The key takeaways from this analysis
- Monthly cost reality: Renting a comparable 2BR/2BA runs ~$3,500/mo. Owning the same $1M home with 20% down costs ~$7,223/mo all-in — roughly double.
- The correct comparison: Both paths start with the same cash. Deploy $200k into the home or into an index fund — the owner's leveraged equity leads the renter's portfolio by $215k at 5 years and $573k at 10.
- Automatic savings: A mortgage forces you to build equity every single month, whether you feel like it or not. Most renters never actually invest the difference.
- Equity is real wealth: By year 10, a 20%-down owner has paid down ~$122k in principal and captured ~$791k in appreciation — all from one $200k starting investment.
- Leverage multiplies returns: A 6% rise on a $1M home = $60k gain on $200k down = 30% cash-on-cash. An index fund at 8% returns 8% on the same $200k.
- The duplex is the best play: Same $1M property, 5% down ($50k), tenant pays $2k/mo — your net cost drops to $6,928/mo and your $50k builds $878k in equity by year 10.
Here's a question we get almost every week: "Should I keep renting, or is it finally time to buy?" It usually comes with a knot of anxiety — the sense that renting is throwing money away, that prices only go up, that you're falling behind. So we built the real model, with today's rates and a real rental comp, and committed to letting the numbers land wherever they land.
The answer is clearer than you might expect. Let's walk through it.
The setup: same $200,000. Two paths.
Our subject is a $1,000,000 home — a 2-bed, 2-bath in the kind of neighborhoods our clients are actively shopping right now: West Adams, Culver City, and South LA. Real bones, real architecture, real momentum.
The only question is what to do with the same $200,000 in cash:
- Owner: puts $200,000 down on the $1M home (20% down). Pays all-in carrying costs from income each month.
- Renter: invests the same $200,000 in a broad index fund at ~8% annually — then leaves it alone. Pays rent from income each month.
This is the correct comparison. Both people deploy the same capital at the start. After that, each pays their own housing costs from income — rent on one side, mortgage + taxes + insurance + maintenance on the other. Nobody is banking the "difference" every month and reinvesting it, because in the real world that money goes toward rent.
The monthly reality
A comparable 2-bed, 2-bath in West Adams, Culver City, or South LA rents for roughly $3,500 a month today. Here's what owning the same caliber property at 20% down actually costs, with everything included:
Renting is the cheapest month-to-month. But the owner is building equity with every payment; the renter is building none. The duplex splits the difference — costs more than renting but the tenant chips in $2k, and you own a $1M appreciating asset with only $50k down.
SFR all-in: P&I ($5,057) + property tax 1.25% ($1,042) + insurance ($292) + maintenance reserve 1% ($833). Duplex net: same components on $950k loan + PMI ($673) minus $2k tenant rent. Rate ~6.5% 30-yr fixed, May 2026.
So the SFR owner spends about $7,200 a month, the duplex owner nets $6,928 after the tenant's contribution, and the renter pays $3,500. The monthly gap is real — and it doesn't disappear. What changes the calculus is what both parties do with their capital and what happens to it over time.
The correct comparison: same $200k, different destination
Now for the part most rent-vs-own analyses get wrong. They assume the renter takes every dollar they save versus the owner and invests it. That's not realistic — that money pays rent. The honest apples-to-apples is simpler: both parties start with $200,000 and deploy it on day one. The owner puts it into the home; the renter puts it into the index fund. Then both pay their respective housing costs from their income and go about their lives.
Here's where $200,000 ends up under each path at 5, 7, and 10 years:
The owner wins at every horizon — and the gap widens sharply with time. By year 10 the owner has built $1,005,188 in equity (net of selling costs) versus the renter’s $431,785 portfolio. That’s a $573,000 advantage from the same $200,000 starting point.
Owner equity net of ~6% selling costs; home appreciates 6%/yr, 30-yr fixed at 6.5%. Renter portfolio = $200k compounding at 8%/yr, no additions. Illustrative; not a forecast. May 2026.
The renter's index fund grows well — $200,000 at 8% for 10 years becomes about $431,000. That's a strong return. But the owner's equity at the same 10 years is over $1,000,000 — more than double. The reason is leverage, and it's worth understanding exactly how it works.
Why the owner wins: the leverage no one else can offer you
When you invest $200,000 in an index fund at 8%, you made 8% on $200,000. Simple. But when you put $200,000 down on a $1,000,000 home and it appreciates 6% in a year, you didn't make 6%. The entire asset gained $60,000 — and you controlled it with just $200,000. That's a 30% return on your cash from appreciation alone, in year one. The bank funded the rest at a fixed rate they can never raise.
