The Sweet Spot Between Single Family and Apartments
Single-family rentals are easy to find but inefficient — one roof, one tenant, one set of expenses for one income stream.
Commercial multifamily (50+ units) is powerful but complex — commercial loans, property management companies, and six-figure minimum investments.
Small multifamily investing (2–4 units) sits in the sweet spot. Multiple income streams under one roof. Residential financing (FHA, conventional, DSCR). Manageable for a solo investor. And the economies of scale make every unit cheaper to operate than a standalone house.
This is where smart investors scale.
Analyze any duplex, triplex, or fourplex — cap rate, cash flow, and per-unit costs in 30 seconds.
Analyze a multifamily deal free Free · No signup · Any US propertyWhy 2–4 Units Beat Single-Family Rentals
| Factor | Single-Family | 2–4 Unit Multifamily |
|---|---|---|
| Income streams | 1 | 2–4 |
| Vacancy impact | 100% income loss | 25–50% income loss |
| Per-unit maintenance | Higher (no shared walls/roof) | Lower (economies of scale) |
| Financing | Conventional (20% down) | FHA (3.5% down if owner-occupant) |
| Loan type | Residential | Residential (not commercial) |
| Cap rate (typical) | 4–7% | 5–10% |
One vacancy in a single-family rental means zero income that month. One vacancy in a fourplex means you lose 25% — the other three units keep paying. That's the fundamental advantage of small multifamily investing: risk is distributed across multiple tenants.
→ Coming from house hacking? Our beginner's guide covers the FHA entry path. This page picks up where house hacking leaves off.
The Numbers on a Real Fourplex
A $340,000 fourplex in Columbus, OH — typical for the market in 2026:
| Line Item | Amount |
|---|---|
| Purchase price | $340,000 |
| Down payment (20% conventional) | $68,000 |
| Closing costs | $8,500 |
| Total investment | $76,500 |
| Monthly rent (4 units × $1,450) | $5,800 |
| Mortgage (PITI at 7.0%) | -$2,250 |
| Property management (10%) | -$580 |
| Maintenance reserve (5%) | -$290 |
| Vacancy reserve (5%) | -$290 |
| Insurance | -$250 |
| Monthly cash flow | $2,140 |
| Annual cash flow | $25,680 |
| Cash-on-cash return | 33.6% |
→ Run your own numbers with PIE's rental property calculator.
"I house hacked a duplex, then bought a fourplex with conventional financing 18 months later. The fourplex generates $2,200/month cash flow after all expenses. One roof, four tenants — way more efficient than four single-family houses."
→ Compare financing options in our investment property loans guide.
→ Read our 15-minute deal analysis framework and financial metrics guide to evaluate multifamily deals like a pro.