How to start investing in multifamily real estate: the four sources of return, active vs passive deals, evaluating a building, financing and Colorado demand.
Multifamily investing is buying apartment buildings or other multi-unit housing to earn rent and long-term gains. Real estate earns through net operating income, tax shelter, equity build-up and appreciation.
To start, choose between owning a building yourself and taking a passive share in a deal, then study the market, underwrite the income, arrange financing and plan the management. Multifamily sits inside the wider field covered in commercial real estate investing basics.
This guide covers why investors buy apartments, the two ways to invest and a worked underwriting example. It then covers financing, Colorado landlord rules and current Colorado market signals. For definitions and building types, start with what counts as a multifamily property.
Why Investors Buy Multifamily
Multifamily property offers four sources of return:
- Net operating income: the rent left after operating expenses.
- Tax shelter: depreciation and tax credits that reduce taxes on income.
- Equity build-up: your equity grows as the loan is paid down.
- Capital appreciation: the gain in value, collected when you sell.
Residential rental property is depreciated over 27.5 years. In Colorado, apartment buildings are also assessed as residential property for property tax: 7.05% of value for schools and 6.8% for local government in 2026, against 25% for most commercial buildings.
How Depreciation Works on an Apartment Building
The IRS treats a building as residential rental property when at least 80% of its gross rental income comes from dwelling units. The building, not the land, is depreciated on a straight line over 27.5 years with a mid-month convention.
Some owners order a cost segregation study, which moves parts of a building into shorter depreciation classes. At RMCRE’s August 2026 quarterly meeting, brokers noted that 100% bonus depreciation was restored for qualifying five-, seven- and 15-year assets from 2026. Whether a study pays depends on the building, its basis and your tax position, so run it past a CPA. More on this in Colorado commercial property tax benefits.
Why Multifamily Income Is Steadier
An apartment building spreads its income across many tenants. One vacancy in a 20-unit building removes 5% of the rent, while one vacancy in a single-tenant building removes all of it.
Apartment leases are also short, usually a year or less. Rents can reset to the market more often than on a long office or retail lease. That cuts both ways: income can rise quickly in a tight market and fall quickly in a soft one.
Active vs Passive Multifamily Investing
You can own and run a multifamily building yourself, or invest passively in a deal a sponsor runs.
As a limited partner in a partnership or LLC, you are generally hands-off. Deals range from core, the least risky, through value-add to opportunistic.
| Factor | Active (direct owner) | Passive (limited partner) |
|---|---|---|
| Control | Full: you choose rents, managers and when to sell | Little: the sponsor decides |
| Time | High, even with a property manager | Low |
| Liability | You sign the loan, often with personal guarantees | Usually limited to the money invested |
| Fees | Management fees if you hire help | Sponsor fees on acquisition, management and sale |
| Minimum check | The full down payment | A share of the equity |
| Exit | You decide | Set by the sponsor’s business plan |
Passive investors should study the sponsor as closely as the building: track record, fees, how profits are split and what happens if the plan slips. A sponsor’s projections are only estimates.
Owners selling another property can also go passive through a Delaware Statutory Trust inside a 1031 exchange. RMCRE brokers discussed this route at the August 2026 meeting for owners with high loan balances; see how DST 1031 exchanges work.
How to Evaluate a Multifamily Property
Start with net operating income, then test the price with a cap rate and the loan with debt service coverage.
- Read the rent roll for rents, leases and vacancies; see what a rent roll shows.
- Work out NOI, revenue minus operating expenses, using calculating net operating income.
- Compare the price with Colorado cap rates.
- Check the debt service coverage ratio lenders will want, typically 1.1 to 1.4.
