Rent vs Buy a Condo: The Numbers Nobody Runs for You
A full side-by-side comparison of buying a $350K condo vs renting the equivalent — including HOA fees, special assessments, opportunity cost, and the 5-year and 10-year breakeven math.
"You're throwing money away on rent." It's the most repeated phrase in personal finance, and when it comes to condos, it's often dead wrong.
The rent-vs-buy calculation for a condo is fundamentally different from a single-family home. Condos carry costs that houses don't — HOA fees, special assessment risk, slower appreciation, and restrictions that limit your exit options. When you run the actual math instead of relying on slogans, the answer isn't always what the real estate industry wants you to hear.
Let's run it. Side by side. No hand-waving.
The Setup
We'll compare two scenarios for a single person or couple in a mid-tier U.S. metro (think Denver, Chicago, Charlotte, or Phoenix):
Scenario A: Buy a $350,000 condo
- 20% down payment: $70,000
- Mortgage: $280,000 at 6.75% (30-year fixed)
- Property tax: $3,150/year (0.9% of value)
- HOA fee: $450/month (starting)
- Condo insurance (HO-6): $600/year
- Closing costs to buy: $10,500 (3%)
Scenario B: Rent the equivalent unit
- Monthly rent: $2,100 (market rate for comparable unit)
- Renter's insurance: $200/year
- Annual rent increase: 3.5%
Both scenarios assume the person has $80,500 available ($70,000 for down payment + $10,500 for closing costs). In the rental scenario, that $80,500 stays invested.
Year 1: Monthly Cost Comparison
Buying
| Item | Monthly |
|---|---|
| Mortgage (P&I) | $1,816 |
| Property tax | $263 |
| HOA fee | $450 |
| Condo insurance | $50 |
| Maintenance (inside unit) | $75 |
| Total | $2,654 |
Renting
| Item | Monthly |
|---|---|
| Rent | $2,100 |
| Renter's insurance | $17 |
| Total | $2,117 |
Monthly difference: $537 more to buy.
That $537/month gap means the buyer is paying $6,444 more per year than the renter. And that's before we account for the opportunity cost of the down payment.
The Opportunity Cost of the Down Payment
The buyer locked up $80,500 in a down payment and closing costs. The renter invested that same $80,500 in an S&P 500 index fund averaging 7% annual returns.
After 5 years, the renter's investment grows to approximately $112,900.
After 10 years: approximately $158,400.
That's $32,400 in gains at year 5 and $77,900 at year 10 — money the buyer never sees because it's trapped in the condo's equity, which may or may not have grown.
The Monthly Savings Investment
The renter also saves $537/month in year 1 compared to the buyer. That savings shrinks over time as rent increases, but in the early years, the renter invests the difference.
With a 3.5% annual rent increase, the renter's cost surpasses the buyer's fixed mortgage payment around year 6-7. But by then, the renter has accumulated a significant investment balance from the years of monthly savings.
Renter's monthly savings invested at 7% over 5 years: approximately $38,200.
The HOA Fee Trajectory
Here's where condos diverge from every other rent-vs-buy calculator you've seen. The HOA fee isn't fixed. It grows — and it grows faster than inflation.
At a 6% annual increase (the national average for established buildings, per CAI data):
| Year | Monthly HOA | Annual HOA |
|---|---|---|
| 1 | $450 | $5,400 |
| 3 | $506 | $6,072 |
| 5 | $569 | $6,828 |
| 7 | $639 | $7,668 |
| 10 | $761 | $9,132 |
Over ten years, you'll pay $72,516 in HOA fees — not the $54,000 a simple calculator would show by multiplying $450 by 120 months. That's $18,516 more than the "stable" HOA number.
For a full breakdown of what drives these increases, see HOA fees explained.
Special Assessments: The Cost Nobody Models
No rent-vs-buy calculator includes special assessments because they're unpredictable. But they're not uncommon. CAI (Community Associations Institute) data shows that roughly 25-30% of associations levy a special assessment within any given five-year period.
Average special assessment: $8,000-$15,000 per unit. Large assessments ($25,000-$100,000+) occur in buildings with deferred maintenance, structural issues, or insurance cost spikes. See the special assessment crisis for what's happening nationally.
For this model, we'll include a conservative $12,000 special assessment in year 4. The renter pays $0.
Condo Appreciation: The Uncomfortable Data
The standard argument for buying is: "Your home appreciates." For condos, the data tells a more complicated story.
FHFA data shows that condo appreciation has consistently lagged single-family homes by 1-2 percentage points per year over the last 20 years. In many urban markets, condos appreciated 2-3% annually compared to 4-5% for detached homes.
For this model, we'll use 2.5% annual appreciation — generous for a condo in a building that's aging and facing rising costs.
$350,000 condo after 5 years at 2.5%: $395,900 $350,000 condo after 10 years at 2.5%: $448,000
That's $45,900 in equity from appreciation at year 5 and $98,000 at year 10. Sounds decent until you subtract selling costs.
