National Average Cost: $9,260 Click to see full answer. People also ask, is a walkout basement more expensive?Yes. Usually it is more expensive to get walkout basement from builder. But beside the cost I will tell you living in both no walkout and last one with walkout, is feels so much better to have walkout.Also Know, how much slope do you need for a walkout basement? A little less slope (4-6 ft.) is fine as the house can be raised in front, or the grades adjusted a bit in the finished grading. In general, walk-outs are a little more expensive to build in cold climates as deep footings are required on the walk-out section of the basement. Similarly, can I make my basement a walkout? If you choose to have a walkout basement built onto your home, the process will go something like this: – As long as the area does not to be excavated, it will be marked with stakes, and a backhoe operator will clear the dirt and soil. Not all homes with basements can have a walkout added, but many can.How much does it cost to dig out a basement? Digging deeper. Depending on the size of your basement, the cost of digging it out and underpinning it could cost $50,000 to $90,000. But you’ll gain an entire floor.