Local code · Santa Monica
Santa Monica — Demolition & Relocation
The Santa Monica Demolition & Relocation, explained in plain English with the controlling citations.
Quick answer
In Santa Monica, removing more than 50% of a building’s exterior-wall elements over 5 years is demolition, and moving a building to another parcel also counts as demolition. § 9.25.030(A)–(B) A relocated structure must meet the destination site’s height, setback, FAR, and density standards, with work started within 30 days and completed within 365 days. § 9.25.050
Last reviewed: September 21, 2026 · AI-generated analysis · General information, not legal advice · detailsless
Compiled from Santa Monica's adopted code with AI research tools and grounded in the sources cited below. Verify with Santa Monica planning staff before relying on it.
Overview
Santa Monica Municipal Code Chapter 9.25, Demolition and Relocation, regulates the demolition, removal, and moving of buildings and structures anywhere in the City. Its central purpose is to protect character-defining buildings, historic resources, and older smaller-scale multi-unit housing while allowing demolition that advances public safety or adopted planning goals. § 9.25.010
Moving a building to another parcel is legally treated as a demolition in Santa Monica, even when the building will be preserved and reused. § 9.25.030(B)
Chapter 9.25 is citywide rather than a district-use chapter. Parcel zoning still matters when a structure is moved, because the receiving site must satisfy the applicable Santa Monica Zoning and Santa Monica Development Standards.
When Chapter 9.25 Applies
No building or structure may be demolished, removed, or relocated unless Chapter 9.25 authorizes it. § 9.25.020(A) The code uses a cumulative, substance-over-label approach: a project may be demolition even if described as a remodel or partial alteration.
| Trigger or rule | Decision-relevant standard | Code Reference |
|---|---|---|
| General applicability | City authorization is required to demolish, remove, or relocate a building or structure. | § 9.25.020(A) |
| Standard building demolition | More than 50% of exterior-wall elements removed over any 5-year period constitutes demolition. | § 9.25.030(A)(1) |
| Commercial/industrial structural demolition | For buildings not principally supported by exterior bearing walls, removal of more than 50% of principal support structure constitutes demolition. | § 9.25.030(A)(2) |
| Historic Inventory building threshold | For an Inventory structure over 40 years old, removal or qualifying alteration of more than 25% of street-facing wall(s), or 50% of all exterior walls, constitutes demolition. | § 9.25.030(A)(3) |
| Pre-permit engineering review | Work removing over 40% of exterior walls requires a structural-engineer verification; the comparable street-facing threshold for covered Inventory structures is 20%. | § 9.25.030(C) |
| Relocation completion | Work associated with a relocated structure must start within 30 days and finish within 365 days after relocation onto the site. | § 9.25.050(B) |
| Unauthorized historic demolition | The City may withhold new-development permits and record an affidavit for up to 5 years. | § 9.48.050 |
What Counts as Demolition
For most buildings, demolition occurs when more than 50% of exterior-wall elements are removed or cease to be necessary, integral structural components during any 5-year period. Exterior-wall elements include structural cladding, columns, studs, cripple walls, other vertical load-bearing elements, associated footings, windows, and doors. § 9.25.030(A)(1)
The measurement is based on the horizontal perimeter of exterior wall removed between the footings and the ceiling of each story. Existing exterior walls can remain structurally integral during a roofline or new-floor modification if they stay in place and provide the necessary completed-project support. § 9.25.030(A)(1)(b)–(c)
For commercial or industrial buildings whose primary support is not exterior bearing walls, the test shifts to the building’s principal structural system. Removing more than 50% of columns, structural frames, or similar primary structural elements is demolition. § 9.25.030(A)(2)
Older Buildings and Historic Resources
A structure over 40 years old on the City’s Historic Resources Inventory has lower demolition thresholds. Demolition includes removal of more than 25% of public-street-facing wall area, including cladding, or more than 50% of all exterior walls; qualifying enclosure or window changes can also trigger the rule. § 9.25.030(A)(3)
For these Inventory properties, remaining exterior walls must be contiguous, retain their existing exterior cladding, and may not receive new wall covering over that existing cladding. A project team should coordinate early with Santa Monica Historic Preservation, because City-designated historic resources require an approved Certificate of Appropriateness or Certificate of Economic Hardship before demolition. §§ 9.25.030(A)(3), 9.25.040(D)
If a historic resource is demolished without a required permit, the Building Official may withhold a building permit for the site and record an affidavit barring permits for new development for up to 5 years. § 9.48.050
Permit Preconditions and Review Sequence
Before filing a demolition-permit application, the applicant must prominently post the City’s notice of intent to demolish on the property. § 9.25.040(C) Where required, the applicant must first obtain a removal permit from the Rent Control Board. § 9.25.040(A)
For a multi-unit dwelling structure or a structure in a Neighborhood Conservation Overlay District, Santa Monica requires the final permit to commence construction on the replacement project before approving demolition, unless the structure is exempt. A written property-maintenance plan approved by the Director is also required. § 9.25.040(B) See Santa Monica Overlay Districts for the separate overlay framework.
