How Home Equity Works and Grows

By
Tim Clarke
February 24, 2026
7 min read
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How Home Equity Works and Grows

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The 30-second version

  • Equity is what you own outright. It's your home's current market value minus everything you still owe on it.
  • Two forces build it. Every mortgage payment chips away at your principal, and rising home values in the Triangle add appreciation on top.
  • The math is one line. Value minus loan balance equals equity. Loan-to-value (LTV) is the same numbers flipped: what you owe divided by what it's worth.
  • Time does the heavy lifting. Early payments lean toward interest, later ones toward principal, so equity growth speeds up the longer you stay.

Equity is the quietest kind of money you own. You don't see it in a bank account, you can't swipe a card against it at the grocery store, and most homeowners I meet in the Triangle underestimate how much of it they've built. In my 17+ years working across Raleigh, Durham, and the towns around them, I've watched families sit on six figures of equity without knowing the number. This is the foundational piece: what equity is, how to calculate it, and how it grows. Once you know your number, the next question is what to do with it, and I cover the ways to access it in ways to tap your home equity.

Think of your home as two things stacked on top of each other. There's the part the bank still has a claim on, and there's the part that's genuinely yours. That second part is equity, and it gets bigger two ways at once.

What home equity actually is

Home equity is the difference between your home's current market value and the amount you still owe on your mortgage. It's the portion of the property you truly own. If your home in Cary is worth $300,000 and you owe $200,000 on the loan, your equity is $100,000. That's it. No trick to it.

The reason it matters is that equity is real net worth. It's not a projection or a maybe. It's the money that would land in your pocket if you sold today and paid off the loan, minus selling costs. As you pay down the mortgage and as values move, that stake grows.

Equity is the part of your home that's genuinely yours. Everything else still belongs to the lender until you pay it off.

How to calculate your equity

You need two numbers. First, your home's current market value. An online estimate from a site like Zillow or Redfin gets you in the neighborhood, but those tools miss the local nuance, so a real agent's read on your street is more accurate. Second, your mortgage balance, which sits on your most recent statement or in your lender's online portal. Subtract the balance from the value and you have your equity.

The two forces that build equity

Equity grows through two mechanisms working at the same time: paying down your loan and your home gaining value. One you control with your checkbook. The other the market largely decides for you.

Source of equityHow it worksYour control
Principal paydownEach mortgage payment reduces the balance you owe. That lowers the loan side of the equation, so your ownership stake rises.High. You choose the loan, the term, and whether to pay extra.
AppreciationWhen your home's market value rises, the gap between value and loan balance widens. In Raleigh-Durham, steady demand has pushed values up over time.Low to moderate. The market sets it, though upkeep protects it.

Principal paydown: the part you control

Every payment you send splits between interest and principal. The principal portion is the piece that builds equity, because it shrinks what you owe. In the early years of a 30-year loan, most of your payment goes to interest and only a sliver hits principal. That flips over time. The longer you hold the loan, the faster the principal side climbs, and the quicker your equity stacks up.

Appreciation: the part the market gives you

Appreciation is the increase in your home's market value. It's driven by demand, local job growth, and how many homes are for sale versus how many buyers want them. The Triangle has drawn steady demand for years, and rising values have added equity for owners here on top of whatever they've paid down. Values move in cycles, so appreciation isn't guaranteed year to year, but over a long hold it has been a real force in this market.

Understanding loan-to-value (LTV)

Loan-to-value is the same relationship as equity, viewed from the lender's side. LTV is what you owe divided by what your home is worth, expressed as a percentage. On that $300,000 Cary home with a $200,000 balance, your LTV is about 67 percent, which means your equity is the other 33 percent. Lower LTV means more equity and less risk for a lender.

You'll run into LTV any time you borrow against your home, because lenders cap how much of your value you can tap. That's a topic for the borrowing tools, which I break down in ways to tap your home equity. For now, just know that watching your LTV fall over the years is another way to see your equity growing.

Thinking about selling? I’ll tell you what your property is really worth — no obligation.

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How equity grows over time

Equity growth compounds in a way that rewards patience. Two things accelerate as the years pass. Your principal payments get larger relative to interest, so you're building ownership faster each year you stay. And if values rise, appreciation stacks on top of that paydown. A homeowner who bought in Durham a decade ago and simply made every payment on time has usually built substantial equity from both directions without lifting a finger beyond the monthly payment.

That's why equity is the foundation of building long-term net worth through real estate, which I get into in building wealth through your property. Understanding the number is step one. Growing it, and eventually using it, comes after.

  1. Find your home's current value. Start with an online estimate, then get a local agent's read for a number that reflects your actual street and recent nearby sales.
  2. Pull your mortgage balance. Check your latest statement or your lender's portal for the exact amount you still owe.
  3. Subtract to get your equity. Value minus balance is your equity today. Divide the balance by the value for your LTV percentage.
  4. Keep making every payment. Each one moves principal off the loan, and the principal share grows the longer you hold, so equity builds faster over time.
  5. Protect your value. Keep the home maintained. Deferred upkeep drags down what an appraiser and a buyer will pay, which quietly erodes your equity.
  6. Recheck once a year. Values move in this market, so run the numbers annually to know exactly where your ownership stake stands.

Once you know your equity number, you have options. My team and I can give you an accurate read on your Triangle home's current value, which is the number that makes the whole calculation real. When you're ready to put that equity to work, learn the borrowing tools in ways to tap your home equity or the bigger-picture strategy in building wealth through your property.

Frequently Asked Questions

How do I calculate my home equity?
What builds home equity?
What is loan-to-value (LTV)?
Why does equity grow faster the longer I own?
Do home improvements affect my equity?

Thinking about selling? I’ll tell you what your property is really worth — no obligation.

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Tim M. Clarke

About the author

18 years as a Realtor in the Research Triangle, Tim seeks to transform the Raleigh-Durham real estate scene through a progressive, people-centered approach prioritizing trust & transparency.

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