What is House Hacking?
House hacking is a real estate investment strategy where you purchase a property, live in one unit or room, and rent out the remaining space to offset or completely cover your housing costs. The term was popularized by BiggerPockets and has become one of the most accessible entry points into real estate investing because it allows you to use owner-occupied financing with as little as 3-5% down.
The concept is straightforward: instead of paying your entire mortgage out of pocket, you let tenants cover part or all of it. The most common form involves buying a small multifamily property (duplex, triplex, or fourplex) using an FHA loan, living in one unit, and renting out the others.
How house hacking works
With a duplex, you live in one side and rent the other. If your mortgage payment is $1,800 and the other unit rents for $1,200, your effective housing cost drops to $600. With a fourplex, you might collect $3,600 in rent from three units against a $2,400 mortgage, meaning you live for free and pocket $1,200 monthly.
Owner-occupied financing is the key advantage. FHA loans require just 3.5% down versus 20-25% for investment properties. Conventional loans allow 5% down on 2-4 unit properties if you occupy one unit. VA loans offer 0% down for eligible veterans on properties up to four units. These low down payments mean you can control a $400,000 fourplex with $14,000-$20,000 instead of $80,000-$100,000.
Types of house hacking
Traditional multifamily: Buy a 2-4 unit property, live in one unit, rent the rest. This is the most profitable form because each unit generates meaningful rent.
Rent-by-room: Buy a single-family house with 3-5 bedrooms, live in one room, and rent the others individually. Per-room rent often exceeds what you would get renting the whole house.
ADU strategy: Buy a single-family home with an accessory dwelling unit (garage apartment, casita, or converted space) and rent the ADU.
Short-term rental hybrid: Live in part of the property and list the rest on Airbnb or VRBO. This can generate 2-3x long-term rental income but requires more active management.
Financing comparison
| Loan Type | Down Payment | Rate Premium | Property Types |
|---|---|---|---|
| FHA | 3.5% | None | 1-4 units, owner-occupied |
| Conventional (owner) | 5-15% | None | 1-4 units, owner-occupied |
| VA | 0% | None | 1-4 units, owner-occupied |
| Conventional (investor) | 20-25% | +0.5-0.75% | 1-4 units, non-owner |
Pros and cons
Pros: Minimal down payment, better loan terms, build equity while living affordably, learn landlording with training wheels. Many investors use house hacking as a stepping stone: buy a fourplex, live in it for a year (FHA requirement), then move out and buy another.
Cons: Living next to or with your tenants, reduced privacy, property management responsibilities, FHA requires 1-year occupancy, some properties need work to be livable. The lifestyle trade-off is real: you are choosing to be a landlord in your own home.
House hacking and wholesaling
For wholesalers, house-hacking buyers represent a specific buyer profile. They are often newer investors with limited capital looking for 2-4 unit properties in livable condition at prices that work with FHA or conventional financing. They are not cash buyers, so deals marketed to house hackers need to account for 30-45 day closing timelines and the property must pass an FHA appraisal.