Detached ADU — 9526 Babauta Rd, San Diego CA 92129

9526 Babauta Rd, San Diego CA 92129

Detached ADUActiveRS-1-11

APN

3155610400

Subtype

Rear yard

Proposed SF

800 sf

Permit Count

0 permits

Scope of Work

New construction

Last Updated

Updated Jan 1

Permit Requirements Review Disciplines Submittal Requirements Permit History Permit Timeline Legalization Report

What Permit Timeline requires

Permits & approvals required

Building Permit (Combination)Required
A combination building permit covers structural, electrical, plumbing, and mechanical work for the ADU.
City of San Diego Information Bulletin 400 — ADU/JADU Submittal SDMC §141.0302 (ADU/JADU regulations)
From the code
- Application Process and Requirements Building Permit Requirement A Building Permit is required to create an ADU or JADU. There are no exemptions. Depending upon the number of dwelling units created by the ADU(s), either a Combination Building Permit or a Building Permit will — SD Information Bulletin 400, p. 15
Ministerial ADU/JADU reviewRequired
ADUs/JADUs that meet state standards are approved ministerially (no public hearing or discretionary findings).
Cal. Gov. Code §66314 (ADU standards)SDMC §141.0302 (ADU/JADU regulations)
From the code
- Code Chapter 14: General Regulations (3-2026) (11) The record owner is not required to live on the same premises of an ADU. (c) Development Regulations for JADUs. (1) On a premises with an existing or proposed single dwelling unit, one JADU is permitted, subject ... following: (A) The JADU shall be within an existing or proposed single dwelling unit or attached garage; (B) Construction of the JADU may expand the floor area of the existing single dwelling unit up to 150 square feet to only allow for ingress and egress — SDMC §141.0302, p. 8
- Diego Municipal Code Chapter 14: General Regulations (3-2026) (8) ADU Home Density Bonus Agreement. The affordable ADUs shall be guaranteed through a written agreement and a deed of trust securing the agreement, entered into by the applicant and President and Chief Executive Officer ... Diego Housing Commission, or their designee, prior to the issuance of a Building Permit for the first affordable ADU or bonus ADU, whichever occurs first, that meets the following requirements: (A) A rental affordable ADU home density bonus agreement shall utilize the following qualifying criteria — SDMC §141.0302, p. 13
Site Development Permit (Environmentally Sensitive Lands)Conditionaltriggered by: esl, steepSlopes, sensitiveHabitat, flood
ESL (steep slopes, sensitive habitat, wetlands, floodplain) generally requires a Site Development Permit with discretionary findings.
Parcel intersects environmentally sensitive lands.
SDMC §143.01 (Environmentally Sensitive Lands)
Historical resources reviewConditionaltriggered by: historicCultural
Historic-district location or a primary structure 45+ years old can trigger historical-resources review before approval.
Historic overlay and/or primary structure age ≥ 45 years.
SDMC §143.0212 / DSD Historical Resources review

Review disciplines

No separate review discipline specific to this section.

Submittal requirements

No submittal specific to this section for this project.

Process & sequencing

Address assignmentRequired
A new detached/attached unit needs an assigned (sub-)address before final inspection.
City of San Diego — Addressing / GIS
SB9 lot split / two-unit (NOT evaluated)Not evaluated
This manifest evaluates ADU/JADU paths only. SB9 urban lot splits and two-unit projects are a separate path and are not assessed here.

