The California CAL HFA ADU Grant Program

The ADU Grant provides up to $40,000 to reimburse pre-development and non-reoccurring closing costs associated with the construction of the ADU. Pre-development costs include site prep, architectural designs, permits, soil tests, impact fees, property survey, and energy reports.

The objective of the Accessory Dwelling Unit (ADU) – Granny Flat Grant Program is to create more housing units in California by providing a grant to reimburse homeowners for pre-development costs associated with the construction of the ADU.

What is an ADU?

Accessory Dwelling Units (ADUs) have been known by many names: granny flats, in-law units, backyard cottages, secondary units and more. No matter what you call them, ADUs are an innovative, affordable, effective option for adding much-needed housing in California.

ADU infographic

Who is eligible

Got questions?  Call one of our ADU Grant Program lenders listed below.

How to apply

Since CalHFA is not a direct lender, our mortgage products are offered through private loan officers who have been approved and trained by our Agency. These loan officers can help you find out more about CalHFA’s programs and guide you through the ADU loan and grant processes.

Contact one of the CalHFA ADU Grant Program Lenders listed below:

Academy Mortgage Corporation
American Pacific Mortgage
Bay Valley Mortgage
CalCon Mortgage, Inc
Envoy Mortgage, Ltd.
Guild Mortgage, LLC Renovation Specialist Financing Team
Homebridge Financial Services, Inc
Land Home Financial Services
LoanDepot
MLD Mortgage, Inc. dba The Money Store
Mortgage Management Consultants, Inc. dba MMC Lending
Platinum Home Mortgage Corporation

In order to apply, find a lender near you on our website:
https://www.calhfa.ca.gov/adu

What documents should I have ready when contacting a loan officer?
When initially contacting a loan officer, you may want to have this list of documents and information available to help answer questions that they will ask you:

  • Pay stubs
  • Bank statements
  • Employment history
  • Previous tax returns

ADU Resources

Learn HOW TO ADU with a free webinar workshop

ADU Grant Application Process

Infographic of the CalHFA ADU Grant Program process

Other Names for ADU’s
Accessory Apartment Acessory Dwelling Unit Ancillary Unit Backyard Cottage Backyard Cottage Basement Apartment Carriage House Coach House Dawdy House Fonzie Flat Garage Apartment Garden Cottage Garden Suite Granny Annex Granny Flat Guest House Home Within a Home In-Law Suite “JADU” or “junior accessory dwelling unit Laneway House Mother/Daughter House Mother-In-Law Suite Multigenerational Home Multingenerational Suite Inlaw suite Secondary Suite secondary dwelling unit sidekick Studio Apartment Studio Suite