Two Story Addition Plans and Costs Calculator

Two Story Extension Addition

Two Story Extension

In this picture you're looking at a hefty 768 square foot house extension that gave this home an additional family room on the first floor and a master suite on the second floor.

Two Story Extension Plans and Estimated Building Costs


These two story home addition plans are perfect for homes that are already two stories, but need a 2 story extension of the existing house to make room for additional rooms and amenities.


The most common 2 story addition transforms the existing house into an L or T shape as show in the picture on the right.


A common two story addition or multi-level addition will be the adding a family room to the first floor and adding a bedroom to the second floor.



Two Story Addition 

Sometimes people confuse 2 story addition plans with adding another level to their house. When you want to add another floor, we call that the add a level house extension or second story addition. Check out both sets of plans to see the difference.


Quick Tip:You can also build a full basement underneath these 2 story extensions and remodel it in the future for even more living space.




Calculate Your Average Cost for Two Story Additions by Area

Area Cost
New England $173,745
Hartford, CT $177,281
Pacific $183,801
San Jose, CA $197,264
West South Central $147,590
Houston, TX $149,064
Philadelphia, PA $188,747
Mid Atlantic $169,889
Miami, FL $159,938
Boston, MA $195,591
New York, NY $207,959
Charlotte, NC $149,136
South Atlantic $151,057
Detriot, MI $175,551
East North Central $163,914
National Avg. $161,925

2015 National Remodeling Averages Cost vs. Value Report  from Remodeling Magazine. These building costs were factored for a 24' x 16' two story addition built over a crawl space. The first floor being a family room, with the second floor being a bedroom with a full bathroom.  (See Master Suite Addition Plans). 





Two Story Addition Projects Are Trending Again

Here's some trending data I pulled from Google showing once again how the economy began improving starting in 2010.

two story addition on are trending Google Trends


Prior to October of 2010, there wasn't even a blip on the search radar for home improvement projects that cost upwards of 100 grand.


Let's look at the future forecast

good economy trend for the future

The future for our economy looks positive according to Google. Now is the perfect time to build your two-story addition!

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No matter who you call, read my How-to Save Money on Your Home Addition Project. I'll show you how to save thousands of dollars, just like the professionals do. Protection Status for   2004 - 2024 All Rights Reserved Proven Helper, LLC ©

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