ADU Pass
Solana Beach
ADU Pass helps homeowners in Solana Beach, San Diego County, California navigate the permit paperwork for building an accessory dwelling unit. This area covers 1 ZIP code.
Map
ADU details
ADU legality: allowed
Solana Beach permits ADUs by right in all single-family residential zones via ministerial review. The single most consequential local wrinkle: the entire city is in the California Coastal Zone, so a Coastal Development Permit (CDP) or CDP exemption finding is required in addition to the building permit. Bluff-edge parcels face geotechnical-analysis requirements (40-ft minimum bluff setback, 75-year erosion analysis, no reliance on bluff-retention devices) that can extend timeline by 2-4 months.
Cost scenarios
| Scenario | Sq ft | Permit | Build | Total |
|---|---|---|---|---|
| minimum | 150 | $3,500 | $90,000 | $93,500 |
| 600 | 600 | $3,500 | $360,000 | $363,500 |
| midpoint | 850 | $7,500 | $510,000 | $517,500 |
| maximum | 1,000 | $9,000 | $600,000 | $609,000 |
Fee breakdown (as of 2026-04)
Permitting process
Viability (permitted uses)
- Long-term rental: yes Long-term (30+ day) ADU rental is by-right. AB 976 (2024) eliminated owner-occupancy as a permit condition; no Solana Beach owner-occupancy override permitted under state preemption.
- Short-term rental: with-restrictions Solana Beach STR ordinance regulates short-term rentals separately. ADUs deed-restricted as 'rental ADU' under state law cannot be rented < 30 days under most interpretations. Coastal-zone STR rules add an extra layer; check City Clerk for current STR registration program.
- Office rental: with-restrictions ADUs must be permitted as residential per SBMC § 17.20.040(D); renting an ADU exclusively as commercial office is prohibited. Owner home-office is permitted.
- Home office: yes Home occupation by owner-occupant permitted under SBMC home-occupation rules; no signage, limited customer traffic, no employees on-site.
- Studio / workshop: yes Personal artist studio / workshop within the ADU is a permitted accessory residential use. Common in Solana Beach given the Cedros Design District proximity.
- Agriculture: with-restrictions Limited urban agriculture (gardens, limited chickens) per residential animal-keeping standards. No agricultural-zoned land within Solana Beach city limits.
- Relative support: yes Multigenerational housing of relatives in the ADU is fully permitted; common Solana Beach use case for property owners housing adult children priced out of the local coastal market.
Incentives
Contacts
Utilities
- Water: Santa Fe Irrigation District (north Solana Beach, including Lomas Santa Fe and inland north) or San Dieguito Water District (south Solana Beach, including Cedros) — confirm via parcel address against utility-service-area map · 30d connect · $6,500
ADU may share primary residence water meter (SB 13). Santa Fe Irrigation District 5% potable water rate increase effective 2026-01-01 (per District board action). Capacity charge applies for ADUs > 750 sqft. Recycled-water credit available via SEJPA in some parcels. - Sewer: City of Solana Beach (collection); San Elijo Joint Powers Authority (treatment) — JPA created 1986 between Solana Beach and Encinitas · 30d connect · $4,500
San Elijo Water Campus permitted for 5.25 MGD secondary discharge to Pacific Ocean and 2.48 MGD tertiary recycled water to Solana Beach, Encinitas, Del Mar, Olivenhain MWD, and Santa Fe Irrigation District. SB 13 waives wastewater capacity charge under 750 sqft. - Electric: San Diego Gas & Electric (SDG&E) — investor-owned utility, sole electric provider for Solana Beach · 30d connect · $1,800
Title 24 2025 requires solar PV on new ADUs. SDG&E mandates separate meter or dedicated subpanel for ADU. Builder Services 1-877-789-9866. Some Solana Beach builders elect dual-meter setup for utility-bill separation despite ADU rental. - Gas: San Diego Gas & Electric (SDG&E) · 30d connect · $1,500
Many Solana Beach ADUs elect all-electric to avoid gas-line trenching given Title 24 incentives and tight coastal-lot footprints.
