Noise Pollution and Property Values

photo by Luis Miguel Bugallo Sánchez

Realtor.com quoted me in What Is Noise Pollution and How Does It Affect Property Values? It opens,

When it comes to a home’s value (and your sanity), noise pollution can be a major downer. But what is noise pollution exactly? Most people have different definitions of what noise pollution actually is—anything from sirens to a barking dog, or the noise of traffic on the street outside.

While outside noise isn’t totally escapable (even the prairie has ambient noise), home buyers will want to be on the lookout for excessive noise pollution, because it could affect a property’s value. After all, you don’t want to live in (or have to eventually unload) a place that requires a lifetime supply of earplugs.

First, let’s define what noise pollution actually means.Re

What is noise pollution?

In defining noise pollution, there are several variables in the mix.

“Noise pollution is basically any noise that you don’t like, but I guess we would define it as noise that most people generally don’t like,” says Brooklyn Law School Professor David Reiss, research director for the Center for Urban Business Entrepreneurship. “When governments regulate noise, however, it is usually based on how loud a noise is.”

For example, Reiss explains that according to A Guide to New York City’s Noise Code, in that city, “Noise that exceeds the ambient sound level by more than 10 decibels (dB) as measured from 15 feet from the source as measured from inside any property or on a public street is prohibited.”

Of course, the ambient sound level in NYC is considerably louder than in a rural area.

How to measure noise pollution near a home

Although decibels are used to measure the intensity of a sound, there are more accurate ways to identify noise pollution around a particular house. When it comes to getting ballpark figures for typical noise levels, Tom Davies, Co-Founder and Manager of the property buying company Accelerate Homes, suggests that most buyers figure out the day-night average sound level (Ldn) or the day-evening-night average sound level (Lden), which are measurements that can help assess the impact that road, rail, air, and general industry has on the local population. Either of these measurements give a potential buyer a much more accurate assessment of overall noise pollution near their home. To measure these levels, get a regular decibel meter, take hourly readings, and plug those numbers into this online noise calculator.

You can also check this interactive national transportation map created by the U.S. Bureau of Transportation Statistics to get a general idea of noise pollution levels created primarily by interstate highways and airports in your area. Just type in your address (or the address of any home you’re considering) and get a general reading. Red means loud—think vacuum cleaner (like 60dB-80 dB), and purple means even louder, like the constant sound of a garbage disposal (80 dB and up).

Identifying noise pollution culprits

It’s not always easy to figure out what’s making all the noise, but it is possible.

“While some of the main factors could be easily spotted—like the proximity of highways, stadiums, airports, train, and bus stations—other factors like specialized traffic (regular truck deliveries or rubbish removal), or the presence of neighbors with loud dogs, are far less likely to be spotted at first sight,” says Davies. The only way to get to the bottom of it is to talk to the neighbors.

Reiss also suggests taking it a step further.

“Visit at different times of the day. For example, if there is a bar across the street, drive by on a Saturday night,” he says. “Also, ask local government officials, like community board district managers, about noise complaints.” Basically, it’s up to you to do your due diligence on sound.

How noise pollution affects property prices

High noise levels don’t automatically correlate with lower prices, Reiss says. Some of the most expensive homes in New York City are located in midtown Manhattan, a busy area that’s home to the theater district, the tourist magnet Times Square, and many major corporate offices.

“But within a certain market, there will be those who value quietness and those who value being in the middle of the action,” he says.

To get a true reading on how noise pollution will affect the value of a property, “you would need to distinguish short-term noise—like a neighboring construction site—from permanent noise—like from a neighboring firehouse,” says Reiss.

Craziest Real Estate Windfalls

"Le Voyage dans la lune" by Georges Méliès - Roger-Viollet

Realtor.com quoted me in A Brief History of Crazy Real Estate Windfalls. It opens,

Real estate is one of those things where it’s hard to differentiate between a once-in-a-lifetime deal or an epic bomb without the benefit of hindsight. Want proof? Let’s take an invigorating jog down memory lane and view a few of the land swaps that are considered the most lopsided in history—windfalls for one side, colossal blunders on the other. Let’s crack open the history books!

