Inside Chula Vista's city limits the City's Development Services Department issues the permit for an ADU, a remodel, an addition or a new house, and accepts and reviews every plan set electronically. For an ADU the rules are the state's, word for word: on April 15, 2025 the City Council repealed its own ADU and junior ADU sections of the Municipal Code and its ADU page now states the Government Code's standards directly, so the questions that divide other cities, the rental term, a junior ADU's owner, the front setback, the fee line, have one answer here. Twelve City Standard plans from 498 to 1,199 square feet carry a 14-business-day review and a flat fee against 21 days for a custom unit. The City adopted the State's 2025 fire map in August 2025 and goes beyond it: ignition-resistant construction in the moderate zone and its own vegetation management area, and 100 feet of defensible space in every zone.
BHI in Chula Vista, from the record
- 1997Licensed in California sinceCheck the license
- 111Permits on the public record, 2000 to 2025See the projects
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- A+Better Business Bureau ratingSee the BBB profile
Four of the 111 permits on BHI's public record are City of Chula Vista permits in the Eastlake and Otay Ranch area, each closed with a final inspection: gas and electrical for an outdoor barbecue and fire pit in 2006, a retaining wall with a gas line and a patio cover with its outdoor kitchen in 2007, and a gunite pool and spa in 2011. BHI's ADUs of 2024 and 2025 took their permits in Escondido and on County land nearby.
Who issues permits here, and how does plan check run?
Chula Vista's Development Services Department issues building permits inside the city limits and takes every application through its Accela Citizen Access portal: plans uploaded, corrections returned by email, and a resubmittal of only the new, deleted or revised pages. The City publishes two review figures for an ADU, 14 business days for one of its standard plans and 21 for a custom unit, and no page prints the state's clocks, which bind it all the same: within 15 business days a notice of whether the application is complete, a decision within 60 days of a complete one, and approval by default if the City lets the clock run out.
The City's standard ADU checklist, dated January 2025, lists the set and the desks: a title sheet and a project sheet that answers whether the lot is in a very high fire zone, the wildland interface, a methane area or a floodplain and what the wastewater, solar, soils, sprinkler, water meter and electrical service are; energy calculations updated by an energy consultant for the site; a stormwater plan; a site plan with the utilities and the topography; the owner's affidavit and hold-harmless agreement; truss calculations stamped by a California engineer, which cannot be deferred with a City Standard plan; a soils report or an engineer's certification of the grade, with a waiver form; a waste management report with its deposit; and a grading permit only where the work cuts a slope or builds a retaining wall or an embankment. The Land Development section reads grading, Facilities Financing sets the impact fees, Environmental Services the waste plan, Fire Prevention the sprinklers and methane, and SDG&E and the water agency their own connections.
Inspections are booked online in the portal or on the automated inspection line, the Building, Fire Prevention and construction inspectors each coming on their own request. Water service is an application of its own: Sweetwater Authority serves the west of the city, Otay Water District the east and California American Water a small area, and Sweetwater puts an ADU's service at about six weeks of review and eight of construction.
For the projects homeowners bring most often:
- An ADU or junior ADU: the building permit under the statute's standards, 14 or 21 business days of review, the checklist's set, the water agency's application, and the impact fees only from 750 square feet.
- A kitchen or bath remodel touching plumbing, wiring or walls: the portal's building permit, under the 2025 codes in force since January 1, 2026.
- An addition or a second story: the zone's standards, school fees above 500 square feet, Chapter 7A construction on a lot in any mapped fire zone or the City's vegetation management area, and a grading permit where a slope is cut.
- A new house: full plans, the hillside district's slope rules where it applies, the floodplain rules along the rivers, the fire and wildland codes, the public facilities, park, transportation and sewer capacity fees by the unit, and the water agency's capacity fee and meter.
Where do Chula Vista's ADU rules differ from state law?
They no longer can. The City wrote its own ADU section in 2018 and amended it in 2019, 2021 and 2023, and in 2024 a Council member's proposal to allow a second detached ADU on every single-family lot went to the Planning Commission, which turned it down in August, and to the Council, which rejected it 4 to 1 in September and asked for more study. The City then went the other way: after a Planning Commission hearing noticed for February 26, 2025, the Council held its public hearing and first reading on April 1, 2025, 5 to 0, and on April 15, 2025 adopted Ordinance 3592 on consent, 5 to 0, repealing both sections outright so that the City defers to state law for every ADU standard. The repeal took effect in the code on May 20, 2025.