A 6% rise on a $1M home is $60,000. Against your $200k down payment, that’s a 30% first-year return on equity. An index fund earning 8% on the same cash returns 8%. Leverage is why real estate compounds wealth so fast — and why Warren Buffett calls a long fixed-rate mortgage one of the best instruments available to ordinary households.
Cash-on-cash from appreciation only ($60k on $1M asset) before costs and taxes. Leverage amplifies losses as well as gains. Illustrative. May 2026.
Warren Buffett has called the long fixed-rate mortgage one of the best financial instruments a household can access. The loan is fixed while inflation quietly erodes the real value of the debt. If rates fall, you refinance. If rates rise, you keep your cheap payment and laugh. The bank cannot call the loan if the market dips. No margin call. No forced liquidation. There is no comparable instrument that lets an ordinary person deploy this kind of leverage on a real asset with this degree of downside protection.
Where your equity actually comes from
Every mortgage payment has two jobs: paying interest to the bank, and paying down the loan balance. That second piece — principal reduction — is equity you're building whether you think about it or not. On top of that, your home's value is rising. Watch how those two forces stack up year by year:
Three layers build your equity simultaneously: your original $200k down payment, ~$122k in principal you pay down over 10 years, and ~$791k in appreciation. By year 10 you have $1,112,639 in gross equity from a single $200k starting investment.
Home appreciates 6%/yr from $1M. Principal paydown from 30-yr fixed at 6.5% on $800k. Figures gross of selling costs. Illustrative. May 2026.
In year one alone you pay down nearly $9,000 in principal — money that stays in your pocket as equity, not the bank's. By year 10 that's $121,791 in principal paydown, on top of the appreciation. The index fund investor has no equivalent of this: they're earning returns on their capital, but they're building nothing in the real world that someone else is partially funding.
Here's the behavioral truth most financial analyses skip: almost nobody actually invests the difference. The idea sounds rational — rent, save the gap, put it in an index fund each month. In practice, that money goes toward life — a car, travel, restaurant bills, the things that happen when cash isn't committed elsewhere. A mortgage removes the choice. Every payment automatically builds equity. For most people, that forced discipline is worth more than the theoretical return on the difference — because the "invest the difference" path only works if you actually do it, every month, for ten years.
The other quiet advantage: your payment is frozen. Rent isn't.
There's a second force working in the owner's favor that doesn't show up clearly in year one — but compounds powerfully over time. The biggest piece of your mortgage payment (principal and interest) is locked for 30 years. Rent, meanwhile, climbs about 3% a year. Watch what that does:
Your $3,500 rent grows to nearly $4,700/mo by year 10 and keeps going. Your P&I stays frozen at $5,057 — the same check you wrote on day one. Every year the gap between renting and owning quietly closes in the owner’s favor.
Rent grows 3%/yr from $3,500. P&I fixed at 6.5% on $800k loan. Taxes, insurance & maintenance drift modestly. Illustrative. May 2026.
In year one, owning costs significantly more. By year 20, the renter is paying a housing bill that has grown every single year while the owner's core payment hasn't moved since closing day. Inflation is the renter's relentless adversary and the homeowner's quiet ally.
The bonus move: buy a duplex, let a tenant pay your mortgage
Everything above assumed you buy a home and live in all of it. Now let's look at what happens when you buy a duplex, live in one unit, and rent the other for $2,000 a month. Same $1,000,000 purchase price — but because it's owner-occupied, you can put as little as 5% down: just $50,000. Same question as before: what does that $50,000 do over time?
Your gross carry is $8,928/mo, but the tenant immediately offsets $2,000 of that — dropping your net effective cost to $6,928/mo. As rents rise 3%/yr, that offset grows while your mortgage stays frozen.
P&I on $950k at 6.5% ($6,005) + property tax 1.25% ($1,042) + duplex insurance 0.45% ($375) + maintenance 1% ($833) + PMI 0.85% ($673). Tenant rent $2,000/mo year 1. Figures approximate, May 2026.
Your net effective housing cost is $6,928 a month — real money, and more than renting. But look at what you deployed to get there: $50,000. The 20%-down single-family buyer put $200,000 in. You're controlling the same $1,000,000 asset with a quarter of the cash.
Now here's the part that makes the duplex the most powerful move in this entire analysis. Let's run the same apples-to-apples comparison — $50,000 into the duplex versus $50,000 into an index fund at 8% — and add the 20%-down single-family buyer for context:
The duplex owner puts in $50,000 and builds $878,024 in equity by year 10. The renter puts in the same $50,000 and ends with $107,946. That’s a $770,000 advantage — from a $50,000 starting point. The 20% SFR owner builds more equity ($1,005,188) but deployed $200,000 to do it. On a return-on-invested-cash basis, the duplex wins.