Worked Example: A 12-Unit Building
The numbers below are assumptions for illustration, not a market quote. They show how each step feeds the next.
| Line | Calculation | Amount |
|---|---|---|
| Gross potential rent | 12 units x $1,500 x 12 months | $216,000 |
| Less vacancy and credit loss | 6% of gross potential rent | -$12,960 |
| Plus other income | Laundry, parking, fees | $4,800 |
| Effective gross income | $207,840 | |
| Less operating expenses | Assumed 40% of effective gross income | -$83,136 |
| Net operating income | $124,704 |
At a 7.0% cap rate, the income supports a value of about $1.78 million ($124,704 / 0.07). A 7.0% cap rate is what RMCRE’s Mesa County update reported for Grand Junction commercial sales in the first half of 2026.
Now test the loan. Assume a 70% loan of $1,246,000 at 6.5% interest, amortized over 30 years.
| Line | Amount |
|---|---|
| Annual debt service | About $94,500 |
| Debt service coverage (NOI / debt service) | About 1.32 |
| Cash flow before tax (NOI – debt service) | About $30,200 |
| Down payment (30% of $1.78 million) | $534,000 |
| Cash-on-cash return (cash flow / down payment) | About 5.7% |
A coverage ratio of 1.32 sits inside the range lenders usually want. A cash-on-cash return below the cap rate shows the loan costs more than the building yields. The investor then depends on rent growth or loan paydown for a better result. See cash-on-cash return explained for more on that measure.
The Metrics Investors Use
| Metric | Formula | What it tells you |
|---|---|---|
| Cap rate | NOI / price | Yield before financing |
| Price per unit | Price / number of units | Quick comparison between buildings |
| Gross rent multiplier | Price / gross annual rent | Rough screen when expenses are unknown |
| Expense ratio | Operating expenses / effective gross income | Whether the seller’s costs look realistic |
| Debt service coverage | NOI / annual debt service | Whether income covers the loan |
| Cash-on-cash return | Annual cash flow / cash invested | Yield on your own money |
| IRR | Return across the whole hold, including the sale | Total performance over time |
In the example, the price per unit is about $148,000 and the gross rent multiplier is about 8.2. Use IRR for real estate when comparing deals with different hold periods.
Financing a Multifamily Purchase
Apartment buildings are financed with commercial loans sized on the property’s value and income.
Lenders size the loan on loan-to-value and debt service coverage. Freddie Mac buys multifamily loans from approved local lenders, called Optigo lenders, for acquisitions, renovations and supplemental loans. SBA 504 loans cannot be used for investment in rental real estate. Compare the commercial real estate loan types.
| Loan source | Fits | Notes |
|---|---|---|
| Local or regional bank | Small buildings, mountain towns, relationship borrowers | Often shorter terms with recourse |
| Agency (Freddie Mac, Fannie Mae) | Stabilized buildings with five or more units | Freddie Mac runs a small-balance program aimed at 5- to 50-unit properties |
| Bridge lender | Buildings in lease-up or mid-renovation | Short term, higher rate; see bridge loans for commercial property |
| Seller financing | Thin local markets | Terms are negotiated case by case |
Lenders cap the loan at the lower of the loan-to-value limit and the amount the income can carry at their coverage ratio. In a resort town with high prices and low cap rates, the coverage test usually decides. Read how LTV limits commercial loans before you set a budget.
Colorado Landlord Rules That Affect Income
Colorado law shapes what an apartment owner can do with rents and leases. Underwrite these rules before you make an offer.
- No local rent control: State law bars counties and towns from enacting rent control on private housing. Voluntary agreements and recorded deed restrictions that limit rent are allowed, so check every unit for a covenant.
- One rent increase a year: A landlord may raise rent only once in any 12-month period of a tenancy, whatever the lease type.
- Notice of increase: Where there is no written agreement, a landlord must give at least 60 days’ written notice before raising rent.
- Cause for eviction: Since HB24-1098 was signed on April 19, 2024, most residential evictions need cause, such as nonpayment or damage. Listed no-fault grounds include demolition, major renovation, owner or family move-in and withdrawing the unit to sell, each with limits.
These rules change the value-add playbook. A plan that relies on not renewing tenants to renovate units needs an attorney’s review first.