Proof that Portugal needs better maps

The historical highlights: In the 15th century for the Treaty of Tordesillas, global superpowers Portugal and Spain sat down with a map of the world (as they knew it in the 1400s) and drew a line down the middle. Portugal got everything on the left, Spain on the right. Even Steven, right? Not quite. Once they decided to actually look at their new “empire,” Portugal found it basically had nothing (well, besides Brazil), while Spain had pretty much the entire world (you know, Europe, Asia, Russia…).

It taught Portugal a harsh lesson: Approaching land deals the way the kids in “Family Circus” deal with sharing toys is not a viable global expansion strategy.

Real estate updateGranted, Portugal botched this deal at the table, but it’s not quite as bad as it sounds. According to David Reiss, a professor at Brooklyn Law School and research director for the Center for Urban Business Entrepreneurship, the treaty was “heavily modified afterward” to give Portugal more land to the west, including control over most of the Indian Ocean.

Still, in the end, no one won: Both empires eventually shrank back to the size you see today. If Spain won anything, it’s the language war: Most of Central America speaks Spanish, while only Brazil parlays in Portuguese.

America goes through a major growth spurt

The historical highlights: In 1803, America made its historic Louisiana purchase, buying 828,000 square miles of land from France for $15 million—roughly the catering budget of an “Avengers” flick today. That territory gave the fledgling nation a hell of a growth spurt, adding land that would become 15 Midwestern states from Arkansas to, of course, Louisiana.

Real estate update: It was a lot of land, and it cost a lot at the time. But it was totally worth it. “You got New Orleans, so right there it was a good deal,” says Reiss. “If you look at the home sales in New Orleans today, $15 million is the price of just the top four most expensive houses combined.”

The Alaskan ‘oil rush’

The historical highlights: In 1856, Russia negotiated with U.S. Secretary of State William Seward to sell Alaska for about 2 cents per acre, or $7.2 million. The purchase was derided, and the American people quickly dubbed Alaska “Seward’s Folly.”

Real estate update: Most people think that the measly $7 mill we spent on Alaska is pocket change compared to the gushing vats of cash funneling into the U.S. through the Alaska oil pipeline, right? Not exactly.

“We think of Alaska and its pipeline, and we think it’s a great deal,” says Reiss. “But economists have deduced that the pipeline earns the government less than it costs to govern Alaska, so it’s a net loss. Calling it ‘Seward’s Folly’ makes sense.”

$24 for … Manhattan?

The historical highlights: It’s one of the oldest stories in our history—Savvy Dutch settlers, preying on the naiveté of the Canarsie Indians, bought all of what would become Manhattan for $24, less than the price of a sweater from a Times Square Forever 21.

Real estate update: True, New York City is estimated to be worth $802.4 billion today, and Manhattan is its busiest hub. However, before you express outrage about those poor Indians, consider this: It was the Dutch who got conned. You see, the Canarsie Indians who brokered the deal didn’t live in Manhattan. Sure, they’d hop over there to party with the Manhattoes tribe, but it wasn’t their home and they certainly had no right to sell.

“The common story is that the Europeans swindled the natives,” says Reiss. “But it does look like the other way around.” (The Manhattoes, however, are another story.)

*     *     *

Man sells the moon

The historical highlights: In 1967, the United Nation Outer Space Treaty stated in regard to our moon: “No nation by appropriation shall have sovereignty or control over any of the satellite bodies.” In 1980, a Nevada resident named Dennis Hope came to the conclusion that the treaty forbade nations from owning the moon but not individuals. So he wrote a letter to the U.N. saying he was taking ownership and that it should contact him if it had any issue with that. The U.N. did not respond, and he’s been selling moon acreage ever since. Hope claims to have sold over 600 million acres, with the largest going for over $13 million.

Real estate update: If he really has those checks in hand, then Hope is a genius and this is indeed a very lopsided deal—he’s selling uninhabited land that will be completely inaccessible in the lifetimes of the buyers. Not that we should necessarily applaud him for it.

At worst, “I’d classify him as a huckster,” says Reiss. “And it appears his interpretation of the law is incorrect. The fact that the government hasn’t responded to his letter doesn’t give him rights to the land.” So, even if he does have all that money, it could get him in a whole lot of trouble.