Building Code Wizard

Detached ADU — 1720 Chalcedony Street

1720 Chalcedony Street

Detached ADUActiveCheck pending
APN
Subtype
Rear yard
Proposed SF
840 sf
Permit Count
0 permits
Scope of Work
New construction
Last Updated
Updated Jan 1

Submittal Requirements

6 items

The plans and documents you must prepare and submit. Assemble these into your application package for the review disciplines to check.

  • Site plan & vicinity mapRequired
    From the code
    • Minimum submittal requirements for each ADU or JADU include the following: I. Plans / Calculations: 1. Site Plan and Vicinity Map (See Information Bulletin 122). 2. Floor Plans and Roof Plans SD Information Bulletin 400, p. 15
  • Floor planRequired
    From the code
    • Minimum submittal requirements for each ADU or JADU include the following: I. Plans / Calculations: 1. Site Plan and Vicinity Map (See Information Bulletin 122). 2. Floor Plans and Roof Plans SD Information Bulletin 400, p. 15
  • Elevations & sectionsRequired
    From the code
    • Elevations and Sections (as applicable). 4. Structural plans and details. 5. Structural calculations and/or truss calculations (as applicable). 6. Title 24 Energy calculations. II. Forms 1. General Application, DS-3032 2. Water Meter Data Card, DS-16 3. Storm Water Applicability Checklist, DS-560 Preapproved ... ADU Plans Per California Assembly Bill (AB) 1332 (Carillo 2023) (https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB1332), applicants may apply for a permit using preapproved plans. Applications that utilize preapproved plans will be subject to a 30-day review and must comply with the development regulations contained SD Information Bulletin 400, p. 16
  • Foundation & structural plansRequiredtriggered by: footprintIncrease
    Required for new construction / added footprint; includes structural calculations and/or truss calcs.
    Project adds footprint / new construction.
    From the code
    • lots that permit single-dwelling unit development but not multiple-dwelling unit development, detached ADU structures and ADUs attached to an existing accessory structure shall not exceed two stories. B. ADUs shall comply with the overall maximum structure height of the underlying base zone ... overlay zone. ADU Setback Regulations A. Conversions or Interior Alterations of Existing Structures Where an existing structure is converted to an ADU, the ADU may continue to observe the setbacks of the existing structure. B. Demolition and Reconstruction of Existing Structures Where an existing structure SD Information Bulletin 400, p. 5
    • Elevations and Sections (as applicable). 4. Structural plans and details. 5. Structural calculations and/or truss calculations (as applicable). 6. Title 24 Energy calculations. II. Forms 1. General Application, DS-3032 2. Water Meter Data Card, DS-16 3. Storm Water Applicability Checklist, DS-560 Preapproved ... ADU Plans Per California Assembly Bill (AB) 1332 (Carillo 2023) (https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB1332), applicants may apply for a permit using preapproved plans. Applications that utilize preapproved plans will be subject to a 30-day review and must comply with the development regulations contained SD Information Bulletin 400, p. 16
  • Title 24 energy complianceRequiredtriggered by: footprintIncrease
    New conditioned space requires Title 24 energy documentation; CALGreen and City reach-code (solar/electrification) provisions may also apply — verify current reach code.
    New conditioned space.
    2022 California Energy Code (Title 24 Pt 6) / CALGreen
  • Deferred submittals (typical)Required
    Roof trusses, fire-sprinkler design (if required), solar PV, and MEP shop drawings are commonly approved as deferred submittals after permit issuance.
    From the code
    • lots that permit single-dwelling unit development but not multiple-dwelling unit development, detached ADU structures and ADUs attached to an existing accessory structure shall not exceed two stories. B. ADUs shall comply with the overall maximum structure height of the underlying base zone ... overlay zone. ADU Setback Regulations A. Conversions or Interior Alterations of Existing Structures Where an existing structure is converted to an ADU, the ADU may continue to observe the setbacks of the existing structure. B. Demolition and Reconstruction of Existing Structures Where an existing structure SD Information Bulletin 400, p. 5
    • with environmentally sensitive lands is based on the allowable development area. The interior side yard and rear side yard setbacks for ADU structures over 16 feet in height that are adjacent to a residential use may use the base zone regulations if they are less ... than the ADU minimum 4-foot setback. C. 2025 ADU and JADU Regulation Amendments (O-21989) Adjustments to the ADU Home Density Bonus Program. Alignment with state law. Accessory Dwelling Unit (ADU) What is an ADU? An Accessory Dwelling Unit (ADU) is an attached SD Information Bulletin 400, p. 2

Deterministic, source-cited — each item links its governing document. Items marked “Verify” depend on data not yet captured (lot geometry, construction valuation); confirm with DSD. First-iteration ruleset manifest-2026.06.08-v1.