Property values & taxes
Solana Beach is one of the highest-value North County coastal markets — median ZHVI in 92075 typically tracks $2.2M-$2.6M depending on month and bluff-front exposure. Lomas Santa Fe estate parcels can exceed $5M; Cedros and inland multi-family stock skews lower.
Construction timeline
Realistic total: best 9mo · typical 14mo · worst 22mo
Solana Beach coastal-zone overlay extends 'worst-case' tail materially. Bluff-front parcels with required geotechnical analysis routinely exceed 18 months end-to-end. PADU pre-approved plan path saves 2-4 months of plan-check for non-bluff parcels. Contractor lead time runs 6-9 months given concentrated North County coastal demand.
Modular pathway inspectors are occasional with modular
Financing
State ADU loans:
- CalHFA ADU Grant Program up to $40,000
- HCD ADU Funding Index
Insurance impact
Solana Beach coastal-zone parcels carry materially higher insurance premiums than inland North County. Bluff-front parcels have seen carriers tighten or non-renew entirely; California FAIR Plan increasingly common as backup.
HOA prevalence & preemption
Solana Beach has a moderate HOA share concentrated in Lomas Santa Fe (master-planned Country Club community), Del Mar Beach Colony, and certain Cedros multi-family complexes. AB 670 (2019) and AB 3182 (2020) void any covenant that bans or unreasonably restricts ADUs. The 2026 Carlsbad case (per CalMatters coverage) established that HOA design-standards regimes can effectively delay or constrain ADU approval short of outright prohibition — same legal logic applies in Solana Beach.
Regulatory overlays (4)
- coastal-commission
ENTIRE city of Solana Beach is in the California Coastal Zone. Operates under a certified Local Coastal Program (LCP). Every building permit must clear CDP review or qualify for a categorical CDP exemption. Bluff-front parcels face the most intensive review: 40-foot minimum bluff setback per LCP/LUP hazards policies, 75-year erosion analysis, factor-of-safety geotechnical requirements, and explicit prohibition on relying on bluff-retention devices (seawalls) to reduce setbacks. - other
Solana Beach has been the focal point of California Coastal Commission seawall-fee policy. The 2018 seawall mitigation fee precedent (per Del Mar Times reporting) established that bluff-protection structures carry a public-trust mitigation obligation. New ADU construction near the bluff edge cannot rely on seawalls for setback compliance. - flood-zone
FEMA Special Flood Hazard Areas along the San Elijo Lagoon edge and certain low-lying coastal parcels. Elevation Certificate required; flood insurance mandatory if mortgaged. - wetland-overlay
San Elijo Lagoon / San Elijo Lagoon Ecological Reserve borders Solana Beach to the north. Parcels adjacent to the lagoon face Coastal Resource Protection Overlay constraints (sensitive habitat buffers, drainage / water-quality BMPs).
Technical envelope (climate & building code)
Climate & energy code
Building code
Amendments:
- Amendment
- Amendment
Contractor market (aggregate)
Legal history (timeline)
Current ordinance: SBMC § 17.20.040(D) (Ordinance 525), adopted 2023-12-13, last amended 2023-12-13
- 2017-11-08 — Solana Beach Ordinance 462 — initial post-AB 2299/SB 1069 ADU compliance update (city-ordinance)
First-generation Solana Beach ADU code update following 2016 California ADU statute reforms.
Effect: Brought SBMC § 17.20.040(D) into initial compliance with the then-new state ADU framework — by-right ministerial approval, parking exemptions, smaller setback minimums. - 2020-02-26 — Solana Beach ADU code amendment — AB 68/881/SB 13 conformance (city-ordinance)
Conforming local-code amendments responding to the 2019 California ADU bill bundle (AB 68, AB 881, AB 670, SB 13).