Reference documents

Applicable documents — Permits / Permit Timeline · 13 · click to expand

Rank	Topics Covered	Section Citation
1	SD Information Bulletin 400advisory City of San Diego Information Bulletin 400 — Accessory Dwelling Unit / Junior ADU Permit application, Ministerial review	SD Information Bulletin 400
2	CA HCD ADU Handbook 2024advisory California Department of Housing and Community Development — ADU Handbook 2024 ADU overview, JADU overview, Ministerial review	CA HCD ADU Handbook 2024
3	SD Information Bulletin 100advisory City of San Diego Information Bulletin 100 — Estimated Due Dates for Building Permits Review timeline	SD Information Bulletin 100
4	SD Information Bulletin 140advisory City of San Diego Information Bulletin 140 — Residential Addition / Remodel Additions, Remodels, Submittal requirements	SD Information Bulletin 140
5	SD Information Bulletin 153advisory City of San Diego Information Bulletin 153 — Building Permit Issuance Permit issuance	SD Information Bulletin 153
6	SD Information Bulletin 188advisory City of San Diego Information Bulletin 188 — Deferred Submittals Deferred submittals	SD Information Bulletin 188
7	SD Information Bulletin 250advisory City of San Diego Information Bulletin 250 — How to Apply for a Change of Record Change of record	SD Information Bulletin 250
8	SD Information Bulletin 353advisory City of San Diego Information Bulletin 353 — Grading & Right-of-Way Permit Issuance Right-of-way, Site grading	SD Information Bulletin 353
9	SD Information Bulletin 500advisory City of San Diego Information Bulletin 500 — Substantial Conformance Review Conformance review	SD Information Bulletin 500
10	SD Information Bulletin 513advisory City of San Diego Information Bulletin 513 — Preliminary Review Preliminary review	SD Information Bulletin 513
11	SD Information Bulletin 710advisory City of San Diego Information Bulletin 710 — Procedures for Building Demolition / Removal Demolition	SD Information Bulletin 710
12	BIA-SD ADU Design Checklist v3advisory Building Industry Association of San Diego — ADU Design Checklist v3 ADU overview, Permit application, Ministerial review	BIA-SD ADU Design Checklist v3
13	SDMC Ch.14 Art.1 Div.1 — General Rules for Separately Regulated Usesmandatory San Diego Municipal Code Ch.14 Art.1 Div.1 — General Rules for Separately Regulated Uses Land Development, San Diego Municipal Code	SDMC Ch.14 Art.1 Div.1 — General Rules for Separately Regulated Uses

Reference tables (21)

SINGLE DWELLING UNITS/DUPLEX/TOWNHOME

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Short	Medium	Long
Section
Accessory structure additions (e.g., decks, stairs, fences, fireplaces, equipment anchorage on grade, equipment enclosure)	Any project with a prior discretionary permit	Alterations or addition >7,000 sf
Alterations/additions < 3,000 sf with no increase in density	Alteration/addition 3,000-7,000 sf	New > 7,000 sf
Foundation repair except piles/caissons	Foundation repair using piles/caissons
Retaining walls < 10 ft	Retaining walls greater than 10 ft
Swimming pool	Shoring walls
	New up to 7,000 sf

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All Other Building Permits

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Short	Medium	Long	Complex
Accessory structure additions	Projects with a prior discretionary permit	Church >10,000 sf	Hotel/motel (new) > 5 stories
Alteration/Addition to an individual dwelling unit	Additions	Hotel/motel < 5 stories	Multiple Dwelling Units >100 units
Change of occupancy other than to A or H occupancy type	Antennas	Non-residential TIs > 50,000 sf	Multi-plex theaters/auditoriums
Commercial coaches	Change of occupancy to A or H	Non-residential building more than 2 stories but less than 5 stories	Non-residential building 5 stories or more
Foundation repair except piles/caissons	Church <10,000 sf	Restaurants/bars/club > 10,000 sf	Parking structure > 5 stories and 100,000 sf
Paint spray booth	Foundation repair using piles/caissons	School >10,000 sf	Shopping malls
Parking lots only	MDU < 20 units	Seismic retrofit > 4 stories	Mixed-use buildings > 3 stories
Retaining wall < 10 ft	Non-residential building < 2 stories < 20,000 sf	Multiple Dwelling Units with 20-100 units
Signs	Parking structure < 3 stories	New buildings 7 or more stories above grade level
Storefront alteration	Restaurant/bar/club up to 10,000 sf	Parking structure <5 stories and 100,000 sf
TIs/ Alterations up to 10,000 sf (except for restaurants/bars/clubs or with hazmat)	Retaining wall >10 ft
	School < 10,000 sf
	Seismic retrofit < 4 stories
	Storage racks
	Shoring walls
	Swimming pools
	TIs/Alterations < 10,000 sf for restaurants/bars or with hazmat
	TIs 10,000-50,000 sf

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Short Medium Long Final Version

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Short		Medium		Long		Final Version
First Review	Recheck	First Review	Recheck	First Review	Recheck	5
8	6	10	6	15	6

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Review Times

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Short First Review	Recheck	Medium First Review	Recheck	Long First Review	Recheck	Complex* First Review	Recheck	Final Version
10	6	20	10	40	20	60	30	5

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Review Time

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Short First Review	Short Recheck	Medium First Review	Medium Recheck	Long First Review	Long Recheck	Complex* First Review	Complex* Recheck	Final Version
8	6	15	8	30	15	60	30	5

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Short Medium Long Complex* Final Version

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Short	Short	Medium	Medium	Long	Long	Complex*	Complex*	Final Version
First Review	Recheck	First Review	Recheck	First Review	Recheck	First Review	Recheck	5
6	6	10	6	20	10	30	15

