Del Mar Municipal Code Div. 1 Building Code

There is adopted and incorporated by reference herein as the City Building Code for the purpose of prescribing regulations in the City of Del Mar for the erection, construction, enlargement, alteration, repair, moving, removal, conversion, demolition, occupancy, equipment, use, height, area, and maintenance of buildings and structures, the 2025 California Building Code, Part 2, Title 24 of the California Code of Regulations, a portion of the California Building Standards Code, as defined in the California State Health and Safety Code, Section 18902 et seq. based on the International Building Code, 2024 Edition. Except as otherwise provided by this Chapter or any other section of the City of Del Mar Municipal Code, all erection, construction, enlargement, alteration, repair, moving, removal, conversion, demolition, occupancy, equipment, use, height, area and maintenance of buildings and structures within the City of Del Mar shall be in conformance with the 2025 California Building Code and the adopted Appendix Chapters, published by the California Building Standards Commission.

(Ord. No. 922, § 3, 11-21-2016; Ord. No. 957, § 1, 11-18-2019; Ord. No. 994, § 2, 10-17-2022, eff. 1-1-2023; Ord. No. 1022, § 1, 9-22-2025, eff. 10-22-2025)

Editor's note— Ord. No. 922, § 3, adopted November 21, 2016, repealed the former Sections 23.12.010, 23.12.012, 23.12.014, 23.12.016, 23.12.018, 23.12.020, 23.12.030, 23.12.032, 23.12.040, 23.12.042, 23.12.050, 23.12.060, 23.12.062, 23.12.063, and 23.12.070 in their entirety, and enacted new Sections 23.12.010, 23.12.011, 23.12.012, 23.12.014, 23.12.018, 23.12.020, 23.12.030, 23.12.040, 23.12.050, 23.12.060—23.12.065, and 23.12.070 to read as herein set out. The former provisions pertained to various codes for construction, and derived from Ord. No. 412; Ord. No. 632; Ord. No. 678; Ord. No. 763; Ord. No. 775; Ord. No. 800; Ord. No. 808; Ord. No. 853, and Ord. No. 890.

Section 101.1 Title shall be amended as follows, "These regulations shall be known as the Building Code of the City of Del Mar, hereinafter referred to as "this code.""

(Ord. No. 922, § 3, 11-21-2016; Ord. No. 1022, § 2, 9-22-2025, eff. 10-22-2025)

Note— See editor's note at Section 23.12.010.

Local amendments to Section 105.1 (Required) to require permits for repaving and restriping by adding the following statement at the end of Section 105.1 - Required:

"A building permit is required for repaving and/or re-striping of all parking lots serving commercial, office, multi-family and hotel buildings and structures. Re-striping shall meet the current edition of the CBC."

(Ord. No. 994, § 2, 10-17-2022, eff. 1-1-2023; Ord. No. 1022, § 3, 9-22-2025, eff. 10-22-2025)

Local amendments to Section 105.2 (Work exempt from a Building Permit) are as follows:

1. Modifies California Building Code Section 105.2 - 1. as follows: One-story detached accessory structures used as tool and storage sheds, playhouses and similar uses, provided that the floor area does not exceed than 48 square feet (4.46 square meters). It is permissible that these structures still be regulated by Part 7 California Wildland-Urban Interface Code, despite exemption from permit.

2. Modifies California Building Code Section 105.2 - 2. as follows: Fences not over 12 inches (305 mm) high.

3. Modifies California Building Code Section 105.2 - 4. as follows: Retaining walls that are not over 12 inches (305 mm) in height measured from the bottom of the footing to the top of the wall, unless supporting a surcharge or impounding Class I, II or IIIA liquids.

4. Modifies California Building Code Section 105.2 - 6. by adding the following exemption at the end of item 6: "Sidewalks and driveways not more than 30 inches in the rear yard, and 18 inches in the side yard, above adjacent grade, and not over any basement or story below and are not part of an accessible route. This exception applies only to structures accessory to a single-family dwelling (Group R, Division 3 Occupancy)."

Unless otherwise exempted by this code, separate plumbing, electrical and mechanical permits will be required for the above exempted items.

(Ord. No. 922, § 3, 11-21-2016; Ord. No. 957, § 2, 11-18-2019; Ord. No. 994, § 3, 10-17-2022, eff. 1-1-2023; Ord. No. 1022, § 4, 9-22-2025, eff. 10-22-2025)

Editor's note— Ord. No. 994, § 2, adopted Oct. 17, 2022, added a new Section 23.12.012 and subsequently renumbered the former Section 23.12.012 as § 23.12.013. Historical notations have been retained for referece purposes.

Note— See editor's note at Section 23.12.010.

Local amendments to Section 1505.1 (General) and Table 1505.1 (Minimum Roof Assembly Classification for Types of Construction) are as follows:

1505.1 General. Fire classification of roof assemblies shall be in accordance with Section 1505. The minimum fire classification of roof assemblies installed on buildings shall comply with Table 1505.1 based on type of construction of the building. Class A roof assemblies and roof coverings required to be listed by this section shall be tested in accordance with ASTM E108 or UL 790.

No wood shake or shingle products are permitted to be installed on the roof of any Occupancy Group.

Class A Roof-Covering shall not be required for roof repair where the proposed improvements are at or below 10% of the total roof area. This exemption shall be allowed for only one repair of 10% or less. Subsequent roof repairs shall be required to meet the standards set forth in Section 1503 of the California Building Code.

For re-roofing of existing residential buildings, the Class A Roofing Assembly may be limited to the part of the assembly specified from the sheathing upward, provided the existing sheathing is solid with a minimum thickness of 3/8". Where spaced sheathing currently exists, it shall be replaced or covered with sheathing of a thickness required for a Class A assembly.

Roofing shall be secured or fastened to support the roof construction and shall provide weather protection for the building at the roof.

TABLE 1505.1 MINIMUM ROOF ASSEMBLY CLASSIFICATION FOR TYPE OF CONSTRUCTION

Local amendments to Section 1505.1.2 (Roof coverings within all other areas other than Fire Hazard Severity Zones or a Wildland-Urban Interface (WUI)) are as follows:

1505.1.2 Roof coverings within all other areas other than Fire Hazard Severity Zones or a Wildland-Urban Interface (WUI). The entire roof covering of every existing structure where more than 10 percent of the total roof area is replaced within any one-year period, the entire roof covering of every new structure, and any roof covering applied in the alteration, repair or replacement of the roof of every existing structure, shall be a fire-retardant roof covering that is at least Class A fire classification.

(Ord. No. 922, § 3, 11-21-2016; Ord. No. 957, § 3, 11-18-2019; Ord. No. 1022, § 5, 9-22-2025, eff. 10-22-2025)

Note— See editor's note at Section 23.12.010.