Highland · Zoning · R-4
Highland R-4 zoning: height, setbacks and lot size
In Highland's R-4 zone, buildings can be up to 55 ft (4 stories and loft) tall, the front setback is 25 ft and the minimum lot size is 1 acre (Highland code, read October 2026).
Key points
- Maximum building height: 55 ft
- Maximum number of stories: 4 stories and loft
- Minimum front setback: 25 ft
- Minimum side setback: 15 ft
- Minimum rear setback: 15 ft
- Minimum lot size: 1 acre
- Maximum lot coverage: No limit
- Maximum density: 30 DUs per gross acre
R-4 is a zoning district in Highland. Every value below was read from the Highland 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-4
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 | 55 ft § 16.16.040 · code textTable row “10. Maximum height for buildings and structures”, column “R-4”: 55 ft. (4 stories and loft) |
|---|---|
| Maximum number of stories | 4 stories and loft § 16.16.040 · code textTable row “10. Maximum height for buildings and structures”, column “R-4”: 55 ft. (4 stories and loft) |
| Minimum front setback | 25 ft § 16.16.040 · code textTable row “5. Minimum front yard setback”, column “R-4”: 25 ft. g |
| Minimum side setback | 15 ft § 16.16.040 · code textTable row “6. Minimum interior side yard setback h”, column “R-4”: 15 ft. g |
| Minimum rear setback | 15 ft § 16.16.040 · code textTable row “8. Minimum rear yard setback i”, column “R-4”: 15 ft. |
| Minimum lot size | 1 acre § 16.16.040 · code textTable row “2. Minimum building site (net area in sq. ft.)”, column “R-4”: 1 acre |
| Maximum lot coverage | No limit § 16.16.040 · code textTable row “9. Maximum lot coverage”, column “R-4”: None |
| Maximum density | 30 DUs per gross acre § 16.16.040 · code textTable row “1. Maximum density (DUs per gross acre)”, column “R-4”: Min. 20 Max. 30 |
Uses in R-4
Uses the code's use tables allow in R-4, or allow with a permit. Each links to its page with the code section.
- Apartment building — Needs a staff review permit
Not on this page
We did not find a general FAR limit for R-4 in the zoning tables we read. The code may still set one elsewhere — check the Highland Municipal Code.
Other Highland zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Highland's R-4 zone?
55 ft — Highland Municipal Code § 16.16.040.
What is the maximum number of stories in Highland's R-4 zone?
4 stories and loft — Highland Municipal Code § 16.16.040.
What is the minimum front setback in Highland's R-4 zone?
25 ft — Highland Municipal Code § 16.16.040.
What is the minimum side setback in Highland's R-4 zone?
15 ft — Highland Municipal Code § 16.16.040.
What is the minimum rear setback in Highland's R-4 zone?
15 ft — Highland Municipal Code § 16.16.040.
General information, not legal advice.
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