Effect: Removed the city's prior owner-occupancy requirement (sunset until 2025), added junior ADU pathway, removed impact fees on ADUs under 750 sqft, and added the deed-restriction-void provision for existing CC&Rs. - 2023-12-13 — Solana Beach Ordinance 525 — comprehensive ADU code rewrite (city-ordinance)
Adopted by City Council on 2023-12-13; submitted to HCD for review on 2023-12-21.
Effect: Replaced SBMC § 17.20.040(D) with the current ADU/JADU framework. Codifies SB 897/AB 2221 height standards (16 ft / 18 ft transit-adjacent), AB 1033 ADU-condo pathway, AB 976 permanent owner-occupancy ban, current size caps (850 sqft 1-BR, 1,000 sqft 2+BR), and confirms ministerial review. Requires CDP layered on top per Coastal Zone overlay. - 2025-12-16 — HCD findings letter on Solana Beach Ordinance 525 (state-action)
California Department of Housing and Community Development issued written findings reviewing Ordinance 525 compliance with state ADU law.
Effect: HCD review under Government Code § 65852.2(j). City must respond to any noncompliance findings within 30 days or the noncompliant provisions are void by operation of law.
Known issues (3)
- policy-review — HCD findings letter on Ordinance 525 issued 2025-12-16; specific noncompliance findings (if any) require city response within 30 days or affected provisions are void by operation of law. Track via HCD ordinance-review-letters page.
- other — Universal Coastal Zone overlay creates per-parcel CDP review; categorical exemptions help but do not eliminate the overhead. Bluff-front parcels are the most constrained ADU sites in San Diego County.
- other — Seawall mitigation fee precedent (Coastal Commission 2018) constrains options for bluff-protection structures that ADU placement might otherwise rely on.
San Diego County — county ADU rules and overlays
County ADU ordinance
San Diego County regulates ADUs on parcels in the unincorporated county under Title 6 of the County Code (Zoning Ordinance), Sections 6156.x. The county's ADU framework layers on top of California Government Code sections 65852.2 (ADU) and 65852.22 (JADU), which preempt many local standards statewide; the county ordinance fills in the locally-controlled parameters (setbacks, design standards, parking in non-transit unincorporated areas, fire-safe design in VHFHSZ) that state law leaves to local choice. The current ordinance reflects amendments adopted 2020 (Ord. No. 10693) and 2023 (Ord. No. 10749) to conform with AB 68 / AB 881 (2019), AB 976 (2019 owner-occupancy elimination through 2024), SB 13 (2019 fee reductions), AB 2221 / SB 897 (2022 design/permit clarifications), and AB 1033 (2023 condo-ADU optional program; San Diego County has not opted into AB 1033 condo separation as of 2026-04-20). The county permits up to one ADU plus one JADU per single-family parcel by right, and the state-mandated two ADUs per multifamily lot; parking is not required on ADUs within 1/2 mile of transit. The county's distinct contributions on top of state law are the fire-hardening / defensible-space design standards for ADUs sited in Very High Fire Hazard Severity Zones, the airport-noise compatibility review for ADUs within Airport Land Use Compatibility Plan (ALUCP) zones, and the Coastal Development Permit (CDP) requirement for ADUs in the county's certified Local Coastal Program (LCP) jurisdiction.
- San Diego County Code of Regulatory Ordinances Title 6 (Zoning) — Accessory Dwelling Unit provisions
- PDS ADU Technical Bulletin and applicant handouts
- Ordinance No. 10693 — 2020 ADU ordinance conforming to AB 68 / AB 881 / SB 13
- Ordinance No. 10749 (approximate) — 2023 ADU ordinance update for AB 2221 / SB 897 / AB 1033
State-floor overlay: California state law (Gov. Code 65852.2, 65852.22) preempts most local ADU regulation. The state sets ministerial-approval requirements, caps fees, mandates 60-day permit review, forbids local owner-occupancy requirements through 2024 (extended effectively through AB 976 / subsequent amendments), sets minimum allowed sizes (850 sqft one-bedroom, 1000 sqft two-bedroom), forbids parking requirements within 1/2 mile of transit or on replacement-covered-parking ADUs, and caps impact fees at zero for ADUs under 750 sqft. San Diego County's ordinance reiterates and applies these floors, adding only the locally-controlled fire, airport, and coastal overlays. Where a project is in a VHFHSZ or coastal-commission jurisdiction, state ADU preemption still applies to the ADU allowance itself but does not preempt the county's separate fire and coastal authority over site-design standards.
