Diamond Bar · Land use · Private school
Where is a private school allowed in Diamond Bar?
In Diamond Bar, a private school is allowed in 2 base zones (OS and REC), needs a conditional use permit in 12 (RR, RL, RLM, RM, RMH and 7 more) and not allowed in 3 (Diamond Bar use tables, read October 2026).
Key points
- Allowed: OS and REC
- Needs a permit: RR, RL, RLM, RM, RMH, RH, RH-30, OP and 4 more
- Not allowed: C-3, I and AG
Find your lot's zone on the city zoning map, then read its row. Every status below was read from the Diamond Bar 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 private school can go
Diamond Bar's code calls this use “Schools, public and private (Table 2-3); Schools, private (Table 2-5); Schools—Private (Table 2-6); Schools—Public and private (Table 2-8)”. 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 |
|---|---|---|
| OS | Allowed Code row: “Schools—Public and private” | § 22.12.030 |
| REC | Allowed Code row: “Schools—Public and private” | § 22.12.030 |
| RR | Needs a conditional use permit Code row: “Schools, public and private” | § 22.08.030 |
| RL | Needs a conditional use permit Code row: “Schools, public and private” | § 22.08.030 |
| RLM | Needs a conditional use permit Code row: “Schools, public and private” | § 22.08.030 |
| RM | Needs a conditional use permit Code row: “Schools, public and private” | § 22.08.030 |
| RMH | Needs a conditional use permit Code row: “Schools, public and private” | § 22.08.030 |
| RH | Needs a conditional use permit Code row: “Schools, public and private” | § 22.08.030 |
| RH-30 | Needs a conditional use permit Code row: “Schools, public and private” | § 22.08.030 |
| OP | Needs a conditional use permit Code row: “Schools, private” | § 22.10.030 |
| OB OB (printed 'OB (3)'; note 3 is the antenna note) | Needs a conditional use permit Code row: “Schools, private” | § 22.10.030 |
| CO | Needs a conditional use permit Code row: “Schools, private” | § 22.10.030 |
| C-1 | Needs a conditional use permit Code row: “Schools—Private” | § 22.10.030 |
| C-2 | Needs a conditional use permit Code row: “Schools—Private” | § 22.10.030 |
Zones where it is not allowed
What else applies
- Public schools are P in the office and C-1/C-2 zones; trade schools and specialized education are separate rows.
- Not covered here: Residential (Table 2-3), office (Table 2-5) and special purpose (Table 2-8) tables have no Emergency shelters row, so the use is not listed there (blank-equals-not-allowed rule; see 22.04.020(h), text not in packet).; TCSP and SP districts follow their specific plans.; Table 2-3 does not list the mixed-use (TCSP) and specific plan (SP) districts.. Overlay zones and specific plans can also change the answer.
Other uses in Diamond Bar
Who this affects
Frequently asked questions
Can I have a private school in the RR zone in Diamond Bar?
Only with a conditional use permit. Diamond Bar's use table lists it that way in RR (§ 22.08.030).
Can I have a private school in the C-3 zone in Diamond Bar?
No. Diamond Bar's use table does not allow it in C-3 (§ 22.10.030).
Can I have a private school in the OS zone in Diamond Bar?
Yes. Diamond Bar's use table lists it as allowed in OS (§ 22.12.030).
General information, not legal advice.
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