Municipal guide · Westside
Santa Monica planning and approval guide.
A practical sequence for identifying the rules, studies and decisions that may shape a residential project. This is general planning information, not legal advice or a determination of buildability.
1. Confirm jurisdiction and property records
An address inside incorporated Santa Monica is generally reviewed by the City of Santa Monica. Confirm the parcel, zoning, recorded improvements and reviewing department before relying on a concept.
- Verify the exact address and assessor parcel record.
- Compare existing conditions with available permit records.
- Identify title, easement or private agreement questions for qualified review.
2. Test planning requirements
Planning feasibility begins with the applicable zone and any overlays. Setbacks, height, lot coverage, access, parking and design review depend on the property and proposed use.
- Coastal-zone location can add a separate review layer; parcel status should be confirmed at the outset.
- Residential and mixed-use districts can follow different zoning and entitlement paths.
- Historic districts or resources can affect demolition, additions, exterior changes and documentation.
- Context flags to verify: coastal review, mixed use, historic-resource review.
3. Assemble the review package
The required package follows the scope and site. A coordinated submittal may involve architectural drawings, survey information, structural work, energy documentation and specialist reports.
- Existing and proposed site information.
- Architectural plans and project description.
- Engineering, energy and specialty studies when applicable.
4. Navigate review and corrections
The City of Santa Monica determines its intake and review sequence. Departments may request corrections or outside-agency clearances before permit issuance. No schedule should be assumed before the city confirms the path.
- Complete early due diligence and consultant coordination.
- Submit to the correct planning and building channels.
- Track comments, coordinated responses, clearances and issuance.
ADU · First submission
Before filing in Santa Monica
State baseline: confirm the ADU path under current state law. The municipal steps below do not decide parcel eligibility. State ADU rules
- First agency
- City Planning publishes the single-unit parcel guide; Community Development handles building-permit intake. Coastal review may add another authority.
- Bring
- Parcel address, existing home and proposed ADU type, lot measurements and any coastal or historic designation; a sloped lot may need a survey.
- First action
- Use the November 2025 single-unit-parcel ADU guide to identify the building-permit path and check coastal status before submittal.
- Municipal implementation
- The city guide says ADUs and JADUs generally need a building permit; a Coastal Development Permit or waiver may also apply in the Coastal Zone. California-register historic resources can have additional standards.
- Parcel checks still open
- Coastal boundary, historic listing, slope and design-specific plan check remain parcel-dependent.
- Next decision
- Confirm coastal and historic status, then request the current building-permit submittal requirements for the chosen ADU type.
Official documents · links checked Sep 26, 2026
- City Planning — ADUs on single-unit dwelling parcelsDocument: 2025-11 · Only parcels with a single-unit dwelling; coastal/historic status requires property check
Confirm Santa Monica jurisdiction.
A postal address does not confirm city limits. Verify the parcel and current requirements with Planning before filing.
City planningSources to verify
Current rules, from the source.
- California HCD — ADUs State ADU statutes, guidance and official handbook materials.
- California CSLB — License Check Verify a California contractor license directly with the licensing authority.
- California Building Standards Commission Published California building codes and adoption information.
- California Energy Commission — Title 24 Current building energy-efficiency standards and official updates.
- Los Angeles County Assessor Portal Public parcel and assessment records for property research.
- California Coastal Commission State coastal planning, permitting and Local Coastal Program resources.
Planning questions
Decisions before filing in Santa Monica
What happens after a submission to Santa Monica planning?
The package is typically routed for completeness review, then technical review, corrections and any outside clearances. Track every comment against the coordinated drawing set, and confirm the current process and turnaround with the city rather than assuming a timeline.Does the coastal zone apply to this address? (Santa Monica)
That is decided parcel by parcel, not by how close the ocean feels. Confirm the coastal-zone boundary for the exact parcel, whether the city carries a certified local coastal program, and which body issues the coastal development permit.Why does the zoning district matter more than the neighbourhood name? (Santa Monica)
Because a residential district and a mixed-use district can face the same street while following different height, parking, use and review rules. The district and any overlay assigned to the exact address determine the path.What changes if the property is historic? (Santa Monica)
Demolition, street-facing additions, window and material choices and the documentation in the file. Confirm designation or contributor status and the applicable review before committing to an exterior design.What ADU size and height apply in Santa Monica?
Typical parameters recorded for Santa Monica: maximum size Set by SMMC 9.31.025; the city applies the state size floor and its own standards for attached units, height 16 ft detached; up to 18 ft within ½ mile of a major transit stop; up to 25 ft attached (Gov. Code § 66321), rear and side setbacks 4 ft rear and 4 ft side minimum (Gov. Code § 66321). State law sets the floor and the city adds detail, so confirm the current figures for the parcel before design.Does Santa Monica require fire sprinklers or solar for an ADU?
Recorded locally: sprinklers — Only required if the primary dwelling has sprinklers (Gov. Code § 66314). Solar — Newly built detached ADUs fall under the Title 24 solar PV requirement. Both are triggered by conditions rather than by address alone, so verify against the current code edition for the project scope.Can an ADU in Santa Monica be rented short-term?
Recorded position: Vacation rentals are prohibited; only hosted home-sharing in your own residence is allowed Short-term rental rules are local and change often, so confirm the current ordinance and any registration requirement before counting on that income.What is specific about the Santa Monica review process?
ADU review is ministerial with no design review, and the city maintains a pre-approved ADU plan set. Parcels in the Coastal Zone still need coastal review. Confirm the current version with the city for your application date.Where are Santa Monica requirements published?
The city publishes them at santamonica.gov, with the planning division pages at santamonica.gov. Confirm anything decision-critical there — or with the state or regional authority responsible for a mapped condition — and record the date you checked, because forms and thresholds change.Where is Santa Monica relative to the RSA studio?
Santa Monica sits about 7.2 miles south-west of the studio at 8484 Wilshire Blvd in Beverly Hills, and about 14.4 miles west of Downtown Los Angeles. Distance matters less than jurisdiction: the review path is set by the City of Santa Monica, not by proximity to anywhere else.Which cities border the Santa Monica area?
The closest incorporated cities are Culver City (5.4 mi), Beverly Hills (6.4 mi), El Segundo (8.2 mi). Each one runs its own code, intake process and review staff, so a neighbouring city's requirements do not transfer to a Santa Monica address.Does a city guide confirm what can be built?
No. Public maps and general guidance are screening tools. A buildability conclusion needs the exact address, the current code, recorded conditions, a defined scope and confirmation from the responsible authority.What property records should I collect first?
The assessor parcel record, available permit history, a current survey when relevant, title information and clear photographs of existing conditions. With those in hand, missing documents and specialist studies can be identified quickly.How should budget and schedule be discussed at this stage?
As ranges tied to a written scope, stated assumptions and unresolved risks. Neither a budget nor a schedule can be set from a city name alone; both are updated as property information and agency feedback arrive.
Initial review
Turn the guide into next steps.
Share the address and intended scope to organize a property-specific review.