Chula Vista ADU Permit Process: 8 Steps, Real 2026 Fees & Pre-Submittal Checklist
Updated May 12, 2026 — fees verified against City of Chula Vista FY 2025–26 fee schedule
At a Glance: Chula Vista ADU Permit Facts (2026)
- Review clock: 60 calendar days after a complete submittal is accepted (state mandate)
- Permit fee — City Standard detached: $3,951 base (first 500 sq ft) + $7.84/sq ft above 500
- Permit fee — custom detached: $4,963 base (first 500 sq ft) + $9.83/sq ft above 500
- Impact fees (detached): ~$6,960 transportation + $3,399–$7,064 parks + sewer
- School fee (Sweetwater USD): $5.19/sq ft for ADUs 500 sq ft and up
- Soils waiver: available for parcels with existing approved geotechnical report on file
- Owner-occupancy: not required for standard ADUs; required for JADUs
- Max size: 1,200 sq ft detached or attached; 500 sq ft JADU
- Portal: ProjectDox (online) or in-person at 276 Fourth Avenue, Chula Vista
A completed detached ADU in Chula Vista. The permit process typically takes 3–6 months; construction adds another 3–5 months.
Chula Vista's ADU permit process runs on California's mandatory 60-day ministerial review clock — but the clock only starts when your submittal is complete. Most first-time applicants lose weeks to missing documents, unclear setback math, or failing the soils-assessment threshold. This guide walks every stage, names every fee, and tells you exactly what lands on a permit technician's desk.
All fees are from the City of Chula Vista's FY 2025–26 adopted fee schedule. Impact fees are from the city's Development Impact Fee program and are verified as of the publication date above.
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Do I need a building permit for an ADU in Chula Vista?
Yes — every ADU type requires a building permit from Chula Vista's Development Services Department. There is no permit-exempt path for ADUs. This includes:
- New detached ADUs (custom or City Standard)
- New attached ADUs (additions to the primary structure)
- Garage conversions and accessory structure conversions
- Junior ADUs (JADUs, 150–500 sq ft interior to the primary dwelling)
- ADUs legalized retroactively under SB 1186
Ministerial vs. discretionary review
California law (AB 68, SB 13, AB 671, and AB 3182) classifies ADU permit review as ministerial — meaning the city reviews for code compliance only and cannot reject an application for policy or neighborhood reasons. There is no design review, no public hearing, and no discretionary approval. If your plans meet the objective standards (size, setbacks, height, lot coverage), the city must approve.
The 60-day review clock begins the moment Development Services deems your submittal complete. If the city fails to act within 60 days, the application is approved by operation of law under California Government Code §65589.5(j).
The Chula Vista ADU permit process: 8 steps
Step 1 — Confirm Chula Vista city limits and zoning eligibility
Start at the Chula Vista GIS map or the San Diego County Assessor Parcel lookup. Verify your parcel is inside city limits — not in unincorporated San Diego County, which uses county ADU rules instead. Then check your zoning designation.
ADUs are permitted in all residential zones (R-1 through R-3), residential-planned zones, and most mixed-use zones with a residential component. Your primary dwelling must be legally permitted and in good standing — an address with open code violations can delay or block your ADU application.
Step 2 — Choose your ADU type before drawing plans
The ADU type you choose affects your permit fees, required documents, and construction cost by tens of thousands of dollars. Make this decision before hiring a designer.
| ADU Type | Best for | Base permit fee | Typical design cost |
|---|---|---|---|
| City Standard detached | Flat or gently sloped lots, standard slab foundation | $3,951 | $0–$5,000 (pre-approved plans) |
| Custom/non-standard detached | Complex lots, hillsides, architectural customization | $4,963 | $10,000–$25,000+ |
| Attached ADU (addition) | Private entrance, shared wall with primary home | $2,380 (first 300 sq ft) | $8,000–$18,000 |
| Garage conversion ADU | Existing attached or detached garage | $1,604 (first 400 sq ft) | $5,000–$12,000 |
| JADU (Junior ADU) | Interior room within primary dwelling, owner-occupant | $1,391 | $3,000–$8,000 |
Design costs are estimates. City Standard applicants use city-provided pre-approved structural plans, eliminating most engineering fees.
