Ballpark cost, adding two-story extension
I know no one can tell me exactly, but I'm looking for a general estimate for a big remodeling project. We know that we can't get started right away, but a ballpark figure would give us an idea of when we can start.
We have a two-story row house in south Baltimore City. The kitchen is at the back of the house with a deck on top of it. This was an extension added around 1995, and it wasn't very well done - I believe the homeowner did the work himself. Under the kitchen is a crawl space that is about 3' tall. What we want to do is tear down the existing extension, dig out the crawl space to the same height as the rest of the basement (7') and add a new extension that is two stories. We will need a slab poured in the basement, as well as electrical in all three rooms and plumbing in two of them. We don't need any other work than the construction, electrical and plumbing - even drywall we can do ourselves.
There is existing plumbing in the basement bathroom, which is next to the area to be dug out. We just want to move the washer/dryer to the back of the house so my husband can have the whole front for his workshop, and to rearrange the plumbing so we can make a bigger bathroom. On the top floor, we are planning to add a half bath. The rest of the space in that room will be a walk-in closet. We have a gas stove, so that needs consideration as well, though laying out the kitchen as it is now is fine, so we don't need to move the gas line. The current space is 14 x 10, and that's the size we'll work with.
Can anyone give me an idea of the price range we're looking at for the contract work? Also, how long does this type of construction generally take?