Houses do both at once. The land underneath almost always appreciates, while the physical structure depreciates from the day construction ends. In most markets the land gains outpace the structural decay, so the answer to whether houses appreciate or depreciate over time is that the total package usually gains value, even as the building itself is quietly wearing out. Since the late 1980s, national home prices have climbed more than 400 percent in nominal terms, though the inflation-adjusted gain is closer to 77 percent.1S&P Dow Jones Indices. S&P Cotality Case-Shiller Home Price Indices
Why Land Appreciates and the Building Depreciates
Land is finite. Nobody is manufacturing more of it in downtown Denver or coastal Florida, and as populations grow and demand concentrates in desirable places, land prices get bid up. The structure sitting on that land moves the opposite direction. It starts losing value the moment the last nail goes in.
Nationally, land accounts for roughly 40 percent of total residential property value. In high-demand coastal markets and dense urban cores, the share often climbs above 50 percent. In rural areas with abundant buildable acreage, it may only be 20 percent. Property tax assessments in most jurisdictions separate land from improvements precisely because the two components move in opposite directions.
This dynamic explains a pattern that surprises many buyers. A 70-year-old bungalow in a desirable neighborhood can sell for more than a nearly new house on a half-acre lot 40 miles outside town. The bungalow’s structure has depreciated heavily, but the land underneath has appreciated so much that the total still commands a premium. Investors who tear down aging homes and rebuild on the same lot are making this bet explicitly, paying for the land and treating the existing structure as nearly worthless.
How the Structure Loses Value
Physical wear runs on a fairly predictable clock. Roofing materials last 15 to 25 years depending on the type. Furnaces, air conditioners, and heat pumps run 15 to 30 years before needing replacement. Water heaters give you 10 to 25 years. Copper or cast iron plumbing can last 40 to 80 years, though the fixtures connected to them fail far sooner.2Certified Commercial Property Inspectors Association. Estimated Useful Life Chart for Building Systems and Components Each year those components age, the remaining useful life shrinks, and so does that portion of the home’s value.
Wear isn’t the only kind of structural decline. A home can also lose value through functional obsolescence, meaning the design no longer matches what buyers want. A house with only one bathroom, no garage, a galley kitchen closed off from the living room, or inadequate electrical capacity for modern appliances is functionally obsolete regardless of how well it has been maintained. Fixing that kind of depreciation often costs more than fixing physical wear, because it may require gutting the floor plan rather than replacing a single component.
The tax code recognizes this reality. Under the Modified Accelerated Cost Recovery System, residential rental buildings are depreciated over 27.5 years using the straight-line method, and the schedule applies only to the structure, not the land.3Internal Revenue Service. Publication 527 (2025), Residential Rental Property The IRS treats the building as a wasting asset that will eventually need to be substantially rebuilt or replaced, which is a fairly accurate description of what actually happens.
What Decides How Fast Your Home Appreciates
National trends set the baseline, but your home’s appreciation rate depends far more on what’s happening within a few miles of your property. Neighborhoods near top-rated school districts attract a steady stream of families willing to pay a premium. Proximity to major employers or reliable public transit adds another layer of demand. These local factors can push a home’s value up even when the national market is flat.
Supply constraints are equally powerful. When zoning rules, geographic boundaries like water or mountains, or historic preservation requirements block new construction, existing homes become scarce and prices rise. The United States faces a cumulative housing deficit estimated at more than four million homes, driven by years of underbuilding relative to household formation. That structural shortage has contributed to sustained price growth, particularly in the Northeast and West Coast where the gap is most severe.
Mortgage rates are the single biggest lever at the national level. When the Federal Reserve raises or lowers the federal funds rate, longer-term rates tend to follow, though not in lockstep. Since the late 1980s, the average gap between the Fed’s target rate and the 30-year mortgage rate has been about three percentage points. Lower mortgage rates expand what buyers can afford, pulling more people into the market and pushing prices up. Higher rates cool demand and slow appreciation.
Inflation plays a subtler role. When lumber, concrete, copper, and labor costs rise, building a new home gets more expensive, and that higher replacement cost puts a floor under the value of existing homes. Buyers compare an existing house against the cost of building from scratch, and when scratch gets more expensive, so does existing.
