This essay shows how natural areas in Älta, a part of Nacka municipality southeast from Stockholm, been changed quantitatively and qualitative as a result of the increased housing construction in the area. Three issues are discussed. Namely: how has Ältas green areas been changed in sizes and quality in line with the settlement's expansion, what is the reason or the reasons to building of different types of accommodations, what has been and is the operators in connection with building of the different types of accommodations?

The essay shows that the green areas has been decreased with over 2 km from 1901 to 2000 and in addition to these areas of approximately 1,1km been converted to a planned green structure. Älta has during the years gone through four eras of building types an era of small family houses – an era of building one million houses on a national scale – an era of terrace houses – an era of sporadic building of different housing types (one family houses, pair houses, terrace houses and small blocks of flats). From the result we can see how big surfaces are required by the different housing alternatives. We can also provide insight of the different reasons to that the municipality of Nacka chooses these different housing types, the economy reasons and tug-of-war of the population between municipalities by tempting with other alternative accommodations. With this paper we can see who has acted in the area, how this has influenced and which consequences it has led to in Älta, Älta which has had many private operators how has affected the area.