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Table 1 — Allowable Spans for DF #2 Roof Rafters (DF-Larch)

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Dead Load: up to 10/20 (Shingles/Tiles) psf Total (incl. roofing); Live Load: 20 psf; L/Δ = 240; (T-R802.4.1(2))

Rafter Size	Spacing	Allowable Span (Shingles / Tiles)
2X6	24"	11'-11" / 10'-4"
2X6	16"	14'-1" / 12'-7"
2X6	12"	15'-6" / 14'-7"
2X8	24"	15'-1" / 13'-0"
2X8	16"	18'-5" / 16'-0"
2X8	12"	20'-5" / 18'-5"
2X10	24"	18'-5" / 15'-11"
2X10	16"	22'-6" / 19'-6"
2X10	12"	26'-0" / 22'-6"
2X12	24"	21'-4" / 18'-6"
2X12	16"	26'-0" / 22'-7"
2X12	12"	26'-0" / 26'-0"

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Table 2 — Allowable Spans for DF #2 Ceiling Joist (DF-Larch)

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Dead Load: 10 psf; Live Load: 20 psf (Light Storage); L/Δ = 240; (T-R802.5.1(2))

Joist Size	Spacing	Allowable Span
2X4	24"	7'-3"
2X4	16"	8'-11"
2X4	12"	9'-10"
2X6	24"	10'-8"
2X6	16"	13'-0"
2X6	12"	15'-0"
2X8	24"	13'-6"
2X8	16"	16'-6"
2X8	12"	19'-1"
2X10	24"	16'-5"
2X10	16"	20'-2"
2X10	12"	23'-3"

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Table 3 — Allowable Spans for DF #2 Floor Joist (DF-Larch)

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Dead Load: 10 psf; Live Load: Floor 40 psf; L/Δ = 360; (T-R502.3.1(2))

Joist Size	Spacing	Allowable Span
2X6	24"	8'-3"
2X6	16"	9'-9"
2X6	12"	10'-9"
2X8	24"	10'-5"
2X8	16"	12'-9"
2X8	12"	14'-2"
2X10	24"	12'-9"
2X10	16"	15'-7"
2X10	12"	18'-0"
2X12	24"	14'-9"
2X12	16"	18'-1"
2X12	12"	20'-11"

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Table 4 — Allowable Spans (Braced/Unbraced) for DF #2 Roof Beams & Headers, Exterior & Interior Bearing Walls (DF-Larch)

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Max. Dead Load: 20 psf; Max Live Load: 20 psf; (T-R 602.7(1))

Size	12-ft Bldg Width	NT	24-ft Bldg Width	NT	36-ft Bldg Width	NT
2-2x6	6'-0"/4'-3"	1	4'-7"/3'-2"	1	3'-10"/2'-8"	1
2-2x8	7'-7"/5'-4"	1	5'-9"/4'-0"	2	4'-10"/3'-4"	2
2-2x10	9'-0"/6'-9"	1	6'-10"/4'-9"	2	5'-9"/4'-4"	2
2-2x12	10'-7"/7'-5"	2	8'-1"/5'-8"	2	6'-10"/4'-9"	2
3-2x8	9'-5"/6'-7"	1	7'-3"/5'-1"	1	6'-1"/4'-3"	2
3-2x10	11'-3"/7'-10"	2	8'-7"/6'-2"	2	7'-3"/5'-1"	2
3-2x12	13'-2"/9'-3"	2	10'-8"/7'-1"	2	8'-6"/6'-0"	2
4-2x8	10'-11"/7'-8"	2	8'-4"/5'-10"	2	7'-0"/5'-0"	2
4-2x10	12'-11"/9'-0"	2	9'-11"/7'-0"	2	8'-4"/5'-10"	2
4-2x12	15'-3"/10'-8"	2	11'-8"/8'-2"	2	9'-10"/6'-9"	2

a. Building width is perpendicular to ridge measured to exterior walls.

b. NT – Number of trimmer studs required to support each end of header.

d. Allowable span of braced beam / Allowable span of unbraced beam.

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Table 5 — Cantilever Spans for Floor Joists

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Max. deck dead load 10 psf; Live load 40 psf

Size (DF-Larch #2)	Spacing	Cantilever Span	Uplift Force (lbs)
2x8	12"	34"	165
2x8	16"	29"	180
2x10	12"	49"	201
2x10	16"	42"	220
2x10	24"	34"	255
2x12	16"	57"	268
2x12	24"	47"	330

a. Ratio of backspan to cantilever span shall be not less than 2:1.

b. A full-depth floor joist shall be provided at the cantilevered ends. Solid blocking shall be provided between joists over the support.

c. Connection angle capable of resisting the indicated uplift force shall be provided at the backspan support.

