- Origin program
- Fontana, San Bernardino County, California, USA
- Source
- Standard ADU Plans | Fontana, CA - Official Website
- Last checked
- Aug 21, 2026
- Additional notes
- Plan name and specifications are explicitly listed in the official catalog table.
Plan record
Sunflower
Sunflower is a pre-approved detached ADU plan from Tang Structural Engineers, Inc.. The public source lists it as 1,143 sq ft, 3 beds, and 2 baths. It originated in the Fontana, San Bernardino County, California, USA program. This directory currently shows acceptance in Fontana, San Bernardino County, California, USA. Source context comes from www.fontanaca.gov, last checked Aug 21, 2026. Use the linked provider, location, and source records to verify current acceptance before relying on the plan.
Source-backed summary
What public sources list
Sunflower is a pre-approved detached ADU plan from Tang Structural Engineers, Inc.. The public source lists it as 1,143 sq ft, 3 beds, and 2 baths. It originated in the Fontana, San Bernardino County, California, USA program. This directory currently shows acceptance in Fontana, San Bernardino County, California, USA. Source context comes from www.fontanaca.gov, last checked Aug 21, 2026. Use the linked provider, location, and source records to verify current acceptance before relying on the plan.
- Provider record
- Tang Structural Engineers, Inc.
- Origin program
- Fontana, San Bernardino County, California, USA
- Accepted location pages
Details
Plan facts
- Plan identifier
- Not listed in source
- Provider
- Tang Structural Engineers, Inc.
- Origin location
- Fontana, San Bernardino County, California, USA
- Accepted locations
- Status
- Pre-approved
- Size
- 1,143 sq ft
- Bedrooms
- 3 beds
- Bathrooms
- 2 baths
- ADU type
- Detached
- Construction type
- Unknown
- Plan fee
- Not listed in source
- Estimated cost
- Not listed in source
- Last checked
- Aug 21, 2026
Plan notes
Notes
- Foundation notes
- Not listed in source
- Utility notes
- Not listed in source
- Energy notes
- Not listed in source
- Accessibility notes
- Not listed in source
- Permit fee notes
- Not listed in source
- Cost notes
- Not listed in source
- Additional notes
- Plan name and specifications are explicitly listed in the official catalog table.
Source and evidence
Standard ADU Plans | Fontana, CA - Official Website
- Publisher
- www.fontanaca.gov
- Source type
- Official source
- Reliability
- Official city/county/state government source (5/5)
- Last checked
- Aug 21, 2026
- Accessed
- Aug 21, 2026
Accepted-in locations
Accepted Locations
1 accepted location