Step 3 — Attend a free pre-application meeting (optional but recommended)
Chula Vista's Development Services Department offers free pre-application conferences for ADU projects. Bring your parcel number, a rough sketch of the proposed ADU location, and your selected ADU type. Staff will:
- Flag overlay zones (Bayfront, Otay Ranch Planned Community, VHFHSZ fire zones)
- Check for existing soils reports on file — your soils waiver opportunity
- Confirm setback requirements specific to your parcel and zone
- Identify required agency referrals (Fire Department, Engineering, Stormwater)
The soils waiver is the most valuable thing a pre-application meeting surfaces. Many Chula Vista tracts — especially in Otay Ranch and Eastlake — have existing geotechnical reports on file. If Development Services confirms your parcel is covered, you skip a $2,500–$6,000 soils investigation and 4–8 weeks of geotechnical lead time.
Step 4 — Prepare plans, forms, and required documents
A complete Chula Vista ADU permit submittal requires the following. Missing any item triggers an incompleteness notice and delays your 60-day clock.
| Document | Notes |
|---|---|
| Title sheet | Scope of work, applicable codes, occupancy classification |
| Site plan | Dimensioned setbacks, lot coverage %, existing and proposed structures, utilities |
| Floor plans | 1/4" scale minimum, room labels, door/window schedules |
| Elevations | All four sides, with finished grade, ridge height, and existing grade shown |
| Foundation/structural plans | Pre-approved plans cover this for City Standard; custom requires engineered |
| Title 24 energy compliance | HERS rater or CF1R form; required for all new conditioned space |
| Building Permit Application | City form; include licensed contractor info or owner-builder declaration |
| Stormwater Applicability Checklist | Required by Engineering; determines if storm water management plan is needed |
| School fee certification | Receipt from Sweetwater USD confirming fees paid or exemption confirmed |
| Soils report (or waiver documentation) | Ask at pre-application meeting whether existing report covers your parcel |
Step 5 — Submit permit application via ProjectDox or in-person
Chula Vista accepts ADU permit applications electronically via ProjectDox (the city's online permit portal) and in person at:
City of Chula Vista Development Services276 Fourth Avenue
Chula Vista, CA 91910
Monday–Friday, 8:00 AM–5:00 PM
At submission, pay the initial plan-check deposit (typically 50–75% of the total permit fee). Development Services reviews for completeness within 5 business days. If the submittal is incomplete, you receive a correction notice and must resubmit — the 60-day clock has not started yet.
Once accepted as complete, you receive a permit number and the 60-day review clock begins. Track status in ProjectDox or call (619) 691-5272.
Step 6 — Clear plan review: the 60-day ministerial clock
City Standard applications typically clear first review in 3–5 weeks. Custom detached ADUs average 6–10 weeks for a first response. During review:
- Multiple city departments review simultaneously (Building, Engineering, Fire, Stormwater)
- Correction notices are sent via ProjectDox with a response deadline
- Each correction cycle must be resolved; the cumulative review time counts against the 60-day window
- If the city exhausts the 60 days without action, the permit is approved by operation of law
Step 7 — Pay fees and receive approved permits
After plan approval, Development Services issues a fee payment notice. You must pay the remaining permit fees, any outstanding impact fees, and school fee certification (which must be paid directly to Sweetwater USD before the city releases the permit). Once all fees are cleared, you receive the approved permit set — either as stamped paper or digital PDFs through ProjectDox.
Keep approved plans on-site throughout construction. The inspector will verify work against the stamped set at each inspection stage.
Step 8 — Build, pass inspections, and receive Certificate of Occupancy
Schedule inspections through the city's automated system or ProjectDox. Chula Vista typically books 1–3 business days out. Required inspection stages:
- Foundation/pre-pour (before concrete is placed)
- Framing (after structural framing, before insulation)
- Rough electrical, plumbing, and HVAC (before wallboard)
- Insulation (before wallboard)
- Wallboard (before taping and texture)
- Final inspection (all finishes complete, utilities connected)
After the final inspection passes, the city issues a Certificate of Occupancy (C of O). The ADU is legally habitable and can be legally rented. Update your insurance policy before the first tenant moves in.
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How long does the Chula Vista ADU permit process take?
