Track your comments!
[x]


When you register, comments on your articles and replies to your comments appear here. Register Now!

Sign in to your account
[x]

Not a Scientific Blogging member yet?

Register Now for a Free Scientificblogging.com Account

  • Customize your profile with pictures, banner, a blogroll and more.
  • Leave comments on articles, add other members to your friend lists, chat with people on the site.
  • Write blog posts that can be seen by hundreds of thousands of readers.

It's free and it only takes a minute!

Already a Scientific Blogging member?

Sign In Now

Banner
By Garth Sundem | June 6th 2007 08:56 AM | 4 comments | Print | E-mail | Track Comments
.

More The Geeks' Guide to World Domination articles

All

About Garth Sundem

Do you need a Monday morning shot of geekery?

If so, you've come to the right place. Every Monday, early, I'll drop splendid geekery from the fields of physics, math, computer science, zoology


... Full Bio

'Tis the season—the real estate season—and though this one isn't shaping up to be the boomer of two years ago, or even the desperate sell-off of last summer, people will nevertheless be buying houses. If you are one of these people, read on. It's a buyers market this year (or so my real estate agent tells me), but which house is right for you? Use this equation to find out—it works surprisingly well.


Real Estate Equation Two Rows

As you will notice, this equation is really just a way to quantify your opinions—and add some objectivity to the house-buying process! How important is something to you? Well, if you think a factor is a big deal, the equation weights it more heavily. Other than the basics of assigning ranks to factors like price and location and then adding everything up, the equation says the price of your dream house should be within about 25% of your ideal, with a little less being better than a little more. The opposite is true of bedrooms and square footage—a little more of each is better than a little less. Be careful with the term "W", for the fix-up Work you are willing to do—while you can't affect location or price with work, you can affect everything else and thus your Bob-Villa-ness is a powerful term (and a high value can turn a relative junker into your dream home). If you're not a contractor, stick to values below five. 

And don't be intimidated by the equation's length—once you get into it, you'll see it's easy! 

Also, this equation doesn't spit out absolute numbers—it's not a scale from 1-100 or anything. The scores are relative, so it's best use is in comparing a couple houses. Go home shopping for the day and then use this equation to see if the scores match your intuitive opinions. Actually, this is one of the more useful equations I've written and gives a fairly honest evaluation of which house best fits your (objective) needs.

As my wife is starting a PhD program in Santa Barbara, if anyone wants to sell a SB beachfront bungalow, 2B, 1.5ba for under $350k, please let me know (and then see a psychologist).

 


Calculate Your House Score

Real Estate Equation

Or, broken into two rows so you can see it better:

Real Estate Equation Two Rows

Again, don't freak out—once you start putting in numbers, you'll see it's cake.

The Variables:

•    In the blanks next to each question below, rank these variables 1-8 in terms of their importance to you (with 1 being the MOST important). 

•    ___ PI= Your ideal price
•    ___ L= How ideal is the house’s location? (1-10 with 10 being perfect—include proximity to work/play, desirability of neighborhood and schools, etc.)
•    ___ BI= Your home should have AT LEAST how many bedrooms?
•    ___ FI= Desired square footage (1,000 is small; 4,000 is huge)
•    ___ A= Aesthetics: how closely do the aesthetics of this house match your lifestyle? (1-10 with 10 being perfectly—include in this term how the house “feels” to you...or your significant other)
•    ___ R= Is this house in good repair? (1-10 with 10 being “newly built” and 1 being “Bob Villa needed”)
•    ___ S= How closely does this house match your desired special features (for example, wheelchair access, # of bathrooms, satellite dish, detached garage, hardwood floors, gourmet kitchen, air conditioning, view, fireplace, pool, etc.)? Rank this 1-10 with 10 being “it perfectly matches my desired special features”.
•    ___ I= How good of an investment is this house (1-10 with 10 being Santa Barbara beachfront bungalow for under $350k)?
•    W= How willing/excited/able are you to put work into a non-ideal house? (1-10 with 10 being “we are Bob Villa and Martha Stewart”)
•    PA= The actual price of this home
•    BA= How many bedrooms does this house have?
•    FA= The actual square footage of this house

For the mathematically inclined: if you want to add a factor that is not currently in this list, I'll bet you can figure out how (and don't forget to revise the ranks to 1-9, instead of 1-8). Good Luck!

Also, for a look at the economics of realtors, check out the book "The Undercover Economist" by Tim Harford. Disclaimer: I'm in no way connected to this book—just think it's cool. 


Comments

Kimberly Crandell's picture
Great stuff, Garth... as usual! You could spin this approach for lots of big life decisions, like: what car should I buy, what college should I attend, where should I go for vacation...? (Personally, for the vacation formula, I would need a "mini-umbrella" variable for the availablity of fruity tropical drinks... but that may just be me.) Thanks, Garth!

Garth Sundem's picture

You're right! You could use this general equation format to quantify nearly anything—as long as you can define the factors. In fact, I did the same thing with the earlier post "Which parenting method book is right for you?" Enjoy!

Cheers, 

Garth Sundem, itinerant math geek, pop pseudo-psychologist, and author of Geek Logik: 50 Foolproof Equations for Everyday Life


Hi Garth - love your work. Also, I wanted to pass on that I have made an Excel spinner to allow a user to enter the parameters and it spit out a result - send me an email if you are ineterested in looking at it (I did it for the Office gossip question).

Cheers
David

Hi david can u email me the Excel sheet you made. regards. Pinsith

Add a comment

The content of this field is kept private and will not be shown publicly.
  • Allowed HTML tags: <sup> <sub> <a> <em> <strong> <center> <cite> <code> <TH><ul> <ol> <li> <dl> <dt> <dd> <img> <br> <p> <blockquote> <strike> <object> <param> <embed> <del> <pre> <b> <i> <table> <tbody> <div> <tr> <td> <h1> <h2> <h3> <h4> <h5> <h6> <hr> <iframe>
  • Lines and paragraphs break automatically.
  • Web page addresses and e-mail addresses turn into links automatically.
CAPTCHA
If you register, you will never be bothered to prove you are human again. And you get a real editor toolbar to use instead of this HTML thing that wards off spam bots.