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Cost to Build a House in the State of Washington with Finished Basement
Summary: How much does it cost to build a house in Washington State with a finished basement. The cost per square foot is much less when you include a finished basement.
Note: In order for a basement to be considered habitable space, it must have two (2) means of ingress & egress. This can be accomplished with doors, as in an walkout basement, which requires a sloping lot, or with large windows, or with an emergency basement door.
Rustic meets modern in the Adkins:
The covered porch and shutters give the compact Adkins the look of a traditional farm-style home, but the interior is entirely up to date. Kitchen, dining room and living room flow together, creating a feeling of openness, with nine-foot ceilings adding to the sense of volume.
Associated Designs, Inc. Plan #30-197
Country Home Plans - Shutters, multi paned windows, and a full front porch create a warm welcome to this country home plan. The living room featuring a fireplace, flows into the dining room then to an open kitchen. A front-facing den, open to the entry, could be used as home office.
Total Living Area: 1604 square feet plus the finished basement are of 838 equals 2,442 sq ft
1st Floor: 838 square feet
2nd Floor: 766 square feet
Finished Basement: 838 square feet
Bonus: 353 square feet (unfinished)
Garage: 520 square feet
Half Baths: 1
Construction cost software makes preliminary approximate cost estimating easy.
Using this shape for the foundation on the cost to build calculator and Quality Class 6 (Minimum Standard Quality) for the Seattle, WA area, I came up with $325,222 including a General Contractor markup of $36,734. That’s an approximate cost of total living area of $133.18 per sq. ft.
Land and land development costs and impact fees are not included in the total cost to build.
Total sq.ft. = 1604 sq. ft. + 838 sq. ft. finished basement = 2,442 Total sq. ft. of living area.
If the basement is on flat land, you will need an “Emergency Basement Door”
Note:The cost of this Emergency Basement Door is not included in the "Cost to Build"
Here is an example of a Emergency Basement Door from Bilco:
Basement Door - Ultra Series from Bilco: Satisfies IRC 2006 Building code requirements for emergency egress in finished basement areas.
You should keep in mind that the cost to build for this example, or any house plan, can vary considerably depending quality of materials selected, and on actual bids for labor and material.
Again, the estimate for this house is an approximate one based on “minimum standard” quality materials.
Until you actually start getting bids and entering them into your own spreadsheet (see my spreadsheet page for FREE spreadsheets), it will remain approximate. Carl Heldmann (2014)