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republic-os/legislation/us/states/ca/20212022/sb-10.md
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Fabio 5a13be122b Legislation: batch E — CA TN VA VT WA WI WV WY 
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-06 17:28:36 -04:00

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---
type: "Bill"
title: "Planning and zoning: housing development: density."
description: "The Planning and Zoning Law requires a city or county to adopt a general plan for land use development within its boundaries that includes, among other things, a housing element. Existing law requires an attached housing development to be a permitted use, not subject to a conditional use permit, on any parcel zoned for multifamily housing if at least certain percentages of the units are available at affordable housing costs to very low income, lower income, and moderate-income households for at least 30 years and if the project meets specified conditions relating to location and being subject to a discretionary decision other than a conditional use permit. Existing law provides for various incentives intended to facilitate and expedite the construction of affordable housing."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20212022"
identifier: "SB 10"
citation: "California SB 10 (20212022)"
classification: ["bill"]
subjects: ["Planning and zoning: housing development: density."]
status: "enacted"
primary_sponsors: ["Wiener"]
version_count: 12
action_count: 35
vote_count: 9
first_action: "2020-12-07"
last_action: "2021-09-16"
source: "openstates"
source_identifier: "ocd-bill/5e50e0ca-f2e4-4979-b610-7c8668e75eb5"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220SB10"
source_hash: "da6c103c8c3ecae3eeea68b0177b5d7ebf2816f00168cc729eca30b607ccf325"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ca"]
---
# California SB 10 (20212022) — Planning and zoning: housing development: density.
The Planning and Zoning Law requires a city or county to adopt a general plan for land use development within its boundaries that includes, among other things, a housing element. Existing law requires an attached housing development to be a permitted use, not subject to a conditional use permit, on any parcel zoned for multifamily housing if at least certain percentages of the units are available at affordable housing costs to very low income, lower income, and moderate-income households for at least 30 years and if the project meets specified conditions relating to location and being subject to a discretionary decision other than a conditional use permit. Existing law provides for various incentives intended to facilitate and expedite the construction of affordable housing.
## Version chain
The bill's text revisions, in order — the diff chain from filing to enrollment.
1. **12/07/20 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220SB10&version=20210SB1099INT)
2. **02/24/21 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220SB10&version=20210SB1098AMD)
3. **03/22/21 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220SB10&version=20210SB1097AMD)
4. **04/13/21 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220SB10&version=20210SB1096AMD)
5. **04/27/21 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220SB10&version=20210SB1095AMD)
6. **05/26/21 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220SB10&version=20210SB1094AMD)
7. **06/14/21 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220SB10&version=20210SB1093AMD)
8. **06/24/21 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220SB10&version=20210SB1092AMD)
9. **07/05/21 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220SB10&version=20210SB1091AMD)
10. **09/16/21 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220SB10&version=20210SB1089CHP)
11. **SB10** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220SB10)
12. **09/01/21 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220SB10&version=20210SB1090ENR)
## Votes
- SB 10 Wiener Senate Third Reading By Chiu — **44–12** (pass) · lower
- Do pass — **6–1** (pass) · upper
- Do pass as amended and be re-referred to the Committee on [Local Government] — **6–1** (pass) · lower
- Do pass as amended. — **6–1** (pass) · lower
- Unfinished Business SB10 Wiener et al. Concurrence — **28–6** (pass) · upper
- Placed on suspense file — **7–0** (pass) · upper
- Do pass as amended, but first amend, and re-refer to the Committee on [Governance and Finance] — **7–1** (pass) · upper
- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **4–1** (pass) · upper
- 3rd Reading SB10 Wiener et al. — **27–7** (pass) · upper
## Sponsors
- Wiener — primary (person)
- Atkins — principal coauthor (person)
- Caballero — principal coauthor (person)
- Robert Rivas — principal coauthor (person)
- Skinner — principal coauthor (person)
- Wicks — coauthor (person)
## Timeline
The legislative action history — every referral, reading, and vote.
