According to a survey carried out in 1937, the total area of the present estate of Ainola amounts to 4.216 hectares, whereas it was only 0.74 hectares in 1904.
The cultivated area at Ainola was at its largest in the 1930s and 1940s, when it was over 0.5 hectares. The area of arable land was just under one hectare. At that time woodland covered about two and a half hectares. Today all the grounds consist of woodland with the exception of the garden.
The diagram shows the borders of the parcels of Ainola in order of acquisition.