Arcadia · Zoning · R-3
Arcadia R-3 zoning: height, setbacks and lot size
In Arcadia's R-3 zone, buildings can be up to 30 ft tall, the front setback is 25 ft and the minimum lot size is 10,000 sq ft (Arcadia code, read October 2026).
Key points
- Maximum building height: 30 ft
- Minimum front setback: 25 ft
- Minimum side setback: 10 ft
- Minimum rear setback: 10 ft
- Minimum lot size: 10,000 sq ft
- Maximum density: 1 unit per 1,089 sq ft of lot area (40 units/acre)
R-3 is a zoning district in Arcadia. Every value below was read from the Arcadia 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 R-3
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 | 30 ft § 9102.01.090 · code textTable row “Maximum Height”, column “R-3”: 30 ft |
|---|---|
| Minimum front setback | 25 ft § 9102.01.090 · code textTable row “Front”, column “R-3”: 25 ft |
| Minimum side setback | 10 ft § 9102.01.090 · code textTable row “Side Interior”, column “R-3”: 10 ft |
| Minimum rear setback | 10 ft § 9102.01.090 · code textTable row “Rear”, column “R-3”: 10 ft |
| Minimum lot size | 10,000 sq ft § 9102.01.090 · code textTable row “Minimum Lot Area (sq ft)”, column “R-3”: 10,000 |
| Maximum density | 1 unit per 1,089 sq ft of lot area (40 units/acre) § 9102.01.090 · code textTable row “Maximum Density”, column “R-3”: 1 unit per 1,089 sf of lot area (40 units/acre) |
Uses in R-3
Uses the code's use tables allow in R-3, or allow with a permit. Each links to its page with the code section.
- Single-family home — Allowed
- Apartment building — Allowed
- Residential care home (7 or more) — Allowed
- Child care center — Needs a conditional use permit
- Private school — Needs a conditional use permit — see note
Not on this page
We did not find a general stories, lot coverage, FAR limit for R-3 in the zoning tables we read. The code may still set one elsewhere — check the Arcadia Municipal Code.
Other Arcadia zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Arcadia's R-3 zone?
30 ft — Arcadia Municipal Code § 9102.01.090.
What is the minimum front setback in Arcadia's R-3 zone?
25 ft — Arcadia Municipal Code § 9102.01.090.
What is the minimum side setback in Arcadia's R-3 zone?
10 ft — Arcadia Municipal Code § 9102.01.090.
What is the minimum rear setback in Arcadia's R-3 zone?
10 ft — Arcadia Municipal Code § 9102.01.090.
What is the minimum lot size in Arcadia's R-3 zone?
10,000 sq ft — Arcadia Municipal Code § 9102.01.090.
General information, not legal advice.
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