STR Cost Segregation in San Diego, CA
San Diego STR cost segregation: stro categories and room-versus-whole-home use. Review local resources, study records, and a property-specific planning example.
STRO categories and room-versus-whole-home use
San Diego’s STRO page distinguishes several hosting categories, including home sharing and whole-home use. Match the licensing and use facts to the particular unit before making a study request; other San Diego County cities have their own jurisdictional context. San Diego short-term residential occupancy program.
Define the property study
For a home-sharing arrangement, identify guest-only rooms, shared living areas, and owner-only space. For a whole-home rental, reconcile any personal-use periods and later changes in operation. The component inventory should describe dedicated rental furnishings separately from shared building assets. An operating category informs the fact file but does not determine federal depreciation treatment by itself.
Records that resolve the main questions
- Applicable STRO category and unit identifier
- Guest/owner use map and rental calendar
- Dedicated furnishing receipts plus shared-improvement scopes
A scoping example
A homeowner rents rooms for part of the year and later offers the entire home while away. Keep a dated operating timeline and identify any furnishings added for the changed use. Do not assume that one year-end photograph accurately describes rental use throughout the year.
Does an STRO tier settle the federal tax classification?
No. City licensing and federal tax rules answer different questions. Provide the operating facts and use history so the preparer can evaluate the appropriate tax treatment separately.
Prepare for a Stratum study
Stratum provides nationwide property-study services, with discovery calls through AE Tax Advisors. Confirm the engagement scope, fee, evidence requirements, and CPA handoff. A service-area page does not represent a local office. Local operating approval and federal depreciation are separate questions.
- Build your document checklist
- An STR Renovation Timeline for Your Cost Segregation File
- Understand the STR study service
- Compare cost segregation companies
Related service areas
San Diego rental owners: retain county records and two tax schedules
San Diego County’s Assessor/Recorder/County Clerk provides property information and official-record resources. Keep those records with purchase and improvement evidence. Separately, the California Franchise Tax Board’s 2025 Form 3885A instructions identify federal and California depreciation differences. Ask the preparer to check the applicable year and entity and retain state adjustments; do not apply a federal calculator result as the California benefit.
Official reference checked October 25, 2026: San Diego County Assessor/Recorder/County Clerk. California FTB depreciation adjustment instructions
Prepare your property records · Plan the federal and state handoff