Steps to Make Your First Multifamily Investment
- Set your criteria: town, building size, budget, and whether you want stabilized income or a value-add project.
- Pick a market: compare job growth, housing shortages and cap rates between towns.
- Build a team: a broker who knows the town, a lender, a CPA, an attorney and a property manager.
- Underwrite: rebuild the seller’s numbers from the rent roll, leases and actual expense bills.
- Make an offer: a letter of intent sets price, deposit, due diligence period and financing terms.
- Do due diligence: inspect every unit, audit leases and collections, and order an appraisal and environmental review; use the commercial due diligence checklist.
- Close and take over: transfer deposits, utilities, insurance and service contracts, and introduce yourself to tenants.
Mistakes to Avoid
- Trusting a pro forma instead of the actual rent roll and bank deposits
- Underestimating repairs, insurance and property tax after a sale
- Missing deed restrictions that cap rents on some units
- Planning a renovation that needs no-fault evictions without legal advice
- Borrowing so much that one bad year breaks the coverage ratio
Multifamily Investing in Colorado
Housing shortages in Colorado’s mountain and Western Slope towns support demand for multifamily property.
The Roaring Fork Valley is about 7,000 housing units short. Harvest Roaring Fork proposes 1,500 homes, including 450 deed-restricted affordable and workforce units. Grand Junction’s Terminal project will add 72 mixed-income homes downtown. For definitions, see what counts as a multifamily property.
RMCRE’s market updates show how far pricing differs between towns. The cap rates below are for commercial sales overall, not apartments alone, but they show where yields sit.
| Town or area | Period | Reported signal |
|---|---|---|
| Colorado Springs | Q4 2025 | Multifamily occupancy rose to 93.0%; 2025 deliveries were less than a third of 2024’s; Forge at Briargate ($82 million) and Upland Flats ($81 million) traded |
| Grand Junction (Mesa County) | First half 2026 | Cap rate 7.0%, down from 7.75% a year earlier |
| Montrose | Q2 2026 | Cap rate 8%, up from 7% |
| Chaffee County | April 2026 YTD | Cap rate 6.5% |
| Pagosa Springs | Q1 2026 | Core-area commercial sales averaged roughly a 6.7% cap rate |
| Steamboat Springs | Q1 2026 | Cap rates 5.5% to 6% |
| Aspen-Basalt-Carbondale corridor | January 2026 | Stabilized assets trading at roughly 4% to 6% cap rates |
The pattern is clear. Front Range and Western Slope towns offer higher yields, while resort towns offer lower yields with steady demand from a short housing supply. Read the Colorado Springs Q4 2025 market report for the full multifamily data, or see Colorado Springs commercial property.
Frequently Asked Questions
How much money do you need to invest in multifamily?
For a direct purchase, you bring the down payment the lender’s loan-to-value limit leaves, plus closing costs and reserves. Passive investors in a syndication can start with a share of the equity, set by the sponsor.
Is multifamily a good investment for beginners?
It can be, because income comes from many tenants and the numbers are easy to check against the rent roll. Beginners often start with a small building or a passive share and lean on an experienced manager.
What is a good cap rate for an apartment building?
There is no single good number; it depends on the town, the building and interest rates. In 2026, RMCRE’s updates showed commercial cap rates from roughly 4% in the Aspen corridor to 8% in Montrose.
Can I use an SBA loan to buy an apartment building?
No. SBA 504 loans cannot fund speculation or investment in rental real estate. Apartment buyers use bank, agency or bridge loans instead.
Does Colorado allow rent control?
No. State law prohibits counties and towns from enacting rent control on private residential property. Rents can still be limited by voluntary agreements and recorded deed restrictions.
Multifamily Help From RMCRE
RMCRE’s investment service covers market analysis, acquisition and disposition across property types, including multifamily. Ask for multifamily investment analysis.
We have been a network of partner brokers across Colorado mountain towns since 2010. A buyer can compare a Grand Junction building with a resort-town project through one contact.