The timeline varies significantly by ADU type and submittal quality. Here are realistic estimates based on Chula Vista permit data:
| Path | Submittal to approval | Construction | Total project |
|---|---|---|---|
| City Standard (first-time, clean submittal) | 6–10 weeks | 14–20 weeks | 5–8 months |
| City Standard (with correction cycles) | 10–16 weeks | 14–20 weeks | 7–10 months |
| Custom detached (no soils issues) | 12–20 weeks | 16–24 weeks | 8–12 months |
| Custom detached (soils study required) | 20–28 weeks | 16–24 weeks | 10–14 months |
| Garage conversion / JADU | 6–12 weeks | 8–14 weeks | 4–7 months |
These ranges assume a complete, correct first submittal. Every correction cycle adds 2–5 weeks. The biggest time killers are incomplete stormwater documentation, missing energy compliance reports, and soils studies that weren't ordered before design started.
How much do Chula Vista ADU permit fees cost?
Chula Vista uses a tiered fee schedule based on ADU type and square footage. These figures are from the city's FY 2025–26 Comprehensive Fee Schedule.
Building permit fees by ADU type
| ADU Type | Base fee (first sq ft tier) | Additional sq ft rate |
|---|---|---|
| City Standard detached | $3,951 (first 500 sq ft) | + $7.84/sq ft above 500 |
| Custom / non-standard detached | $4,963 (first 500 sq ft) | + $9.83/sq ft above 500 |
| Attached ADU (addition) | $2,380 (first 300 sq ft) | + $7.94/sq ft above 300 |
| Garage / accessory structure conversion | $1,604 (first 400 sq ft) | + $4.01/sq ft above 400 |
| JADU (interior conversion) | $1,391 (flat fee) | N/A |
Worked examples: what you'll actually pay at permit
| Scenario | Size | Permit fee |
|---|---|---|
| City Standard studio ADU | 400 sq ft | $3,951 |
| City Standard 1BR ADU | 650 sq ft | $3,951 + (150 × $7.84) = $5,127 |
| City Standard 2BR ADU | 1,000 sq ft | $3,951 + (500 × $7.84) = $7,871 |
| Custom detached 1BR ADU | 700 sq ft | $4,963 + (200 × $9.83) = $6,929 |
| Garage conversion | 480 sq ft | $1,604 + (80 × $4.01) = $1,925 |
City Standard saves $1,012+ vs. custom — and that's before design fees
On a 1,000 sq ft ADU, City Standard costs $7,871 in permit fees vs. $13,778 custom. Add the design cost difference ($0–$5k vs. $15k–$25k) and City Standard can save $15,000–$25,000 total for standard lots. SnapADU builds exclusively using City Standard where eligible — ask them if your lot qualifies.
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Impact fees and school fees: what adds to the bill
Permit fees are only part of the government cost to build an ADU in Chula Vista. Impact fees and school fees can add $10,000–$20,000 on top of the base permit fee, depending on your ADU type and size.
Transportation development impact fees
| ADU Type | Transportation DIF |
|---|---|
| Detached ADU (any size) | $6,960 |
| Attached ADU or JADU (under 500 sq ft) | $3,480 |
Parks development impact fees
| ADU Size | Parks DIF |
|---|---|
| 0–499 sq ft | $3,399 |
| 500–999 sq ft | $4,661 |
| 1,000–1,749 sq ft | $7,064 |
| JADU | Exempt |
School fees (Sweetwater USD)
Most of Chula Vista falls within the Sweetwater Union High School District (SUHSD). Sweetwater charges school fees on new residential construction under California Education Code §17620:
- $5.19 per sq ft of new residential conditioned space (ADUs 500 sq ft and up)
- Possible exemption for JADUs and conversions of existing permitted space — confirm with SUHSD before submission
- School fees are paid directly to Sweetwater USD before the city releases the permit; the city requires proof of payment
Sewer capacity fees
Sewer connection and capacity fees vary by meter size and whether the ADU connects to an existing lateral or requires a new connection. Expect $2,000–$8,000 for a new sewer lateral; check with Chula Vista Public Works Engineering at the pre-application meeting.
Realistic all-government cost for a 650 sq ft detached City Standard ADU
| Fee category | Amount |
|---|---|
| Building permit fee (City Standard, 650 sq ft) | $5,127 |
| Transportation DIF (detached) | $6,960 |
| Parks DIF (500–999 sq ft) | $4,661 |
| Sweetwater school fee (650 × $5.19) | $3,374 |
| Sewer capacity (estimate, new lateral) | $3,500 |
| Total government fees (estimated) | ~$23,622 |
Fees as of FY 2025–26; sewer capacity is an estimate and varies by connection type. Confirm all fees with Chula Vista Development Services before budgeting.
