Tiburon · Zoning · R-1-B-A
Tiburon R-1-B-A zoning: height, setbacks and lot size
In Tiburon's R-1-B-A zone, buildings can be up to 30 ft tall, the front setback is 20 ft and the minimum lot size is 10,000 square feet (Tiburon code, read October 2026).
Key points
- Maximum building height: 30 ft
- Minimum front setback: 20 ft
- Minimum side setback: 6 ft
- Minimum rear setback: 20% of lot depth or 25 ft (whichever is less)
- Minimum lot size: 10,000 square feet
- Maximum lot coverage: 30% (for 2-story or multi-story development; 1-story development is limited by the maximum FAR instead)
- Maximum density: 4.4 du/acre
R-1-B-A is a zoning district in Tiburon. Every value below was read from the Tiburon 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-1-B-A
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 § 16-21.040 · code textTable row “R-1-B-A”, column “Primary”: 30 ft. |
|---|---|
| Minimum front setback | 20 ft § 16-21.040 · code textTable row “R-1-B-A”, column “Front”: 20 ft. |
| Minimum side setback | 6 ft § 16-21.040 · code textTable row “R-1-B-A”, column “Sides”: 6 ft. |
| Minimum rear setback | 20% of lot depth or 25 ft (whichever is less) § 16-21.040 · code textTable row “R-1-B-A”, column “Rear”: 20% of lot depth or 25 ft. (whichever is less) |
| Minimum lot size | 10,000 square feet § 16-21.040 · code textTable row “R-1-B-A”, column “Minimum Lot Area”: 10,000 square feet (s.f.) |
| Maximum lot coverage | 30% Applies: for 2-story or multi-story development; 1-story development is limited by the maximum FAR instead § 16-21.040 · code textTable row “R-1-B-A”, column “Maximum Lot Coverage”: 1-story development: same as max. FAR; 2-story or multi-story development: 30% |
| Maximum density | 4.4 du/acre § 16-21.040 · code textTable row “R-1-B-A”, column “Maximum Density”: 4.4 du/acre |
Not on this page
We did not find a general stories, FAR limit for R-1-B-A in the zoning tables we read. The code may still set one elsewhere — check the Tiburon Municipal Code.
Other Tiburon zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Tiburon's R-1-B-A zone?
30 ft — Tiburon Municipal Code § 16-21.040.
What is the minimum front setback in Tiburon's R-1-B-A zone?
20 ft — Tiburon Municipal Code § 16-21.040.
What is the minimum side setback in Tiburon's R-1-B-A zone?
6 ft — Tiburon Municipal Code § 16-21.040.
What is the minimum rear setback in Tiburon's R-1-B-A zone?
20% of lot depth or 25 ft (whichever is less) — Tiburon Municipal Code § 16-21.040.
What is the minimum lot size in Tiburon's R-1-B-A zone?
10,000 square feet — Tiburon Municipal Code § 16-21.040.
General information, not legal advice.
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