(1) The Planning and Zoning Law authorizes the legislative body of a city or county to regulate, among other things, the intensity of land use, and also authorizes a local agency to provide by ordinance for the creation of accessory dwelling units in single-family and multifamily residential zones, as specified. Existing law requires the ordinance to designate areas within the jurisdiction of the local agency where these units may be permitted, impose specified standards on these units, provide that accessory dwelling units do not exceed allowable density and are a residential use, as specified, and require these units to comply with specified conditions, including a requirement that the unit is not intended for sale separate from the primary residence and may be rented. Existing law establishes the maximum standards that local agencies are required to use to evaluate a proposed accessory dwelling unit on a lot zoned for residential use that contains an existing single-family dwelling.
California SB 229 (20172018) — Accessory dwelling units.
(1) The Planning and Zoning Law authorizes the legislative body of a city or county to regulate, among other things, the intensity of land use, and also authorizes a local agency to provide by ordinance for the creation of accessory dwelling units in single-family and multifamily residential zones, as specified. Existing law requires the ordinance to designate areas within the jurisdiction of the local agency where these units may be permitted, impose specified standards on these units, provide that accessory dwelling units do not exceed allowable density and are a residential use, as specified, and require these units to comply with specified conditions, including a requirement that the unit is not intended for sale separate from the primary residence and may be rented. Existing law establishes the maximum standards that local agencies are required to use to evaluate a proposed accessory dwelling unit on a lot zoned for residential use that contains an existing single-family dwelling.
Version chain
The bill's text revisions, in order — the diff chain from filing to enrollment.
Do pass as amended and be re-referred to the Committee on [Local Government] — 7–0 (pass) · lower
Do pass and be re-referred to the Committee on [Appropriations] — 9–0 (pass) · lower
SB 229 Wieckowski Senate Third Reading By BLOOM — 76–2 (pass) · lower
Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — 6–1 (pass) · upper
Do pass, but first be re-referred to the Committee on [Governance and Finance] with the recommendation: To Consent Calendar — 12–0 (pass) · upper
Do pass. — 15–0 (pass) · lower
Special Consent Calendar SB229 — 40–0 (pass) · upper
Sponsors
Wieckowski — primary (person)
Timeline
The legislative action history — every referral, reading, and vote.
2017-02-02 Introduced. Read first time. To Com. on RLS. for assignment. To print. introduction, reading-1
2017-02-03 From printer. May be acted upon on or after March 5.
2017-02-16 Referred to Coms. on T. & H. and GOV. & F. referral-committee
2017-03-13 From committee with author's amendments. Read second time and amended. Re-referred to Com. on T. & H. reading-2, referral-committee, amendment-passage, committee-passage, reading-1
2017-03-21 Set for hearing March 28.
2017-03-28 From committee: Do pass and re-refer to Com. on GOV. & F. with recommendation: To consent calendar. (Ayes 12. Noes 0.) (March 28). Re-referred to Com. on GOV. & F. committee-passage-favorable, committee-passage, referral-committee
2017-03-30 Set for hearing April 5.
2017-04-17 From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 6. Noes 1. Page 622.) (April 5). committee-passage-favorable, committee-passage, amendment-passage
2017-04-18 Read second time and amended. Re-referred to Com. on APPR. amendment-passage, reading-2, referral-committee, reading-1
2017-04-21 Set for hearing May 1.
2017-05-01 From committee: Be ordered to second reading pursuant to Senate Rule 28.8. committee-passage, reading-2
2017-05-02 Read second time. Ordered to third reading. reading-2, reading-1
2017-05-11 Read third time and amended. amendment-passage, reading-3, reading-1
2017-05-11 Ordered to second reading.
2017-05-15 Read second time. Ordered to third reading. reading-2, reading-1
2017-05-15 Published May 11 at 9 p.m.
2017-05-22 Read third time. Passed. (Ayes 37. Noes 0. Page 1145.) Ordered to the Assembly. reading-3, passage, reading-1
2017-05-23 In Assembly. Read first time. Held at Desk. reading-1
2017-06-05 Referred to Coms. on H. & C.D. and L. GOV. referral-committee
2017-06-19 From committee with author's amendments. Read second time and amended. Re-referred to Com. on H. & C.D. reading-2, referral-committee, amendment-passage, committee-passage, reading-1
2017-06-29 From committee: Do pass as amended and re-refer to Com. on L. GOV. (Ayes 7. Noes 0.) (June 28). committee-passage-favorable, committee-passage, amendment-passage
2017-07-03 Read second time and amended. Re-referred to Com. on L. GOV. amendment-passage, reading-2, referral-committee, reading-1
2017-07-13 From committee: Do pass and re-refer to Com. on APPR. (Ayes 9. Noes 0.) (July 12). Re-referred to Com. on APPR. committee-passage-favorable, committee-passage, referral-committee
2017-07-17 From committee with author's amendments. Read second time and amended. Re-referred to Com. on APPR. reading-2, referral-committee, amendment-passage, committee-passage, reading-1
2017-08-23 From committee: Do pass. (Ayes 15. Noes 0.) (August 23). committee-passage-favorable, committee-passage
2017-08-24 Read second time. Ordered to third reading. reading-2, reading-1
2017-09-08 Read third time and amended. amendment-passage, reading-3, reading-1
2017-09-08 Ordered to third reading.
2017-09-11 Read third time. Passed. (Ayes 76. Noes 2. Page 3156.) Ordered to the Senate. reading-3, passage, reading-1
2017-09-11 In Senate. Concurrence in Assembly amendments pending.
2017-09-12 Ordered to special consent calendar.
2017-09-14 Assembly amendments concurred in. (Ayes 40. Noes 0. Page 2904.) Ordered to engrossing and enrolling. committee-passage-favorable, amendment-passage
2017-09-20 Enrolled and presented to the Governor at 4 p.m.
2017-10-08 Approved by the Governor. executive-signature
2017-10-08 Chaptered by Secretary of State. Chapter 594, Statutes of 2017.
Source
OpenStates / OpenCivicData bulk snapshot 2026-07-01; origin ocd-bill/d5d657a7-11a9-4b76-8400-47f50b807f0a. Confidence: reported (aggregated from official California legislature records).