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AC Boost - Alameda County Down Payment Assistance

Alameda County, California

Last verified
Assistance

$210,000

The maximum the program publishes — not an offer

Income limit

150% AMI

Of area median income; varies by county and household size

Price cap

$1.0M

Highest purchase price the program allows

Repayment

Shared appreciation

Settled on the terms set by the administering agency

What is AC Boost - Alameda County Down Payment Assistance?

AC Boost - Alameda County Down Payment Assistance is a shared-appreciation loan for homebuyers in Alameda County, California.

  • Shared appreciation loan up to $150,000 for first-time homebuyers who live in, work in, or have been displaced from Alameda County. Income at or below 120% AMI. Apply entirely online without going through lender first. Funded by Measure A1.
  • Up to $150,000 in assistance.
  • shared equity with provider at resale.
  • Funding comes from County Measure A1 Bond.

How much assistance does it provide?

AC Boost - Alameda County Down Payment Assistance offers up to $210,000 in assistance.

  • The program asks buyers to contribute 1% of purchase price (borrower minimum).
  • Amounts are the program's published maximums, not an offer — the administering agency determines any individual award.

Do you have to pay it back?

AC Boost - Alameda County Down Payment Assistance is a shared-appreciation loan and is repaid under the terms set by the administering agency.

  • Repayment is triggered by Sale, transfer, or refinance (shared appreciation).
  • The assistance is recorded in Second position.
  • Forgiveness and repayment terms are set by the program and can change — confirm them on the official program page before applying.

Who qualifies?

AC Boost - Alameda County Down Payment Assistance is open to first-time homebuyers and buyers who will live in the home as their primary residence.

The program requires

  • First-time homebuyer — the program sets its own definition
  • The home is occupied as a primary residence
  • On credit: Contact lender for current credit score requirements
  • A completed homebuyer education course
  • Residency: Must live in, work in, or have been displaced from Alameda County; purchase within county
  • Citizenship or immigration status: U.S. citizen, permanent resident alien, or other eligible non-citizen
  • Must purchase in Alameda County unincorporated area or participating city. Shared equity model: county retains proportional share of appreciation. Lottery-based selection.

The program excludes

  • Manufactured homes
  • Purchases above the $1.0M price cap
  • Households above 150% of area median income

These are the program's own published rules, not a decision about any individual — the administering agency and a lender determine who actually qualifies.

What are the income limits?

AC Boost - Alameda County Down Payment Assistance limits household income to 150% of the area median income, which varies by county and household size.

  • 150% AMI; 4-person household limit ~$177,500 (2026 Alameda Co. AMI).
  • The limit applies to total household income, not only the borrower’s.
  • The program lists a maximum household size of 8.
  • Area median income figures are published by HUD and updated annually, so check the current table for the county before relying on a number.

What kind of home can it be used for?

AC Boost - Alameda County Down Payment Assistance caps the purchase price at $1.0M.

  • Eligible property types include Single-family (1-4 unit), FHA-approved condominium, townhome/PUD.
  • New construction is eligible.
  • Manufactured homes are not eligible.

Where does it apply?

AC Boost - Alameda County Down Payment Assistance serves buyers purchasing in Alameda County, California.

How do you apply?

Applications for AC Boost - Alameda County Down Payment Assistance go through the administering agency, which publishes the current terms and the application steps on its own site.

  1. Take a homebuyer education course

    Required by the program before funds are reserved.

  2. Contact the administering agency to reserve funds

    Funds are reserved through Contact provider directly; subject to funding availability, and are subject to availability.

  3. Work with a lender who handles the program

    Hey Prescott is not a lender and does not accept applications; this page describes the program so a buyer can take it to a lender or housing counselor.

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