Grand Terrace · Land use · Single-family home
Where is a single-family home allowed in Grand Terrace?
In Grand Terrace, a single-family home is allowed in 6 base zones (RH, R1-20, R1-10, R1-7.2, R2 and 1 more, 2 with a condition) and not allowed in 2 (Grand Terrace use tables, read October 2026).
Key points
- Allowed: RH, R1-20, R1-10, R1-7.2, R2 and R3
- Not allowed: R3-S and R3-20/R3-24
Find your lot's zone on the city zoning map, then read its row. Every status below was read from the Grand Terrace 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
Grand Terrace's code calls this use “Single-Family (Detached), Full Sized”. 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 |
|---|---|---|
| RH | Allowed | § 18.10.030 |
| R1-20 | Allowed | § 18.10.030 |
| R1-10 Low Density Single Family Residential | Allowed | § 18.10.030 |
| R1-7.2 | Allowed | § 18.10.030 |
| R2 | Allowed — see note Note a: A second single-family detached unit (full-sized single-family detached dwelling) shall be permitted in the R2 zone provided that the lot or parcel in question meets the minimum area requirement for the R2 zone and that said lot or parcel is developed with no more than one single-family detached dwelling. A site and architectural review application for the second- family detached unit in accordance with Chapter 18.63 of the Zoning Code shall be required to be approved prior to the issuance of building permits. In addition, all development standards of the underlying zone must be adhered to; and any division in ownership among the structures on the lot or parcel in question shall conform to the subdivision laws of the state and city. | § 18.10.030 |
| R3 | Allowed — see note Note b: A second-family detached unit (full sized single-family detached dwelling) shall be permitted in the R3 zone provided that the lot or parcel in question meets the minimum area requirements for the R3 zone and that said lot or parcel is developed with no more than one single-family detached dwelling. A site and architectural review application for the second- family detached unit in accordance with Chapter 18.63 of the Zoning Code shall be required to be approved prior to the issuance of building permits. In addition, all development standards of the underlying zone must be adhered to; and any division in ownership among the structures on the lot or parcel in question shall conform to the subdivision laws of the state and city. | § 18.10.030 |
Zones where it is not allowed
What else applies
- 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: AG overlay Table 18.53.020 (not in the text); blank cells in the residential table are left out; the residential table does not say blank = prohibited. Overlay zones and specific plans can also change the answer.
Other uses in Grand Terrace
Who this affects
Frequently asked questions
Can I have a single-family home in the R3-S zone in Grand Terrace?
No. Grand Terrace's use table does not allow it in R3-S (§ 18.10.030).
Can I have a single-family home in the RH zone in Grand Terrace?
Yes. Grand Terrace's use table lists it as allowed in RH (§ 18.10.030).
General information, not legal advice.
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