Lake County · Zoning · R3
Lake County R3 zoning: height, setbacks and lot size
In Lake County's R3 zone, generally buildings can be up to 45 ft tall, the front setback is 20 ft from lot line or 45 ft from roadway centerline, whichever is greater and the minimum lot size is 10,000 sq ft, with the conditions listed below (Lake County code, read October 2026).
Key points
- Maximum building height: 45 ft (principal structure; a major use permit may allow a greater height)
- Minimum front setback: 20 ft from lot line or 45 ft from roadway centerline, whichever is greater
- Minimum side setback: 5 ft, plus 5 ft for every story above one (the added 5 ft per extra story applies to a duplex or multi-family dwelling, measured from the wall of the upper portion)
- Minimum rear setback: 20 ft
- Minimum lot size: 10,000 sq ft (Public water and sewer)
- Maximum lot coverage: 40% (One story dwelling)
R3 (MULTI-FAMILY RESIDENTIAL OR "R3" DISTRICT) is a zoning district in Lake County. Every value below was read from the Lake County 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 R3
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 | 45 ft Applies: principal structure; a major use permit may allow a greater height § 12.17 · code text(a) Principal structure: Forty-five (45) feet; and height limit may be increased subject to first obtaining a major use permit in each case. |
|---|---|
| Minimum front setback | 20 ft from lot line or 45 ft from roadway centerline, whichever is greater § 12.16 · code text(a) Front yard: Twenty (20) feet from lot line, or forty-five (45) feet from centerline of roadway, whichever is greater. Yards abutting streets are front yards. |
| Minimum side setback | 5 ft, plus 5 ft for every story above one Applies: the added 5 ft per extra story applies to a duplex or multi-family dwelling, measured from the wall of the upper portion § 12.16 · code text(c) Side yard: Five (5) feet from lot line for a one story structure, and an additional five (5) feet for every story above one for a duplex or a multi-family dwelling, measured from the wall of the portion of the structure that exceeds one story. |
| Minimum rear setback | 20 ft § 12.16 · code text(b) Rear yard: Twenty (20) feet from lot line. |
| Minimum lot size | 10,000 sq ft Applies: Public water and sewer § 12.12 · code text(a) Public water and sewer: Ten thounsand (10,000) square feet. |
| Maximum lot coverage | 40% Applies: One story dwelling § 12.15 · code text(a) One story dwelling: Fourty (40) percent. |
When a different number applies
The code sets other values for particular lots, buildings or locations in R3:
Not on this page
We did not find a general stories, FAR, density limit for R3 in the zoning tables we read. The code may still set one elsewhere — check the Lake County Municipal Code.
Other Lake County zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Lake County's R3 zone?
45 ft (principal structure; a major use permit may allow a greater height) — Lake County Municipal Code § 12.17.
What is the minimum front setback in Lake County's R3 zone?
20 ft from lot line or 45 ft from roadway centerline, whichever is greater — Lake County Municipal Code § 12.16.
What is the minimum side setback in Lake County's R3 zone?
5 ft, plus 5 ft for every story above one (the added 5 ft per extra story applies to a duplex or multi-family dwelling, measured from the wall of the upper portion) — Lake County Municipal Code § 12.16.
What is the minimum rear setback in Lake County's R3 zone?
20 ft — Lake County Municipal Code § 12.16.
What is the minimum lot size in Lake County's R3 zone?
10,000 sq ft (public water and sewer) — Lake County Municipal Code § 12.12.
General information, not legal advice.
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