So the table is the Government Code, as the City's own ADU page now states it, and the list after the table says where the page, the checklist and the fee bulletins still read a little differently in their wording. With no local ordinance there is nothing for the state's housing department to review, and none of its letters names Chula Vista.
| Rule | In the City of Chula Vista |
|---|---|
| Units on a single-family lot | What the statute makes every city approve: a unit converted from existing or planned space with 150 square feet added for its door, a junior ADU of up to 500 square feet, and one new detached unit of up to 800 square feet, 16 feet high, with 4-foot side and rear setbacks, in combination; plus the ordinary attached or detached ADU. The City's page phrases the first part as one detached unit or one converted or attached unit, not both; the statute's combination governs, and the City's own practice in 2024 was the house, one of each and a junior ADU. |
| Multifamily lots | At least one unit, and up to a quarter of the building's count, converted from space nobody lives in; up to eight detached units beside an existing multifamily building and two with a planned one, never more than the building holds. The City's page says the same. |
| Size | A detached ADU up to 1,200 square feet; a converted or attached one up to half the house's living area or 800 square feet, whichever is more, as the City's page puts it, with the statute's floor of 850 square feet, or 1,000 with more than one bedroom, that no rule may cut under; a junior ADU 500 square feet of interior living space. |
| Height | A detached unit 16 feet; 18 feet on a lot within a half-mile walk of major transit, with 2 feet more when the roof pitch follows the house's, so the City's page's 20 feet belongs to those lots alone; 18 feet on a multistory multifamily lot; an attached unit up to 25 feet or the zone's limit, whichever is lower. |
| Setbacks | No more than 4 feet from the side and rear lines for a new unit, none for a conversion or a same-footprint rebuild, and no front setback or coverage rule that stops an 800 square foot unit. |
| Design | None of the City's own since the repeal; the statute's objective standards only, and none at all on the units it makes the City approve. |
| Parking | None, as the City's page says; the statute allows at most one space and exempts a unit near transit, in a historic district, inside the house or an accessory building, where street permits are required but not offered, near a car share, or filed with a new house, and requires no replacement of parking lost to an ADU. |
| Sprinklers, solar and connections | No sprinklers unless the house itself needs them. Solar on a new detached unit under the Energy Code, anywhere on the lot, as the City's energy sheet explains, now under the 2025 code. An ADU may share the house's water and sewer connections and have its own electric meter and address, the City says; Sweetwater Authority will not tap an existing service lateral for one, so on the west side the agency's own rule is the one to plan on. |
| Owner occupancy | None for an ADU, which the statute bars a city from requiring; for a junior ADU only while it shares the house's bathroom. |
| Rentals | A term longer than 30 days for an ADU or junior ADU. No ADU or junior ADU permitted on or after January 1, 2020 may be a short-term rental under the City's own rental chapter. |
| Selling a unit on its own | A junior ADU, never. An ADU only to a qualified buyer when a qualified nonprofit built it, under a recorded 45-year affordability covenant; the City has adopted no condominium ordinance. |
| Nonconforming conditions | Not corrected as the price of an ADU unless they threaten health or safety. |
| Fees | No impact or in-lieu fee on an ADU of 750 square feet of interior living space or less or on any junior ADU; above that, a share in proportion to the house, which the City's fee bulletin charges by the square foot. The City's page and bulletin say "under 750"; the statute says 750 or less and governs. |
| HOAs | In Otay Ranch, Eastlake and the other planned communities east of the freeway, a covenant that prohibits or unreasonably restricts an ADU built to state law is void; reasonable restrictions that do not drive up the cost or rule the unit out survive. No City document adds to that. |
Where the City's documents still read differently from the statute, in wording rather than rule:
- The fee line. The ADU page, the checklist and the fee bulletin say a unit under 750 square feet is exempt, and the page cites the Government Code section the state renumbered in 2024 and 2025; the statute's 750 square feet or less governs, so a unit of exactly 750 pays none.
- The 20 feet. The page lists 20 feet to match the house's roof pitch without the statute's condition that the lot be within a half-mile walk of major transit.
- One detached or one converted unit, the page says; the statute allows them in combination.
- The R-1 zone's list of accessory uses still points to the repealed section, and the energy sheet the page links is the 2022 edition; the statute and the 2025 Energy Code govern.
Can you build from a pre-approved ADU plan here?
