Do you know how many dollars your spare room is costing you?

by Millionaire Mommy Next Door on May 12, 2010

in Million Dollar Recipes,Real Estate,Save Money (frugal ideas)

Do you have a guest room but few friends? (sorry.) A formal dining room that looks pretty because it rarely sees a crumb? A formal living room that only gets walked through on the way to your home’s hub: the kitchen and family room? Spare rooms… you dust them, vacuum them, furnish them, paint them, fuss over them… but rarely do you LIVE in them.

How many dollars does a spare room cost?

I pondered this question during our walk to our neighborhood park today. Our condo is surrounded by large suburban homes. Each home statistically has an average of 2.5 people living in it. I suppose the poor little 0.5 member is missing a few body parts. Probably from all that excess dusting. I digress. I look at these gigantic homes and wonder how many of their rooms get LIVED in on a daily basis versus how many sit pretty all day long but never see any true love.

So being the environmentally sensitive money gal that I am, I crunched some numbers today to see if I might encourage a few folks to join me in downsizing to a just-the-right-size home.

For those of you that don’t enjoy numbers as much as I do, I’ll get to the punchline pronto:

In my neighborhood, a typical 12′ x 12′ spare room (guest room, formal dining room, whatever) could cost about $350,000 EACH over the course of a 30 year mortgage!

Mommy’s Million Dollar Recipe: Dusty Room Dump-lings

Downsize your home by 432 square feet (three 12’x12′ rooms)
Which will reduce your monthly housing expenses by $530 a month
And invest your monthly savings into a diversified investment portfolio
Yield: Over one million dollars ($1,000,000) in 30 years!

For my fellow number nerds, here’s the assumptions I used for my calculations:

12′ x 12′ = 144 square foot spare room
Typical cost of housing per square foot (in my location) = $150
= $21,600 cost per spare room
@ 5.5% mortgage interest rate for 30 year fixed
= $122.64 month / room in principal and interest cost
+ $18 / month / room in property taxes (1% of value annually)
+ $9 / month / room in homeowner’s insurance (0.5% of value annually)
+ $27 / month / room in allowance for periodic maintenance, repairs, remodeling (1.5% of value annually)
= $176.64 / month / room…
…NOT including extra utility expense or furnishings
+ lost opportunity cost of $176.64 savings invested at 10% long-term compounding average annual return for 30 years (mortgage term)
= $348,692 TOTAL PER SPARE ROOM (x 3 rooms = $1,046,076)

So what do you think? Is this million dollar recipe worth dumping a spare room or three?

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