Minimum front setback | 15 ft See notes 2, 1 below the table in the code. § 9220 · code textTable row “R3 Multiple Family Residential District (2) (Sec. 9226)”, column “Front Yard (1)”: 15 feet Note 2: If development is located within the Cultural Resources District (CR), refer to Section 9252j for additional standards. Note 1: If front on to secondary or primary highway refer to section 9271u. |
| Minimum side setback | 5 ft See notes 2, 1 below the table in the code. § 9220 · code textTable row “R3 Multiple Family Residential District (2) (Sec. 9226)”, column “Interior Side Yard (1)”: 5 feet Note 2: If development is located within the Cultural Resources District (CR), refer to Section 9252j for additional standards. Note 1: If front on to secondary or primary highway refer to section 9271u. |
| Minimum rear setback | 10 ft See notes 2, 1 below the table in the code. § 9220 · code textTable row “R3 Multiple Family Residential District (2) (Sec. 9226)”, column “Rear Yard (1)”: 10 feet Note 2: If development is located within the Cultural Resources District (CR), refer to Section 9252j for additional standards. Note 1: If front on to secondary or primary highway refer to section 9271u. |
| Minimum lot size | 7,000 sq. ft. See note 2 below the table in the code. § 9220 · code textTable row “R3 Multiple Family Residential District (2) (Sec. 9226)”, column “Minimum Lot Area/Per Family Unit”: 7,000 sq. ft./1,750 sq. ft. Note 2: If development is located within the Cultural Resources District (CR), refer to Section 9252j for additional standards. |
| Maximum lot coverage | 65% See note 2 below the table in the code. § 9220 · code textTable row “R3 Multiple Family Residential District (2) (Sec. 9226)”, column “Lot Coverage”: 65 percent Note 2: If development is located within the Cultural Resources District (CR), refer to Section 9252j for additional standards. |
Not on this page
We did not find a general stories, FAR, density limit for R3 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 R3 zone?
35 ft — Tustin Municipal Code § 9220.
What is the minimum front setback in Tustin's R3 zone?
15 ft — Tustin Municipal Code § 9220.
What is the minimum side setback in Tustin's R3 zone?
5 ft — Tustin Municipal Code § 9220.
What is the minimum rear setback in Tustin's R3 zone?
10 ft — Tustin Municipal Code § 9220.
What is the minimum lot size in Tustin's R3 zone?
7,000 sq. ft. — Tustin Municipal Code § 9220.
General information, not legal advice.
Ask about a Tustin property in R3
Ask GoCodebook what you can build at a specific address and get an answer that cites the section.
Ask your question