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Condo vs House vs Duplex: Which First Rental Pencils Best?

Oct 3, 20269 min read

At a hypothetical $250,000 purchase price, the condo below needs about $460 a month of owner support, the house needs $169 and the duplex needs $21 after debt service and replacement-reserve contributions. The duplex has the smallest shortfall. None of the three meets a positive-cash-flow requirement at that price.

That distinction matters when choosing a first rental. Comparing condo versus house investment property, with a duplex as a third option, is useful only when you compare the full budget and the risks behind it. A property type cannot guarantee tenant behavior, financing, resale demand or a particular return.

This guide holds price and loan terms constant so you can see which operating lines change. All amounts are illustrative assumptions, not current market quotes. Then it shows how to adjust the comparison for association obligations, a vacant unit and unequal cash requirements. Use the first-rental funding guide alongside it when deciding how much you can commit.

The same purchase price, three operating budgets

Each fictional property costs $250,000. A 25% down payment is $62,500, leaving a $187,500 loan. At 7% with 30-year amortization, monthly principal and interest is $1,247.44. The example excludes mortgage insurance and financed fees.

Taxes are an assumed $3,000 annually for each property. That is a modeling convention, not a claim that the three parcels have identical assessments. Management is 9% of rent after the vacancy allowance. Other income and separate collection losses are zero in this comparison; a real budget must address both.

The condo rents for $1,850, the house for $2,050 and the duplex's two units for $1,300 each. The 6%, 6% and 8% vacancy assumptions are simply three input choices. They are not evidence that one type attracts better tenants or has a naturally lower turnover rate.

Monthly lineCondoHouseDuplex
Scheduled rent$1,850.00$2,050.00$2,600.00
Vacancy allowance$111.00$123.00$208.00
Rent after vacancy$1,739.00$1,927.00$2,392.00
Management$156.51$173.43$215.28
HOA dues$380.00$0.00$0.00
Repairs$60.00$125.00$190.00
Property taxes$250.00$250.00$250.00
Insurance$45.00$125.00$160.00
Owner-paid utilities$0.00$0.00$110.00
NOI before replacement reserve$847.49$1,253.57$1,466.72
Replacement-reserve contribution$60.00$175.00$240.00
Cash available before debt$787.49$1,078.57$1,226.72
Principal and interest$1,247.44$1,247.44$1,247.44
Cash available after reserve and debt-$459.95-$168.87-$20.72

The respective cap rates using pre-reserve NOI are 4.07%, 6.02% and 7.04%. The RentalCalcs calculator includes replacement reserves in its expense total, which produces lower displayed cap rates for the same inputs: about 3.78%, 5.18% and 5.89%. Neither convention should be silently substituted for the other. The NOI guide explains what to reconcile.

The table is a stabilized annual budget divided by twelve. It does not describe the actual bank balance during a turnover or roof replacement. Initial work, closing costs and opening cash reserves also sit outside this monthly comparison.

What price reaches operating break-even?

For this specific exercise, assume taxes continue to equal 1.2% of price annually, financing remains 75% of price, and every other line stays unchanged. A dollar of price adds about $0.00599 to monthly taxes and loan payments combined. Divide cash available before tax and debt by that factor.

PropertyApproximate price for zero cash flow after reserveDifference from $250,000
Condo$173,210$76,790 lower
House$221,807$28,193 lower
Duplex$246,540$3,460 lower

Those are modeled operating thresholds, not appraisals or recommended offers. Actual taxes may not move proportionally with price, and insurance, fees and loan pricing may change. Break-even also provides no payment for your invested cash or unforeseen costs. Reaching zero is a screening milestone, not a sufficient investment return.

Condos: identify what the HOA payment buys

The condo's repairs, reserve and insurance total $165 monthly, versus $425 for the house. In this example, the association covers enough common-property obligations to reduce those direct owner costs by $260. Its $380 dues more than offset that saving by $120. The remaining cash-flow difference comes from rent, vacancy and management.

Verify that allocation before using it. The declaration, maintenance responsibilities and insurance documents determine which systems and surfaces belong to the association and which belong to you. An interior policy, an association master policy and a loss-assessment endorsement do not automatically cover every possible charge.

Request the current budget, reserve information, recent meeting minutes, assessment notices and rental rules. Look for scheduled projects and the funding assigned to them. Ask about approved charges as well as projects being discussed. A reserve balance is more informative when you know the work it must fund.

An $8,000 assessment would create an $8,000 cash requirement when due. It equals about 9.4 months of this condo's pre-reserve NOI, but the existing negative cash flow means the assessment is not being covered by surplus operating income. If the seller pays it at closing, document that allocation rather than quietly removing the risk from the worksheet.

Rental permission and financing are separate checks

Confirm whether the unit can be leased on your intended timeline, including any waiting period, minimum lease term or rental cap. A statement that other units are rented does not establish this unit's current eligibility.

Ask the lender to review the project early. Fannie Mae's project standards require applicable project eligibility review in addition to borrower underwriting. Its ineligible-project guidance identifies issues such as critical repairs and certain litigation or ownership arrangements. The actual review depends on the project and transaction.

Do not assume an alternative lender will finance a project that fails one program's review. Obtain written terms before treating a fallback as available, and consider whether the same issue could restrict a future buyer. A financing problem can affect the exit as well as today's monthly payment.

Single family: test turnover assumptions and resale options

A house puts more of the maintenance plan directly under the owner's control. That can make it easier to choose a contractor or sequence discretionary work. It also leaves you responsible for funding those decisions, including obligations that cannot safely be postponed.

