Elk Grove is one of the Sacramento region's most ADU-friendly cities, with an Over-the-Counter ADU permit program, free city pre-approved plans (1-bedroom 625 sq ft and 2-bedroom 746 sq ft, updated to 2025 codes), and detached ADUs allowed up to 1,200 sq ft. Its ordinance (EGMC 23.90) was refreshed in July 2025 to align with Gov. Code 66310-66342, and ADUs are allowed in all residential, agricultural-residential, and agricultural zones.
Zoning & Size Requirements [1][2]
Yes — Elk Grove allows ADUs. A detached ADU can typically be up to 1,200 sq ft under current California and Elk Grove zoning rules.
See what this means for your lot — get 3 free quotes from Elk Grove ADU builders →
| Allowed Zones | All residential, agricultural-residential, and agricultural zoning districts, plus mixed-use lots with an existing or proposed dwelling |
| Max Size (Detached) | 1,200 sq ft |
| Max Size (Attached) | The greater of 50% of the primary dwelling's floor area, or 850 sq ft (1 bedroom) / 1,000 sq ft (2+ bedrooms) |
| Max Size (JADU) | 500 sq ft |
| Max Height | Detached: 16 ft generally (up to zone max if within the building envelope and outside required yards); 18 ft +2 ft roof-pitch allowance near major transit; 18 ft on multifamily/multistory lots; 30 ft in agricultural and ag-residential zones. Attached: 25 ft or the primary dwelling height, whichever is greater |
| Max Units | Single-family lot: 1 conversion ADU or JADU within existing space + 1 detached new-construction ADU. Multifamily: up to 8 detached ADUs (existing MF, not exceeding existing unit count), 2 detached (proposed MF), plus interior conversions up to 25% of units |
Setback Requirements [1][2]
Elk Grove requires a rear setback of about 4 ft for a detached ADU, and one off-street parking space is required. Owner-occupancy is not required — you can rent it out without living on the property.
| Rear Setback | 4 ft for new construction; none for conversions or same-footprint rebuilds |
| Side Setback | 4 ft interior side for new construction; none for conversions |
| Front Setback | Front and street-side setbacks same as underlying zoning district |
| Parking Required | 1 space per bedroom, but waived within 1/2 mile walking distance of any public transit (including bus stops), for conversions, in historic districts, and other state exemptions; tandem driveway parking allowed; no replacement parking for garage conversions |
| Owner Occupancy | Not required for ADUs (state law, permanent). JADUs: ordinance requires owner-occupancy, but under AB 1154 (2026) it can only be enforced where the JADU shares a bathroom with the main home |
| Min Lot Size | No minimum lot size |
Permit Process & Fees [3][4]
An ADU permit in Elk Grove typically costs Standard building permit and plan check fees — confirm current amounts with the Elk Grove Building Division and takes 60-day state-mandated review; deemed approved if the city misses the deadline (SB 543, Jan 2026); OTC projects far faster, through a ministerial, by-right review.
| Approval Process | Ministerial zoning clearance/plan check by the Community Development Director; Over-the-Counter ADU Program for qualifying projects; e-permitting available |
| Review Timeline | 60-day state-mandated review; deemed approved if the city misses the deadline (SB 543, Jan 2026); OTC projects far faster |
| Permit Fees | Standard building permit and plan check fees — confirm current amounts with the Elk Grove Building Division |
| Impact Fees | Waived for ADUs under 750 sq ft (state law); proportional above; ADUs are exempt from utility capacity charges unless built with a new home |
| Plan Check | Pre-approved city plans skip most plan review; solar PV required for new detached ADUs per the CA Energy Code |
| Pre-Approved Plans | Yes — free city pre-approved ADU plans (625 sq ft 1BR and 746 sq ft 2BR, locked to 2025 codes) plus a Master ADU Plan program and OTC submittal path |
Get Free ADU Quotes in Elk Grove
Tell us about your project and we'll connect you with ADU builders serving Elk Grove. Free, no obligation — you choose who to work with.
Takes about a minute.
