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GoCodebook · Research notes

Research notes for real estate work

Three AI-assisted research drafts link legal text to facts, records, and next steps. AI source checks record supporting evidence and open issues. Property-specific conclusions require separate records.

Research by city and task

45 research questions across nine city workflow pages. 3 have answer drafts; the remaining questions show Research pending.

GoCodebook · Research note · § 1.4.2AI-assisted research note

Check the applicable zoning code before selecting design standards

Select zoning standards before designing a project.

For Architect · Builder · Inspector

Read the practical answer and checklist

Los Angeles uses two zoning codes. Check the parcel in ZIMAS before selecting design standards.

View supporting passages (3)
  • LA Planning: which zoning code applies · FAQ: transition between the two codes
    During this transition period, both the New Zoning Code and the Original Zoning Code will be in effect in different parts of the City.
  • LA Planning: which zoning code applies · FAQ: Using ZIMAS
    Utilizing ZIMAS and entering the subject property’s address, then selecting the “Planning and Zoning” drop-down and checking the “Zoning” field. Clicking on the zone will either send you to the Original Zoning Code or the New Zoning Code.
  • LA Planning: Zoning Search · Zoning Search: property records and search fields
    The online mapping system is used to look up property information, ranging from a parcel’s land use and zoning designations to its planning application and building permit history. The ZIMAS application is designed to provide zoning related information for specific properties. You can search ZIMAS by: Property Address, Street Intersection, Assessor Parcel Number, Case Number, Community Plan Area, Council District, Certified Neighborhood Council, PIN Number, Legal Description, and MapSheet.

These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

Section 1.4.2 A.2–A.4 distinguishes Chapter 1A lots from Chapter 1 lots. Article 13 applies to both codes.

View supporting passages (3)

These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

Check express Chapter 1 references and succession or vesting provisions before excluding earlier rules.

View supporting passages (3)

These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

Facts to check

  • City boundary and parcel address
  • Current zoning designation and lookup date
  • Project scope and application date

Records to collect

  • Current ZIMAS result
  • Project description and drawings
  • Relevant permit and zoning amendment records

Next step

Record the parcel's applicable code. Then review the standards for the proposed use and work.

Still to verify

  • No parcel or map result has been supplied.
  • The stored edition's effective date needs review.
Sources and review record

AI-assisted research with recorded source checks. Open questions remain. Verify current law, effective dates, and property records before a property decision.

These source checks compare the stored law text. They do not establish that no later law or agency update exists.

GoCodebook · Research note · § 37.3AI-assisted research note

Check rent increase coverage and eviction coverage separately

Check coverage before raising rent or ending a tenancy.

For Property Manager · Lawyer · Realtor

Read the practical answer and checklist

Check rent increases and eviction separately. Start with the Rent Board's separate rent-control and eviction-protection explanations.

View supporting passages (1)
  • SF Rent Board: rental laws · Some units only have eviction protection
    Some units have eviction protections, but do not have rent control protections: Units built after June 13, 1979 Most single-family homes and condos (if you moved in on or after Jan 1, 1996) Units that have undergone substantial rehabilitation Units controlled or regulated by another government unit or agency

These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

Do not use a rent increase exemption as the eviction coverage result. Review each protection and its exact exceptions.

View supporting passages (2)

These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

Check relevant California protections separately. Civil Code Sections 1946.2 and 1947.12 are related starting points.

View supporting passages (3)

These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

Facts to check

  • Unit type and certificate of occupancy date
  • Ownership and tenancy start date
  • Applicable exemptions and required notices

Records to collect

  • Certificate of occupancy and building records
  • Lease and tenancy records
  • Ownership records and exemption notices

Next step

Record two coverage results: rent increases and eviction. Cite the provision and facts for each result.

Still to verify

  • No individual unit's coverage has been determined.
  • Definitions, specific exceptions, amendments, and relevant cases need expert review.
Sources and review record

AI-assisted research with recorded source checks. Open questions remain. Verify current law, effective dates, and property records before a property decision.

These source checks compare the stored law text. They do not establish that no later law or agency update exists.

GoCodebook · Research note · § 141.0302AI-assisted research note

Check coastal applicability and permit conditions before using an ADU standard

Select the applicable ADU rules and coastal permit path.

For Architect · Builder · Inspector · Property Manager

Read the practical answer and checklist

Check whether the parcel is in the Coastal Overlay Zone. Review Section 141.0302(a)(7) before applying ADU design standards.

View supporting passages (1)

These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

Review the coastal permit path and the exemptions in Section 126.0704. A map location alone does not establish an exemption.

