Also known as Theraphosa blondi, the said kind of arachnid has been labelled by the Guinness Book of World Records as the world's biggest type of spider.
Create falling waters. In most basement bathrooms, you must create âfall,â or you must give the waste a push. All this pushing and falling costs money: Adding a basement bathroom could add $10,000 to your basement retreat budget. Wastewater from your basement bathroom sink, shower or tub, and toilet must have enough slope (another word for âfallâ) to drain properly and effectively.
1. Edit Answer (for another 5 minutes). Nationwide average code to modify a house to add a bathroom (without pushing out walls or adding foundation) is about $37,000. Some are done on the cheap for about $15,000 for a half-bath, and fancy ones of course for 5/4 bath or fancier can run $50-80,000. Obviously, if you can back it up to another bath for easy in-wall pipe access that will help keep your costs down.