For an older structure whose original permit was issued more than 40 years before the demolition application, the City sends complete filing materials to each Landmarks Commission member within 7 days. The materials include the completed application, site plan, 8 building photographs, and proof that the notice was posted. § 9.25.040(E)(1)
A potential landmark, historic-district, or structure-of-merit application has a 75-day window after receipt of a complete demolition application. If no designation application is filed in that period, demolition may proceed only after all other legal requirements are met; if one is timely filed, no permit issues until the designation matter reaches a final decision. § 9.25.040(E)(2)–(3)
Projects needing Planning Commission, Architectural Review Board, or Zoning Administrator review cannot be accepted for filing until applicable older-building review is complete. That sequencing makes early coordination with Santa Monica Design Review especially important. § 9.25.040(F)
Relocation of Buildings and Structures
Relocation is not a shortcut around demolition controls. It must satisfy the demolition requirements and the development rules of the destination parcel, including building height, setbacks, floor area ratio, and unit density. § 9.25.050(A)
A relocated City-designated landmark or structure of merit may receive nonconforming setbacks and site orientation only through a Landmarks Commission Certificate of Appropriateness. That is a discretionary historic-preservation pathway, not a general exception to destination-site standards. § 9.25.050(A)
Before the relocation building permit is issued, the applicant must post a Building Officer-approved notice of intent to relocate on the destination parcel. Construction or rehabilitation must commence within 30 days and be completed within 365 days after the structure arrives. § 9.25.050(B)–(C)
District-by-District Applicability
All Santa Monica Zoning Districts
Chapter 9.25 establishes no separate demolition thresholds, permitted-use lists, lot dimensions, or height limits by district. Its demolition and relocation controls apply citywide, while the receiving parcel for a relocated building must meet the standards of its actual zoning district. §§ 9.25.020(A), 9.25.050(A)
- Purpose: regulate removal and relocation while protecting Santa Monica’s built environment and historic resources. § 9.25.010
- Typical permitted uses: Not found in source materials; Chapter 9.25 does not establish use permissions.
- Dimensional standards: Not found in source materials for individual districts; relocation must comply with destination-site height, setback, FAR, and density rules. § 9.25.050(A)
- Where it applies: every building or structure in the City, subject to stated exemptions. § 9.25.020(A)–(B)
Limited Exemptions
An accessory building with less than 400 square feet of floor area is exempt only if it is neither a City-Designated Historic Resource nor listed on the Historic Resources Inventory. § 9.25.020(B)(1)
A building or structure may be demolished when the Building Official determines it is unsafe, presents a public hazard, is not securable, and/or faces imminent collapse endangering people or property. The determination follows the then-current California Building Standards Code criteria. § 9.25.020(B)(2)
Replacement Projects and Related Limits
Demolition of residential units can trigger separate replacement-unit requirements; those requirements are governed by § 9.34.020, not Chapter 9.25. Chapter 9.25 itself requires the replacement project’s final construction-start permit for covered multi-unit and Neighborhood Conservation Overlay District sites before demolition approval. §§ 9.25.040(B), 9.34.020(A)
A nonconforming City-designated historic resource or Historic Resources Inventory building that is demolished may be replaced or rebuilt in kind under § 9.27.030(F). Illegal nonconforming buildings and uses receive no continuation right and must be removed upon notice. §§ 9.25.030(D), 9.27.080
Checklist
- Determine whether the scope removes more than 50% of exterior-wall elements over 5 years, or more than 50% of principal structure in a covered commercial/industrial building. § 9.25.030(A)(1)–(2)
- Confirm whether the property is over 40 years old and on the Historic Resources Inventory; apply the 25% street-facing and 50% total-wall tests if it is. § 9.25.030(A)(3)
- If work exceeds the advance-review thresholds, provide a registered structural engineer’s written verification and have the owner and contractor sign the required affidavit. § 9.25.030(C)
