Harvard's housing researchers reported this summer that the median American home is now 44 years old, the oldest on record and up from 28 years in 1993. The coverage that followed focused on what homeowners spend keeping those houses running. Sellers meet that same number in a different place: the inspection report.

We pulled every detached home that closed across the seven counties in the past 30 days and sorted it by the year the house was built.

Year Built	Sales	Median Price
1959 and earlier	481	$575,000
1960–1979	545	$606,000
1980–1994	380	$685,500
1995–2009	583	$720,000
2010 and newer	628	$702,385

Homes built before 1980 accounted for 1,026 of the 2,617 detached sales, right at 39% of the market. Those two vintages also carried the lowest medians, coming in $80,000 to $145,000 under everything built since. In Metro Denver, the affordable way into a detached house is usually an older one.

What Age Actually Costs

That's also the vintage where the most money goes toward things you don't get to choose. Among homes built before 1960, replacement projects like roofing, siding, windows, and HVAC made up 39% of owner spending in 2023. For homes built since 2010, those categories were 24%. Owners of the older homes spent about $6,000 that year against roughly $4,500 for the newer ones.

Age and condition aren't the same thing, and Harvard says so directly. A 1955 ranch that's been reinvested in steadily can be in better shape than a neglected 2005 build. The question worth asking is what's original, what's been replaced, and what's close to the end of its service life.

The Twenty-Year Mark

None of this starts at fifty years. Harvard found that repair and improvement spending starts climbing once a home passes roughly twenty years, then stays elevated as major components cycle through.

A house built in 2004 doesn't read as old to anyone. It's also two decades into the life of everything that came with it. The roof is original or on its first replacement depending on material, the furnace may never have been touched, the water heater is past due, and the windows have twenty years of seals behind them. Nearly 600 detached homes built between 1995 and 2009 sold here last month.

Start With Your Net

Before deciding what to fix, find out what you'd walk away with. Take a realistic sale price, subtract the mortgage payoff, commissions, closing costs, and prorated taxes. Then run it again $15,000 lower, and again $30,000 lower.

What you think of as a $650,000 asset might be a transaction with $12,000 of room in it. Those two situations call for very different decisions about the furnace.

Sort Repairs Into Three Piles

Things that have to be fixed. Anything that blocks financing, creates a safety issue, belongs on your disclosures, or is obvious enough to turn buyers around in the driveway. These deserve real money.

Things that improve marketability. Paint, flooring, landscaping, lighting, cleaning. Ask whether $5,000 spent here comes back as more than $5,000 in price or in avoided negotiation. Often it won't.

Things that are simply old. A 15-year-old furnace that runs fine is not a defect. An inspector writing that it's near the end of its expected service life doesn't mean you replace it for the next owner. This is the pile where sellers spend money they're going to need later.

Keep An Inspection Reserve

Inspectors will find something. Plan on it. If you have $20,000 of flexibility and spend all of it getting the house ready, there's nothing left for the request that's coming.

Split it instead: $8,000 into pre-list work, $7,000 held back for the inspection, $5,000 untouched. Now the $6,000 ask is a line item you already planned for. Some sellers never touch the reserve at all.

Let The Price Reflect The Condition

The $50,000 you've put into the house over the years doesn't set what it's worth today. Consider two versions of the same sale.

List at $650,000 with $15,000 of deferred maintenance a buyer can see. It sells at $625,000, then you hand back $10,000 after the inspection. Or list at $625,000, where the price already accounts for what the buyer is walking into, and close near it with little to negotiate. The second one has a lower headline number and puts more in your pocket.

Set Your Ceiling Before The Report Arrives

Decide now what you could contribute if a buyer came back asking for $10,000. Maybe the answer is nothing. Maybe it's $7,500 and not a dollar more. Either answer is worth having, and both are easier to reach before there's a report on the table and a closing date on the calendar.

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Sources: REcolorado MLS, seven-county detached search, closed sales July 28 – August 27, 2026 · Harvard Joint Center for Housing Studies, "Many Owners Cannot Afford to Maintain Aging Homes," July 2026, using the 2023 American Housing Survey · National Real Estate Brief, August 26, 2026. MLS figures are current-month closings; Harvard figures reflect 2023 survey data.