Arcadia · Zoning · R-M
Arcadia R-M zoning: height, setbacks and lot size
In Arcadia's R-M zone, generally buildings can be up to 25 ft for lots less than 71-foot lot width; up to 35 ft based on lot width (2 stories) tall, the front setback is 25 ft and the minimum lot size is 15,000 sq ft, with the conditions listed below (Arcadia code, read October 2026).
Key points
- Maximum building height: 25 ft for lots less than 71-foot lot width; up to 35 ft based on lot width (lot width)
- Maximum number of stories: 2 stories
- Minimum front setback: 25 ft (Table value. Section 9102.01.040 sets the average of the two nearest developed lots on the same street.)
- Minimum side setback: 10 ft or 10% of lot width, whichever is greater, max 15 ft (Interior side, first or single story.)
- Minimum rear setback: 25 ft (First or single story. Add 1 ft per story for each 10 ft of lot depth over 150 ft.)
- Minimum lot size: 15,000 sq ft
- Maximum lot coverage: 45% (1-story dwellings)
- Maximum density: 1 unit per lot (Except as allowed for accessory dwelling units.)
R-M (Single-Family Residential) 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-M
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 | 25 ft for lots less than 71-foot lot width; up to 35 ft based on lot width Applies: lot width § 9102.01.030 · code textTable row “Maximum Height”, column “R-M”: 25 ft for lots less than 71-foot lot width; an additional 1 ft in height for every additional 1 ft in lot width up to 75 ft lot (30 ft height). 80-85 ft lot width: 31 ft 85'-1"-90 ft lot width: 32 ft 90'-1"-95 ft lot width: 33 ft 95'-1"-100 ft lot width: 34 ft 100'-1"+ ft lot width: 35 ft |
|---|---|
| Maximum number of stories | 2 stories § 9102.01.030 · code textTable row “Maximum Number of Stories”, column “R-M”: 2 stories |
| Minimum front setback | 25 ft Applies: Table value. Section 9102.01.040 sets the average of the two nearest developed lots on the same street. § 9102.01.030 · code textTable row “Front”, column “R-M”: 25 ft |
| Minimum side setback | 10 ft or 10% of lot width, whichever is greater, max 15 ft Applies: Interior side, first or single story. § 9102.01.030 · code textTable row “Interior”, column “R-M”: 10 ft or 10% of lot width, whichever is greater, but not to exceed 15 ft as a required setback |
| Minimum rear setback | 25 ft Applies: First or single story. Add 1 ft per story for each 10 ft of lot depth over 150 ft. § 9102.01.030 · code textTable row “Rear - first or single story”, column “R-M”: 25 ft |
| Minimum lot size | 15,000 sq ft § 9102.01.030 · code textTable row “Minimum Lot Area (sq ft)”, column “R-M”: 15,000 |
| Maximum lot coverage | 45% Applies: 1-story dwellings § 9102.01.030 · code textTable row “1-story dwellings”, column “R-M”: 45% |
| Maximum density | 1 unit per lot Applies: Except as allowed for accessory dwelling units. § 9102.01.030 · code textTable row “Maximum Density”, column “R-M”: 1 unit per lot |
Uses in R-M
Uses the code's use tables allow in R-M, or allow with a permit. Each links to its page with the code section.
- Single-family home — Allowed
- Residential care home (7 or more) — Allowed
- Private school — Needs a conditional use permit — see note
When a different number applies
The code sets other values for particular lots, buildings or locations in R-M:
- Minimum side setback: 15 ft or 20% of lot width, whichever is greater — second story § 9102.01.030
- Minimum rear setback: 35 ft — second story § 9102.01.030
- Maximum lot coverage: 35% — 2-story dwellings § 9102.01.030
Not on this page
We did not find a general FAR limit for R-M 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-M zone?
25 ft for lots less than 71-foot lot width; up to 35 ft based on lot width (lot width) — Arcadia Municipal Code § 9102.01.030.
What is the maximum number of stories in Arcadia's R-M zone?
2 stories — Arcadia Municipal Code § 9102.01.030.
What is the minimum front setback in Arcadia's R-M zone?
25 ft (table value. Section 9102.01.040 sets the average of the two nearest developed lots on the same street) — Arcadia Municipal Code § 9102.01.030.
What is the minimum side setback in Arcadia's R-M zone?
10 ft or 10% of lot width, whichever is greater, max 15 ft (interior side, first or single story) — Arcadia Municipal Code § 9102.01.030.
What is the minimum rear setback in Arcadia's R-M zone?
25 ft (first or single story. Add 1 ft per story for each 10 ft of lot depth over 150 ft) — Arcadia Municipal Code § 9102.01.030.
General information, not legal advice.
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