CARNATION

CARNATION is a pre-approved detached ADU plan from Tang Structural Engineers, Inc.. The public source lists it as 738 sq ft, 2 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 City of Fontana, last checked Jul 28, 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

• Fontana, San Bernardino County, California, USA

Plan identifier

Not listed in source

Provider

Tang Structural Engineers, Inc.

Origin location

Fontana, San Bernardino County, California, USA

Accepted locations

• Fontana, San Bernardino County, California, USA (Accepted)

Status

Pre-approved

Size

738 sq ft

Bedrooms

2 beds

Bathrooms

2 baths

ADU type

Detached

Construction type

Stick built

Plan fee

Not listed in source

Estimated cost

Not listed in source

Last checked

Jul 28, 2026

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

City standard plan; parcel-specific approval remains required.

Publisher

City of Fontana

Source type

Plan catalog

Reliability

Official city/county/state government source (5/5)

Last checked

Jul 28, 2026

Accessed

Jul 28, 2026