Yes. Chula Vista's City Standard ADU plans, drawn for the City by SnapADU with a regional grant, come in six sizes and twelve options, each in a flipped version and in slab-on-grade and raised-foundation variants: 498, 748, 749 square and 749 L-shaped, 999 L-shaped and 1,199 L-shaped square feet, from one to three bedrooms. A standard plan is reviewed in 14 business days against 21 for a custom unit, pays one flat permit fee that the fee bulletin sets about a thousand dollars under a custom unit's, and comes with a signed hold-harmless agreement and affidavit; the energy documents are updated by a consultant for the site, and the trusses, the soils and the site plan are the owner's to add. A designer may also have a detached plan of their own approved as a City Standard plan, by a concurrent request or on its own, and homeowners then contract with that designer.
One thing to confirm with the Department: the set was drawn to the 2022 codes, and since January 1, 2026 the 2025 codes apply; the statute gives its 30-day clock to a plan pre-approved under the cycle in force, and no City page says the set has been approved again.
Fire, the bayfront coast, hillsides, floodplains and the planned communities
Chula Vista adopted the State Fire Marshal's map of March 24, 2025 as drawn, by Ordinance 3598, first read July 22 and adopted August 5, 2025 on a 3 to 0 vote with two abstentions, in force from September 4, 2025, and added two things of its own. A Special Designated Vegetation Management Area on a City map of March 26, 2025, and a rule that the ignition-resistant materials and methods of Chapter 7A, which the state asks in the very high and high zones, apply to all new construction in the moderate zone and in the management area too. Ordinance 3599 set 100 feet of defensible space in every zone: Zone 0 in the first 5 feet under the state's rules, Zone 1 to 30 feet and Zone 2 to 100, with an approved fire protection plan for a planned area overriding the outer zones. The 2025 Fire Code and Wildland-Urban Interface Code followed in November 2025, in force January 1, 2026. The eastern and southern edges of the city, along the Otay River and the open space, hold the largest interface.
The City's coastal zone is the bayfront west of the freeway from the northern boundary to Palomar Street, under the Bayfront Specific Plan that serves as its Local Coastal Program, whose only residential district is for mid-rise and high-rise towers; no single-family lot and no ADU rule sits in it, and the City's coastal chapter exempts improvements to a single-family house from a coastal development permit. Since October 10, 2025 a local decision on an ADU's coastal permit cannot be appealed to the Coastal Commission in any case.
Where the hillside modifying district attaches to a zone, the density and the grading allowed for a residential lot follow the average natural slope under the City's hillside graph, and the checklist's rule makes a grading permit the practical trigger: cutting a slope, a retaining wall or an embankment. Along the Sweetwater and Otay rivers the City's floodplain chapter, kept for the national flood insurance program, puts the Building Official and the City Engineer over any work in a mapped flood hazard area, and the plan guide warns that a floodplain lot may need more. A designated historic resource takes the City's historic review before alteration; an ordinary house does not. Of the east side's covenants, the City says nothing; state law limits them, as the table says.
Which fees apply, and where are the schedules?
Chula Vista keeps its fees in a master schedule of numbered bulletins, updated each October. Chapter 10 prices the permits: one flat total for a detached City Standard plan, intake, plan check and inspection together, a higher one for a custom detached unit up to 1,200 square feet, and separate lines for an attached first-story unit, a multistory unit, a garage conversion and a conversion of living space, each by the first few hundred square feet and the rest, with plan check after the third submittal billed by the hour. Chapter 16 holds the development and in-lieu fees and Chapter 12 the sewer capacity charge, both in their October 2026 editions.
- Impact and in-lieu fees. None on a junior ADU or an ADU of 750 square feet or less; above that, every fee a single-family unit pays, charged in proportion to the house by the square foot: the citywide public facilities fee, the parkland acquisition and development fee at its west-of-the-freeway and east-of-the-freeway rates, the western or eastern transportation fee, the traffic signal fee west of the freeway, the sewer basin fees in the Salt Creek and Poggi Canyon basins and the pedestrian bridge fees in the Otay Ranch villages, and the inclusionary in-lieu fee per square foot of market-rate space. Facilities Financing calculates them at the permit.
- School fees. Chula Vista Elementary's rate per square foot, set October 12, 2026, and Sweetwater Union High School District's, set June 22, 2026 with a lower rate inside the San Ysidro boundary, both on an ADU of 500 square feet or more and none under it, paid to the districts before the permit.
- Sewer. The City's own sewer capacity charge per equivalent dwelling unit, a single-family unit counting as one; the bulletin has no ADU row, and under state law a unit inside existing space is not a new residential use for a capacity charge, with a new unit's charge capped at its share.
