According to the Zillow website, which was reporting from the Remodeling Magazine's Cost vs. Value Report, the cost of home improvements is almost never recouped from remodeling and the few times it is, it is almost negligible. As examples:
Siding replacement to an upscale home only adds 3.6%.
For siding replacement on a mid size home, you end up losing 4.5%, only recouping 95.5% of what you spend.
For minor kitchen repair, you lose 1.5%.
Attic bedroom conversion, lose 6.5%
Deck addition lost 9.7%
Basement remodel lose 9.9%
And it continues to get worse.
To see the write-up of home remodels and cost recouping showing the value of home improvements, go to:
Please note, this report does not discuss whether the improvements make the home sell faster, or draws more offers, only the amount that can be recouped upon sale.
The entire article can be found at http://www.remodelingmagazine.com/