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San Dimas · Zoning · C-N

San Dimas C-N zoning: height, setbacks and lot size

In San Dimas's C-N zone, generally buildings can be up to 30 ft (2 stories) tall, the front setback is 10 ft and the minimum lot size is No minimum required, with the conditions listed below (San Dimas code, read October 2026).

Key points

  • Maximum building height: 30 ft (The limit is two stories or 30 ft, whichever is less.)
  • Maximum number of stories: 2 stories
  • Minimum front setback: 10 ft (when a lot or parcel abuts a street)
  • Minimum lot size: No minimum required
  • Maximum lot coverage: 35%

C-N (Commercial-Neighborhood Zone) is a zoning district in San Dimas. Every value below was read from the San Dimas 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 C-N

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
Applies: The limit is two stories or 30 ft, whichever is less.
§ 18.96.050 · code text
No buildings or structures erected in this zone shall have a height greater than two stories or thirty feet, whichever is less.
Maximum number of stories
2 stories
§ 18.96.050 · code text
No buildings or structures erected in this zone shall have a height greater than two stories or thirty feet, whichever is less.
Minimum front setback
10 ft
Applies: when a lot or parcel abuts a street
§ 18.96.050 · code text
When a lot or parcel in the C-N zone abuts a street there shall be a yard of not less than ten feet.
Minimum lot size
No minimum required
§ 18.96.050 · code text
No minimum required.
Maximum lot coverage
35%
§ 18.96.050 · code text
The building site coverage shall not exceed thirty-five percent of any lot or parcel.

When a different number applies

The code sets other values for particular lots, buildings or locations in C-N:

  • Minimum side setback: 30 ft — Buffer yard along a residential district boundary; none if a street lies between the districts. § 18.96.050
  • Minimum rear setback: 30 ft — Buffer yard along a residential district boundary; none if a street lies between the districts. § 18.96.050

Not on this page

We did not find a general side setback, rear setback, FAR, density limit for C-N in the zoning tables we read. The code may still set one elsewhere — check the San Dimas Municipal Code.

Other San Dimas zoning districts

Who this affects

HomeownersArchitects and designersDevelopersReal estate agents

Frequently asked questions

What is the maximum building height in San Dimas's C-N zone?

30 ft (the limit is two stories or 30 ft, whichever is less) — San Dimas Municipal Code § 18.96.050.

What is the maximum number of stories in San Dimas's C-N zone?

2 stories — San Dimas Municipal Code § 18.96.050.

What is the minimum front setback in San Dimas's C-N zone?

10 ft (when a lot or parcel abuts a street) — San Dimas Municipal Code § 18.96.050.

What is the minimum lot size in San Dimas's C-N zone?

No minimum required — San Dimas Municipal Code § 18.96.050.

What is the maximum lot coverage in San Dimas's C-N zone?

35% — San Dimas Municipal Code § 18.96.050.

General information, not legal advice.

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