- Water. Sweetwater Authority's capacity fee per equivalent dwelling unit, on its page at its 2021 figure with no newer one posted, and a new domestic service and meter where the existing meter cannot carry the added demand; Otay Water District's connection fee as its demand factor by meter size times its districtwide capacity fee; and on any new or larger meter the County Water Authority's own capacity and treatment charges, stepped on January 1, 2026.
- Everything else. The waste management deposit, the energy consultant's update of the standard plan's documents, the soils report or the engineer's grade certification, and a business licence for a contractor.
How many ADUs Chula Vista permits
Chula Vista is the county's second city for ADUs after San Diego itself: 16 reported in 2018, 246 at the peak in 2024, 223 in 2025.
- 162018
- 782019
- 412020
- 1242021
- 2272022
- 1482023
- 2462024
- 2232025
ADU building permits in the year Chula Vista reported them to HCD (Table A2's ADU category), units permitted rather than finished, junior ADUs having no category of their own on the form. The City's 2019 report holds 38 units it had permitted in 2018, and its 2022 report 7 permitted in 2023. The City's own 2023 report gives the same 148 permitted, with 80 completed; its 2024 and 2025 reports were accepted in March 2025 and March 2026 but could not be opened.
Recent changes in Chula Vista
What has changed in the City's permit rules since 2024, newest first.
With no local ADU sections since 2025, Chula Vista applies the Government Code as written, so two new detached units arrive with it; in Otay Ranch, Eastlake and the other planned communities, the HOA protection now covers lots zoned to allow a house. See our ADU law guide.
Chula Vista Elementary's school fee rate took effect; the City's October 2026 fee bulletins indexed the public facilities and sewer capacity charges the same month.
Sweetwater Union High School District's school fee rate took effect, set at its April 20, 2026 hearing.
The Council accepted the City's 2025 housing progress report on consent.
The 2025 Building, Energy, Fire and Wildland-Urban Interface Codes took effect, adopted in November 2025; the state's 2025 ADU bills and the County Water Authority's charges stepped the same day.
Ordinances 3598 and 3599 took effect: the State's 2025 fire map adopted as drawn, the City's vegetation management area, Chapter 7A construction in the moderate zone too, and 100 feet of defensible space in every zone; adopted August 5, 2025.
Ordinance 3592 was codified: the City's own ADU and junior ADU sections repealed, state law the rule for every standard; adopted April 15, 2025 after the April 1 hearing.
The Council accepted the City's 2024 housing progress report on consent; the City's short-term rental guidelines were amended on March 6.
The standard ADU checklist was posted, with the plan guide of December 31, 2024, as the City Standard plans came into use.
By this date the Council had rejected, 4 to 1, a proposal to allow a second detached ADU on single-family lots, which the Planning Commission had turned down on August 14, 2024, and asked for more study.
The permit fee bulletin of September 2024 was posted with the flat fee for a City Standard ADU.
What BHI has seen here
Past the statute: what BHI's own permit record shows in Chula Vista.
BHI's public permit record holds four City of Chula Vista permits, all on the east side and all closed with a final inspection: the gas and electrical lines for an outdoor barbecue and fire pit in September 2006; a City-standard retaining wall with a gas line, and a City-standard patio cover with the gas and electrical for a barbecue, fire pit and outdoor refrigerator, both issued in May 2007; and a gunite pool and spa in August 2011. None is an ADU, and the City's record carries issue dates only, so its review times are not on the public record; so the planning figures are the City's own 14 and 21 business days and the statute's 60-day clock, with the County's Escondido-area units as BHI's only measured ADU plan-review times.
What an ADU might rent for in Chula Vista
There is no published rent for ADUs on their own; the table is HUD's FY2027 Small Area Fair Market Rents for Chula Vista's five ZIP codes, the figures the ROI calculator begins with: the 40th-percentile rent among recent movers for each size, utilities in.
| ZIP | Studio | 1 bed | 2 bed | 3 bed |
|---|---|---|---|---|
| 91910 | $2,010 | $2,140 | $2,590 | $3,430 |
| 91911 | $2,070 | $2,200 | $2,660 | $3,530 |
| 91913 | $2,900 | $3,090 | $3,740 | $4,960 |
| 91914 | $3,200 | $3,410 | $4,120 | $5,460 |
| 91915 | $2,960 | $3,150 | $3,810 | $5,050 |
HUD's FY2027 rents for ZIPs 91910, 91911, 91913, 91914 and 91915 by bedroom count, as the ROI calculator holds them; the first two are the west side, the last three Eastlake and Otay Ranch. The ROI calculator carries them over 30 years for your lot.
Next steps
Check your lot against the state rules Chula Vista applies and its fire map, price the ADU, then read what fits your project.