How Maintenance and Renovation Change the Trajectory
Structural depreciation isn’t inevitable in practice. Consistent maintenance slows the decline, and targeted renovations can add value. Fannie Mae recommends budgeting one to four percent of your home’s value each year for maintenance and repairs. For a newer home, one percent is reasonable. For a home over 30 years old, lean toward three or four percent, since major systems start failing around that age. On a $400,000 home, that’s anywhere from $4,000 to $16,000 a year.4Fannie Mae. How to Build Your Maintenance and Repair Budget
Not every renovation pays for itself. According to the 2025 Cost vs. Value Report, a midrange minor kitchen remodel recoups about 113 percent of its cost at resale, making it one of the few projects that actually earns money. A major kitchen overhaul, by contrast, recovers only about 51 percent. Asphalt roof replacement returns roughly 68 percent. The pattern is clear. Targeted, modest updates outperform gut renovations for pure return. Massive remodels may make a home more enjoyable to live in, but they rarely pay for themselves at resale.
The IRS distinguishes between a repair and a capital improvement, and it matters when you sell. A project counts as a capital improvement if it involves a material addition or enlargement, materially increases the property’s capacity or efficiency, or adapts it to a new use.5Internal Revenue Service. Tangible Property Regulations – Frequently Asked Questions Replacing a broken window is a repair. Adding a bathroom or replacing the entire roof is a capital improvement. Capital improvements increase your cost basis in the property, which reduces your taxable gain when you sell.
When Homes Actually Lose Total Value
The long-term trend favors appreciation, but certain conditions push a property’s total value down, land included. Neighborhood decline from rising crime, school district deterioration, or the closure of a major local employer can sap demand faster than any building deterioration. Environmental contamination, flood zone reclassification, or nearby industrial development can permanently impair land value in ways no renovation will offset.
Broader market crashes are a different kind of risk. During the 2008 crisis, home values in the hardest-hit markets fell 40 to 60 percent, and owners who needed to sell during that window locked in real losses. The eventual recovery didn’t help someone who was foreclosed on in 2010. Time horizon is the critical variable. Homeowners who can hold through a downturn have historically come out ahead, but that requires both a financial cushion and the flexibility to wait.
Over-improvement is a quieter trap. Pouring $200,000 into a top-of-the-line kitchen and spa bathroom in a neighborhood where homes sell for $300,000 doesn’t create a $500,000 house. It creates a $320,000 house with $200,000 in sunk renovation costs. Comparable sales in the area set the ceiling on what your home can sell for, and no amount of Italian marble changes the neighborhood.
What You Actually Keep After Selling
A home might appreciate 50 percent over a decade on paper, but what you pocket depends on what you spent along the way. Agent commissions typically run five to six percent of the sale price. Closing costs, including title insurance, transfer taxes, and escrow fees, add another one to three percent depending on location. On a $500,000 sale, those transaction costs alone can consume $30,000 to $45,000 of your gain before taxes.
Ongoing ownership costs eat further into the return. Property taxes vary dramatically by location, with effective rates ranging from under 0.3 percent to over 2 percent of assessed value. Homeowners insurance runs from a few hundred dollars to several thousand per year depending on state and risk profile. Add the one to four percent annual maintenance budget, and carrying costs absorb a meaningful share of the annual appreciation.
A rough illustration. You buy a home for $350,000, and it appreciates at the national average of about four percent per year nominally. After ten years, it’s worth roughly $518,000, a gain of $168,000. Over that decade you’ve likely spent $35,000 to $140,000 on maintenance, $35,000 to $70,000 in property taxes, and perhaps $25,000 to $50,000 on insurance. Selling costs take another $40,000. The net gain shrinks quickly, and after adjusting for inflation, the real return is more modest still.
The tax side is friendlier than most other investments. Federal law excludes up to $250,000 in gain from the sale of a principal residence, or $500,000 for married couples filing jointly.6Office of the Law Revision Counsel. 26 USC 121 – Exclusion of Gain From Sale of Principal Residence To qualify, you must have owned and used the home as your primary residence for at least two of the five years before the sale. The exclusion is available every time you sell a qualifying home, with no lifetime cap. Gains above the threshold are taxed as long-term capital gains, assuming you held the property for more than a year: zero percent for lower-income filers, 15 percent for most middle- and upper-income filers, and 20 percent for the highest earners in 2026. Your adjusted cost basis starts with what you paid, rises with capital improvements, and falls with any depreciation claimed.
Homeownership builds wealth over time. Treating the gross appreciation number as profit is a mistake people make constantly.