Duplex: $50k down (5%), $1M property, 6% appreciation, 6.5% rate. SFR: $200k down (20%), same property and rate. Renter: $50k compounding at 8%/yr, no additions. All equity figures net of ~6% selling costs. Illustrative; not a forecast. May 2026.
The duplex owner builds $878,024 in equity by year 10 on a $50,000 investment. The renter with the same $50,000 in the market ends with $107,946. That is a $770,000 gap from the same starting capital. Meanwhile the tenant has paid you roughly $275,000 in rent over those ten years, covering a substantial portion of your carrying costs.
With 5% down on a duplex, your $50,000 is controlling a $1,000,000 appreciating asset. A tenant covers $2,000 of your monthly cost every single month — and as rent grows 3% a year, that offset increases while your mortgage payment stays frozen. You're living in the property, building equity on the full asset, and a stranger is funding a significant portion of it. No other single move puts this much leverage and income in the hands of a first-time or entry-level buyer.
The three paths — side by side at 10 years
Here's the full picture in one view. Three people, same neighborhood, same starting point. Where does each stand a decade later?
At 10 years, owning either way beats holding an index fund by a significant margin. The SFR owner ($1,005k) deployed $200k to get there. The duplex owner ($878k) deployed just $50k — a 4× more efficient use of capital. The renter ($431k) has a solid portfolio but no home, no forced savings history, and rent that keeps climbing.
All owner figures net of ~6% selling costs. Renter deployed $200k (fair comparison vs SFR). Duplex owner deployed $50k. Home appreciates 6%/yr. Index fund at 8%/yr. Illustrative; not a forecast. May 2026.
So what's the smart move?
The math here is not a coin flip. With the same starting capital, the homeowner's leveraged equity significantly outpaces the renter's stock portfolio at every time horizon we modeled. The discipline of a mortgage, the freeze on your biggest expense while rents climb, the automatic principal paydown, and the leverage effect on an appreciating asset all compound in the owner's favor in ways the index fund can't match from the same base.
Owning a home is not the only path to wealth. A disciplined investor can build real assets. But for most people — who won't actually invest the difference every month for ten years, because life gets in the way — owning wins because it makes the right financial behavior automatic.
The wrong question is "rent or own?" in the abstract. The right question is: what does the right price, right neighborhood, and right structure look like for your cash and timeline? Run your own numbers in our mortgage calculator →
Frequently asked questions
Is it cheaper to rent or buy in Los Angeles right now?
Month to month, renting is cheaper — a comparable 2BR/2BA in West Adams or Culver City runs ~$3,500 versus ~$7,200 all-in to own a $1M home with 20% down. But the right comparison is what happens to the same starting capital over 5, 7, and 10 years — and there the homeowner wins by a wide margin.
What does PMI stand for, and do I have to pay it?
PMI stands for Private Mortgage Insurance. Lenders require it when your down payment is less than 20% of the purchase price. It protects the lender (not you) if you default. On a $950,000 loan with 5% down, PMI runs ~$673/month. It automatically drops off once your loan balance reaches 80% of the original value — typically around year 7–10 at a 6.5% rate.
What's the correct way to compare renting versus buying?
Deploy the same starting capital at the outset: the down payment goes either into the home or into an index fund. Both parties pay housing costs from income. The renter's portfolio compounds on $200k; the owner's equity compounds via leverage on $1,000,000. At 6% home appreciation and 8% index return, the owner leads by $215k at 5 years, $347k at 7 years, and $573k at 10 years.
Why is a fixed-rate mortgage considered such powerful leverage?
A 30-year fixed mortgage lets you control a full-priced appreciating asset at a locked rate the lender can never raise. A 6% gain on a $1,000,000 home is $60,000 — a 30% return on a $200,000 down payment. You can refinance if rates fall, keep your payment if they rise, and inflation erodes the real value of the debt over time.
What is house hacking and does it work in Los Angeles?
House hacking means buying a duplex, living in one unit, and renting the other — often with just 5% down. On a $1,000,000 duplex at 5% down ($50,000 in), the gross carry is about $8,928/month. A tenant paying $2,000/month drops your net effective cost to $6,928/month. Over 10 years that $50,000 builds ~$878,000 in equity versus ~$108,000 in an index fund — a $770,000 advantage from the same capital.
This article is for general informational and educational purposes only and is not financial, investment, tax, or legal advice. All figures are approximate and illustrative as of May 2026. Appreciation, index returns, and rents are not guaranteed. Leverage magnifies losses as well as gains. Consult your own financial, tax, and legal advisors before making any decision.