View supporting passages (2)
  • SD Municipal Code coastal permit procedures: official PDF · §126.0702(a)–(c), printed 12·6·7·1 · PDF page 1
    (a) Permits Issued by the City. A Coastal Development Permit issued by the City is required for all coastal development of a premises within the Coastal Overlay Zone described in Chapter 13, Article 2, Division 4, unless exempted by Section 126.0704, or if the proposed project site lies completely within the Coastal Commission Permit Jurisdiction or the Deferred Certification Area as described in Section 126.0702(b). (b) Permits Issued by the Coastal Commission. A Coastal Development Permit or exemption for all coastal development on a project site located completely within the Coastal Commission Permit Jurisdiction or in the Deferred Certification Area must be obtained from the Coastal Commission. The Coastal Commission Permit Jurisdiction and the Deferred Certification Area are shown on Map No. C-730.1, Map No. C-908, and Map No. C-1028, on file in the office of the City Clerk as Documents No. OO-17067-1, No. OO-18872, and No. OO-21719. (c) Permits Issued by the City and the Coastal Commission. A Coastal Development Permit or exemption issued by the City and the Coastal Commission are required for all coastal development on a premises located partially within the Coastal Commission permit jurisdiction. A Coastal Development Permit from each agency is required for the portion of the project within the agency’s jurisdiction.
  • SD Municipal Code coastal permit procedures: official PDF · §126.0704(a), printed 12·6·7·2; exclusions (1)–(6) follow · PDF page 2
    Improvements to existing structures are exempt, except if the improvements involve any of the following:

These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

Match each amendment to its applicable area and effective date. Bulletin 400 and the adopted update page give different status information.

View supporting passages (2)

These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

The official section editor's note identifies O-21989 and O-22109 as amendments that require coastal certification. Check the linked prior text for coastal research.

View supporting passages (1)
  • San Diego official §141.0302 and amendment history · §141.0302 editor note: O-21989 and O-22109
    Editors Note: Amendments as adopted by the following ordinances will not apply within the Coastal Overlay Zone until the California Coastal Commission certifies them as Local Coastal Program Amendments. Click the Ordinance number to view the full Strikeout Ordinance and click the Amended Section link to view the previous version of this section highlighting changes to prior language. Once the California Coastal Commission has certified the amendments, a Certified Date will be added to the relevant Ordinance note above. ( O-21989 , §141.0302 Amended (O-21989) ; O-22109 , §141.0302 Amended (O-22109) )

These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

Facts to check

  • City boundary, parcel, and Coastal Overlay Zone
  • Permit jurisdiction and coastal appeal area
  • Existing structures, proposed work, and application date
  • Amendments that affect the proposed work

Records to collect

  • Official zoning and overlay result
  • Existing and proposed drawings
  • Applicable ordinances and certified LCP amendment records
  • Recorded JADU agreement if rental use is proposed

Next step

Confirm the applicable version and coastal permit path. Then evaluate the ADU design and rental conditions.

Coastal status guidance differs

  • Bulletin 400 lists O-21618 and O-21836 among amendments awaiting coastal certification.
    View supporting passages (1)

    These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

  • The update page lists coastal dates of February 6, 2025, for the 2022 update and September 10, 2026, for the 2024 update.
    View supporting passages (2)
    • SD adopted code update status · 2024 Code Update: ordinance numbers and effective dates
      Ordinances O-21836 2024 Land Development Code Ordinance O-21837 2024 Centre City Planned District and Gaslamp Quarter Planned District Ordinance Effective Dates Outside of the Coastal Overlay Zone: October 5, 2024 Inside of the Coastal Overlay Zone: September 10, 2026
    • SD adopted code update status · 2022 Code Update: ordinance numbers and effective dates
      2022 Code Update The 2022 Code Update was adopted on March 7, 2023. City Council First Reading: Feb. 14, 2023 ( Agenda - Item 330 ) City Council Second Reading: Feb. 28, 2023 ( Agenda - Item 57 ) Code Updates Matrices 2022 LDC Update Matrix (48 Items) 2022 Centre City Planned District Ordinance Matrix (31 Items) Ordinances O-21618 2022 Land Development Code Ordinance O-21619 Centre City Planned District Ordinance O-21905 Coastal Commission Modifications to the 2022 Land Development Code Ordinance Effective Dates Outside of the Coastal Overlay Zone: May 6, 2023 Inside of the Coastal Overlay Zone: February 6, 2025

    These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

  • The official section history records coastal certification for O-21618 on February 6, 2025. It records O-21758 on March 11, 2026, and O-21836 on September 10, 2026.
    View supporting passages (3)

    These passages support the limited statement or research recommendation. They do not establish a property's eligibility. If the source opens at the top, use the quoted text to find the passage.

Use section-level history to identify certified amendments. Confirm the applicable amended text and parcel boundary before deciding the coastal rules.

Legal effect unresolved

JADU rental guidance differs

Separate former coastal language from the amended text. Check STRO rules and recorded agreements before deciding whether a rental is permitted.

Legal effect unresolved

Still to verify

  • The section-level history identifies certified amendments. Parcel location and the operative text for the proposed work still need review.
  • The official section editor's note still identifies O-21989 and O-22109 for a coastal certification check.
  • The stored section now includes the full captured source span with 3-2026 body labels. The official PDF has 9-2026 labels. Compare the official text before applying a standard.
  • No parcel-specific permit or rental decision has been made.
Sources and review record

AI-assisted research with recorded source checks. Open questions remain. Verify current law, effective dates, and property records before a property decision.

These source checks compare the stored law text. They do not establish that no later law or agency update exists.