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Table 6 — Rafter Heel Connection to Ceiling Joist

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Roof Live Load 20 psf [Table R802.5.2(1)]; Minimum number of 16d common nails

Rafter Slope	Tie Spacing (in)	Roof Span 12 ft	Roof Span 20 ft	Roof Span 28 ft	Roof Span 36 ft
3:12	16	5	8	10	13
3:12	24	7	11	15	19
4:12	16	4	6	8	10
4:12	24	5	8	12	15
5:12	16	3	5	6	8
5:12	24	4	7	9	12

Roof span is measured between exterior walls.

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Table 7 — Allowable Spans & Loads for Wood Structural Panel (Floor & Roof Sheathing)

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Sheathing Grade STRUCT-1; continuous over two or more spans; strength axis perpendicular to supports; applies to panels 24" or wider; (T-R503.2.1.1(1))

Panel Span Rating (Roof/Floor)	Min Panel Thickness (in)	Roof Max Span — Edge Support	Roof Max Span — No Edge Support	Roof Total Load (psf)	Roof Live Load (psf)	Floor Max Span (in, T&G/blocking)
24/0	3/8	24	20	40	30
24/16	7/16	24	24	50	40	16
32/16	15/32, 1/2	32	28	40	30	16
40/20	19/32, 5/8	40	32	40	30	20
48/24	23/32, 3/4	48	36	45	35	24

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Table 8 — Nailing Schedule

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(T-R602.3(1))

Connection	Fastening	Remarks
Roof
Blocking between joists or rafters to top plate	3-8d (2-1/2" x 0.113")	Toe nail
Ceiling joist to plate	3-8d (2-1/2" x 0.113")	Toe nail
Ceiling joist not attached to parallel rafter, laps over partitions	4-10d (3" x 0.128")	Toe nail
Collar tie rafter, face nail or 20-gage ridge strap	3-10d (3" x 0.128")	Face nail
Rafter to plate	2-16d (3-1/2" x 0.135")	Toe nail
Roof rafters to ridge, valley or hip rafters	4-16d (3-1/2" x 0.135") / 3-16d (3-1/2" x 0.135")	Toe nail / End nail
Wall
Built-up corner studs	10d (3" x 0.128")	16" o.c.
Built-up header two pieces with ½" spacer	16d (3.5" x 0.162")	16" o.c. along each edge
Continued header two pieces	16d (3.5" x 0.162")	16" o.c. along each edge
Continuous header to stud	4-8d (2-1/2" x 0.113")	Toe nail
Double studs	16d (3.5" x 0.128")	12" o.c.
Double top plates	10d (3" x 0.128")	12" o.c. Face nail
Double top plates, minimum 24-inch offset of end joints, face nail in lapped area	8-16d (3-1/2" x 0.135")	Face nail
Sole plate to joist or blocking	16d (3-1/2" x 0.135")	12" o.c. Face nail
Sole plate to joist or blocking at braced wall panels	3-16d (3-1/2" x 0.135")	12" o.c. Face nail
Stud to sole plate	4-8d (2-1/2" x 0.113") or 3-16d (3-1/2" x 0.135")	Toe nail
Top or sole plate to stud	3-16d (3-1/2" x 0.135")	End nail
Top plates, lap at corners and intersections	3-10d (3" x 0.128")	Face nail
Floor
Joist to sill or girder	4-8d (2-1/2" x 0.113")	Toe nail
Rim joist to top plate (roof application also)	8d (2-1/2" x 0.131")	6" o.c. Toe nail
Built-up girders and beams, 2-inch lumber layers	10d (3" x 0.128")	Nail each layer: 24" o.c. at top and bottom, staggered; two nails at ends and at each splice
Ledger strip supporting joists or rafters	4-16d (3-1/2" x 0.135")	At each joist or rafter

1. When nails are clinched, nailing may be reduced by 25 percent.

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Table 9 — Title 24 Energy Requirements (Prescriptive) for Climate Zone 7 & 10

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Prescriptive energy requirements (Climate Zones 7 & 10)