- Post the City notice of intent to demolish before filing the demolition application. § 9.25.040(C)
- Obtain a Rent Control Board removal permit if required. § 9.25.040(A)
- For covered multi-unit or Neighborhood Conservation Overlay District sites, obtain the final replacement-project construction permit and written property-maintenance-plan approval. § 9.25.040(B)
- Complete the older-building notice and Landmarks Commission review sequence where the original permit is over 40 years old. § 9.25.040(E)
- Obtain historic approval before demolishing a City-Designated Historic Resource. § 9.25.040(D)
- For relocation, verify the destination parcel’s height, setback, FAR, and density compliance; post the relocation notice before the building permit. § 9.25.050(A), (C)
- Start related construction or rehabilitation within 30 days and complete it within 365 days after relocation. § 9.25.050(B)
Risks & Ambiguities
| Issue | Why it matters | What to verify |
|---|---|---|
| “Remodel” versus demolition | Labels do not control; cumulative removal beyond 50% in 5 years can be demolition. | Existing wall and structural-system calculations. § 9.25.030(A) |
| Historic Inventory status | Covered structures over 40 years old have lower 25% street-facing triggers and stricter wall-retention rules. | Historic Resources Inventory status, age, street-facing elevations, and cladding scope. § 9.25.030(A)(3) |
| Uncertain retained-wall stability | A permit may require an engineer’s certification before issuance. | Whether removal exceeds 40%, or 20% of covered street-facing wall area. § 9.25.030(C) |
| Multi-unit demolition sequencing | Demolition may be blocked until the replacement project is ready to commence. | Final replacement-project permit, maintenance plan, and removal-permit requirements. § 9.25.040(A)–(B) |
| Landmark nomination period | A timely designation application pauses demolition permitting. | Complete-application date and any owner-approved extension of the 75-day period. § 9.25.040(E) |
| Building relocation | Moving a structure still invokes demolition review and destination-site compliance. | Destination zoning standards and relocation schedule. Verify with the jurisdiction. § 9.25.050 |
| Unpermitted historic demolition | The site can face a new-development permit hold for up to 5 years. | Permit history and historic-resource status before any removal. § 9.48.050 |
Plain-English Summary
In Santa Monica, you cannot avoid demolition review by calling a major teardown a remodel or by moving the building elsewhere. If your work crosses the code’s wall- or structure-removal thresholds, especially on an older Inventory property, plan for notices, historic review, permit sequencing, and documented structural analysis before work begins. §§ 9.25.030–.050
Source References
- Santa Monica Municipal Code § 9.25.010 — purpose.
- Santa Monica Municipal Code § 9.25.020 — applicability and exemptions.
- Santa Monica Municipal Code § 9.25.030 — demolition definition, thresholds, verification, and relocation treatment.
- Santa Monica Municipal Code § 9.25.040 — demolition approval requirements and older-building review.
- Santa Monica Municipal Code § 9.25.050 — relocation standards and timing.
- Santa Monica Municipal Code §§ 9.34.020, 9.48.050, 9.58.050, 9.27.080 — related replacement, enforcement, historic-district, and nonconformity provisions.
Sources
Source passages
- CBC § 9.25.020 § 9.25.020 Medium relevance
- Santa Monica Zoning Code § 9.25.030 Medium relevance
- Santa Monica Zoning Code § 9.25.050 Medium relevance
- Santa Monica Zoning Code § 9.25.040 Medium relevance
- Santa Monica Zoning Code § 9.25.010 Medium relevance
- Santa Monica Zoning Code § 9.58.050 Medium relevance
- Santa Monica Zoning Code § 9.34.020 Medium relevance
- Santa Monica Zoning Code § 9.48.050 Medium relevance
- Santa Monica Zoning Code § 9.27.080 Medium relevance
Cited sections
- Santa Monica Municipal Code **§ 9.25.010** — purpose.
- Santa Monica Municipal Code **§ 9.25.020** — applicability and exemptions.
- Santa Monica Municipal Code **§ 9.25.030** — demolition definition, thresholds, verification, and relocation treatment.
- Santa Monica Municipal Code **§ 9.25.040** — demolition approval requirements and older-building review.
- Santa Monica Municipal Code **§ 9.25.050** — relocation standards and timing.
- Santa Monica Municipal Code **§§ 9.34.020, 9.48.050, 9.58.050, 9.27.080** — related replacement, enforcement, historic-district, and nonconformity provisions.
Frequently asked questions
What counts as demolition in Santa Monica if I am remodeling my house?
