Fabio
128 lines
10 KiB
Markdown
128 lines
10 KiB
Markdown
---
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type: "Bill"
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title: "Accessory dwelling units."
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description: "(1) The Planning and Zoning Law authorizes a local agency, by ordinance, or, if a local agency has not adopted an ordinance, by ministerial approval, to provide for the creation of accessory dwelling units in single-family and multifamily residential zones in accordance with specified standards and conditions. Existing law requires any ordinance adopted by a local agency to comply with certain criteria, including that it require accessory dwelling units to be either attached to, or located within, the proposed or existing primary dwelling or detached if located within the same lot, and that it does not exceed a specified amount of total area of floor space."
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jurisdiction: "us/states/ca"
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legislature: "California Legislature"
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session: "20192020"
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identifier: "SB 13"
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citation: "California SB 13 (20192020)"
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classification: ["bill"]
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subjects: ["Accessory dwelling units."]
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status: "enacted"
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primary_sponsors: ["Wieckowski"]
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version_count: 13
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action_count: 37
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vote_count: 10
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first_action: "2018-12-03"
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last_action: "2019-10-09"
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source: "openstates"
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source_identifier: "ocd-bill/b8161276-8882-498d-887c-ef57c694fe8f"
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source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201920200SB13"
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source_hash: "ce2ab765ea1b982d52bba96597914b0c16403c047476ca5223362ba6f6f71235"
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vintage: "2026-07-01"
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source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
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retrieved_at: "2026-07-06"
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confidence: "reported"
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tags: ["legislation", "bill", "us-ca"]
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---
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# California SB 13 (20192020) — Accessory dwelling units.
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(1) The Planning and Zoning Law authorizes a local agency, by ordinance, or, if a local agency has not adopted an ordinance, by ministerial approval, to provide for the creation of accessory dwelling units in single-family and multifamily residential zones in accordance with specified standards and conditions. Existing law requires any ordinance adopted by a local agency to comply with certain criteria, including that it require accessory dwelling units to be either attached to, or located within, the proposed or existing primary dwelling or detached if located within the same lot, and that it does not exceed a specified amount of total area of floor space.
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## Version chain
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The bill's text revisions, in order — the diff chain from filing to enrollment.
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1. **12/03/18 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1399INT)
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2. **03/11/19 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1398AMD)
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3. **04/04/19 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1397AMD)
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4. **04/23/19 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1396AMD)
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5. **05/17/19 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1395AMD)
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6. **06/24/19 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1394AMD)
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7. **07/01/19 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1393AMD)
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8. **08/12/19 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1392AMD)
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9. **09/03/19 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1391AMD)
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10. **09/06/19 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1390AMD)
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11. **10/09/19 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1388CHP)
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12. **SB13** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201920200SB13)
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13. **09/17/19 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200SB13&version=20190SB1389ENR)
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## Votes
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- Unifinished Business — **35–4** (pass) · upper
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- SB 13 Wieckowski Senate Third Reading By Voepel — **68–6** (pass) · lower
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- Do pass as amended, but first amend, and re-refer to the Committee on [Governance and Finance] — **10–0** (pass) · upper
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- 3rd Reading SB13 Wieckowski et al. — **34–2** (pass) · upper
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- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **7–0** (pass) · upper
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- Do pass as amended — **6–0** (pass) · upper
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- Do pass as amended and be re-referred to the Committee on [Local Government] — **6–0** (pass) · lower
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- Do pass as amended. — **14–1** (pass) · lower
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- Placed on suspense file — **5–0** (pass) · upper
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- Do pass as amended and be re-referred to the Committee on [Appropriations] — **8–0** (pass) · lower
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## Sponsors
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- Wieckowski — primary (person)
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- Beall — principal coauthor (person)
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- Bloom — coauthor (person)
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- Boerner Horvath — coauthor (person)
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- Carrillo — coauthor (person)
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- Friedman — coauthor (person)
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- Gloria — principal coauthor (person)
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- Hertzberg — principal coauthor (person)
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- Levine — coauthor (person)
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- Nielsen — coauthor (person)
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- Patterson — coauthor (person)
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- Quirk-Silva — principal coauthor (person)
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- Skinner — coauthor (person)
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- Wiener — principal coauthor (person)
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## Timeline
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The legislative action history — every referral, reading, and vote.
