San Diego Zoning & Permits
Zoning rules, permit requirements, and building codes for San Diego, CA. Source-cited from official municipal code.
Quick Facts
Population
1,386,932
Total Zone Types
48
Planning Department
San Diego Planning Department
Zoning Map
Interactive online map
County
San Diego County
Metro Area
San Diego-Chula Vista-Carlsbad
San Diego Zoning System
The San Diego zoning system includes 48 total zone classifications: 8 residential zones (RS-1-2, RS-1-4, RS-1-7, RS-1-14, RM-1-1, and others) and 6 commercial zones (CC-1-3, CC-4-9, CN-1-2, CO-1-2, and others), as well as 2 mixed-use zones (OC-1-3, OP-1-3) and 5 industrial zones (IL-2-1, IL-3-1, IH-1). San Diego uses the Land Development Code (LDC) for zoning regulation, organized into community plan areas. The city covers 372 square miles with 107+ communities, each having its own community plan that implements the General Plan. Residential zones use a numeric suffix system to denote density (e.g., RS-1-4 means Residential Single Unit, 1 unit per 4,000 sqft minimum lot). Commercial zones range from neighborhood commercial (CC-1-3) to intensive commercial. San Diego's unique geography — beaches, canyons, mesas, and harbor — shapes its zoning patterns. The city has focused growth toward transit corridors near Trolley lines and the Rapid Bus network. The city maintains an interactive zoning map for property lookup.
View San Diego Zoning Map (interactive online map)
Building & Planning Departments
The San Diego Building Department (San Diego Development Services Department (DSD)) handles all building permit applications, inspections, and code enforcement. You can reach them by phone at (619) 446-5000 or apply online through their permit portal. Office hours: Mon-Fri 7:30am-4:00pm (permit intake); online permits 24/7 via OpenDSD. For zoning questions and land use determinations, contact the San Diego Planning Department at (619) 235-5200. Zoning information is available online. Always verify current requirements directly with the department before beginning any project, as regulations and fees may have changed since this data was last verified.
Frequently Asked Questions
Can I build an ADU in my backyard in San Diego?
Yes. California state law requires San Diego to permit ADUs by-right on all residential lots. You can build a detached ADU up to 1,200 sqft, plus a Junior ADU (JADU) up to 500 sqft within your existing home. No owner-occupancy requirement applies. San Diego also offers a Standard ADU Plan Program to speed up permit approval. Permits are processed within 60 days.
What are San Diego's Airbnb (short-term rental) rules?
San Diego requires a Short-Term Residential Occupancy (STRO) license ($150/year) for all rentals under one month. There are four license tiers: Home-Sharing (hosted), Whole-Home Primary Residence, Mission Beach properties, and Whole-Home Non-Primary Residence (limited citywide via lottery). The 10.5% Transient Occupancy Tax applies to all short-term rentals. Operating without a license carries fines of $1,000 per day.
How does San Diego's zoning system work?
San Diego uses the Land Development Code (LDC) with community plan areas governing local land use. Residential zones use a numeric system — RS (Residential Single Unit) or RM (Residential Multiple Unit) followed by numbers indicating density (e.g., RS-1-4 = single-unit residential, 4,000 sqft minimum lot). Each of San Diego's 107+ communities has its own community plan that implements the General Plan for local conditions.
Do I need a permit to run a business from my home in San Diego?
Yes. A Home Occupation Permit ($175) is required for any business operated from a residence. Restrictions: no clients on-site, no non-resident employees, no exterior signs, maximum 25% of floor area used for business. San Diego's LDC Section 113.0295 governs home occupations.
What are the setback requirements for a single-family home in San Diego?
Setbacks in San Diego vary by zone designation. In the most common RS-1-4 (single-family residential) zone: front yard 15 ft, side yards 4 ft, rear yard 15 ft. Larger lot zones (RS-1-7, RS-1-14) have proportionally larger setbacks. Canyon-adjacent properties often have additional open space easements limiting building closer to canyon edges.
Are solar panels required on new homes in San Diego?
Yes. California's Title 24 Energy Code requires solar PV on all new low-rise residential construction. San Diego receives 266+ sunny days per year — one of the best solar markets in the US. SDG&E net metering is available. Properties in San Diego's Coastal Zone may need additional Coastal Commission review for rooftop modifications, but solar cannot be denied for code-compliant installations.
What is San Diego's Coastal Zone and how does it affect my property?
San Diego's Coastal Zone encompasses roughly the westernmost 3-4 miles of the city, covering neighborhoods like Ocean Beach, Mission Beach, Pacific Beach, La Jolla, and others. Properties in the Coastal Zone require a Coastal Development Permit (CDP) from the California Coastal Commission for new construction, additions over 10% of existing floor area, and some changes to primary structures. This applies in addition to regular city building permits and can add 2-6 months to project timelines.
Source: San Diego Land Development Code Section 141.0302; California Government Code Section 65852.2. Last verified April 5, 2026. View source