Are green homes expensive?

In a word ... YES!!! about 35-50% or more than traditional homes, depending on what you want in it.

BUT, if your going to live there the rest of your life, it will be to your benefit.

The initial start up costs to convert your house into a eco-friendly zone is more expensive in the begining, but the overall costs of running a green home is cheaper, eg: solar pannels conserve energy but are expensive to buy and have installed.

Well, The key to determining if a green home is expensive or not depends in your decision. Try to work with a professional green Realtor that can help you how easy it is to find a green home.

It all depends how much you're willing to spend!

  "Going Green" is more expensive up front! However the peace of mind & future savings down the road can offset alot of that.. Solar being added is a no brainer for the immediate power savings, but add panels accordingly.. Too few will produce little results, where too many can overload inverter/ control switch. There are even recycling systems that can be added to washer drains& pumped into toilets for reuse..

   It all depends on the type/ extent that you go to..

   Good luck w/ it!

Well, it depends on the environment where you live.
Houses made out of mud bricks are really cheap and simple to construct. Some people even add materials such as glass bottles to the walls, just to fill up space and save some brick-making labor (and it is also a way of recycling). In places like china, these are considered pretty poor (socio-economically) dwellings.
However, these houses usually have to be re-built or re-structured every year, because the mud bricks turn to, well, mud. If you live in the desert, though, where there is hardly any moisture or rain, these houses should last for a long time without need for re-structuring.
Bamboo is very cheap, but for construction you need strong thick bamboos. But, like any organic matter, it decomposes.

If planned properly, your return would be greater than your investment.
Green homes can be very expensive, but they do not have to be. Obviously the more money you spend the more energy will be saved, but relatively inexpensive changes to a home’s design can lead to large energy savings.
Also, the improvements should pay for themselves if they are used correctly.
Hope this helps!