The $175 monthly replacement contribution in the example should be checked against the building's condition. An imminent $12,000 roof project cannot be funded in one year with $2,100 of new contributions. It needs an opening balance, an upfront purchase adjustment or another funded plan. Use the CapEx reserve worksheet to distinguish a near-term project from long-run saving.

A longer tenancy can reduce turnover costs, but do not infer tenant reliability or length of stay from the property type. Use lease history and relevant local evidence. In a separate turnover scenario, one vacant month at $2,050 plus $1,450 of make-ready work totals $3,500 before other expenses. If that empty month is already in the annual vacancy budget, reconcile it instead of subtracting the same lost rent again.

An eventual house buyer might be an owner occupant or an investor. Compare recent sales, marketing time, financing eligibility and the property's condition to evaluate that exit. Owner-occupant demand does not create a guaranteed price floor. The house's $28,193 gap to modeled operating break-even is not proof of a resale premium; it is simply the difference between the asking price and this budget's threshold.

The vacancy guide and cash flow versus appreciation discussion help separate these operating and resale assumptions.

Duplexes: a second rent payment does not cover every bill

The duplex has $550 more scheduled rent than the house. It also has higher assumed repairs, replacements, insurance and owner-paid utilities. Confirm the actual number of systems, separate meters and utility responsibilities rather than multiplying every house expense by two.

A single vacant unit leaves $1,300 of gross rent, slightly more than the $1,247.44 loan payment. That fact alone does not mean the occupied unit carries the property. Management, taxes, insurance, repairs, utilities and reserve funding still need cash.

For a specific month with one unit empty, replace the annual vacancy allowance with actual collected rent. At $1,300 collected, management is $117. Keeping the other example costs unchanged leaves negative $1,014.44 after reserve funding and the loan payment. This stress case does not also subtract the original $208 vacancy allowance.

That is a much more useful liquidity test than comparing one unit's gross rent only with the mortgage. Add actual turn work or leasing fees if that month incurs them. The one-unit-rented duplex analysis develops the timing problem further.

A second stress case increases the duplex's repairs and replacement contributions by 25%. The increase is $107.50 monthly, moving the original $20.72 shortfall to $128.22. These are separate scenarios unless you intentionally combine them into a more severe case.

If you will occupy one unit, change the income and household-housing comparison explicitly. You cannot count your own unit's hypothetical rent as collected income while also claiming its housing savings. Start with the duplex versus triplex house-hack comparison and the house-hack calculator.

Financing differences to put in writing

Holding loan terms constant makes the example easier to read. Real quotes can differ by occupancy, unit count, property condition, project eligibility, borrower qualifications and loan program. There is no universal down payment or coverage threshold that proves these three loans will be approved.

Ask each lenderWhy it changes the comparison
Maximum loan amount and required down paymentChanges debt service and cash committed
Interest rate, points and lock periodSeparates recurring cost from upfront pricing
Amortization and maturity dateIdentifies a possible balloon or refinance need
Treatment of rental incomeSeparates qualification income from the operating budget
Required reserves and mortgage insuranceAdds cash requirements or recurring costs
Property or project conditionsIdentifies approvals needed before closing

For illustration, a 0.25 percentage-point increase from 7% to 7.25% on the $187,500 loan adds $31.64 monthly. That exceeds the duplex's original $20.72 shortfall, so even a small quote change matters to a near-break-even property.

Do not apply an advertised DSCR minimum without its definition. Using the pre-reserve NOI above, coverage is about 0.68 for the condo, 1.00 for the house and 1.18 for the duplex. A lender may use a different expense treatment or, for some small residential rental products, a rent-to-housing-payment calculation. Compare the underwriting method in the quote, as explained in the DSCR versus conventional loan guide.

Compare the cash commitment as well as the payment

Suppose each purchase has illustrative acquisition costs of 3%, or $7,500, excluding opening reserves and initial work. The shared down payment plus those costs is $70,000. Annual cash available after reserve contributions is approximately -$5,519 for the condo, -$2,026 for the house and -$249 for the duplex.

That makes the simplified cash-on-cash returns approximately -7.88%, -2.89% and -0.36%, respectively. Additional upfront work or an opening reserve changes the denominator and funding requirement. A larger denominator can make a negative percentage look less severe without improving the dollar loss.

For your actual comparison, show five separate amounts: down payment, acquisition costs, immediate work, opening retained reserves and projected first-year owner contributions. Do not combine them into one unlabeled equity number. The cash-on-cash return guide explains the return calculation; a monthly cash calendar explains when you need the money.

Build a comparison using real listings

Choose properties you would actually consider owning, then gather comparable evidence for each. Equal purchase prices in one metro can buy very different locations, conditions and maintenance obligations. Record those differences rather than attributing every result to property type.

  1. Verify current leases and a supported rent range for each unit.
  2. Replace the example taxes, insurance and utilities with property-specific estimates.
  3. Review association obligations or the building's direct maintenance responsibilities.
  4. Obtain financing terms for each actual property.
  5. Run normal operations, a vacancy month and a repair or assessment scenario.
  6. Set a minimum return and maximum cash requirement before ranking the results.

Use the single-family calculator for a house or individual condo and the multifamily calculator for unit-by-unit duplex analysis. Keep the reserve convention consistent across both. Save the scenarios in your account so you can compare the documents behind the numbers when a seller, lender or contractor changes an assumption.

The best candidate is the one that meets your return, liquidity and operating requirements with evidence you can defend. In this particular example, all three require a change in price, income, costs or financing to produce positive cash after the planned reserve contribution.

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