repair cost estimates

[Dan Miller]

I'm looking for some general guidance on rehab costs that I can apply to my MAO formula when making offers. I know it depends on a bunch of things, but looking for general rules of thumb (incl labor). I work in DC, so I know costs may be higher here than other parts of the country, but just looking for general estimates of labor + materials:

1) Kitchens: what should I assume for cost per linear foot (incl. cabinets--uppers and lowers, countertops (granite), sink, fixtures. What about kitchen flooring? any rules of thumb? I've heard $200-300 per linear foot.

2) Bathrooms: general costs to gut a bathroom, including tub and put in all new stuff (tiling, tub, vanity, flooring, toilet, lighting, etc.). I've heard about 5k.

3) Installing nice new windows

4) New roof

Thanks,
Dan