Sunnyvale · Zoning · M-3
Sunnyvale M-3 zoning: height, setbacks and lot size
In Sunnyvale's M-3 zone, the front setback is 25 ft and the minimum lot size is 22,500 sq ft (Sunnyvale code, read October 2026).
Key points
- Minimum front setback: 25 ft
- Minimum side setback: 20 ft (total of both side yards added together)
- Minimum rear setback: None required
- Minimum lot size: 22,500 sq ft
M-3 is a zoning district in Sunnyvale. Every value below was read from the Sunnyvale 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 M-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.
| Minimum front setback | 25 ft § 19.34.030 · code textTable row “M-3 7”, column “Front Yard Minimum 1, 2”: 25 |
|---|---|
| Minimum side setback | 20 ft Applies: total of both side yards added together § 19.34.030 · code textTable row “M-3 7”, column “Side Yards Total 1, 3, 4”: 20 |
| Minimum rear setback | None required § 19.34.030 · code textTable row “M-3 7”, column “Rear Yard 1, 6”: None |
| Minimum lot size | 22,500 sq ft § 19.30.020 · code textTable row “M-3”, column “Lot Area Minimum (Square feet)”: 22,500 |
Not on this page
We did not find a general height, stories, lot coverage, FAR, density limit for M-3 in the zoning tables we read. The code may still set one elsewhere — check the Sunnyvale Municipal Code.
Other Sunnyvale zoning districts
Who this affects
Frequently asked questions
What is the minimum front setback in Sunnyvale's M-3 zone?
25 ft — Sunnyvale Municipal Code § 19.34.030.
What is the minimum side setback in Sunnyvale's M-3 zone?
20 ft (total of both side yards added together) — Sunnyvale Municipal Code § 19.34.030.
What is the minimum rear setback in Sunnyvale's M-3 zone?
None required — Sunnyvale Municipal Code § 19.34.030.
What is the minimum lot size in Sunnyvale's M-3 zone?
22,500 sq ft — Sunnyvale Municipal Code § 19.30.020.
General information, not legal advice.
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