ADU Builders National City

The National City ADU Guide

National City, CA, USA

You’ve found the ultimate resource for building an accessory dwelling unit in National City, California. Whether you’re a homeowner looking to maximize flexibility for family or an investor planning to add units, our comprehensive guide is here to assist you every step of the way. Read on for more on what you can build in National City, rent rates, and to see completed & active projects we are building in National City. You can also access detailed ADU cost & floor plan information, plus check out homeowner stories.


What you can build

Maximum size: 1,200 square feet

Side/rear setbacks: 4 feet

Two story: Yes

Permitting timeline

Standard: 3-4 months

Coastal: TBD

Our ADU experience in National City

National City allows up to a 1200 sqft ADU with four foot side and rear setbacks for one-story units, and no minimum lot sizes. You can build a two-story structure, so long as height and setbacks conforms to the underlying zone. National City does require soils reports (>500 sqft), which adds some processing time and expense.

National City ADU Regulations & Permitting Requirements

Want to learn more about what kind of ADU you can build in National City? Check out our in-depth resource guide National City Regulations & Permitting Requirements outlining the ADU building code requirements. We also include what we have learned about how the city will interpret code based on actually designing & building in the city. You can also set up a consult if you want our advice on what you can build.
National City ADU Regulations

How much will an ADU rent for in National City?

Below are median rental prices by zip code and bedroom count. Be sure to run comps for your specific area or check with a realtor.

Zip City Neighborhood 1BR 2BR 3BR
91950 National City National City 2000 2650 3325

Source: Rentometer March 2024

ADU Builders National City

Full Accountability. ADU Expertise. Proven Results.

Our own team is responsible for delivering on our promises, from the first time you contact us to the time we hand you the keys to your new ADU home.

As experienced ADU builders, we will anticipate the pitfalls that less seasoned or less integrated teams will miss. And the volume of ADU jobs we handle means we have gained an incredible amount of expertise that we are excited to bring to your project.

We’re 100% focused on being the best ADU builders in National City and Greater San Diego.

Zip Codes: 91902, 91950, 91951, 92136

Neighborhoods: Alta Vista, Paradise Hills, South Bay Terraces, Lincoln Acres