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Moraga · Zoning · R-12

Moraga R-12 zoning: height, setbacks and lot size

In Moraga's R-12 zone, generally buildings can be up to 35 ft (3 stories) tall and the front setback is 15 ft, with the conditions listed below (Moraga code, read October 2026).

Key points

  • Maximum building height: 35 ft (Developments fronting or abutting a major scenic corridor also follow the stepback rules of Section 8.200.050.)
  • Maximum number of stories: 3 stories (Lots with more than 1 dwelling unit; lots with 1 unit are limited to 2 stories)
  • Minimum front setback: 15 ft (Lots with more than 1 unit or compact single-family; porch may be nine feet; driveway portion needs 20 ft; scenic corridor sites follow Section 8.200.050)
  • Minimum side setback: 10 ft (Any lot except compact single-family housing; major scenic corridor sites follow Section 8.200.050 rules.)
  • Minimum rear setback: 15 ft (Except developments fronting or abutting a major scenic corridor, which follow the setback and stepback rules of Section 8.200.050.)
  • Maximum lot coverage: 60%
  • Maximum density: 12 dwelling units per acre (the code sets a range: at least 10, at most 12 units per acre)

R-12 (Twelve Dwelling Unit Per Acre Multifamily Residential District) is a zoning district in Moraga. Every value below was read from the Moraga 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-12

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
35 ft
Applies: Developments fronting or abutting a major scenic corridor also follow the stepback rules of Section 8.200.050.
§ 8.33.050 · code text
Table row “Maximum building height”, column “More than 1 dwelling unit per lot”: 35 feet (see A5)
Maximum number of stories
3 stories
Applies: Lots with more than 1 dwelling unit; lots with 1 unit are limited to 2 stories
§ 8.33.050 · code text
Table row “Maximum stories”, column “More than 1 dwelling unit per lot”: 3
Minimum front setback
15 ft
Applies: Lots with more than 1 unit or compact single-family; porch may be nine feet; driveway portion needs 20 ft; scenic corridor sites follow Section 8.200.050
§ 8.33.050 · code text
Table row “Minimum front yard setback”, column “More than 1 dwelling unit per lot”: 15 feet (see A1, A2 & A5)
Minimum side setback
10 ft
Applies: Any lot except compact single-family housing; major scenic corridor sites follow Section 8.200.050 rules.
§ 8.33.050 · code text
Table row “Minimum side yard setback”, column “More than 1 dwelling unit per lot”: 10 feet; 20 feet average for three-story structures (see A5)
Minimum rear setback
15 ft
Applies: Except developments fronting or abutting a major scenic corridor, which follow the setback and stepback rules of Section 8.200.050.
§ 8.33.050 · code text
Table row “Minimum rear yard setback”, column “More than 1 dwelling unit per lot”: 15 feet (see A5)
Maximum lot coverage
60%
§ 8.33.050 · code text
Table row “Maximum lot coverage”, column “More than 1 dwelling unit per lot”: 60 percent
Maximum density
12 dwelling units per acre
Applies: the code sets a range: at least 10, at most 12 units per acre
§ 8.33.040 · code text
A. To the extent consistent with state law, the developer/property owner may choose to develop property in this district at a minimum of ten dwelling units per acre, and at no more than twelve (12) dwelling units per acre except as provided in subsection B of this section.

When a different number applies

The code sets other values for particular lots, buildings or locations in R-12:

  • Minimum front setback: 20 ft — 1 dwelling unit per lot, not compact single-family housing § 8.33.050
  • Minimum side setback: 5 ft — Compact single-family housing, 1 dwelling unit per lot § 8.33.050
  • Minimum side setback: 20 ft average — More than 1 dwelling unit per lot, three-story structures § 8.33.050
  • Minimum lot size: 3,600 square feet — Compact single-family housing, 1 dwelling unit per lot; lots may not exceed 4,500 sq ft § 8.33.050
  • Minimum lot size: 10,000 square feet — 1 dwelling unit per lot § 8.33.050
  • Minimum lot size: 6,500 square feet — More than 1 dwelling unit per lot § 8.33.050

Not on this page

We did not find a general lot size, FAR limit for R-12 in the zoning tables we read. The code may still set one elsewhere — check the Moraga Municipal Code.

Other Moraga zoning districts

Who this affects

HomeownersArchitects and designersDevelopersReal estate agents

Frequently asked questions

What is the maximum building height in Moraga's R-12 zone?

35 ft (developments fronting or abutting a major scenic corridor also follow the stepback rules of Section 8.200.050) — Moraga Municipal Code § 8.33.050.

What is the maximum number of stories in Moraga's R-12 zone?

3 stories (lots with more than 1 dwelling unit; lots with 1 unit are limited to 2 stories) — Moraga Municipal Code § 8.33.050.

What is the minimum front setback in Moraga's R-12 zone?

15 ft (lots with more than 1 unit or compact single-family; porch may be nine feet; driveway portion needs 20 ft; scenic corridor sites follow Section 8.200.050) — Moraga Municipal Code § 8.33.050.

What is the minimum side setback in Moraga's R-12 zone?

10 ft (any lot except compact single-family housing; major scenic corridor sites follow Section 8.200.050 rules) — Moraga Municipal Code § 8.33.050.

What is the minimum rear setback in Moraga's R-12 zone?

15 ft (except developments fronting or abutting a major scenic corridor, which follow the setback and stepback rules of Section 8.200.050) — Moraga Municipal Code § 8.33.050.

General information, not legal advice.

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