County regulatory overlays
San Diego County administers or co-administers several overlay regimes that materially affect ADU siting on unincorporated parcels: (1) the California Coastal Commission's jurisdiction along the coastal zone (a narrow band up to 5 miles inland in some places), implemented through the county's certified Local Coastal Program (LCP) covering unincorporated coastal segments; (2) Very High Fire Hazard Severity Zones (VHFHSZ) designated by CAL FIRE and reviewed by the State Board of Forestry, which cover very large portions of the unincorporated back-country and drive defensible-space, ignition-resistant-construction, and access requirements; (3) FEMA Special Flood Hazard Areas (SFHA) along the San Diego River, San Dieguito River, San Luis Rey River, Otay River, Sweetwater River, Tijuana River, and associated coastal zones; and (4) Airport Land Use Compatibility Plans (ALUCP) administered by the San Diego County Regional Airport Authority's Airport Land Use Commission around MCAS Miramar (federal military), NAS North Island / Naval Outlying Landing Field Imperial Beach (federal military), Gillespie Field (Santee, county-owned), McClellan-Palomar (Carlsbad, county-owned), Brown Field (Otay Mesa, City of San Diego), Montgomery-Gibbs Executive (Kearny Mesa, City of San Diego), Ramona Airport (county-owned), Fallbrook Community Airpark (county-owned), Oceanside Municipal, and Jacumba Airport. Seismic-retrofit overlays are not a county-administered regime in San Diego (unlike parts of Los Angeles / San Francisco); California seismic building-code compliance applies statewide through the California Building Code adopted by the county.
- California Coastal Commission / County Local Coastal Program (LCP) — The county's LCP covers the unincorporated coastal segments near Del Mar Mesa, Torrey Pines extensions, Crest / Harmony Grove (tributary areas), and the Camp Pendleton / Oceanside boundary. An ADU within the coastal zone requires a Coastal Development Permit (CDP) unless categorically excluded; most single detached ADUs qualify for an Administrative CDP (noticed but ministerial-like) while those in sensitive-biological or visually-sensitive settings may require a heard CDP. The Coastal Commission retains appeal jurisdiction over county CDPs within the defined appeals area. State law (Gov. Code 65852.2(j)) preserves the CDP requirement for ADUs in the coastal zone notwithstanding the otherwise-ministerial state ADU framework.
- CAL FIRE / State Board of Forestry Very High Fire Hazard Severity Zones (VHFHSZ) and County Fire Code — Very large portions of unincorporated San Diego County — most of the East County back-country including Julian, Warner Springs, Descanso, Pine Valley, Jacumba, Campo, Boulevard, Dulzura, Potrero, Palomar Mountain, Cuyamaca, and the San Diego / Cleveland National Forest interface — are designated VHFHSZ in either the State Responsibility Area (SRA) or the county's Local Responsibility Area (LRA). An ADU in a VHFHSZ must comply with California Building Code Chapter 7A (WUI-rated exterior materials: ignition-resistant siding, dual-pane windows, 1/8-inch-max vent screens, Class A roofing, non-combustible eaves / soffits / decks), minimum 100-foot defensible-space per Pub. Res. Code 4291, minimum driveway width and turnaround per fire-district standards, and minimum fire-flow water supply (2,500 gpm residential standard, reduced for sprinklered ADUs per Sec. R313). CAL FIRE or the local FPD (Alpine, Bonita-Sunnyside, Deer Springs, Julian-Cuyamaca, Lakeside, North County, Pine Valley, Rancho Santa Fe, Rural FPD of San Diego County, Valley Center, etc.) reviews the ADU permit. The 2025 wildfire season reinforced these requirements; no county-wide moratorium has been imposed, but permit backlogs lengthen post-fire when affected areas surge rebuild applications.
