Fourplex

A single building with four separate units. It's the largest size that still qualifies for residential financing rather than commercial. Popular with small investors for that reason.

Also called quadplex, quad · Properties & types · Updated September 2026

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Where this comes up: getting ready

This word belongs to the getting ready part of a sale. Here is what that part holds, in order.

Set up your closing teamDecide if you want an agent · Find out who runs closings here
Set your priceLook at what nearby homes sold for · Check some online values
Prep and photograph the homeClear out and put things away · Fresh paint and a deep clean
Gather details and disclosuresWrite down the basics · Note the land and what stays

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Part 1 of 4

Why a seller cares

A fourplex is the largest building a buyer can still finance with a residential loan, which keeps the buyer pool wide. Rent rolls, leases and expense records are the listing's real photos.

Part 2 of 4

A simple example

Your fourplex grosses $4,600 a month. Buyers ask for the leases, twelve months of expenses, and whether any unit is month-to-month.

Fourplex: a simple example
What the buyer asks for	Why
The rent roll and leases	It is what they are buying
Twelve months of expenses	To work out the net
Occupancy and lease ends	To know what changes on day one

Four units is the line between a house with rent and a commercial building. The financing keeps it on the house side.

Part 3 of 4

What people get wrong

That four units and five are a small difference. Five needs a commercial loan, and the buyers change completely.

Part 4 of 4 · where to read next

Where it appears in the sale

Getting ready to sellBefore you list · the stretch of the sale this word belongs to

What a definition is, and what it isn't

Keighbor is a software company, not a law firm, brokerage, or tax adviser. This is general information, not legal, tax, financial, or real estate advice about your sale. Your situation may differ. Before acting on a contract, disclosure, title, tax, or pricing question, ask an appropriately licensed professional in your state.

Written and researched by Keighbor Research · drawn from the reference glossary · how we research and check what we publish

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