How 2026 California ADU laws apply in Chula Vista
California state law sets a floor for ADU rights that cities must meet or exceed. Chula Vista's local rules comply with all current state mandates:
| State law | What it does | Chula Vista application |
|---|---|---|
| AB 68 / SB 13 | Eliminates most ADU restrictions; mandates ministerial review | Chula Vista compliant; 60-day clock enforced |
| AB 671 | Sets 60-day review deadline; deemed-approved rule | Applies; city must approve or deny within 60 days of complete submittal |
| AB 3182 | Voids HOA ADU prohibitions | HOAs in Otay Ranch, Eastlake, Rolling Hills Ranch cannot block ADUs |
| SB 9 | Allows lot splits and duplexes on SFR lots | Available in Chula Vista; each SB 9 lot can have its own ADU |
| SB 1186 (retroactive legalization) | Streamlines permitting of existing unpermitted ADUs | Available; requires full code compliance inspection |
| AB 2533 | Lowers penalty for unpermitted ADUs built before 2018 | Reduces fines for pre-2018 structures being retroactively permitted |
Chula Vista ADU development standards (size, setbacks, height, parking)
Size limits
- Detached ADU: up to 1,200 sq ft
- Attached ADU: up to 50% of primary dwelling's living area, maximum 1,200 sq ft
- JADU: 150–500 sq ft, contained within the primary dwelling's footprint
- State 800-sq-ft minimum entitlement: even if setbacks or lot constraints would restrict the ADU below 800 sq ft, Chula Vista must still allow up to 800 sq ft
Setbacks
- Rear and side setbacks: 4 feet minimum (state minimum for new ADUs)
- Front setback: same as primary structure requirement for zone
- ADUs on existing accessory structure footprints (garage conversions): may qualify for reduced or zero setback if structure is legally non-conforming
Height limits
- One-story detached ADU: 16 feet maximum (per state default)
- ADU above detached garage: up to 24 feet where the garage is within half a mile of transit or in a high-density zone
- Attached ADU: must not exceed the height of the primary structure
Parking
- No additional parking required for ADUs within half a mile of a major transit stop or bus rapid transit corridor
- Garage conversions: no replacement parking required when the garage is converted (state law prohibits cities from requiring replacement)
- For ADUs outside transit areas on large lots, one off-street space may be required
Property-specific risks that complicate permits
Bayfront Specific Plan area
Properties west of I-5 in the Bayfront Specific Plan area face additional design review requirements. ADUs in this zone must comply with Bayfront design guidelines (materials, massing, landscaping) on top of standard code requirements.
Soils and geotechnical constraints
Eastern Chula Vista has expansive clay soils and hillside conditions common in Otay Ranch, Eastlake, and Rolling Hills Ranch. These require a site-specific soils investigation unless a prior report covers your parcel. Ask Development Services to check at your pre-application meeting — many newer tracts have existing reports.
Fire Hazard Severity Zones (VHFHSZ)
Parcels in state-designated Very High Fire Hazard Severity Zones must use Class A fire-rated roofing, ember-resistant vents, non-combustible siding within 5 feet of the exterior wall, and comply with defensible space requirements. These add cost but do not change the 60-day review timeline.
HOA CC&Rs in planned communities
Eastlake, Otay Ranch, Rolling Hills Ranch, and other master-planned communities have HOAs with architectural review boards. California law (Civil Code §4751) prohibits HOAs from blocking ADUs outright, but they can impose reasonable design standards. Build time for HOA architectural review into your pre-construction schedule — typically 30–60 days.
Steep slopes and retaining walls
Hillside lots common in eastern Chula Vista often require grading permits, retaining walls, and drainage engineering separate from the ADU building permit. These can add $15,000–$50,000 in site work costs and 4–12 additional weeks to the permit timeline.
Working with a builder who knows Chula Vista's permit quirks
SnapADU has completed ADU projects across Chula Vista — from Bayfront-adjacent parcels to Otay Ranch hillside lots. They know which Chula Vista tracts have existing soils reports on file, how to navigate the city's correction cycle, and which sub-contractors pass Chula Vista inspections reliably.
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How Chula Vista homeowners pay for ADUs
With total project costs for a detached Chula Vista ADU typically ranging from $180,000–$340,000, most owners combine a primary financing vehicle with equity built during construction:
- HELOC (Home Equity Line of Credit): Most common for owners with 25%+ equity. Draw only what you need; interest-only during construction. Requires home appraisal.