- FEMA Special Flood Hazard Areas (SFHA) — National Flood Insurance Program — The county administers FEMA NFIP floodplain regulations for unincorporated parcels. Principal SFHA extents are along the San Luis Rey River (Bonsall, Pala, Pauma), San Dieguito River (Lakeside, Ramona uplands), San Diego River (Lakeside, Santee extensions), Sweetwater River (Spring Valley extensions), Otay River (Jamul, Dulzura, Otay Mesa extensions), and Tijuana River estuary (Tijuana / Imperial Beach extensions). ADUs in an SFHA require lowest-floor elevation to or above Base Flood Elevation plus 1 ft county freeboard, flood vents on enclosures below BFE, anchoring, and a post-construction Elevation Certificate. 2024-2025 saw several FEMA FIRM revision studies for Otay, San Luis Rey, and Sweetwater watersheds; owners should confirm current effective panel before design.
- Airport Land Use Compatibility Plans (ALUCP) — San Diego Regional Airport Authority ALUC — The San Diego County Regional Airport Authority serves as the ALUC for all airports in the county. ALUCP airport influence areas (AIAs) extend roughly 2-5 miles beyond each airport depending on runway configuration and establish safety zones (Zones 1-6) and noise contours (60/65/70 dB CNEL). Principal ALUCP overlays affecting unincorporated parcels are MCAS Miramar (extensive AIA covering Scripps Ranch fringes, Miramar Ranch North, Tierrasanta approaches, into unincorporated Rancho Santa Fe / Poway fringes), Gillespie Field (AIA extending into unincorporated Lakeside, El Cajon fringes, Bostonia), McClellan-Palomar (Carlsbad-adjacent unincorporated areas), Ramona Airport (large rural AIA), and Fallbrook Community Airpark (Bonsall / Fallbrook). An ADU in a safety zone may face density restrictions, CC&R / avigation-easement recording requirements, and noise-attenuation construction standards (STC-rated windows, forced-air HVAC with acoustic treatment). The ALUC reviews county-referred projects; in a safety-zone conflict the county may override only by a super-majority Board vote per PUC 21676.
- San Diego County Biological Mitigation Ordinance / Multiple Species Conservation Program (MSCP) — The county's MSCP covers south county unincorporated areas and establishes Pre-Approved Mitigation Areas and a Biological Mitigation Ordinance that triggers biological review for grading and construction in designated preserve-land overlays. An ADU outside the existing dwelling footprint that requires grading in a designated MSCP preserve or Biological Resource Core / Linkage area will trigger a biological review / mitigation obligation on top of the ministerial ADU permit. Inside a parcel's previously-disturbed building envelope the MSCP typically does not add requirements. The East County MSCP Subarea Plan remains pending final approval as of 2026-04-20.
County permitting (unincorporated parcels)
The County of San Diego Planning & Development Services (PDS) department is the single-point-of-contact for ADU permits on parcels in the unincorporated county. Unincorporated San Diego County covers approximately 3,570 square miles (about 79% of the county's 4,526 sqmi land area) and includes densely developed fringe areas (Ramona, Alpine, Lakeside, Spring Valley, Fallbrook, Valley Center), rural back-country (Julian, Warner Springs, Jacumba, Boulevard, Campo), and tribal lands (which are not county-permitted). The 18 incorporated cities (San Diego, Chula Vista, Oceanside, Escondido, Carlsbad, Vista, San Marcos, El Cajon, Santee, La Mesa, Encinitas, National City, Poway, Coronado, Imperial Beach, Lemon Grove, Del Mar, Solana Beach) permit their own ADUs independently. PDS combines planning / zoning review, building plan review, grading / drainage review, fire-district referral (most unincorporated areas are served by CAL FIRE / County Fire Authority or a local Fire Protection District rather than a city fire department), and environmental review (CEQA applicability is normally exempt for ministerial ADUs per Gov. Code 65852.2(f) and Pub. Res. Code 21080(b)(8)).