Up to 3 independent local ADU builders — never more, and we tell them nothing you don't submit here.
Compare quotes, verify license & insurance, hire (or don't). No spam either way.
🔒 Your info is secure. We share it only with contractors quoting your project. No spam, no obligation.
Construction Costs [5]
Building an ADU in Elk Grove typically costs $150,000-$300,000 ($250-$400 per sq ft); a garage conversion runs $80,000-$150,000.
See what this means for your lot — get 3 free quotes from Elk Grove ADU builders →
| Average Build Cost | $150,000-$300,000 |
| Cost per Sq Ft | $250-$400 |
| Garage Conversion | $80,000-$150,000 |
| Prefab ADU (Installed) | $120,000-$250,000 |
Finance Your ADU Project
Most ADU projects are funded through HELOCs, construction loans, or cash-out refinancing. Compare rates from top lenders.
Some links on this page are affiliate links. We may earn a commission at no extra cost to you. Learn more
Rental Income Potential [6]
A 2-bedroom ADU in Elk Grove rents for around $2,100-$2,500/mo, an estimated 6-9% annual return.
| Avg Rent (1 Bedroom) | $1,750-$2,050/mo |
| Avg Rent (2 Bedroom) | $2,100-$2,500/mo |
| Short-Term Rental | No — ADU rentals must be for terms of 30 days or longer (EGMC 23.90.040) |
| Est. Annual ROI | 6-9% annual return |
Explore Prefab ADU Options
Prefab ADUs can save 20-40% vs. traditional construction and cut build time in half.
Some links on this page are affiliate links. We may earn a commission at no extra cost to you. Learn more
Recent Law Changes
What's Changed Recently
- Ord. 13-2025 (effective July 25, 2025) updated EGMC 23.90 to conform with renumbered state ADU law (Gov. Code 66310-66342)
- City pre-approved ADU plans re-issued on the 2025 California codes (1BR 625 sq ft, 2BR 746 sq ft)
- SB 543 (Jan 2026): ADU applications deemed approved if the city fails to act within 60 days
- AB 1154 (Jan 2026): JADU owner-occupancy limited to units sharing a bathroom with the primary dwelling
Tips for Building an ADU in Elk Grove
- Use the free city pre-approved plans and the Over-the-Counter ADU Program for the fastest, cheapest permit path in the region
- Agricultural and ag-residential lots can build detached ADUs up to 30 ft tall — unusual flexibility for larger properties
- Any bus stop within a half-mile walk erases the parking requirement — check before adding a space
- New detached ADUs need rooftop solar under the CA Energy Code; garage conversions don't
ADU Builders in Elk Grove
Looking for an ADU builder in Elk Grove? ADU projects need a contractor experienced with local zoning, the permit process, and utility connections — not every general contractor has built one. We match Elk Grove homeowners with experienced local ADU contractors who provide free, no-obligation quotes. Getting at least three bids typically saves 20-40% on the same scope.
Sources & References
All data on this page is sourced from official government records and verified market data. View our full methodology.
- EGMC Chapter 23.90 Accessory Dwelling Units Municipal Code — Accessed 2026-07-10
- Accessory Dwelling Units (ADU) | City of Elk Grove Planning Department — Accessed 2026-07-10
- Over the Counter ADU Program | City of Elk Grove Planning Department — Accessed 2026-07-10
- City Pre-Approved ADU Plans and Submittal Requirements | City of Elk Grove Planning Department — Accessed 2026-07-10
- Elk Grove, California | ADU Rules, Plans, and Guides | Dwellito industry — Accessed 2026-07-10
- Average rent in Elk Grove, CA | Redfin Rental Market Market Data — Accessed 2026-07-10
Frequently Asked Questions
Can I build an ADU in Elk Grove?
How much does an ADU cost in Elk Grove?
How much can I rent an ADU for in Elk Grove?
Do I need parking for an ADU in Elk Grove?
How long does it take to get an ADU permit in Elk Grove?
Ready to Build in Elk Grove?
Get free, no-obligation quotes from top-rated ADU contractors in Elk Grove.
Get Free Quotes →