- Cash-out refinance: Converts equity to cash at a new rate. Works when current rates are near or below your existing rate. Closing costs ($5,000–$8,000) reduce net proceeds.
- ADU-specific construction loan: Some lenders (RenoFi, Lima One) issue loans against the completed ADU's projected value, unlocking more financing than standard equity-based products.
- California ADU Grant Program: CalHFA offers grants up to $40,000 for pre-development costs (design, permits). Income-eligible owner-occupants may qualify. Chula Vista properties are eligible.
See our ADU financing guide for a full comparison of each option with qualification thresholds and lender examples.
Why permits get delayed — and how to prevent it
| Delay cause | Prevention |
|---|---|
| Incomplete submittal (most common) | Use the pre-submittal checklist in this guide; attend the free pre-application meeting |
| Missing soils report | Check for existing on-file reports at pre-application meeting; order soils study before design starts if not covered |
| Energy compliance gaps | Hire a Title 24 consultant early; use a form that matches your HVAC and insulation spec |
| School fee documentation missing | Contact Sweetwater USD before submittal; confirm fee amount or exemption in writing |
| Slow correction responses | Respond to every correction notice within 5 business days; assign an experienced local designer or builder who monitors ProjectDox |
| Stormwater plan required but not included | Complete the Stormwater Applicability Checklist at submittal; have Engineering review it if your lot has drainage complexity |
Pre-submittal checklist: what to confirm before you click “submit”
Run through this checklist before submitting to Development Services. Every unchecked item is a likely incompleteness notice.
Honest tradeoffs: is a Chula Vista ADU worth it?
Chula Vista's ADU permit process is well-structured compared to many California cities — the City Standard program, free pre-application meetings, and online portal make it approachable. But the full government fee stack ($20,000–$30,000) and 3–6 month permit timeline mean this is a serious undertaking, not a quick project.
| Advantage | Limitation |
|---|---|
| City Standard program reduces design costs by $10,000–$20,000 | Impact fees ($10,000–$14,000) add significantly to total cost |
| Free pre-application meetings surface issues early | Soils requirements on hillside lots add 6–12 weeks and $3,000–$6,000 |
| 60-day ministerial clock prevents indefinite delays | Incomplete submittals restart the clock and add months |
| Strong rental market (near SDSU South Bay, Navy bases) | Sweetwater school fees on larger ADUs are among the highest in SD County |
| HOAs cannot block ADUs under CA law | HOA architectural review adds 30–60 days before city submittal |
What we verified
| Claim | Source | Verified |
|---|---|---|
| City Standard permit fee: $3,951 base / $7.84 per sq ft above 500 | City of Chula Vista FY 2025–26 Fee Schedule | May 2026 |
| Custom detached permit fee: $4,963 base / $9.83 per sq ft above 500 | City of Chula Vista FY 2025–26 Fee Schedule | May 2026 |
| Transportation DIF: $6,960 detached / $3,480 JADU | City of Chula Vista Development Impact Fee Program | May 2026 |
| Parks DIF: $3,399–$7,064 by size tier | City of Chula Vista Parks Development Impact Fee Schedule | May 2026 |
| Sweetwater USD school fee: $5.19/sq ft | Sweetwater Union High School District §17620 fee schedule | May 2026 |
| 60-day ministerial review mandate | California Government Code §65852.2(a)(3); AB 671 | May 2026 |
| HOA prohibition on ADUs void under Civil Code §4751 | California Civil Code §4751; AB 3182 | May 2026 |
| 4-foot rear/side setback minimum | California Government Code §65852.2(a)(1)(D); Chula Vista CVMC §19.58.022 | May 2026 |
Get your Chula Vista ADU project started today
SnapADU offers free consultations for Chula Vista homeowners. They'll confirm your City Standard eligibility, estimated permit fees, and construction timeline before you commit to anything.
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Prefer to go deep on your own first?
The ADU Starter Kit includes a project budget template, permit timeline tracker, contractor vetting checklist, and a financing comparison worksheet — everything to structure your research before your first builder call.
Get the free ADU Starter Kit →Frequently asked questions
Do I need a building permit for an ADU in Chula Vista?
Yes. All ADU types — detached, attached, garage conversion, and JADU — require a building permit from the City of Chula Vista Development Services Department. Operating an unpermitted ADU risks stop-work orders, code-violation liens, and required demolition.
How long does the Chula Vista ADU permit process take?
