ADU Permits: Lincoln vs Roseville
How do adu permits rules compare between Lincoln, CA and Roseville, CA?
Lincoln and Roseville have similar restriction levels.
Lincoln, CA
Placer County
Lincoln issues ADU permits ministerially (no discretionary review) through the Building Division. Applications must be approved or denied within 60 days of a complete submission per Cal. Gov. Code §65852.2(b), or 30 days when using an AB 1332 pre-approved plan.
View full Lincoln rules →Roseville, CA
Placer County
Roseville processes ADU and JADU applications ministerially under Roseville Municipal Code Title 19 (Zoning Ordinance) and California Government Code §65852.2 and §65852.22. The Development Services Department Planning Division reviews permits with the state-mandated 60-day decision deadline. Detached ADUs may reach 1,200 sq ft and JADUs up to 500 sq ft, with state by-right minimums of 800 sq ft and 16-foot height regardless of underlying zone.
View full Roseville rules →Key Facts Comparison
| Fact | Lincoln | Roseville |
|---|---|---|
| Permit required | Yes (building permit) | - |
| Review type | Ministerial (no discretionary review) | - |
| Standard approval time | 60 days (state max) | - |
| Pre-approved plan time | 30 days | - |
| Contact | permittech@lincolnca.gov / (916) 434-2470 | - |
| Building Division | Lincoln Community Development | - |
| Code | - | RMC Title 19; Gov. Code §65852.2 |
| Review | - | Ministerial, 60-day cap |
| Detached Max | - | 1,200 sq ft |
| JADU Max | - | 500 sq ft |
| Setback | - | 4 ft side/rear (one-story) |
| Min Lot Size | - | None (state-preempted) |
Highlighted rows indicate differences between cities.
Lincoln FAQ
How long does it take to get an ADU permit in Lincoln?
The City must approve or deny a complete ADU application within 60 days under Cal. Gov. Code §65852.2(b)(1). AB 1332 pre-approved plans are decided within 30 days.
Can my ADU application be denied for design reasons?
No. Lincoln must approve any ADU meeting Chapter 18.37 and state-floor standards. The City cannot impose discretionary design review on ADUs per Cal. Gov. Code §65852.2(b).
Who do I contact for an ADU permit in Lincoln?
Email permittech@lincolnca.gov or call the Building Division at (916) 434-2470.
Roseville FAQ
How long does ADU review take in Roseville?
California Gov. Code §65852.2(b) caps ministerial review at 60 days from a complete application. Roseville Development Services Planning Division issues permits when plans meet RMC Title 19 objective standards. No public hearing or discretionary findings are required.
Is there a minimum lot size for a Roseville ADU?
No. California Gov. Code §65852.2 preempts any lot-size minimum for ADUs on single-family or multi-family lots, and RMC Title 19 implements the state standards. ADUs may be built on any lot that lawfully contains or could contain a single-family or multi-family dwelling.
Compare other topics
See how Lincoln and Roseville compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool