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Ione · Zoning · C-3

Ione C-3 zoning: height, setbacks and lot size

In Ione's C-3 zone, buildings can be up to 50 ft (4 stories) tall, the front setback is 20 ft and the minimum lot size is No minimum (Ione code, read October 2026).

Key points

  • Maximum building height: 50 ft
  • Maximum number of stories: 4 stories
  • Minimum front setback: 20 ft
  • Minimum side setback: 0 ft
  • Minimum rear setback: 0 ft (25 ft if the rear property line abuts a residential zoning district; the city may require more after site plan review)
  • Minimum lot size: No minimum
  • Maximum floor area ratio (FAR): 1.0

C-3 is a zoning district in Ione. Every value below was read from the Ione 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-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
50 ft
§ 17.24.040 · code text
Table row “Height (maximum)”, column “C-3 3”: 50 ft./ 4 stories
Maximum number of stories
4 stories
§ 17.24.040 · code text
Table row “Height (maximum)”, column “C-3 3”: 50 ft./ 4 stories
Minimum front setback
20 ft
§ 17.24.040 · code text
Table row “Front and Street Side”, column “C-3 3”: 20 ft.
Minimum side setback
0 ft
§ 17.24.040 · code text
Table row “Side”, column “C-3 3”: 0 ft.
Minimum rear setback
0 ft
Applies: 25 ft if the rear property line abuts a residential zoning district; the city may require more after site plan review
§ 17.24.040 · code text
Table row “Rear”, column “C-3 3”: 0 ft. 1 ,2
Minimum lot size
No minimum
§ 17.24.040 · code text
Table row “Minimum Lot Size”, column “C-3 3”: No Minimum
Maximum floor area ratio (FAR)
1.0
§ 17.24.040 · code text
Table row “Maximum Floor Area Ratio”, column “C-3 3”: 1.0

Uses in C-3

Uses the code's use tables allow in C-3, or allow with a permit. Each links to its page with the code section.

  • Child care center — Needs a site plan review (administrative or discretionary, per section 17.10.030)
  • Kennel — Needs a site plan review (administrative or discretionary, per section 17.10.030)

Not on this page

We did not find a general lot coverage, density limit for C-3 in the zoning tables we read. The code may still set one elsewhere — check the Ione Municipal Code.

Other Ione zoning districts

Who this affects

HomeownersArchitects and designersDevelopersReal estate agents

Frequently asked questions

What is the maximum building height in Ione's C-3 zone?

50 ft — Ione Municipal Code § 17.24.040.

What is the maximum number of stories in Ione's C-3 zone?

4 stories — Ione Municipal Code § 17.24.040.

What is the minimum front setback in Ione's C-3 zone?

20 ft — Ione Municipal Code § 17.24.040.

What is the minimum side setback in Ione's C-3 zone?

0 ft — Ione Municipal Code § 17.24.040.

What is the minimum rear setback in Ione's C-3 zone?

0 ft (25 ft if the rear property line abuts a residential zoning district; the city may require more after site plan review) — Ione Municipal Code § 17.24.040.

General information, not legal advice.

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