County directory

San Diego County ADU rules

Each place name links to that city or county's own ADU page. Places with a 'See our rules summary' button also have our plain-language summary of the local ADU rules, with sources. Each place below says whether we show local rules or California state rules.

Places in San Diego County

Carlsbad (opens the government site in a new tab)
Showing California state rules
We don't have Carlsbad's own ADU rules on file, so this shows the California state rules that apply across the state. Check with Carlsbad for local details.
Chula Vista (opens the government site in a new tab)See our rules summary
Showing Chula Vista city rules
These are Chula Vista's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Chula Vista rule may conflict with state law or is being challenged, we show the California state rule instead. This covers owner-occupancy rules for junior ADUs, size limits for attached ADUs and height limits for detached ADUs on multifamily lots.
Coronado (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Coronado details
The size, setback, height, and parking figures are California state rules. The Coronado section lists the local details we have on file, like plans, forms, and contacts.
Del Mar (opens the government site in a new tab)
Showing California state rules because Del Mar's local rules may conflict with state law or are being challenged
We show the state rules for limits on combining ADU types. Check with Del Mar about how it handles this today.
El Cajon (planning page) (opens the government site in a new tab)
Showing California state rules
We don't have El Cajon's own ADU rules on file, so this shows the California state rules that apply across the state. Check with El Cajon for local details.
Encinitas (opens the government site in a new tab)See our rules summary
Showing Encinitas city rules
These are Encinitas's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Encinitas rule may conflict with state law or is being challenged, we show the California state rule instead. This covers a one-ADU limit, front setbacks, height limits and a recorded covenant for ADUs.
Escondido (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Escondido details
The size, setback, height, and parking figures are California state rules. The Escondido section lists the local details we have on file, like plans, forms, and contacts.
Imperial Beach (opens the government site in a new tab)See our rules summary
Showing California state rules because Imperial Beach's local rules may conflict with state law or are being challenged
The size, setback, height, and parking figures are California state rules. The Imperial Beach section lists the local details we have on file, like plans, forms, and contacts.
Where a Imperial Beach rule may conflict with state law or is being challenged, we show the California state rule instead. This covers the size table for attached ADUs.
La Mesa (opens the government site in a new tab)See our rules summary
Showing California state rules, plus La Mesa details
The size, setback, height, and parking figures are California state rules. The La Mesa section lists the local details we have on file, like plans, forms, and contacts.
Lemon Grove (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Lemon Grove details
The size, setback, height, and parking figures are California state rules. The Lemon Grove section lists the local details we have on file, like plans, forms, and contacts.
National City (opens the government site in a new tab)
Showing California state rules
We don't have National City's own ADU rules on file, so this shows the California state rules that apply across the state. Check with National City for local details.
Oceanside (opens the government site in a new tab)
Showing California state rules because a local rule change is pending
A local rule change is pending. Oceanside is updating its ADU rules (Zoning Ordinance Article 30, Section 3006) and says it applies state law and the state ADU handbook until the update takes effect. We'll add the new local rules after they take effect and we've reviewed them.
Poway (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Poway details
The size, setback, height, and parking figures are California state rules. The Poway section lists the local details we have on file, like plans, forms, and contacts.
San Diego (opens the government site in a new tab)See our rules summary
Showing San Diego city rules
These are San Diego's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a San Diego rule may conflict with state law or is being challenged, we show the California state rule instead. This covers the front setback for detached ADUs and parking near the beach.
San Marcos (opens the government site in a new tab)See our rules summary
Showing California state rules, plus San Marcos details
The size, setback, height, and parking figures are California state rules. The San Marcos section lists the local details we have on file, like plans, forms, and contacts.
Santee (planning page) (opens the government site in a new tab)
Showing California state rules
We don't have Santee's own ADU rules on file, so this shows the California state rules that apply across the state. Check with Santee for local details.
Solana Beach (opens the government site in a new tab)
Showing California state rules
We don't have Solana Beach's own ADU rules on file, so this shows the California state rules that apply across the state. Check with Solana Beach for local details.
Vista (opens the government site in a new tab)
Showing California state rules
We don't have Vista's own ADU rules on file, so this shows the California state rules that apply across the state. Check with Vista for local details.
Unincorporated San Diego County (opens the government site in a new tab)See our rules summary
Showing California state rules, plus San Diego County details
The size, setback, height, and parking figures are California state rules. The San Diego County section lists the local details we have on file, like plans, forms, and contacts.

All counties in the ADU directory