California state — ADU law and programs
State ADU law
California has the most aggressive statewide ADU preemption regime in the US, built from ~15 bills passed 2019-2025 and enforced by the Department of Housing and Community Development (HCD). The 2026 HCD ADU Handbook addendum (in effect with the 2025 Title 24 code cycle) is the operative state-level reference. The regime does four things at once: (1) preempts local zoning that would ban or unreasonably restrict ADUs; (2) imposes by-right ministerial approval with short statutory deadlines; (3) caps fees and utility-connection charges; and (4) empowers HCD to void non-compliant local ordinances.
State HOA preemption
California has the strongest statewide HOA-preemption regime in the US for accessory dwelling units, built from two bills: AB 670 (2019) voided ADU-prohibiting covenants on single-family residential lots, and AB 3182 (2020) extended and codified the preemption into the Davis-Stirling Common Interest Development Act (Civil Code §§ 4740 / 4741). The combination prohibits common-interest communities from banning ADUs, restricting rentals below 25% of separate interests, or treating ADUs as separate HOA interests. Limits remain: HOAs retain authority over reasonable design standards and statutory height limits, and the 2026 Carlsbad case (CalMatters coverage) established that an HOA's documented design-standards regime can effectively delay or constrain ADU approval short of outright prohibition.
State financing programs
California's flagship state-level ADU financing program — the CalHFA ADU Grant Program — is paused and has not been refunded since the original $100 million allocation was fully deployed 2023-12-28. The program provided up to $40,000 per qualifying homeowner for pre-construction and non-recurring closing costs and financed approximately 2,500 ADUs in two rounds. As of 2026-04, no new funding round has been announced in the state budget. CalHFA continues to publish anti-scam warnings because bad actors actively solicit homeowners claiming access to grant funds that no longer exist. State-level financing activity has shifted to local pilot programs (San Francisco, San Jose, Los Angeles, San Diego) and private financing products (Fannie Mae ADU mortgage, HELOC, construction-to-permanent).
State housing programs
California's state-level ADU programs are concentrated at HCD (technical guidance, ordinance review, enforcement) and the paused CalHFA grant pipeline (covered under stateFinancing). The state does not operate a central pre-approved ADU plan library — instead, AB 1332 (2024) created a preemption framework for local pre-approved plans with a 30-day ministerial-approval deadline, and major cities (Los Angeles, San Diego, San Jose, Sacramento, Berkeley) have rolled out their own plan catalogs. The California YIMBY coalition and other housing-policy organizations play an influential role in bill drafting; they are not state agencies but effectively drive much of the ADU legislative agenda. The Title 24 code cycle (now 2025, in effect for 2026 permits) is the authoritative building-code baseline.
Federal (United States) — ADU-relevant rules and programs
Federal ADU law
The United States has no federal statute that directly regulates accessory dwelling unit entitlement or design. Land-use authority over ADUs resides with states and local governments under the traditional police power. Federal engagement is limited to financing (Fannie/Freddie/FHA/VA/USDA), flood insurance (FEMA/NFIP), and discretionary housing programs (HUD), which are recorded in sibling sections of this file.
Federal financing programs
Federal housing-finance agencies and GSEs set nationwide underwriting rules that govern whether an ADU can be financed, appraised, and counted toward mortgage qualifying income. The relevant actors are Fannie Mae, Freddie Mac, FHA (HUD), VA, and USDA Rural Development.
Federal tax credits
There is no ADU-specific federal tax credit. ADUs may incidentally qualify for existing federal energy-efficiency and clean-energy tax credits when the ADU construction includes qualifying measures.
Federal housing programs
HUD administers several discretionary programs that can fund ADU-related activity at the grantee's election, but none is an ADU-specific program.
ZIP Code
- 92075
Post Office
- 153 S Sierra Ave, 92075