Most people don't think about curb appeal until they're about to sell. Then it's all they think about. The question is whether the way a house looks from the street actually changes what buyers pay, or whether it's just something agents like to say.
There's a real answer, and it comes from a study that measured it directly.
What the study found
In 2020, three researchers, Erik Johnson, Alan Tidwell and Sriram Villupuram, published "Valuing Curb Appeal" in The Journal of Real Estate Finance and Economics, a peer-reviewed academic journal. Instead of asking agents or buyers for their opinions, they used Google Street View photos of homes and trained a computer model to rate how each house looked from the street. Then they compared those ratings against what the homes actually sold for, controlling for size, age, location and the other things that normally drive price.
Three findings stand out:
- Curb appeal can account for up to 7% of a home's sale price. That figure combines how your own home looks with how the home across the street looks.
- Your own house counts about twice as much as your neighbor's. You can't control the house across the street. You can control yours.
- The premium grows when the market slows. When buyers have more choices and more time, first impressions carry more weight, not less.
On a home selling for $1,000,000, a few percentage points is tens of thousands of dollars. Even a small share of that can more than cover the cost of getting the exterior ready.
What the study does and doesn't tell you
It's worth being precise about what this research measured. The model rated the overall look of a home from the street: landscaping, exterior condition, how cared for the place appears. It didn't test window cleaning or pressure washing on their own, and it doesn't promise that any single service adds a set amount to your price.
What it does show is that buyers respond to what they see before they walk in the door, and that the response shows up in the price. A clean, well-kept exterior is one of the most direct ways to improve what they see, and one of the least expensive.
Where cleaning makes the biggest difference
If you're getting ready to list, these are the places where cleaning changes the first impression most, roughly in the order a buyer notices them.
Driveways, walkways and entries
The path to the front door is the first thing buyers walk on and the first thing they see in listing photos. Oil spots, tire marks and dark buildup on concrete make a home look older than it is. A rotary surface cleaner lifts that evenly, without the stripes a handheld wand leaves behind. See concrete pressure washing.
The walls themselves
Stucco and painted siding collect dirt, mildew and water stains, especially on shaded sides of the house. These surfaces need low-pressure soft washing, not high pressure, which can damage texture and paint. A clean wall reads as a well-maintained house. See house and roof soft washing.
Windows
Buyers look out the windows as much as at them. Clean glass makes rooms brighter in person and in photos, and streaked or hazy glass is one of those details people notice without knowing why the house feels a little tired. Near the coast, salt and marine layer film builds up faster than most people expect, so a home that was cleaned last spring may already need it again. See residential window cleaning.
Gutters
Gutters don't usually win over a buyer, but overflowing ones can lose one. Dark streaks down the fascia, plants growing out of a gutter or water stains below a downspout make an inspector and a buyer start asking questions. Cleaning the troughs and flushing the downspouts takes care of the problem and the evidence of it. See gutter cleaning.
Turf and outdoor living areas
Artificial turf that's flattened, dusty or holding pet odor undoes a lot of good work in a backyard. Grooming and sanitizing it brings back the look it had when it was installed. See turf cleaning.
Solar panels
Solar panels won't make or break the first impression, but buyers who ask about them will want to know the system is performing. Clean panels and a record of maintenance help answer that. See solar panel cleaning.
When to schedule it
If you're selling, the best time to clean the exterior is shortly before listing photos are taken. Photos are where most buyers form their first impression now, often before they ever drive by.
A few practical notes:
- Book the exterior before the photographer. Give yourself a few days of buffer in case of weather.
- Do concrete and walls before windows. Washing surfaces can splash glass, so windows go last.
- Plan around rain. Most of San Diego's rain falls between December and March. A storm right after a cleaning can leave mud splash on walks and walls, so watch the forecast.
If you're not selling
Most of the time, nobody is thinking about resale. Something just needs attention: the windows are dirty, the gutters are full, the driveway has seen better days. That's reason enough to take care of it.
The research is a useful reminder that the work isn't only about appearance. A home that's kept up looks cared for, holds up better and is easier to sell when the day comes. But the more immediate benefit is simpler: you get to enjoy it now.
Tell us what needs attention
Whether you're getting ready to list or you just want the place looking its best, tell us what needs attention and we'll take it from there. You can book one service on its own, no bundle required. Get a quick quote, or call or text us at 760.652.9919.
Written by
RadPad Home Service Pros
Locally owned exterior care across San Diego County and south Orange County: windows, solar, gutters, turf, surfaces and lighting, on one standard.
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