Plan for 3–6 months total from completed application submission to permit issuance, plus 3–5 months of construction. City Standard (pre-approved plan) projects routinely run on the low end. Custom detached ADUs with geotechnical requirements average 5–6 months to permit.
What is the 60-day ministerial review clock?
California law (AB 68, SB 13, AB 671) requires cities to approve or deny a complete ADU permit application within 60 calendar days. The clock starts when Chula Vista deems your submittal complete. If the city misses the deadline, the application is deemed approved by operation of law. This rule applies to all ADU types.
How much does an ADU building permit cost in Chula Vista?
City Standard detached ADU permit fees start at $3,951 for the first 500 sq ft, plus $7.84 per sq ft above 500. Custom/non-standard detached starts at $4,963 for the first 500 sq ft, plus $9.83 per sq ft above 500. Garage conversions start at $1,604. These are permit-only fees; impact fees (transportation $6,960, parks $3,399–$7,064) and school fees ($5.19/sq ft) are separate.
What is the City Standard ADU program in Chula Vista?
Chula Vista's City Standard ADU program offers pre-approved plan sets — one-story, up to 1,200 sq ft, with prescriptive structural details — that qualify for lower permit fees ($3,951 vs. $4,963+ base) and faster review. Applicants still need a site-specific soils assessment, but City Standard plans bypass custom structural engineering, saving $5,000–$15,000 in design costs.
Can I build an ADU without a soils report in Chula Vista?
Chula Vista requires a site-specific soils assessment for most ADU projects, but the city grants a soils-study waiver for properties that already have an approved geotechnical report on file. This is common in newer tract developments like Otay Ranch and Eastlake. Ask Development Services to check your parcel's existing soils data at your pre-application meeting.
What is a JADU and how does it differ from a standard ADU?
A Junior ADU (JADU) is a unit of 150–500 sq ft carved out of the existing primary dwelling's footprint. JADUs require an owner-occupancy covenant recorded on title, share a bathroom with the main house (or have an efficiency kitchen), and pay lower permit fees ($1,391). JADUs are exempt from most impact fees and may qualify for school-fee exemptions.
Does Chula Vista charge impact fees on ADUs?
Yes, Chula Vista charges transportation impact fees ($6,960 for detached ADUs, $3,480 for JADUs and attached ADUs under 500 sq ft) and parks development fees ($3,399–$7,064 depending on ADU size). Sewer capacity fees vary by meter size. JADUs are exempt from parks fees.
Do Sweetwater schools charge fees on every Chula Vista ADU?
Sweetwater Union High School District charges $5.19 per sq ft of new residential construction. ADUs of 500 sq ft or more typically pay. JADUs and internal conversions of existing permitted space may qualify for exemption under California Education Code §17620(b). Confirm with the district before permit submission.
Can my HOA stop me from building an ADU in Chula Vista?
No. Under California Civil Code §4751, HOAs cannot prohibit ADUs or JADUs on single-family lots. They may impose reasonable design standards (materials, colors, screening) but cannot use those standards to effectively prohibit construction. HOA approval delays do not pause the city's 60-day review clock.
What are the size limits for a Chula Vista ADU?
Detached ADUs can be up to 1,200 sq ft. Attached ADUs are capped at 50% of the primary dwelling's living area, up to 1,200 sq ft. JADUs are limited to 500 sq ft. Chula Vista also follows the state 800-sq-ft minimum entitlement: if your setbacks or lot constraints would otherwise limit an ADU below 800 sq ft, the city must still allow up to 800 sq ft.
Do I need to be an owner-occupant to build an ADU in Chula Vista?
No. California law (AB 68) eliminated the owner-occupancy requirement for standard ADUs. As of 2025, owner-occupancy is only required for JADUs (Junior ADUs), which must have an owner-occupancy covenant recorded on title. Standard detached and attached ADUs can be built and rented by non-owner landlords.
Can I build more than one ADU on my Chula Vista property?
Yes. California allows one attached or detached ADU plus one JADU on a single-family lot. On multifamily properties, the state allows two detached ADUs plus conversions of existing non-livable space (garages, storage, utility rooms). Chula Vista follows state minimums.
What happens if I build an ADU without a permit in Chula Vista?
Unpermitted ADUs are subject to code-violation orders, daily fines up to $1,000, and liens on the property. The city can require you to demolish the structure or obtain a retroactive permit (often harder and more expensive than getting one upfront). Retroactive legalization under California's SB 1186 program is available but requires full compliance with current building code, which may mean opening walls for inspection.