Ecological building projects is about far more than just adding insulation; it is a whole new outlook on building and what purpose the building and property in question is constructed to solve.
Building homes which are ecologically sound has the ultimate goal of making a home which is totally environmentally neutral (or even a positive impact if possible), by using recyclable and renewable technology as building materials, using renewable sources of energy, and even generating your own food and recycling your own waste. Taking account of all of these concerns is possible, even if only minimal space is available.
When people are planning out future housing developments, such as in city planning roles, the two things pointed out as being growing issues are space management and making the buildings and building process more ecologically friendly, which means that finding ways of accomplishing both at the same time is one of the big goals of the construction and civil engineering sectors.