Irvine · Land use · Single-family home
Where is a single-family home allowed in Irvine?
In Irvine, a single-family home is allowed in 6 base zones (2.1, 2.2, 2.3, 2.4, 2.5 and 1 more), needs a conditional use permit in 2 (3.1 and 5.3, all with a condition) and not allowed in 20 (Irvine use tables, read October 2026).
Key points
- Allowed: 2.1, 2.2, 2.3, 2.4, 2.5 and 8.1
- Needs a permit: 3.1 and 5.3
- Not allowed: 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.9, 4.1 and 12 more
Find your lot's zone on the city zoning map, then read its row. Every status below was read from the Irvine Municipal Code use tables (read October 2026). Base zones only. General information, not legal advice — check with the city before you apply.
Zones where a single-family home can go
Irvine's code calls this use “Residential, single-family detached”. Each row links to the use table it comes from. A zone marked “see note” has a condition in the code, for example upper floors only or a larger lot.
| Zone | Status | Code |
|---|---|---|
| 2.1 Estate Density Residential (0 — 1) | Allowed | Division 3 — GENERAL DEVELOPMENT STANDARDS AND LAND USE REGULATIONS |
| 2.2 Low-Density Residential (0 — 6.5) | Allowed | Division 3 — GENERAL DEVELOPMENT STANDARDS AND LAND USE REGULATIONS |
| 2.3 Medium-Density Residential (0 — 12.5) | Allowed | Division 3 — GENERAL DEVELOPMENT STANDARDS AND LAND USE REGULATIONS |
| 2.4 Medium-High-Density Residential (0 — 31) | Allowed | Division 3 — GENERAL DEVELOPMENT STANDARDS AND LAND USE REGULATIONS |
| 2.5 High-Density Residential (0 — 50) | Allowed | Division 3 — GENERAL DEVELOPMENT STANDARDS AND LAND USE REGULATIONS |
| 8.1 Trails and Transit Oriented Development | Allowed | Division 3 — GENERAL DEVELOPMENT STANDARDS AND LAND USE REGULATIONS |
| 3.1 Multi-Use | Needs a conditional use permit — see note Note 127: Prohibited in 3.1I. | Division 3 — GENERAL DEVELOPMENT STANDARDS AND LAND USE REGULATIONS |
| 5.3 IBC Residential | Needs a conditional use permit — see note Note 33: Residential trip generation rates apply to this use. Consult Section 9-36-8.B.3 (IBC General Land Uses) for more information. | Division 3 — GENERAL DEVELOPMENT STANDARDS AND LAND USE REGULATIONS |
Zones where it is not allowed
What else applies
- Accessory dwelling units are a separate row ("Residential, accessory dwelling unit", P in 2.1-2.5, 3.1, 8.1) and are not used here. Planning Areas 4, 5, 34 and 38 have their own matrices (S7, S8, S34, S36) that differ from Division 3 (e.g. PA 4 lists child care and churches as P in 2.3/2.4/3.1/4.2/4.9); PA 33 (S33) has narrative rules.
- State law: State law lets most single-family lots add an ADU and a JADU (California ADU law) and a second home or a lot split under SB 9 (Gov. Code § 65852.21).
- Not covered here: Planning Areas 4, 5, 34, 38 have their own land use matrices (S7, S8, S34, S36) and PA 33 has a narrative list (S33); Sec. 3-3-1 says it does not cover PAs 4, 5, 33, 34, 38. Not extracted.; Categories 4.5, 4.6, 4.7, 4.8: the Division 3 matrix cells only say "Section 3-37-23/25/26/27"; the district chapters for 4.x-9.x (Sec. 3-37-18 onward) are not in the packet.; Category 7.1 Military: only a reference cell ("Section 3-37-38").; Division 3 matrix pages 3, 4 (rows Dairy..Home occupation permit) and 9, 10 (Retail home improvement..Transitional housing) have shifted columns beyond 4.4; uses read from them are limited to categories 1.1-4.4, or dropped.. Overlay zones and specific plans can also change the answer.
Other uses in Irvine
Who this affects
Frequently asked questions
Can I have a single-family home in the 3.1 zone in Irvine?
Only with a conditional use permit. Irvine's use table lists it that way in 3.1 (Multi-Use) (Division 3 — GENERAL DEVELOPMENT STANDARDS AND LAND USE REGULATIONS). The code adds a condition: “Prohibited in 3.1I.”
Can I have a single-family home in the 1.1 zone in Irvine?
No. Irvine's use table does not allow it in 1.1 (Exclusive Agriculture) (Division 3 — GENERAL DEVELOPMENT STANDARDS AND LAND USE REGULATIONS).
Can I have a single-family home in the 2.1 zone in Irvine?
Yes. Irvine's use table lists it as allowed in 2.1 (Estate Density Residential (0 — 1)) (Division 3 — GENERAL DEVELOPMENT STANDARDS AND LAND USE REGULATIONS).
General information, not legal advice.
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