(ADU) Accessory Dwelling Units

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Fees Table

Estimated Fees for Reference

Size (sf)	Fee Type	Amount	Notes
749	Plan Check Fee	$2,562.16	(Valuation $125,360.13)
	Permit Fee	$3,147.75
	Development Impact	$0.00
1200	Plan Check Fee	$4,093.01	(Valuation $200,844.00)
	Permit Fee	$3,150.39
	Development Impact	$18,711.00

*actual cost will vary based on valuation, fixture count, and square footage*

View the Master Fee Schedule Here

View the Impact Fee Schedule Here

What is an ADU?

What is an Accessory Dwelling Unit (ADU)?

An Accessory Dwelling Unit (ADU) is a distinct, self-contained living space situated on the same property as a primary residence. Commonly referred to as granny flats, in-law units, second units, or casitas, ADUs typically include the following features:

Living and sleeping areas
A kitchen
A bathroom

ADUs can be categorized into several types:

Detached ADUs: Standalone structures that are separate from the main residence.
Attached ADUs: Extensions connected to the existing home.
Conversion ADUs: Created by repurposing a portion of an existing structure, such as a garage or shed, or part of the main house.

For questions please contact Planningcounter@pomonaca.gov

What is a Junior ADU?

What is a Junior Accessory Dwelling Unit (JADU)?

A Junior Accessory Dwelling Unit (JADU) is a more compact version of an ADU, typically developed within the existing footprint of a single-family home. Key characteristics of JADUs include:

Complete containment within an existing single-family residence
The option to share a bathroom with the primary dwelling
The requirement for an efficiency kitchen, which includes a sink, cooking appliance, food preparation counter, and storage cabinets

JADUs provide a valuable housing alternative, allowing homeowners to optimize their living space while offering an additional unit for use.

For questions please contact Planningcounter@pomonaca.gov