House hacking means living in a property while renting out part of it, so rent from others offsets your housing cost. For many people it's the most accessible first step into real estate investing.
Common Ways to House Hack
- Small multifamily: buy a duplex, triplex, or fourplex, live in one unit, and rent the others.
- Rent by the room: rent spare bedrooms in a single-family home.
- ADU: rent a garage apartment, basement suite, or backyard unit, where local rules allow.
- Live-in, then rent: live in the home for a while, then move and keep it as a rental.
Why Financing Makes It Attractive
Because you live in the property, you may qualify for owner-occupant loans on 1–4 unit properties, which often come with lower down payments than investment-property loans. FHA loans are a common example. These programs typically require you to move in within a set time and live there for a period, often at least a year. Ask your lender about the specific requirements.
A Simple Duplex Example
- Total monthly housing payment (principal, interest, taxes, insurance): $2,600
- Rent from the other unit: $1,500
- Your net housing cost: $1,100/month
If renting a comparable place nearby would cost $1,600, you're ahead about $500 a month while also building equity. You still need to budget for vacancy, repairs, and capital reserves, because when the other unit is empty, you pay the whole mortgage.
Before You Buy
- Run the numbers both ways. Can you afford the full payment for a few months if the unit sits empty?
- Check zoning and HOA rules, especially for ADUs and room rentals.
- Be honest about lifestyle. You'll be neighbor and landlord at the same time.
- Think ahead. Will it still cash flow as a full rental when you move out?
Model Your House Hack
The House Hacking Calculator & Guide compares duplex, triplex, fourplex, roommate, and ADU scenarios. Getting ready to buy? Use the Mortgage Pre-Approval Readiness Checklist and read Closing Costs for Homebuyers.
Written by Marchelle Cook, a Realtor for 26 years and a real estate investor and property manager since 2012. This article is for educational purposes only and is not financial or legal advice. Loan program rules change; confirm with your lender.
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