Cost of a second story addition

kaysdAugust 4, 2010

We are considering adding a 500 - 550 square foot master suite addition onto our house. The current master is too small, and bumping it out would be difficult due to the pool location. Adding on would allow us to have a decent sized bathroom and walk-in closet, and the second floor would have an amazing view of the water and downtown.

Can anyone give me a rough idea of the cost of adding a second story? We are in Southern California. I just want to get an idea whether we might be able to afford the project before calling contractors to come out and give us quotes.

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rlthomas7

I can tell you what we're doing in Central Pennsylvania. We are removing one side of our home which is a single story and rebuilding it as a two-story. We're also replacing the whole house roof and siding and adding two windows. This is a three-room addition, with a family room on the first floor and a master bedroom and bathroom on the second floor. Our total cost will be around $90,000.

One thing that frustrated me was getting the estimates. It was SO hard to compare apples to apples because every company had different ideas about how to do things, what needed to be done and what they'd include. We went with the company that had the best word of mouth and where the contractor cared enough about details like our electric panel and our heating/cooling systems to look at them before making the estimate.

    Bookmark   August 4, 2010 at 4:20PM
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kaysd

Thanks for the info, rlthomas7. How many square feet is your addition?

If we could do this project in CA for $90,000, we might go for it. I'm trying to figure out where we could add a staircase to get to the new second floor. I am afraid we might have to lose the small bedroom next to the entry hall to create a staircase.

    Bookmark   August 4, 2010 at 5:10PM
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rlthomas7

Total square footage is almost 800 sf; 395 up and 395 down. If you're really thinking of trying it, I'd ask around for some contractor recommendations from your friends. I asked my Facebook friends and found several good leads. And if you want more information about anything we're doing, just ask. I had a hard time finding people who had "survived" an addition and could share tips!

    Bookmark   August 4, 2010 at 8:05PM
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dainaadele

We added a 500sq ft second story addition in 2006 for $50,000-60,000, where the contractor stopped after the drywall was in (we did the painting, trim & doors, and installed the floors -I am a woodworker). Even in a small town in Nebraska it was a good deal. (The contractor was new in the town and needed the job.)

As far as advice for rlthomas7: You can survive, but plan on wishing you were dead while it is going on....

    Bookmark   August 5, 2010 at 8:35AM
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rlthomas7

Ha! Did I mention that we have a two-year old and that I stay home with him two days a week? Dealing with him through this process has been the biggest challenge. At least I can take him to daycare for his naps...

    Bookmark   August 5, 2010 at 12:18PM
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kaysd

We lived through an addition on our last house back in 2003, but that was just converting a poorly done enclosed patio into a living room. It was on the first floor and at the opposite end of our house from the bedrooms. Still, all the drywell dust and noise was not pleasant. This time, we would literally have work going on above our heads.

We have a 21 month old daughter. She is in daycare from 9-6 while my husband and I work, but all the mess and changes will add upheaval to her life. I am not looking forward to the process, but I would so like to have a functional master suite.

    Bookmark   August 5, 2010 at 5:15PM
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dainaadele

No kids through ours. But we did have a drought... unitl the day the roof was torn off. Got 3 inches of rain that night. With gale force winds of up to 63 mph. Tarping wasn't an option with those winds. We had warter pouring through the gaps over our hardwood floors on the bottom level.

This is how we saved the floors, we used a wet/dry vac to suck up the water as it pooled into the bottom:

I guess when we talk about the cost of adding on, it also applied to the non-monetary payment of time/effort/survival....

    Bookmark   August 5, 2010 at 5:16PM
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TheFranLover

KAYSD!! This is the longest of long shots, but are you still there? It sounds like you were looking to do EXACTLY what we're currently looking to do with a house we just bought. Heck, you probably are in the roughly the same area. Our new house is in San Diego and we're looking to add approx 500 sq ft master bedroom suite. Did you ever move fwd with the project?

    Bookmark   March 27, 2012 at 10:24PM
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