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Local ADU Ordinances

ADU ordinances from California cities and counties

City of Napa

★★★★ ☆

Accessory dwelling units and junior accessory dwelling units

17.52.015

Effective: Sep 2, 2025

Source: ecode360.com

City of Larkspur

City of Larkspur ADU Ordinance

Chapter 18.23

Effective: Jan 1, 2024

Local ADU ordinance establishing development standards for accessory dwelling units.

Source: larkspur.municipal.codes

City of Mill Valley

City of Mill Valley ADU Ordinance

Effective: Jan 1, 2024

Local ADU ordinance establishing development standards for accessory dwelling units.

Source: ecode360.com

City of Novato

City of Novato ADU Ordinance

DIVISION 19.34

Effective: Jan 1, 2024

Local ADU ordinance establishing development standards for accessory dwelling units.

Source: library.municode.com

City of San Anselmo

City of San Anselmo ADU Ordinance

Chapter 6

Effective: Jan 1, 2024

Parking requirements specified.

Source: library.municode.com

City of San Rafael

City of San Rafael ADU Ordinance

Chapter 14.16

Effective: Jan 1, 2024

Local ADU ordinance establishing development standards for accessory dwelling units.

Source: library.municode.com

City of Calistoga

City of Calistoga ADU Ordinance

Effective: Jan 1, 2024

Local ADU ordinance establishing development standards for accessory dwelling units.

Source: ecode360.com

City of St. Helena

City of St. Helena ADU Ordinance

Chapter 17.22

Effective: Jan 1, 2024

Local ADU ordinance establishing development standards for accessory dwelling units.

Source: sthelena.municipal.codes

Napa County

Napa County ADU Ordinance

Section 18.104.180

Effective: Jan 1, 2024

Local ADU ordinance establishing development standards for accessory dwelling units.

Source: library.municode.com

Sonoma County

Sonoma County ADU Ordinance

Effective: Jan 1, 2024

Local ADU ordinance establishing development standards for accessory dwelling units.

Source: library.municode.com

Town of Tiburon

Town of Tiburon ADU Ordinance

Section 16-52.100

Effective: Jan 1, 2024

Local ADU ordinance establishing development standards for accessory dwelling units.

Source: library.municode.com

Town of Yountville

Town of Yountville ADU Ordinance

Effective: Jan 1, 2024

Local ADU ordinance establishing development standards for accessory dwelling units.

Source: ecode360.com

City of Sausalito

City of Sausalito ADU Ordinance

Effective: Jan 1, 2024

Local ADU ordinance establishing development standards for accessory dwelling units.

Source: ecode360.com