Thousand Oaks, CA Historic Preservation: Historic-Cultural Monuments (2026)
Key Facts
- Permit required before alteration
- Certificate of Appropriateness from the City Council
- Council review window
- 90 days from filing to review and set a hearing (§1-9.206(b))
- If denied
- 180-day bar on the proposed work (§1-9.206(b))
- Who evaluates significance
- Ventura County Cultural Heritage Board (§1-9.205)
Summary
Once a structure, site, or natural formation in Thousand Oaks is designated a landmark or point of historic interest, the owner is barred from demolishing, altering, relocating, or removing the designated feature without first getting a Certificate of Appropriateness from the City Council. If the Council turns down that request, the owner is locked out from trying again, or from doing the work anyway, for 180 days.
(a) Designation and prohibition on alteration. A property owner or tenant is prohibited from defacing, demolishing, adding to, altering, relocating or removing the specified portion of any structure, land formation or other item that is designated a landmark or point of historic interest, except as provided in this article. (b) Landmark alteration; Certificate of appropriateness. If a property owner desires to demolish, add to, alter, relocate or remove the specified portion of any structure, land formation or other item that is designated a landmark or point of historic interest, he or she must apply to the City for a Certificate of Appropriateness... Upon a filing of a request for a Certificate, the City Council shall have ninety (90) days from the date of filing for review of the application and to set a noticed public hearing on the matter. If the request for a Certificate is disapproved by the City Council, the property owner shall be prohibited from demolishing, adding to, altering, relocating or removing the specified portion of the structure or land formation... for one hundred eighty (180) days from the date of the Council's disapproval action.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-78: 2026 S-78 Supplement contains: Current city legislation passed through March 31, 2026).
Full Breakdown
Designation as a landmark or point of historic interest happens through the Thousand Oaks Cultural Heritage Board process, which relies on the Ventura County Cultural Heritage Board to evaluate a site's historic, architectural, or cultural significance before the City Council can ratify it. Once designated, any exterior alteration, addition, demolition, or relocation of the protected feature requires a Certificate of Appropriateness. The City Council has 90 days from the date an owner files for a Certificate to review the application and schedule a public hearing. Any other City permit for the same parcel is put on hold pending that Certificate review. If the Council disapproves the Certificate, the owner cannot demolish, alter, relocate, or remove the designated feature, or any marker identifying it, for 180 days following the denial.
Violations & Fines
The code frames this as a flat prohibition rather than a fine schedule: a property owner or tenant is "prohibited" from altering a designated landmark without an approved Certificate of Appropriateness, and a denied application triggers an automatic 180-day bar on the work. General code-violation penalties under Sec. 1-2.01/1-2.03 (infraction fines or a misdemeanor with up to a $1,000 fine and/or 6 months in jail) would apply to unauthorized alteration or demolition carried out in defiance of the prohibition.
Frequently Asked Questions
Can I demolish a building on my property that's designated a historic landmark?
What happens if the City Council denies my Certificate of Appropriateness request?
Sources & Official References
Other rules in Thousand Oaks
California rules heatmap·Compare Thousand Oaks to another location·View the California historic preservation overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.
Historic-Cultural Monuments in Nearby Cities
How other cities in Ventura County handle historic-cultural monuments.