Selling Costs Eat Your Gains
When you sell the condo, you'll pay:
- Agent commissions: 5% = $19,795 (at year 5 value)
- Closing costs: 1.5% = $5,939
- HOA transfer fee: 0.5-1.5% = $1,980-$5,939
- Total selling costs: $27,714-$31,673 at year 5
Your $45,900 in appreciation just got cut to $14,227-$18,186 in actual realized gain. At year 10, the $98,000 in appreciation becomes roughly $62,000 after selling costs on the higher value.
The 5-Year Breakeven
Let's add it all up at the five-year mark.
Buyer's Position at Year 5
| Item | Amount |
|---|---|
| Home equity (appreciation + principal paydown) | $75,600 |
| Minus selling costs | -$29,000 |
| Net equity recovered | $46,600 |
| Total housing costs paid (mortgage, HOA, tax, insurance, maintenance) | $159,240 |
| Special assessment | $12,000 |
| Down payment + closing costs spent | $80,500 |
| Total money out | $251,740 |
| Net cost of housing for 5 years | $205,140 |
Renter's Position at Year 5
| Item | Amount |
|---|---|
| Total rent paid | $136,680 |
| Renter's insurance | $1,000 |
| Total housing cost | $137,680 |
| Down payment equivalent invested (value) | $112,900 |
| Monthly savings invested (value) | $38,200 |
| Total investment balance | $151,100 |
| Net cost of housing for 5 years | -$13,420 (net positive) |
Read that again. The renter's investments actually exceed their total housing costs by $13,420. The buyer spent $205,140 net. The gap at year 5 is $218,560.
That's not a rounding error. That's a down payment on a house.
The 10-Year Breakeven
The buyer's position improves over time because the mortgage is fixed while rent keeps rising. Let's check year 10.
Buyer's Position at Year 10
| Item | Amount |
|---|---|
| Home equity (appreciation + principal paydown) | $157,800 |
| Minus selling costs | -$34,000 |
| Net equity recovered | $123,800 |
| Total housing costs paid (10 years) | $345,600 |
| Special assessment | $12,000 |
| Down payment + closing costs | $80,500 |
| Total money out | $438,100 |
| Net cost of housing for 10 years | $314,300 |
Renter's Position at Year 10
| Item | Amount |
|---|---|
| Total rent paid (with 3.5% annual increases) | $298,440 |
| Renter's insurance | $2,000 |
| Total housing cost | $300,440 |
| Down payment equivalent invested | $158,400 |
| Monthly savings invested (shrinking as rent rises) | $42,800 |
| Total investment balance | $201,200 |
| Net cost of housing for 10 years | $99,240 |
The gap at year 10 is $215,060. The buyer still hasn't caught up.
When Does Buying Actually Win?
For a condo, buying starts to make financial sense when several conditions are met simultaneously:
- You hold for 12-15+ years — long enough for mortgage principal paydown to outpace the renter's investment growth
- HOA fees stay below 5% annual increases — which requires a well-managed building with healthy reserves
- No major special assessments — which means you chose a building with 70%+ reserve funding
- Appreciation matches or exceeds 3%/year — which requires a desirable location in a growing market
- You don't need to sell in a down market — which isn't something you can control
When all five conditions are met, buying a condo breaks even with renting around year 12-15 and pulls ahead afterward. When any of them fail — which is common — the renter wins for the entire holding period.
What the Real Estate Industry Won't Say
Every rent-vs-buy calculator published by Zillow, Realtor.com, or a mortgage lender is designed to make buying look attractive. They do this by:
- Using 4-5% appreciation rates (historically accurate for houses, not condos)
- Ignoring HOA fee escalation
- Excluding special assessments
- Not modeling the opportunity cost of the down payment
- Using low estimates for selling costs
- Ignoring the tax changes from 2017 that made mortgage interest deductions less valuable (standard deduction of $14,600 means most condo owners don't itemize)
When you strip out these biases and run honest numbers, renting a comparable unit and investing the difference beats buying a condo in most scenarios under 12 years.
This Doesn't Mean Never Buy
There are valid reasons to buy a condo that aren't financial:
- You want stability and control over your living space
- You plan to stay 15+ years and the building is well-managed
- Rent in your market is rising so fast that even with HOA escalation, buying is cheaper within 5 years
- You're in a market where condos actually appreciate (rare, but they exist)
Just don't buy because someone told you rent is "throwing money away." Run your own numbers. Use your actual down payment, your actual HOA fee, your building's actual reserve funding percentage, and a realistic appreciation rate for condos in your market — not the national home price index that's dominated by single-family homes.
The math doesn't lie. It just doesn't get published by people who make money when you buy.
The Condo Trap runs this analysis for every major market and building type, with real HOA data and actual assessment histories. Get it on Amazon.