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- **2018-12-03** Introduced. Read first time. To Com. on RLS. for assignment. To print. `introduction, reading-1`
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- **2018-12-04** From printer. May be acted upon on or after January 3.
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- **2019-01-16** Referred to Com. on RLS. `referral-committee`
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- **2019-03-11** From committee with author's amendments. Read second time and amended. Re-referred to Com. on RLS. `reading-1, reading-2, amendment-passage, committee-passage, referral-committee`
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- **2019-03-20** Re-referred to Coms. on HOUSING and GOV. & F. `referral-committee`
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- **2019-03-26** Set for hearing April 2.
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- **2019-04-03** From committee: Do pass as amended and re-refer to Com. on GOV. & F. (Ayes 10. Noes 0. Page 551.) (April 2). `committee-passage-favorable, committee-passage, amendment-passage`
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- **2019-04-04** Read second time and amended. Re-referred to Com. on GOV. & F. `reading-1, reading-2, amendment-passage, referral-committee`
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- **2019-04-05** Set for hearing April 10.
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- **2019-04-22** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 7. Noes 0. Page 712.) (April 10). `committee-passage-favorable, committee-passage, amendment-passage`
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- **2019-04-23** Read second time and amended. Re-referred to Com. on APPR. `reading-1, reading-2, amendment-passage, referral-committee`
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- **2019-04-26** Set for hearing May 6.
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- **2019-05-06** May 6 hearing: Placed on APPR. suspense file.
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- **2019-05-10** Set for hearing May 16.
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- **2019-05-17** From committee: Do pass as amended. (Ayes 6. Noes 0. Page 1087.) (May 16). `committee-passage-favorable, committee-passage, amendment-passage`
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- **2019-05-17** Read second time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-2`
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- **2019-05-20** Read second time. Ordered to third reading. `reading-1, reading-2`
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- **2019-05-22** Read third time. Passed. (Ayes 34. Noes 2. Page 1216.) Ordered to the Assembly. `passage, reading-3, reading-1`
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- **2019-05-22** In Assembly. Read first time. Held at Desk. `reading-1`
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- **2019-06-06** Referred to Coms. on H. & C.D. and L. GOV. `referral-committee`
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- **2019-06-20** From committee: Do pass as amended and re-refer to Com. on L. GOV. (Ayes 6. Noes 0.) (June 19). `committee-passage-favorable, committee-passage, amendment-passage`
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- **2019-06-24** Read second time and amended. Re-referred to Com. on L. GOV. `reading-1, reading-2, amendment-passage, referral-committee`
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- **2019-07-01** From committee with author's amendments. Read second time and amended. Re-referred to Com. on L. GOV. `reading-1, reading-2, amendment-passage, committee-passage, referral-committee`
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- **2019-07-11** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 8. Noes 0.) (July 10). `committee-passage-favorable, committee-passage, amendment-passage`
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- **2019-08-12** Read second time and amended. Re-referred to Com. on APPR. `reading-1, reading-2, amendment-passage, referral-committee`
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- **2019-08-21** August 21 set for first hearing. Placed on APPR. suspense file.
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- **2019-08-30** From committee: Do pass as amended. (Ayes 14. Noes 1.) (August 30). `committee-passage-favorable, committee-passage, amendment-passage`
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- **2019-09-03** Read second time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-2`
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- **2019-09-04** Read second time. Ordered to third reading. `reading-1, reading-2`
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- **2019-09-06** Read third time and amended. `amendment-passage, reading-3, reading-1`
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- **2019-09-06** Ordered to third reading.
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- **2019-09-13** Read third time. Passed. (Ayes 68. Noes 6. Page 3534.) Ordered to the Senate. `passage, reading-3, reading-1`
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- **2019-09-13** In Senate. Concurrence in Assembly amendments pending.
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- **2019-09-13** Assembly amendments concurred in. (Ayes 35. Noes 4. Page 2938.) Ordered to engrossing and enrolling. `amendment-passage, committee-passage-favorable`
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- **2019-09-20** Enrolled and presented to the Governor at 10 a.m.
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- **2019-10-09** Approved by the Governor. `executive-signature`
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- **2019-10-09** Chaptered by Secretary of State. Chapter 653, Statutes of 2019.
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## Source
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OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/b8161276-8882-498d-887c-ef57c694fe8f`. Confidence: reported (aggregated from official California legislature records).
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