Component	Climate Zone	Requirement
Insulation — Ceiling	Climate Zone 7	R-30
Insulation — Ceiling	Climate Zone 10	R-38 (Option B), R-30 (Option C)
Insulation — Wall	Climate Zone 7 & 10	R-13 + R8 Cont.
Insulation — Floor	Climate Zone 7 & 10	R-19
Insulation — Roof	Climate Zone 7 & 10	Radiant barrier required in new roof
Fenestration — Type		Dual Pane
Fenestration — Maximum Sq.Ft.	20% of FA* total	UF 0.30 or lower
Fenestration — 5% West Facing		SHGC 0.23 or lower
Doors — No Glazing		UF 0.20 or lower
Doors — Glazing Door		Treated as fenestration

1. All buildings shall comply with the Quality Insulation Installation (QII) requirements in Table 150.1-A or B.

2. The area of any glass removed, as a direct result of the room addition, may be added to the 20% (*FA = floor area).

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Deferred Submittal Item

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Deferred Submittal Item	Building Type
1. Building exterior envelope (i.e. storefronts, exterior cladding, curtain walls, windows)	Commercial and multi-family residential buildings
2. Elevator support rail	Commercial and multi-family residential buildings
3. Fire alarm system	All building types
4. Fire sprinkler system	All building types
5. Guards	Commercial and multi-family residential buildings
6. Metal stairs (structural frame, handrails, guards)	Commercial and multi-family residential buildings
7. Precast concrete vault	Commercial and multi-family residential buildings
8. Raised floor system	Commercial and multi-family residential buildings
9. Skylights (custom designed and pre-manufactured)	Commercial and multi-family residential buildings
10. Trusses (floor, roof)¹	All building types
11. Walk-in cooler (pre-manufactured)	Commercial buildings
12. Window washing equipment - Suspension support system	Commercial and multi-family residential buildings
13. Window washing equipment anchorage	Commercial and multi-family residential buildings
14. Solar photovoltaic system²	All building types
15. Electrical Vehicle Charging Stations	All building types

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Preliminary Review Fees — Single Discipline

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Item	Fee
Single Discipline Review Flat Fee	$1,588.73
Mapping Fee	$12.16
DSD Staff Time, Hourly	$88.29 for the first half hour and $17.71 for every six minutes thereafter, with a minimum half-hour charge

Mapping Fee is charged when plans, drawings, maps or other geographical documents are utilized for project review.

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Preliminary Review Fees — Multiple Discipline

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Item	Fee
Multiple Discipline Review Flat Fee	$12,983.99
Mapping Fee	$12.16
DSD Staff Time, Hourly	$88.29 for the first half hour and $17.71 for every six minutes thereafter, with a minimum half-hour charge
Planning Department Review — Public Spaces Planning	$196.75
Planning Department Review — Community Planning	$198.16
Planning Department Review — Heritage Preservation Planning	$177.66
Planning Department Review — Biodiverse SD Planning	$201.66

Preliminary Review fees do not include the Planning Department. If a review from the City Planning Department disciplines is requested, these hourly fees will be added to the project.

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Demolition / Removal — Submittal Requirements

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R = Required; - = Not required. Superscripts 1-5 reference footnotes in the bulletin.

Submittal Item	Required at Submittal	Required at Issuance	Building — Residential	Building — Non-Residential	Pool ≤5' Deep — Residential	Pool ≤5' Deep — Non-Residential	Pool >5' Deep — Residential	Pool >5' Deep — Non-Residential
Application Package	R	-	R	R	R	R	R	R
Historical Resource Information	R	-	R	R	R	R	R	R
Waste Management Form	-	R	R⁴	R⁴	-	-	-	-
SD Regional Hazardous Materials Questionnaire	-	R	R¹	R	R¹	R	R¹	R
SDG&E Certification of Discontinuance	-	R	R	R	-	-	-	-
Site Plan	R	-	R²	R²	R²	R²	R²	R²
Soils Compaction Report⁵	R	-	-	-	-	-	R	R
Storm Water Submittal Requirements	R	-	R³	R³	-	-	-	-

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Demolition / Removal — Historic Condition Requirements

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Condition	Building Record	Photos	Site Plan
All structures are less than 45 years old	R¹	-	-
Any structure is 45 years old	See Information Bulletin 580 for Supplemental Requirements
Designated Historic Resource or within a Historic District	See Information Bulletin 581 for Supplemental Requirements

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Demolition / Removal — Permit Fees

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Item	Fee
Demolition/Removal Permit Plan Check Fee	$360.36
Demolition/Removal Permit Inspection Fee	$332.48
City Planning Department - Historic Review	$177.66/hour (if applicable)
DSD - Engineering Review	$176.84/hour (if applicable)

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