A project is demolition when more than 50% of exterior-wall elements are removed, or stop being necessary structural components, over any 5-year period. The calculation is based on the exterior-wall perimeter between the footings and each story’s ceiling, not merely on the project’s label. § 9.25.030(A)(1)
Can I move a historic house to another Santa Monica lot instead of demolishing it?
Yes, but Santa Monica treats removal for relocation as demolition. The destination site must meet its applicable height, setback, FAR, and density rules unless the Landmarks Commission approves nonconforming setbacks or orientation for a City-designated landmark or structure of merit. §§ 9.25.030(B), 9.25.050(A)
Do I need a demolition permit for a small detached garage in Santa Monica?
An accessory building under 400 square feet is exempt from Chapter 9.25 only if it is not a City-Designated Historic Resource and is not on the Historic Resources Inventory. Verify the building’s floor area and historic status with the jurisdiction before relying on that exemption. § 9.25.020(B)(1)
What extra demolition rules apply to Santa Monica buildings over 40 years old?
For a structure whose original permit is more than 40 years old, the City distributes a complete demolition application to the Landmarks Commission and allows a 75-day designation-application period. If a timely landmark, historic-district, or structure-of-merit application is filed, the demolition permit must wait for a final determination. § 9.25.040(E)
What are the demolition limits for a Santa Monica Historic Resources Inventory property?
For an Inventory structure over 40 years old, demolition can be triggered by removing more than 25% of street-facing wall area or more than 50% of all exterior walls. Comparable enclosure or window changes may also count, and remaining walls must be contiguous with existing exterior cladding retained. § 9.25.030(A)(3)
Do I need an engineer for a partial demolition in Santa Monica?
Before a building permit issues, work removing over 40% of exterior walls requires written certification by a registered structural engineer that the walls shown to remain are structurally sound. For a covered Inventory structure over 40 years old, the advance-review trigger is 20% of applicable street-facing wall area. § 9.25.030(C)
Can Santa Monica demolish a dangerous building without the normal Chapter 9.25 process?
A building may be demolished if the Building Official determines it is unsafe, a public hazard, not securable, and/or in imminent danger of collapse. That determination is governed by the most recent California Building Code in effect. § 9.25.020(B)(2)
How long do I have to finish work after relocating a building in Santa Monica?
Construction or rehabilitation related to the relocated structure must begin within 30 days after it is placed on the destination property and must be completed within 365 days. The applicant must also post a Building Officer-approved relocation notice before the building permit issues. § 9.25.050(B)–(C)
What happens after an unpermitted demolition of a Santa Monica historic resource?
The Building Official may withhold a building permit for the site when a historic resource or Inventory property was demolished or partially demolished without a required demolition permit. The City may also record an affidavit stating that no new-development permit will issue for up to 5 years. § 9.48.050
General information, not legal advice.
More in Santa Monica code
- Overview
- Density Bonus
- Subdivisions & Land Divisions
- Condominium Conversion
- Wireless Facilities
- Development Impact Fees
- Use Classifications
- Demolition & Relocation
- Reasonable Accommodation
- Zoning
- Land Use
- Development Standards
- Parking
- Design Review
- Overlay Districts
- Historic Preservation
- Signage
- Nonconforming Uses
- Variances and Exceptions
- Landscaping and Screening
- Full code text

Site Feasibility Study · $99
What could you build in Santa Monica?
See how zoning, height limits, and setbacks shape what you could build—with an annotated concept and the reasoning behind it.
One site, one project idea. Preliminary analysis and concept massing.
View $99 study →Scope confirmed before payment.
Ask about any Santa Monica property
Get a cited, plain-English answer on Santa Monica zoning, setbacks, FAR, ADUs and permits — for any address.
Ask your questionMore Santa Monica zoning topics
Santa Monica Density Bonus
Santa Monica Subdivisions & Land Divisions
Santa Monica Condominium Conversion
Santa Monica Wireless Facilities
Santa Monica Development Impact Fees
Santa Monica Use Classifications
Santa Monica Reasonable Accommodation
Santa Monica Zoning
Santa Monica Land Use
Santa Monica Development Standards
Santa Monica Parking
Santa Monica Design Review
Santa Monica Overlay Districts
Santa Monica Historic Preservation
Santa Monica Signage
Santa Monica Nonconforming Uses
Santa Monica Variances and Exceptions
Santa Monica Landscaping and Screening
Santa Monica overview
Santa Monica municipal code (full text)