- **2020-12-07** Introduced. Read first time. To Com. on RLS. for assignment. To print. `introduction, reading-1`
- **2020-12-08** From printer. May be acted upon on or after January 7.
- **2021-01-28** Referred to Coms. on HOUSING, GOV. & F., and EQ. `referral-committee`
- **2021-01-28** Referral to Com. on E.Q. rescinded because of the limitations placed on committee hearings due to ongoing health and safety risks of the COVID-19 virus.
- **2021-02-24** Set for hearing March 18.
- **2021-02-24** From committee with author's amendments. Read second time and amended. Re-referred to Com. on HOUSING. `amendment-passage, committee-passage, reading-1, reading-2, referral-committee`
- **2021-03-18** From committee: Do pass as amended and re-refer to Com. on GOV. & F. (Ayes 7. Noes 1. Page 552.) (March 18). `amendment-passage, committee-passage, committee-passage-favorable`
- **2021-03-22** Read second time and amended. Re-referred to Com. on GOV. & F. `amendment-passage, reading-1, reading-2, referral-committee`
- **2021-04-13** Set for hearing April 22.
- **2021-04-13** From committee with author's amendments. Read second time and amended. Re-referred to Com. on GOV. & F. `amendment-passage, committee-passage, reading-1, reading-2, referral-committee`
- **2021-04-26** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 4. Noes 1. Page 895.) (April 22). `amendment-passage, committee-passage, committee-passage-favorable`
- **2021-04-27** Read second time and amended. Re-referred to Com. on APPR. `amendment-passage, reading-1, reading-2, referral-committee`
- **2021-04-30** Set for hearing May 10.
- **2021-05-10** May 10 hearing: Placed on APPR suspense file.
- **2021-05-14** Set for hearing May 20.
- **2021-05-20** From committee: Do pass. (Ayes 6. Noes 1. Page 1178.) (May 20). `committee-passage, committee-passage-favorable`
- **2021-05-20** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2021-05-26** Read third time and amended. `amendment-passage, reading-1, reading-3`
- **2021-05-26** Ordered to second reading.
- **2021-05-27** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2021-06-02** Read third time. Passed. (Ayes 27. Noes 7. Page 1393.) Ordered to the Assembly. `passage, reading-1, reading-3`
- **2021-06-02** In Assembly. Read first time. Held at Desk. `reading-1`
- **2021-06-10** Referred to Coms. on H. & C.D. and L. GOV. `referral-committee`
- **2021-06-14** From committee with author's amendments. Read second time and amended. Re-referred to Com. on H. & C.D. `amendment-passage, committee-passage, reading-1, reading-2, referral-committee`
- **2021-06-23** From committee: Do pass as amended and re-refer to Com. on L. GOV. (Ayes 6. Noes 1.) (June 22). `amendment-passage, committee-passage, committee-passage-favorable`
- **2021-06-24** Read second time and amended. Re-referred to Com. on L. GOV. `amendment-passage, reading-1, reading-2, referral-committee`
- **2021-07-01** From committee: Do pass as amended. (Ayes 6. Noes 1.) (June 30). `amendment-passage, committee-passage, committee-passage-favorable`
- **2021-07-05** Read second time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-2`
- **2021-07-06** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2021-08-23** Read third time. Passed. (Ayes 44. Noes 12. Page 2475.) Ordered to the Senate. `passage, reading-1, reading-3`
- **2021-08-26** In Senate. Concurrence in Assembly amendments pending.
- **2021-08-30** Assembly amendments concurred in. (Ayes 28. Noes 6. Page 2210.) Ordered to engrossing and enrolling. `amendment-passage, committee-passage-favorable`
- **2021-09-03** Enrolled and presented to the Governor at 2 p.m.
- **2021-09-16** Approved by the Governor. `executive-signature`
- **2021-09-16** Chaptered by Secretary of State. Chapter 163, Statutes of 2021. `became-law`
## Source
OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/5e50e0ca-f2e4-4979-b610-7c8668e75eb5`. Confidence: reported (aggregated from official California legislature records).
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